github/containerd
2
0
Fork 0
Code Issues Pull Requests Packages Projects Releases 2 Wiki Activity

vendor: containerd/containerd ed261720c8

Browse Source 
full diff: 0131015594...ed261720c8

Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
This commit is contained in:
Sebastiaan van Stijn 2020-05-09 15:51:43 +02:00
parent c784772ba4
commit ee3548dee8
No known key found for this signature in database
GPG Key ID: 76698F39D527CE8C
65 changed files with 2239 additions and 505 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

4
vendor.conf
View File

@ -10,7 +10,7 @@ github.com/BurntSushi/toml 3012a1dbe2e4bd1391d42b32f057
github.com/cespare/xxhash/v2 d7df74196a9e781ede915320c11c378c1b2f3a1f # v2.1.1
github.com/containerd/cgroups b4448137398923af7f4918b8b2ad8249172ca7a6
github.com/containerd/console 8375c3424e4d7b114e8a90a4a40c8e1b40d1d4e6 # v1.0.0
github.com/containerd/containerd 01310155947cb6eec37dcae29742a165e56acb4a
github.com/containerd/containerd ed261720c86d1e700cd5d39175128322baac6dda
github.com/containerd/continuity 0ec596719c75bfd42908850990acea594b7593ac
github.com/containerd/fifo bda0ff6ed73c67bfb5e62bc9c697f146b7fd7f13
github.com/containerd/go-runc a5c2862aed5e6358b305b0e16bfce58e0549b1cd
@ -27,6 +27,8 @@ github.com/gogo/protobuf 5628607bb4c51c3157aacc3a50f0
github.com/golang/protobuf d23c5127dc24889085f8ccea5c9d560a57a879d8 # v1.3.3
github.com/google/uuid 0cd6bf5da1e1c83f8b45653022c74f71af0538a4 # v1.1.1
github.com/grpc-ecosystem/go-grpc-prometheus c225b8c3b01faf2899099b768856a9e916e5087b # v1.2.0
github.com/hashicorp/errwrap 8a6fb523712970c966eefc6b39ed2c5e74880354 # v1.0.0
github.com/hashicorp/go-multierror 886a7fbe3eb1c874d46f623bfa70af45f425b3d1 # v1.0.0
github.com/hashicorp/golang-lru 7f827b33c0f158ec5dfbba01bb0b14a4541fd81d # v0.5.3
github.com/imdario/mergo 7c29201646fa3de8506f701213473dd407f19646 # v0.3.7
github.com/konsorten/go-windows-terminal-sequences edb144dfd453055e1e49a3d8b410a660b5a87613 # v1.0.3

4
vendor/github.com/containerd/containerd/README.md generated vendored
View File

@ -1,9 +1,9 @@
![containerd banner](https://raw.githubusercontent.com/cncf/artwork/master/projects/containerd/horizontal/color/containerd-horizontal-color.png)
[![GoDoc](https://godoc.org/github.com/containerd/containerd?status.svg)](https://godoc.org/github.com/containerd/containerd)
[![Build Status](https://travis-ci.org/containerd/containerd.svg?branch=master)](https://travis-ci.org/containerd/containerd)
[![Build Status](https://github.com/containerd/containerd/workflows/CI/badge.svg)](https://github.com/containerd/containerd/actions?query=workflow%3ACI)
[![Windows Build Status](https://ci.appveyor.com/api/projects/status/github/containerd/containerd?branch=master&svg=true)](https://ci.appveyor.com/project/mlaventure/containerd-3g73f?branch=master)
![](https://github.com/containerd/containerd/workflows/Nightly/badge.svg)
[![Nightlies](https://github.com/containerd/containerd/workflows/Nightly/badge.svg)](https://github.com/containerd/containerd/actions?query=workflow%3ANightly)
[![FOSSA Status](https://app.fossa.io/api/projects/git%2Bhttps%3A%2F%2Fgithub.com%2Fcontainerd%2Fcontainerd.svg?type=shield)](https://app.fossa.io/projects/git%2Bhttps%3A%2F%2Fgithub.com%2Fcontainerd%2Fcontainerd?ref=badge_shield)
[![Go Report Card](https://goreportcard.com/badge/github.com/containerd/containerd)](https://goreportcard.com/report/github.com/containerd/containerd)
[![CII Best Practices](https://bestpractices.coreinfrastructure.org/projects/1271/badge)](https://bestpractices.coreinfrastructure.org/projects/1271)

17
vendor/github.com/containerd/containerd/archive/tar_unix.go generated vendored
View File

@ -22,12 +22,11 @@ import (
"archive/tar"
"os"
"strings"
"sync"
"syscall"
"github.com/containerd/containerd/sys"
"github.com/containerd/continuity/fs"
"github.com/containerd/continuity/sysx"
"github.com/opencontainers/runc/libcontainer/system"
"github.com/pkg/errors"
"golang.org/x/sys/unix"
)
@ -84,21 +83,11 @@ func mkdir(path string, perm os.FileMode) error {
return os.Chmod(path, perm)
}
var (
inUserNS bool
nsOnce sync.Once
)
func setInUserNS() {
inUserNS = system.RunningInUserNS()
}
func skipFile(hdr *tar.Header) bool {
switch hdr.Typeflag {
case tar.TypeBlock, tar.TypeChar:
// cannot create a device if running in user namespace
nsOnce.Do(setInUserNS)
return inUserNS
return sys.RunningInUserNS()
default:
return false
}
@ -125,7 +114,7 @@ func handleTarTypeBlockCharFifo(hdr *tar.Header, path string) error {
func handleLChmod(hdr *tar.Header, path string, hdrInfo os.FileInfo) error {
if hdr.Typeflag == tar.TypeLink {
if fi, err := os.Lstat(hdr.Linkname); err == nil && (fi.Mode()&os.ModeSymlink == 0) {
if err := os.Chmod(path, hdrInfo.Mode()); err != nil {
if err := os.Chmod(path, hdrInfo.Mode()); err != nil && !os.IsNotExist(err) {
return err
}
}

6
vendor/github.com/containerd/containerd/client.go generated vendored
View File

@ -58,7 +58,6 @@ import (
"github.com/containerd/containerd/snapshots"
snproxy "github.com/containerd/containerd/snapshots/proxy"
"github.com/containerd/typeurl"
"github.com/gogo/protobuf/types"
ptypes "github.com/gogo/protobuf/types"
ocispec "github.com/opencontainers/image-spec/specs-go/v1"
specs "github.com/opencontainers/runtime-spec/specs-go"
@ -319,6 +318,9 @@ type RemoteContext struct {
// Snapshotter used for unpacking
Snapshotter string
// SnapshotterOpts are additional options to be passed to a snapshotter during pull
SnapshotterOpts []snapshots.Opt
// Labels to be applied to the created image
Labels map[string]string
@ -720,7 +722,7 @@ func (c *Client) Server(ctx context.Context) (ServerInfo, error) {
}
c.connMu.Unlock()
response, err := c.IntrospectionService().Server(ctx, &types.Empty{})
response, err := c.IntrospectionService().Server(ctx, &ptypes.Empty{})
if err != nil {
return ServerInfo{}, err
}

7
vendor/github.com/containerd/containerd/client_opts.go generated vendored
View File

@ -22,6 +22,8 @@ import (
"github.com/containerd/containerd/images"
"github.com/containerd/containerd/platforms"
"github.com/containerd/containerd/remotes"
"github.com/containerd/containerd/snapshots"
"google.golang.org/grpc"
)
@ -138,10 +140,11 @@ func WithUnpackOpts(opts []UnpackOpt) RemoteOpt {
}
}
// WithPullSnapshotter specifies snapshotter name used for unpacking
func WithPullSnapshotter(snapshotterName string) RemoteOpt {
// WithPullSnapshotter specifies snapshotter name used for unpacking.
func WithPullSnapshotter(snapshotterName string, opts ...snapshots.Opt) RemoteOpt {
return func(_ *Client, c *RemoteContext) error {
c.Snapshotter = snapshotterName
c.SnapshotterOpts = opts
return nil
}
}

4
vendor/github.com/containerd/containerd/cmd/containerd/command/main.go generated vendored
View File

@ -227,6 +227,10 @@ can be used and modified as necessary as a custom configuration.`
}
serve(ctx, l, server.ServeGRPC)
if err := notifyReady(ctx); err != nil {
log.G(ctx).WithError(err).Warn("notify ready failed")
}
log.G(ctx).Infof("containerd successfully booted in %fs", time.Since(start).Seconds())
<-done
return nil

4
vendor/github.com/containerd/containerd/cmd/containerd/command/main_unix.go generated vendored
View File

@ -52,6 +52,10 @@ func handleSignals(ctx context.Context, signals chan os.Signal, serverC chan *se
case unix.SIGPIPE:
continue
default:
if err := notifyStopping(ctx); err != nil {
log.G(ctx).WithError(err).Error("notify stopping failed")
}
if server == nil {
close(done)
return

5
vendor/github.com/containerd/containerd/cmd/containerd/command/main_windows.go generated vendored
View File

@ -50,6 +50,11 @@ func handleSignals(ctx context.Context, signals chan os.Signal, serverC chan *se
server = s
case s := <-signals:
log.G(ctx).WithField("signal", s).Debug("received signal")
if err := notifyStopping(ctx); err != nil {
log.G(ctx).WithError(err).Error("notify stopping failed")
}
if server == nil {
close(done)
return

47
vendor/github.com/containerd/containerd/cmd/containerd/command/notify_linux.go generated vendored Normal file
View File

@ -0,0 +1,47 @@
// +build linux
/*
Copyright The containerd Authors.
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
*/
package command
import (
"context"
sd "github.com/coreos/go-systemd/v22/daemon"
"github.com/containerd/containerd/log"
)
// notifyReady notifies systemd that the daemon is ready to serve requests
func notifyReady(ctx context.Context) error {
return sdNotify(ctx, sd.SdNotifyReady)
}
// notifyStopping notifies systemd that the daemon is about to be stopped
func notifyStopping(ctx context.Context) error {
return sdNotify(ctx, sd.SdNotifyStopping)
}
func sdNotify(ctx context.Context, state string) error {
notified, err := sd.SdNotify(false, state)
log.G(ctx).
WithError(err).
WithField("notified", notified).
WithField("state", state).
Debug("sd notification")
return err
}

31
vendor/github.com/containerd/containerd/cmd/containerd/command/notify_unsupported.go generated vendored Normal file
View File

@ -0,0 +1,31 @@
// +build !linux
/*
Copyright The containerd Authors.
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
*/
package command
import (
"context"
)
func notifyReady(ctx context.Context) error {
return nil
}
func notifyStopping(ctx context.Context) error {
return nil
}

3
vendor/github.com/containerd/containerd/cmd/containerd/command/service_windows.go generated vendored
View File

@ -49,8 +49,6 @@ var (
allocConsole = kernel32.NewProc("AllocConsole")
oldStderr windows.Handle
panicFile *os.File
service *handler
)
const defaultServiceName = "containerd"
@ -282,7 +280,6 @@ func launchService(s *server.Server, done chan struct{}) error {
return err
}
service = h
go func() {
if interactive {
err = debug.Run(serviceNameFlag, h)

39
vendor/github.com/containerd/containerd/container.go generated vendored
View File

@ -32,6 +32,7 @@ import (
"github.com/containerd/containerd/images"
"github.com/containerd/containerd/oci"
"github.com/containerd/containerd/runtime/v2/runc/options"
"github.com/containerd/containerd/sys"
"github.com/containerd/typeurl"
prototypes "github.com/gogo/protobuf/types"
ver "github.com/opencontainers/image-spec/specs-go"
@ -422,14 +423,33 @@ func attachExistingIO(response *tasks.GetResponse, ioAttach cio.Attach) (cio.IO,
// loadFifos loads the containers fifos
func loadFifos(response *tasks.GetResponse) *cio.FIFOSet {
path := getFifoDir([]string{
fifos := []string{
response.Process.Stdin,
response.Process.Stdout,
response.Process.Stderr,
})
closer := func() error {
return os.RemoveAll(path)
}
closer := func() error {
var (
err error
dirs = map[string]struct{}{}
)
for _, fifo := range fifos {
if isFifo, _ := sys.IsFifo(fifo); isFifo {
if rerr := os.Remove(fifo); err == nil {
err = rerr
}
dirs[filepath.Dir(fifo)] = struct{}{}
}
}
for dir := range dirs {
// we ignore errors here because we don't
// want to remove the directory if it isn't
// empty
os.Remove(dir)
}
return err
}
return cio.NewFIFOSet(cio.Config{
Stdin: response.Process.Stdin,
Stdout: response.Process.Stdout,
@ -437,14 +457,3 @@ func loadFifos(response *tasks.GetResponse) *cio.FIFOSet {
Terminal: response.Process.Terminal,
}, closer)
}
// getFifoDir looks for any non-empty path for a stdio fifo
// and returns the dir for where it is located
func getFifoDir(paths []string) string {
for _, p := range paths {
if p != "" {
return filepath.Dir(p)
}
}
return ""
}

39
vendor/github.com/containerd/containerd/content/local/store.go generated vendored
View File

@ -92,7 +92,11 @@ func NewLabeledStore(root string, ls LabelStore) (content.Store, error) {
}
func (s *store) Info(ctx context.Context, dgst digest.Digest) (content.Info, error) {
p := s.blobPath(dgst)
p, err := s.blobPath(dgst)
if err != nil {
return content.Info{}, errors.Wrapf(err, "calculating blob info path")
}
fi, err := os.Stat(p)
if err != nil {
if os.IsNotExist(err) {
@ -123,7 +127,10 @@ func (s *store) info(dgst digest.Digest, fi os.FileInfo, labels map[string]strin
// ReaderAt returns an io.ReaderAt for the blob.
func (s *store) ReaderAt(ctx context.Context, desc ocispec.Descriptor) (content.ReaderAt, error) {
p := s.blobPath(desc.Digest)
p, err := s.blobPath(desc.Digest)
if err != nil {
return nil, errors.Wrapf(err, "calculating blob path for ReaderAt")
}
fi, err := os.Stat(p)
if err != nil {
if !os.IsNotExist(err) {
@ -150,7 +157,12 @@ func (s *store) ReaderAt(ctx context.Context, desc ocispec.Descriptor) (content.
// While this is safe to do concurrently, safe exist-removal logic must hold
// some global lock on the store.
func (s *store) Delete(ctx context.Context, dgst digest.Digest) error {
if err := os.RemoveAll(s.blobPath(dgst)); err != nil {
bp, err := s.blobPath(dgst)
if err != nil {
return errors.Wrapf(err, "calculating blob path for delete")
}
if err := os.RemoveAll(bp); err != nil {
if !os.IsNotExist(err) {
return err
}
@ -166,7 +178,11 @@ func (s *store) Update(ctx context.Context, info content.Info, fieldpaths ...str
return content.Info{}, errors.Wrapf(errdefs.ErrFailedPrecondition, "update not supported on immutable content store")
}
p := s.blobPath(info.Digest)
p, err := s.blobPath(info.Digest)
if err != nil {
return content.Info{}, errors.Wrapf(err, "calculating blob path for update")
}
fi, err := os.Stat(p)
if err != nil {
if os.IsNotExist(err) {
@ -512,7 +528,10 @@ func (s *store) writer(ctx context.Context, ref string, total int64, expected di
// TODO(stevvooe): Need to actually store expected here. We have
// code in the service that shouldn't be dealing with this.
if expected != "" {
p := s.blobPath(expected)
p, err := s.blobPath(expected)
if err != nil {
return nil, errors.Wrap(err, "calculating expected blob path for writer")
}
if _, err := os.Stat(p); err == nil {
return nil, errors.Wrapf(errdefs.ErrAlreadyExists, "content %v", expected)
}
@ -607,11 +626,17 @@ func (s *store) Abort(ctx context.Context, ref string) error {
return nil
}
func (s *store) blobPath(dgst digest.Digest) string {
return filepath.Join(s.root, "blobs", dgst.Algorithm().String(), dgst.Hex())
func (s *store) blobPath(dgst digest.Digest) (string, error) {
if err := dgst.Validate(); err != nil {
return "", errors.Wrapf(errdefs.ErrInvalidArgument, "cannot calculate blob path from invalid digest: %v", err)
}
return filepath.Join(s.root, "blobs", dgst.Algorithm().String(), dgst.Hex()), nil
}
func (s *store) ingestRoot(ref string) string {
// we take a digest of the ref to keep the ingest paths constant length.
// Note that this is not the current or potential digest of incoming content.
dgst := digest.FromString(ref)
return filepath.Join(s.root, "ingest", dgst.Hex())
}

4
vendor/github.com/containerd/containerd/content/local/writer.go generated vendored
View File

@ -115,8 +115,8 @@ func (w *writer) Commit(ctx context.Context, size int64, expected digest.Digest,
}
var (
ingest = filepath.Join(w.path, "data")
target = w.s.blobPath(dgst)
ingest = filepath.Join(w.path, "data")
target, _ = w.s.blobPath(dgst) // ignore error because we calculated this dgst
)
// make sure parent directories of blob exist

25
vendor/github.com/containerd/containerd/contrib/seccomp/seccomp_default.go generated vendored
View File

@ -56,7 +56,6 @@ func DefaultProfile(sp *specs.Spec) *specs.LinuxSeccomp {
"accept4",
"access",
"alarm",
"alarm",
"bind",
"brk",
"capget",
@ -66,8 +65,11 @@ func DefaultProfile(sp *specs.Spec) *specs.LinuxSeccomp {
"chown",
"chown32",
"clock_getres",
"clock_getres_time64",
"clock_gettime",
"clock_gettime64",
"clock_nanosleep",
"clock_nanosleep_time64",
"close",
"connect",
"copy_file_range",
@ -117,6 +119,7 @@ func DefaultProfile(sp *specs.Spec) *specs.LinuxSeccomp {
"ftruncate",
"ftruncate64",
"futex",
"futex_time64",
"futimesat",
"getcpu",
"getcwd",
@ -163,6 +166,7 @@ func DefaultProfile(sp *specs.Spec) *specs.LinuxSeccomp {
"io_destroy",
"io_getevents",
"io_pgetevents",
"io_pgetevents_time64",
"ioprio_get",
"ioprio_set",
"io_setup",
@ -200,7 +204,9 @@ func DefaultProfile(sp *specs.Spec) *specs.LinuxSeccomp {
"mq_notify",
"mq_open",
"mq_timedreceive",
"mq_timedreceive_time64",
"mq_timedsend",
"mq_timedsend_time64",
"mq_unlink",
"mremap",
"msgctl",
@ -221,11 +227,13 @@ func DefaultProfile(sp *specs.Spec) *specs.LinuxSeccomp {
"pipe2",
"poll",
"ppoll",
"ppoll_time64",
"prctl",
"pread64",
"preadv",
"prlimit64",
"pselect6",
"pselect6_time64",
"pwrite64",
"pwritev",
"read",
@ -236,6 +244,7 @@ func DefaultProfile(sp *specs.Spec) *specs.LinuxSeccomp {
"recv",
"recvfrom",
"recvmmsg",
"recvmmsg_time64",
"recvmsg",
"remap_file_pages",
"removexattr",
@ -251,6 +260,7 @@ func DefaultProfile(sp *specs.Spec) *specs.LinuxSeccomp {
"rt_sigreturn",
"rt_sigsuspend",
"rt_sigtimedwait",
"rt_sigtimedwait_time64",
"rt_tgsigqueueinfo",
"sched_getaffinity",
"sched_getattr",
@ -259,6 +269,7 @@ func DefaultProfile(sp *specs.Spec) *specs.LinuxSeccomp {
"sched_get_priority_min",
"sched_getscheduler",
"sched_rr_get_interval",
"sched_rr_get_interval_time64",
"sched_setaffinity",
"sched_setattr",
"sched_setparam",
@ -270,6 +281,7 @@ func DefaultProfile(sp *specs.Spec) *specs.LinuxSeccomp {
"semget",
"semop",
"semtimedop",
"semtimedop_time64",
"send",
"sendfile",
"sendfile64",
@ -335,12 +347,16 @@ func DefaultProfile(sp *specs.Spec) *specs.LinuxSeccomp {
"time",
"timer_create",
"timer_delete",
"timerfd_create",
"timerfd_gettime",
"timerfd_settime",
"timer_getoverrun",
"timer_gettime",
"timer_gettime64",
"timer_settime",
"timer_settime64",
"timerfd_create",
"timerfd_gettime",
"timerfd_gettime64",
"timerfd_settime",
"timerfd_settime64",
"times",
"tkill",
"truncate",
@ -352,6 +368,7 @@ func DefaultProfile(sp *specs.Spec) *specs.LinuxSeccomp {
"unlinkat",
"utime",
"utimensat",
"utimensat_time64",
"utimes",
"vfork",
"vmsplice",

4
vendor/github.com/containerd/containerd/diff/apply/apply_linux.go generated vendored
View File

@ -26,7 +26,7 @@ import (
"github.com/containerd/containerd/archive"
"github.com/containerd/containerd/errdefs"
"github.com/containerd/containerd/mount"
"github.com/opencontainers/runc/libcontainer/system"
"github.com/containerd/containerd/sys"
"github.com/pkg/errors"
)
@ -35,7 +35,7 @@ func apply(ctx context.Context, mounts []mount.Mount, r io.Reader) error {
case len(mounts) == 1 && mounts[0].Type == "overlay":
// OverlayConvertWhiteout (mknod c 0 0) doesn't work in userns.
// https://github.com/containerd/containerd/issues/3762
if system.RunningInUserNS() {
if sys.RunningInUserNS() {
break
}
path, parents, err := getOverlayPath(mounts[0].Options)

8
vendor/github.com/containerd/containerd/lease.go generated vendored
View File

@ -25,11 +25,11 @@ import (
// WithLease attaches a lease on the context
func (c *Client) WithLease(ctx context.Context, opts ...leases.Opt) (context.Context, func(context.Context) error, error) {
nop := func(context.Context) error { return nil }
_, ok := leases.FromContext(ctx)
if ok {
return ctx, func(context.Context) error {
return nil
}, nil
return ctx, nop, nil
}
ls := c.LeasesService()
@ -44,7 +44,7 @@ func (c *Client) WithLease(ctx context.Context, opts ...leases.Opt) (context.Con
l, err := ls.Create(ctx, opts...)
if err != nil {
return nil, nil, err
return ctx, nop, err
}
ctx = leases.WithLease(ctx, l.ID)

4
vendor/github.com/containerd/containerd/metrics/cgroups/v1/cgroups.go generated vendored
View File

@ -35,7 +35,7 @@ import (
// NewTaskMonitor returns a new cgroups monitor
func NewTaskMonitor(ctx context.Context, publisher events.Publisher, ns *metrics.Namespace) (runtime.TaskMonitor, error) {
collector := newCollector(ns)
collector := NewCollector(ns)
oom, err := newOOMCollector(ns)
if err != nil {
return nil, err
@ -49,7 +49,7 @@ func NewTaskMonitor(ctx context.Context, publisher events.Publisher, ns *metrics
}
type cgroupsMonitor struct {
collector *collector
collector *Collector
oom *oomCollector
context context.Context
publisher events.Publisher

5
vendor/github.com/containerd/containerd/metrics/cgroups/v1/metric.go generated vendored
View File

@ -24,6 +24,9 @@ import (
"github.com/prometheus/client_golang/prometheus"
)
// IDName is the name that is used to identify the id being collected in the metric
var IDName = "container_id"
type value struct {
v float64
l []string
@ -41,7 +44,7 @@ type metric struct {
func (m *metric) desc(ns *metrics.Namespace) *prometheus.Desc {
// the namespace label is for containerd namespaces
return ns.NewDesc(m.name, m.help, m.unit, append([]string{"container_id", "namespace"}, m.labels...)...)
return ns.NewDesc(m.name, m.help, m.unit, append([]string{IDName, "namespace"}, m.labels...)...)
}
func (m *metric) collect(id, namespace string, stats *v1.Metrics, ns *metrics.Namespace, ch chan<- prometheus.Metric, block bool) {

49
vendor/github.com/containerd/containerd/metrics/cgroups/v1/metrics.go generated vendored
View File

@ -27,26 +27,33 @@ import (
"github.com/containerd/containerd/log"
v1 "github.com/containerd/containerd/metrics/types/v1"
"github.com/containerd/containerd/namespaces"
"github.com/containerd/containerd/runtime"
"github.com/containerd/typeurl"
metrics "github.com/docker/go-metrics"
"github.com/gogo/protobuf/types"
"github.com/prometheus/client_golang/prometheus"
)
// Statable type that returns cgroup metrics
type Statable interface {
ID() string
Namespace() string
Stats(context.Context) (*types.Any, error)
}
// Trigger will be called when an event happens and provides the cgroup
// where the event originated from
type Trigger func(string, string, cgroups.Cgroup)
// newCollector registers the collector with the provided namespace and returns it so
// NewCollector registers the collector with the provided namespace and returns it so
// that cgroups can be added for collection
func newCollector(ns *metrics.Namespace) *collector {
func NewCollector(ns *metrics.Namespace) *Collector {
if ns == nil {
return &collector{}
return &Collector{}
}
// add machine cpus and memory info
c := &collector{
c := &Collector{
ns: ns,
tasks: make(map[string]runtime.Task),
tasks: make(map[string]Statable),
}
c.metrics = append(c.metrics, pidMetrics...)
c.metrics = append(c.metrics, cpuMetrics...)
@ -62,24 +69,26 @@ func taskID(id, namespace string) string {
return fmt.Sprintf("%s-%s", id, namespace)
}
// collector provides the ability to collect container stats and export
// Collector provides the ability to collect container stats and export
// them in the prometheus format
type collector struct {
type Collector struct {
mu sync.RWMutex
tasks map[string]runtime.Task
tasks map[string]Statable
ns *metrics.Namespace
metrics []*metric
storedMetrics chan prometheus.Metric
}
func (c *collector) Describe(ch chan<- *prometheus.Desc) {
// Describe prometheus metrics
func (c *Collector) Describe(ch chan<- *prometheus.Desc) {
for _, m := range c.metrics {
ch <- m.desc(c.ns)
}
}
func (c *collector) Collect(ch chan<- prometheus.Metric) {
// Collect prometheus metrics
func (c *Collector) Collect(ch chan<- prometheus.Metric) {
c.mu.RLock()
wg := &sync.WaitGroup{}
for _, t := range c.tasks {
@ -100,7 +109,7 @@ storedLoop:
wg.Wait()
}
func (c *collector) collect(t runtime.Task, ch chan<- prometheus.Metric, block bool, wg *sync.WaitGroup) {
func (c *Collector) collect(t Statable, ch chan<- prometheus.Metric, block bool, wg *sync.WaitGroup) {
if wg != nil {
defer wg.Done()
}
@ -126,7 +135,7 @@ func (c *collector) collect(t runtime.Task, ch chan<- prometheus.Metric, block b
}
// Add adds the provided cgroup and id so that metrics are collected and exported
func (c *collector) Add(t runtime.Task) error {
func (c *Collector) Add(t Statable) error {
if c.ns == nil {
return nil
}
@ -141,11 +150,21 @@ func (c *collector) Add(t runtime.Task) error {
}
// Remove removes the provided cgroup by id from the collector
func (c *collector) Remove(t runtime.Task) {
func (c *Collector) Remove(t Statable) {
if c.ns == nil {
return
}
c.mu.Lock()
defer c.mu.Unlock()
delete(c.tasks, taskID(t.ID(), t.Namespace()))
c.mu.Unlock()
}
// RemoveAll statable items from the collector
func (c *Collector) RemoveAll() {
if c.ns == nil {
return
}
c.mu.Lock()
c.tasks = make(map[string]Statable)
c.mu.Unlock()
}

4
vendor/github.com/containerd/containerd/metrics/cgroups/v2/cgroups.go generated vendored
View File

@ -30,7 +30,7 @@ import (
// NewTaskMonitor returns a new cgroups monitor
func NewTaskMonitor(ctx context.Context, publisher events.Publisher, ns *metrics.Namespace) (runtime.TaskMonitor, error) {
collector := newCollector(ns)
collector := NewCollector(ns)
return &cgroupsMonitor{
collector: collector,
context: ctx,
@ -39,7 +39,7 @@ func NewTaskMonitor(ctx context.Context, publisher events.Publisher, ns *metrics
}
type cgroupsMonitor struct {
collector *collector
collector *Collector
context context.Context
publisher events.Publisher
}

5
vendor/github.com/containerd/containerd/metrics/cgroups/v2/metric.go generated vendored
View File

@ -24,6 +24,9 @@ import (
"github.com/prometheus/client_golang/prometheus"
)
// IDName is the name that is used to identify the id being collected in the metric
var IDName = "container_id"
type value struct {
v float64
l []string
@ -41,7 +44,7 @@ type metric struct {
func (m *metric) desc(ns *metrics.Namespace) *prometheus.Desc {
// the namespace label is for containerd namespaces
return ns.NewDesc(m.name, m.help, m.unit, append([]string{"container_id", "namespace"}, m.labels...)...)
return ns.NewDesc(m.name, m.help, m.unit, append([]string{IDName, "namespace"}, m.labels...)...)
}
func (m *metric) collect(id, namespace string, stats *v2.Metrics, ns *metrics.Namespace, ch chan<- prometheus.Metric, block bool) {

47
vendor/github.com/containerd/containerd/metrics/cgroups/v2/metrics.go generated vendored
View File

@ -26,21 +26,28 @@ import (
"github.com/containerd/containerd/log"
v2 "github.com/containerd/containerd/metrics/types/v2"
"github.com/containerd/containerd/namespaces"
"github.com/containerd/containerd/runtime"
"github.com/containerd/typeurl"
metrics "github.com/docker/go-metrics"
"github.com/gogo/protobuf/types"
"github.com/prometheus/client_golang/prometheus"
)
// newCollector registers the collector with the provided namespace and returns it so
// Statable type that returns cgroup metrics
type Statable interface {
ID() string
Namespace() string
Stats(context.Context) (*types.Any, error)
}
// NewCollector registers the collector with the provided namespace and returns it so
// that cgroups can be added for collection
func newCollector(ns *metrics.Namespace) *collector {
func NewCollector(ns *metrics.Namespace) *Collector {
if ns == nil {
return &collector{}
return &Collector{}
}
c := &collector{
c := &Collector{
ns: ns,
tasks: make(map[string]runtime.Task),
tasks: make(map[string]Statable),
}
c.metrics = append(c.metrics, pidMetrics...)
c.metrics = append(c.metrics, cpuMetrics...)
@ -55,24 +62,26 @@ func taskID(id, namespace string) string {
return fmt.Sprintf("%s-%s", id, namespace)
}
// collector provides the ability to collect container stats and export
// Collector provides the ability to collect container stats and export
// them in the prometheus format
type collector struct {
type Collector struct {
mu sync.RWMutex
tasks map[string]runtime.Task
tasks map[string]Statable
ns *metrics.Namespace
metrics []*metric
storedMetrics chan prometheus.Metric
}
func (c *collector) Describe(ch chan<- *prometheus.Desc) {
// Describe prometheus metrics
func (c *Collector) Describe(ch chan<- *prometheus.Desc) {
for _, m := range c.metrics {
ch <- m.desc(c.ns)
}
}
func (c *collector) Collect(ch chan<- prometheus.Metric) {
// Collect prometheus metrics
func (c *Collector) Collect(ch chan<- prometheus.Metric) {
c.mu.RLock()
wg := &sync.WaitGroup{}
for _, t := range c.tasks {
@ -93,7 +102,7 @@ storedLoop:
wg.Wait()
}
func (c *collector) collect(t runtime.Task, ch chan<- prometheus.Metric, block bool, wg *sync.WaitGroup) {
func (c *Collector) collect(t Statable, ch chan<- prometheus.Metric, block bool, wg *sync.WaitGroup) {
if wg != nil {
defer wg.Done()
}
@ -119,7 +128,7 @@ func (c *collector) collect(t runtime.Task, ch chan<- prometheus.Metric, block b
}
// Add adds the provided cgroup and id so that metrics are collected and exported
func (c *collector) Add(t runtime.Task) error {
func (c *Collector) Add(t Statable) error {
if c.ns == nil {
return nil
}
@ -134,7 +143,7 @@ func (c *collector) Add(t runtime.Task) error {
}
// Remove removes the provided cgroup by id from the collector
func (c *collector) Remove(t runtime.Task) {
func (c *Collector) Remove(t Statable) {
if c.ns == nil {
return
}
@ -142,3 +151,13 @@ func (c *collector) Remove(t runtime.Task) {
defer c.mu.Unlock()
delete(c.tasks, taskID(t.ID(), t.Namespace()))
}
// RemoveAll statable items from the collector
func (c *Collector) RemoveAll() {
if c.ns == nil {
return
}
c.mu.Lock()
c.tasks = make(map[string]Statable)
c.mu.Unlock()
}

8
vendor/github.com/containerd/containerd/mount/mountinfo_linux.go generated vendored
View File

@ -45,10 +45,6 @@ func parseInfoFile(r io.Reader) ([]Info, error) {
out := []Info{}
var err error
for s.Scan() {
if err = s.Err(); err != nil {
return nil, err
}
/*
See http://man7.org/linux/man-pages/man5/proc.5.html
@ -128,6 +124,10 @@ func parseInfoFile(r io.Reader) ([]Info, error) {
out = append(out, p)
}
if err = s.Err(); err != nil {
return nil, err
}
return out, nil
}

6
vendor/github.com/containerd/containerd/oci/spec_opts.go generated vendored
View File

@ -1238,11 +1238,11 @@ func WithEnvFile(path string) SpecOpts {
sc := bufio.NewScanner(f)
for sc.Scan() {
if sc.Err() != nil {
return sc.Err()
}
vars = append(vars, sc.Text())
}
if err = sc.Err(); err != nil {
return err
}
return WithEnv(vars)(nil, nil, nil, s)
}
}

190
vendor/github.com/containerd/containerd/pkg/process/io.go generated vendored
View File

@ -29,15 +29,20 @@ import (
"sync"
"sync/atomic"
"syscall"
"time"
"github.com/containerd/containerd/log"
"github.com/containerd/containerd/namespaces"
"github.com/containerd/containerd/pkg/stdio"
"github.com/containerd/containerd/sys"
"github.com/containerd/fifo"
runc "github.com/containerd/go-runc"
"github.com/hashicorp/go-multierror"
"github.com/pkg/errors"
)
const binaryIOProcTermTimeout = 12 * time.Second // Give logger process solid 10 seconds for cleanup
var bufPool = sync.Pool{
New: func() interface{} {
// setting to 4096 to align with PIPE_BUF
@ -174,7 +179,7 @@ func copyPipes(ctx context.Context, rio runc.IO, stdin, stdout, stderr string, w
},
},
} {
ok, err := isFifo(i.name)
ok, err := sys.IsFifo(i.name)
if err != nil {
return err
}
@ -240,28 +245,13 @@ func (c *countingWriteCloser) Close() error {
return c.WriteCloser.Close()
}
// isFifo checks if a file is a fifo
// if the file does not exist then it returns false
func isFifo(path string) (bool, error) {
stat, err := os.Stat(path)
if err != nil {
if os.IsNotExist(err) {
return false, nil
}
return false, err
}
if stat.Mode()&os.ModeNamedPipe == os.ModeNamedPipe {
return true, nil
}
return false, nil
}
// NewBinaryIO runs a custom binary process for pluggable shim logging
func NewBinaryIO(ctx context.Context, id string, uri *url.URL) (runc.IO, error) {
func NewBinaryIO(ctx context.Context, id string, uri *url.URL) (_ runc.IO, err error) {
ns, err := namespaces.NamespaceRequired(ctx)
if err != nil {
return nil, err
}
var args []string
for k, vs := range uri.Query() {
args = append(args, k)
@ -269,86 +259,146 @@ func NewBinaryIO(ctx context.Context, id string, uri *url.URL) (runc.IO, error)
args = append(args, vs[0])
}
}
ctx, cancel := context.WithCancel(ctx)
cmd := exec.CommandContext(ctx, uri.Path, args...)
var closers []func() error
defer func() {
if err == nil {
return
}
result := multierror.Append(err)
for _, fn := range closers {
result = multierror.Append(result, fn())
}
err = multierror.Flatten(result)
}()
out, err := newPipe()
if err != nil {
return nil, errors.Wrap(err, "failed to create stdout pipes")
}
closers = append(closers, out.Close)
serr, err := newPipe()
if err != nil {
return nil, errors.Wrap(err, "failed to create stderr pipes")
}
closers = append(closers, serr.Close)
r, w, err := os.Pipe()
if err != nil {
return nil, err
}
closers = append(closers, r.Close, w.Close)
cmd := exec.Command(uri.Path, args...)
cmd.Env = append(cmd.Env,
"CONTAINER_ID="+id,
"CONTAINER_NAMESPACE="+ns,
)
out, err := newPipe()
if err != nil {
cancel()
return nil, err
}
serr, err := newPipe()
if err != nil {
cancel()
return nil, err
}
r, w, err := os.Pipe()
if err != nil {
cancel()
return nil, err
}
cmd.ExtraFiles = append(cmd.ExtraFiles, out.r, serr.r, w)
// don't need to register this with the reaper or wait when
// running inside a shim
if err := cmd.Start(); err != nil {
cancel()
return nil, err
return nil, errors.Wrap(err, "failed to start binary process")
}
closers = append(closers, func() error { return cmd.Process.Kill() })
// close our side of the pipe after start
if err := w.Close(); err != nil {
cancel()
return nil, err
return nil, errors.Wrap(err, "failed to close write pipe after start")
}
// wait for the logging binary to be ready
b := make([]byte, 1)
if _, err := r.Read(b); err != nil && err != io.EOF {
cancel()
return nil, err
return nil, errors.Wrap(err, "failed to read from logging binary")
}
return &binaryIO{
cmd: cmd,
cancel: cancel,
out: out,
err: serr,
cmd: cmd,
out: out,
err: serr,
}, nil
}
type binaryIO struct {
cmd *exec.Cmd
cancel func()
out, err *pipe
}
func (b *binaryIO) CloseAfterStart() (err error) {
for _, v := range []*pipe{
b.out,
b.err,
} {
func (b *binaryIO) CloseAfterStart() error {
var (
result *multierror.Error
)
for _, v := range []*pipe{b.out, b.err} {
if v != nil {
if cerr := v.r.Close(); err == nil {
err = cerr
if err := v.r.Close(); err != nil {
result = multierror.Append(result, err)
}
}
}
return err
return result.ErrorOrNil()
}
func (b *binaryIO) Close() (err error) {
b.cancel()
for _, v := range []*pipe{
b.out,
b.err,
} {
func (b *binaryIO) Close() error {
var (
result *multierror.Error
)
for _, v := range []*pipe{b.out, b.err} {
if v != nil {
if cerr := v.Close(); err == nil {
err = cerr
if err := v.Close(); err != nil {
result = multierror.Append(result, err)
}
}
}
return err
if err := b.cancel(); err != nil {
result = multierror.Append(result, err)
}
return result.ErrorOrNil()
}
func (b *binaryIO) cancel() error {
if b.cmd == nil || b.cmd.Process == nil {
return nil
}
// Send SIGTERM first, so logger process has a chance to flush and exit properly
if err := b.cmd.Process.Signal(syscall.SIGTERM); err != nil {
result := multierror.Append(errors.Wrap(err, "failed to send SIGTERM"))
log.L.WithError(err).Warn("failed to send SIGTERM signal, killing logging shim")
if err := b.cmd.Process.Kill(); err != nil {
result = multierror.Append(result, errors.Wrap(err, "failed to kill process after faulty SIGTERM"))
}
return result.ErrorOrNil()
}
done := make(chan error)
go func() {
done <- b.cmd.Wait()
}()
select {
case err := <-done:
return err
case <-time.After(binaryIOProcTermTimeout):
log.L.Warn("failed to wait for shim logger process to exit, killing")
err := b.cmd.Process.Kill()
if err != nil {
return errors.Wrap(err, "failed to kill shim logger process")
}
return nil
}
}
func (b *binaryIO) Stdin() io.WriteCloser {
@ -389,9 +439,15 @@ type pipe struct {
}
func (p *pipe) Close() error {
err := p.w.Close()
if rerr := p.r.Close(); err == nil {
err = rerr
var result *multierror.Error
if err := p.w.Close(); err != nil {
result = multierror.Append(result, errors.Wrap(err, "failed to close write pipe"))
}
return err
if err := p.r.Close(); err != nil {
result = multierror.Append(result, errors.Wrap(err, "failed to close read pipe"))
}
return multierror.Prefix(result.ErrorOrNil(), "pipe:")
}

37
vendor/github.com/containerd/containerd/pkg/ttrpcutil/client.go generated vendored
View File

@ -50,14 +50,8 @@ func NewClient(address string, opts ...ttrpc.ClientOpts) (*Client, error) {
return client, nil
}
client, err := connector()
if err != nil {
return nil, err
}
return &Client{
connector: connector,
client: client,
}, nil
}
@ -74,6 +68,12 @@ func (c *Client) Reconnect() error {
return errors.New("client is closed")
}
if c.client != nil {
if err := c.client.Close(); err != nil {
return err
}
}
client, err := c.connector()
if err != nil {
return err
@ -84,16 +84,26 @@ func (c *Client) Reconnect() error {
}
// EventsService creates an EventsService client
func (c *Client) EventsService() v1.EventsService {
return v1.NewEventsClient(c.Client())
func (c *Client) EventsService() (v1.EventsService, error) {
client, err := c.Client()
if err != nil {
return nil, err
}
return v1.NewEventsClient(client), nil
}
// Client returns the underlying TTRPC client object
func (c *Client) Client() *ttrpc.Client {
func (c *Client) Client() (*ttrpc.Client, error) {
c.mu.Lock()
defer c.mu.Unlock()
return c.client
if c.client == nil {
client, err := c.connector()
if err != nil {
return nil, err
}
c.client = client
}
return c.client, nil
}
// Close closes the clients TTRPC connection to containerd
@ -102,5 +112,8 @@ func (c *Client) Close() error {
defer c.mu.Unlock()
c.closed = true
return c.client.Close()
if c.client != nil {
return c.client.Close()
}
return nil
}

2
vendor/github.com/containerd/containerd/pull.go generated vendored
View File

@ -72,7 +72,7 @@ func (c *Client) Pull(ctx context.Context, ref string, opts ...RemoteOpt) (_ Ima
if err != nil {
return nil, errors.Wrap(err, "create unpacker")
}
unpackWrapper, unpackEg = u.handlerWrapper(ctx, &unpacks)
unpackWrapper, unpackEg = u.handlerWrapper(ctx, pullCtx, &unpacks)
defer func() {
if err := unpackEg.Wait(); err != nil {
if retErr == nil {

2
vendor/github.com/containerd/containerd/rootfs/apply.go generated vendored
View File

@ -129,7 +129,7 @@ func applyLayers(ctx context.Context, layers []Layer, chain []digest.Digest, sn
mounts, err = sn.Prepare(ctx, key, parent.String(), opts...)
if err != nil {
if errdefs.IsNotFound(err) && len(layers) > 1 {
if err := applyLayers(ctx, layers[:len(layers)-1], chain[:len(chain)-1], sn, a, nil, applyOpts); err != nil {
if err := applyLayers(ctx, layers[:len(layers)-1], chain[:len(chain)-1], sn, a, opts, applyOpts); err != nil {
if !errdefs.IsAlreadyExists(err) {
return err
}

57
vendor/github.com/containerd/containerd/runtime/v1/shim/service.go generated vendored
View File

@ -503,42 +503,37 @@ func (s *Service) processExits() {
}
}
func (s *Service) allProcesses() []process.Process {
s.mu.Lock()
defer s.mu.Unlock()
res := make([]process.Process, 0, len(s.processes))
for _, p := range s.processes {
res = append(res, p)
}
return res
}
func (s *Service) checkProcesses(e runc.Exit) {
for _, p := range s.allProcesses() {
if p.Pid() != e.Pid {
continue
var p process.Process
s.mu.Lock()
for _, proc := range s.processes {
if proc.Pid() == e.Pid {
p = proc
break
}
if ip, ok := p.(*process.Init); ok {
// Ensure all children are killed
if shouldKillAllOnExit(s.context, s.bundle) {
if err := ip.KillAll(s.context); err != nil {
log.G(s.context).WithError(err).WithField("id", ip.ID()).
Error("failed to kill init's children")
}
}
s.mu.Unlock()
if p == nil {
log.G(s.context).Infof("process with id:%d wasn't found", e.Pid)
return
}
if ip, ok := p.(*process.Init); ok {
// Ensure all children are killed
if shouldKillAllOnExit(s.context, s.bundle) {
if err := ip.KillAll(s.context); err != nil {
log.G(s.context).WithError(err).WithField("id", ip.ID()).
Error("failed to kill init's children")
}
}
}
p.SetExited(e.Status)
s.events <- &eventstypes.TaskExit{
ContainerID: s.id,
ID: p.ID(),
Pid: uint32(e.Pid),
ExitStatus: uint32(e.Status),
ExitedAt: p.ExitedAt(),
}
return
p.SetExited(e.Status)
s.events <- &eventstypes.TaskExit{
ContainerID: s.id,
ID: p.ID(),
Pid: uint32(e.Pid),
ExitStatus: uint32(e.Status),
ExitedAt: p.ExitedAt(),
}
}

3
vendor/github.com/containerd/containerd/runtime/v2/README.md generated vendored
View File

@ -227,9 +227,6 @@ func copy(wg *sync.WaitGroup, r io.Reader, pri journal.Priority, vars map[string
defer wg.Done()
s := bufio.NewScanner(r)
for s.Scan() {
if s.Err() != nil {
return
}
journal.Send(s.Text(), pri, vars)
}
}

9
vendor/github.com/containerd/containerd/runtime/v2/shim.go generated vendored
View File

@ -226,9 +226,12 @@ func (s *shim) Delete(ctx context.Context) (*runtime.Exit, error) {
ID: s.ID(),
})
if shimErr != nil {
shimErr = errdefs.FromGRPC(shimErr)
if !errdefs.IsNotFound(shimErr) {
return nil, shimErr
log.G(ctx).WithField("id", s.ID()).WithError(shimErr).Debug("failed to delete task")
if errors.Cause(shimErr) != ttrpc.ErrClosed {
shimErr = errdefs.FromGRPC(shimErr)
if !errdefs.IsNotFound(shimErr) {
return nil, shimErr
}
}
}
// remove self from the runtime task list

15
vendor/github.com/containerd/containerd/runtime/v2/shim/publisher.go generated vendored
View File

@ -128,9 +128,12 @@ func (l *RemoteEventsPublisher) Publish(ctx context.Context, topic string, event
}
func (l *RemoteEventsPublisher) forwardRequest(ctx context.Context, req *v1.ForwardRequest) error {
_, err := l.client.EventsService().Forward(ctx, req)
service, err := l.client.EventsService()
if err == nil {
return nil
_, err = service.Forward(ctx, req)
if err == nil {
return nil
}
}
if err != ttrpc.ErrClosed {
@ -138,11 +141,15 @@ func (l *RemoteEventsPublisher) forwardRequest(ctx context.Context, req *v1.Forw
}
// Reconnect and retry request
if err := l.client.Reconnect(); err != nil {
if err = l.client.Reconnect(); err != nil {
return err
}
if _, err := l.client.EventsService().Forward(ctx, req); err != nil {
service, err = l.client.EventsService()
if err != nil {
return err
}
if _, err = service.Forward(ctx, req); err != nil {
return err
}

12
vendor/github.com/containerd/containerd/runtime/v2/shim/shim.go generated vendored
View File

@ -31,6 +31,7 @@ import (
"github.com/containerd/containerd/log"
"github.com/containerd/containerd/namespaces"
shimapi "github.com/containerd/containerd/runtime/v2/task"
"github.com/containerd/containerd/version"
"github.com/containerd/ttrpc"
"github.com/gogo/protobuf/proto"
"github.com/pkg/errors"
@ -84,6 +85,7 @@ type Config struct {
var (
debugFlag bool
versionFlag bool
idFlag string
namespaceFlag string
socketFlag string
@ -99,6 +101,7 @@ const (
func parseFlags() {
flag.BoolVar(&debugFlag, "debug", false, "enable debug output in logs")
flag.BoolVar(&versionFlag, "v", false, "show the shim version and exit")
flag.StringVar(&namespaceFlag, "namespace", "", "namespace that owns the shim")
flag.StringVar(&idFlag, "id", "", "id of the task")
flag.StringVar(&socketFlag, "socket", "", "abstract socket path to serve")
@ -155,6 +158,15 @@ func Run(id string, initFunc Init, opts ...BinaryOpts) {
func run(id string, initFunc Init, config Config) error {
parseFlags()
if versionFlag {
fmt.Printf("%s:\n", os.Args[0])
fmt.Println(" Version: ", version.Version)
fmt.Println(" Revision:", version.Revision)
fmt.Println(" Go version:", version.GoVersion)
fmt.Println("")
return nil
}
setRuntime()
signals, err := setupSignals(config)

4
vendor/github.com/containerd/containerd/runtime/v2/shim/shim_linux.go generated vendored
View File

@ -17,7 +17,7 @@
package shim
import (
"github.com/containerd/containerd/sys"
"github.com/containerd/containerd/sys/reaper"
"github.com/containerd/ttrpc"
)
@ -26,5 +26,5 @@ func newServer() (*ttrpc.Server, error) {
}
func subreaper() error {
return sys.SetSubreaper(1)
return reaper.SetSubreaper(1)
}

6
vendor/github.com/containerd/containerd/signals_unix.go generated vendored
View File

@ -33,11 +33,7 @@ import (
func ParseSignal(rawSignal string) (syscall.Signal, error) {
s, err := strconv.Atoi(rawSignal)
if err == nil {
signal := syscall.Signal(s)
if unix.SignalName(signal) != "" {
return signal, nil
}
return -1, fmt.Errorf("unknown signal %q", rawSignal)
return syscall.Signal(s), nil
}
signal := unix.SignalNum(strings.ToUpper(rawSignal))
if signal == 0 {

11
vendor/github.com/containerd/containerd/snapshots/snapshotter.go generated vendored
View File

@ -355,10 +355,17 @@ type Cleaner interface {
// Opt allows setting mutable snapshot properties on creation
type Opt func(info *Info) error
// WithLabels adds labels to a created snapshot
// WithLabels appends labels to a created snapshot
func WithLabels(labels map[string]string) Opt {
return func(info *Info) error {
info.Labels = labels
if info.Labels == nil {
info.Labels = make(map[string]string)
}
for k, v := range labels {
info.Labels[k] = v
}
return nil
}
}

21
vendor/github.com/containerd/containerd/sys/epoll.go generated vendored
View File

@ -20,17 +20,14 @@ package sys
import "golang.org/x/sys/unix"
// EpollCreate1 directly calls unix.EpollCreate1
func EpollCreate1(flag int) (int, error) {
return unix.EpollCreate1(flag)
}
// EpollCreate1 is an alias for unix.EpollCreate1
// Deprecated: use golang.org/x/sys/unix.EpollCreate1
var EpollCreate1 = unix.EpollCreate1
// EpollCtl directly calls unix.EpollCtl
func EpollCtl(epfd int, op int, fd int, event *unix.EpollEvent) error {
return unix.EpollCtl(epfd, op, fd, event)
}
// EpollCtl is an alias for unix.EpollCtl
// Deprecated: use golang.org/x/sys/unix.EpollCtl
var EpollCtl = unix.EpollCtl
// EpollWait directly calls unix.EpollWait
func EpollWait(epfd int, events []unix.EpollEvent, msec int) (int, error) {
return unix.EpollWait(epfd, events, msec)
}
// EpollWait is an alias for unix.EpollWait
// Deprecated: use golang.org/x/sys/unix.EpollWait
var EpollWait = unix.EpollWait

35
vendor/github.com/containerd/containerd/sys/filesys.go generated vendored Normal file
View File

@ -0,0 +1,35 @@
/*
Copyright The containerd Authors.
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
*/
package sys
import "os"
// IsFifo checks if a file is a (named pipe) fifo
// if the file does not exist then it returns false
func IsFifo(path string) (bool, error) {
stat, err := os.Stat(path)
if err != nil {
if os.IsNotExist(err) {
return false, nil
}
return false, err
}
if stat.Mode()&os.ModeNamedPipe == os.ModeNamedPipe {
return true, nil
}
return false, nil
}

89
vendor/github.com/containerd/containerd/sys/filesys_windows.go generated vendored
View File

@ -26,8 +26,8 @@ import (
"syscall"
"unsafe"
winio "github.com/Microsoft/go-winio"
"github.com/Microsoft/hcsshim"
"golang.org/x/sys/windows"
)
const (
@ -41,7 +41,8 @@ func MkdirAllWithACL(path string, perm os.FileMode) error {
return mkdirall(path, true)
}
// MkdirAll implementation that is volume path aware for Windows.
// MkdirAll implementation that is volume path aware for Windows. It can be used
// as a drop-in replacement for os.MkdirAll()
func MkdirAll(path string, _ os.FileMode) error {
return mkdirall(path, false)
}
@ -111,26 +112,26 @@ func mkdirall(path string, adminAndLocalSystem bool) error {
// mkdirWithACL creates a new directory. If there is an error, it will be of
// type *PathError. .
//
// This is a modified and combined version of os.Mkdir and syscall.Mkdir
// This is a modified and combined version of os.Mkdir and windows.Mkdir
// in golang to cater for creating a directory am ACL permitting full
// access, with inheritance, to any subfolder/file for Built-in Administrators
// and Local System.
func mkdirWithACL(name string) error {
sa := syscall.SecurityAttributes{Length: 0}
sd, err := winio.SddlToSecurityDescriptor(SddlAdministratorsLocalSystem)
sa := windows.SecurityAttributes{Length: 0}
sd, err := windows.SecurityDescriptorFromString(SddlAdministratorsLocalSystem)
if err != nil {
return &os.PathError{Op: "mkdir", Path: name, Err: err}
}
sa.Length = uint32(unsafe.Sizeof(sa))
sa.InheritHandle = 1
sa.SecurityDescriptor = uintptr(unsafe.Pointer(&sd[0]))
sa.SecurityDescriptor = sd
namep, err := syscall.UTF16PtrFromString(name)
namep, err := windows.UTF16PtrFromString(name)
if err != nil {
return &os.PathError{Op: "mkdir", Path: name, Err: err}
}
e := syscall.CreateDirectory(namep, &sa)
e := windows.CreateDirectory(namep, &sa)
if e != nil {
return &os.PathError{Op: "mkdir", Path: name, Err: e}
}
@ -153,7 +154,7 @@ func IsAbs(path string) bool {
return true
}
// The origin of the functions below here are the golang OS and syscall packages,
// The origin of the functions below here are the golang OS and windows packages,
// slightly modified to only cope with files, not directories due to the
// specific use case.
//
@ -185,74 +186,74 @@ func OpenFileSequential(name string, flag int, _ os.FileMode) (*os.File, error)
if name == "" {
return nil, &os.PathError{Op: "open", Path: name, Err: syscall.ENOENT}
}
r, errf := syscallOpenFileSequential(name, flag, 0)
r, errf := windowsOpenFileSequential(name, flag, 0)
if errf == nil {
return r, nil
}
return nil, &os.PathError{Op: "open", Path: name, Err: errf}
}
func syscallOpenFileSequential(name string, flag int, _ os.FileMode) (file *os.File, err error) {
r, e := syscallOpenSequential(name, flag|syscall.O_CLOEXEC, 0)
func windowsOpenFileSequential(name string, flag int, _ os.FileMode) (file *os.File, err error) {
r, e := windowsOpenSequential(name, flag|windows.O_CLOEXEC, 0)
if e != nil {
return nil, e
}
return os.NewFile(uintptr(r), name), nil
}
func makeInheritSa() *syscall.SecurityAttributes {
var sa syscall.SecurityAttributes
func makeInheritSa() *windows.SecurityAttributes {
var sa windows.SecurityAttributes
sa.Length = uint32(unsafe.Sizeof(sa))
sa.InheritHandle = 1
return &sa
}
func syscallOpenSequential(path string, mode int, _ uint32) (fd syscall.Handle, err error) {
func windowsOpenSequential(path string, mode int, _ uint32) (fd windows.Handle, err error) {
if len(path) == 0 {
return syscall.InvalidHandle, syscall.ERROR_FILE_NOT_FOUND
return windows.InvalidHandle, windows.ERROR_FILE_NOT_FOUND
}
pathp, err := syscall.UTF16PtrFromString(path)
pathp, err := windows.UTF16PtrFromString(path)
if err != nil {
return syscall.InvalidHandle, err
return windows.InvalidHandle, err
}
var access uint32
switch mode & (syscall.O_RDONLY | syscall.O_WRONLY | syscall.O_RDWR) {
case syscall.O_RDONLY:
access = syscall.GENERIC_READ
case syscall.O_WRONLY:
access = syscall.GENERIC_WRITE
case syscall.O_RDWR:
access = syscall.GENERIC_READ | syscall.GENERIC_WRITE
switch mode & (windows.O_RDONLY | windows.O_WRONLY | windows.O_RDWR) {
case windows.O_RDONLY:
access = windows.GENERIC_READ
case windows.O_WRONLY:
access = windows.GENERIC_WRITE
case windows.O_RDWR:
access = windows.GENERIC_READ | windows.GENERIC_WRITE
}
if mode&syscall.O_CREAT != 0 {
access |= syscall.GENERIC_WRITE
if mode&windows.O_CREAT != 0 {
access |= windows.GENERIC_WRITE
}
if mode&syscall.O_APPEND != 0 {
access &^= syscall.GENERIC_WRITE
access |= syscall.FILE_APPEND_DATA
if mode&windows.O_APPEND != 0 {
access &^= windows.GENERIC_WRITE
access |= windows.FILE_APPEND_DATA
}
sharemode := uint32(syscall.FILE_SHARE_READ | syscall.FILE_SHARE_WRITE)
var sa *syscall.SecurityAttributes
if mode&syscall.O_CLOEXEC == 0 {
sharemode := uint32(windows.FILE_SHARE_READ | windows.FILE_SHARE_WRITE)
var sa *windows.SecurityAttributes
if mode&windows.O_CLOEXEC == 0 {
sa = makeInheritSa()
}
var createmode uint32
switch {
case mode&(syscall.O_CREAT|syscall.O_EXCL) == (syscall.O_CREAT | syscall.O_EXCL):
createmode = syscall.CREATE_NEW
case mode&(syscall.O_CREAT|syscall.O_TRUNC) == (syscall.O_CREAT | syscall.O_TRUNC):
createmode = syscall.CREATE_ALWAYS
case mode&syscall.O_CREAT == syscall.O_CREAT:
createmode = syscall.OPEN_ALWAYS
case mode&syscall.O_TRUNC == syscall.O_TRUNC:
createmode = syscall.TRUNCATE_EXISTING
case mode&(windows.O_CREAT|windows.O_EXCL) == (windows.O_CREAT | windows.O_EXCL):
createmode = windows.CREATE_NEW
case mode&(windows.O_CREAT|windows.O_TRUNC) == (windows.O_CREAT | windows.O_TRUNC):
createmode = windows.CREATE_ALWAYS
case mode&windows.O_CREAT == windows.O_CREAT:
createmode = windows.OPEN_ALWAYS
case mode&windows.O_TRUNC == windows.O_TRUNC:
createmode = windows.TRUNCATE_EXISTING
default:
createmode = syscall.OPEN_EXISTING
createmode = windows.OPEN_EXISTING
}
// Use FILE_FLAG_SEQUENTIAL_SCAN rather than FILE_ATTRIBUTE_NORMAL as implemented in golang.
//https://msdn.microsoft.com/en-us/library/windows/desktop/aa363858(v=vs.85).aspx
// https://msdn.microsoft.com/en-us/library/windows/desktop/aa363858(v=vs.85).aspx
const fileFlagSequentialScan = 0x08000000 // FILE_FLAG_SEQUENTIAL_SCAN
h, e := syscall.CreateFile(pathp, access, sharemode, sa, createmode, fileFlagSequentialScan, 0)
h, e := windows.CreateFile(pathp, access, sharemode, sa, createmode, fileFlagSequentialScan, 0)
return h, e
}

52
vendor/github.com/containerd/containerd/sys/mount_linux.go generated vendored
View File

@ -21,6 +21,7 @@ import (
"syscall"
"unsafe"
"github.com/containerd/containerd/log"
"github.com/pkg/errors"
"golang.org/x/sys/unix"
)
@ -30,9 +31,8 @@ func FMountat(dirfd uintptr, source, target, fstype string, flags uintptr, data
var (
sourceP, targetP, fstypeP, dataP *byte
pid uintptr
ws unix.WaitStatus
err error
errno syscall.Errno
errno, status syscall.Errno
)
sourceP, err = syscall.BytePtrFromString(source)
@ -60,37 +60,62 @@ func FMountat(dirfd uintptr, source, target, fstype string, flags uintptr, data
runtime.LockOSThread()
defer runtime.UnlockOSThread()
var pipefds [2]int
if err := syscall.Pipe2(pipefds[:], syscall.O_CLOEXEC); err != nil {
return errors.Wrap(err, "failed to open pipe")
}
defer func() {
// close both ends of the pipe in a deferred function, since open file
// descriptor table is shared with child
syscall.Close(pipefds[0])
syscall.Close(pipefds[1])
}()
pid, errno = forkAndMountat(dirfd,
uintptr(unsafe.Pointer(sourceP)),
uintptr(unsafe.Pointer(targetP)),
uintptr(unsafe.Pointer(fstypeP)),
flags,
uintptr(unsafe.Pointer(dataP)))
uintptr(unsafe.Pointer(dataP)),
pipefds[1],
)
if errno != 0 {
return errors.Wrap(errno, "failed to fork thread")
}
_, err = unix.Wait4(int(pid), &ws, 0, nil)
for err == syscall.EINTR {
_, err = unix.Wait4(int(pid), &ws, 0, nil)
}
defer func() {
_, err := unix.Wait4(int(pid), nil, 0, nil)
for err == syscall.EINTR {
_, err = unix.Wait4(int(pid), nil, 0, nil)
}
if err != nil {
return errors.Wrapf(err, "failed to find pid=%d process", pid)
}
if err != nil {
log.L.WithError(err).Debugf("failed to find pid=%d process", pid)
}
}()
errno = syscall.Errno(ws.ExitStatus())
_, _, errno = syscall.RawSyscall(syscall.SYS_READ,
uintptr(pipefds[0]),
uintptr(unsafe.Pointer(&status)),
unsafe.Sizeof(status))
if errno != 0 {
return errors.Wrap(errno, "failed to mount")
return errors.Wrap(errno, "failed to read pipe")
}
if status != 0 {
return errors.Wrap(status, "failed to mount")
}
return nil
}
// forkAndMountat will fork thread, change working dir and mount.
//
// precondition: the runtime OS thread must be locked.
func forkAndMountat(dirfd uintptr, source, target, fstype, flags, data uintptr) (pid uintptr, errno syscall.Errno) {
func forkAndMountat(dirfd uintptr, source, target, fstype, flags, data uintptr, pipefd int) (pid uintptr, errno syscall.Errno) {
// block signal during clone
beforeFork()
@ -114,6 +139,7 @@ func forkAndMountat(dirfd uintptr, source, target, fstype, flags, data uintptr)
_, _, errno = syscall.RawSyscall6(syscall.SYS_MOUNT, source, target, fstype, flags, data, 0)
childerr:
_, _, errno = syscall.RawSyscall(syscall.SYS_WRITE, uintptr(pipefd), uintptr(unsafe.Pointer(&errno)), unsafe.Sizeof(errno))
syscall.RawSyscall(syscall.SYS_EXIT, uintptr(errno), 0, 0)
panic("unreachable")
}

4
vendor/github.com/containerd/containerd/sys/oom_unix.go generated vendored
View File

@ -24,8 +24,6 @@ import (
"os"
"strconv"
"strings"
"github.com/opencontainers/runc/libcontainer/system"
)
// OOMScoreMaxKillable is the maximum score keeping the process killable by the oom killer
@ -40,7 +38,7 @@ func SetOOMScore(pid, score int) error {
}
defer f.Close()
if _, err = f.WriteString(strconv.Itoa(score)); err != nil {
if os.IsPermission(err) && (system.RunningInUserNS() || RunningUnprivileged()) {
if os.IsPermission(err) && (RunningInUserNS() || RunningUnprivileged()) {
return nil
}
return err

80
vendor/github.com/containerd/containerd/sys/proc.go generated vendored
View File

@ -1,80 +0,0 @@
// +build linux
/*
Copyright The containerd Authors.
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
*/
package sys
import (
"bufio"
"fmt"
"os"
"strconv"
"strings"
"github.com/opencontainers/runc/libcontainer/system"
)
const nanoSecondsPerSecond = 1e9
var clockTicksPerSecond = uint64(system.GetClockTicks())
// GetSystemCPUUsage returns the host system's cpu usage in
// nanoseconds. An error is returned if the format of the underlying
// file does not match.
//
// Uses /proc/stat defined by POSIX. Looks for the cpu
// statistics line and then sums up the first seven fields
// provided. See `man 5 proc` for details on specific field
// information.
func GetSystemCPUUsage() (uint64, error) {
var line string
f, err := os.Open("/proc/stat")
if err != nil {
return 0, err
}
bufReader := bufio.NewReaderSize(nil, 128)
defer func() {
bufReader.Reset(nil)
f.Close()
}()
bufReader.Reset(f)
err = nil
for err == nil {
line, err = bufReader.ReadString('\n')
if err != nil {
break
}
parts := strings.Fields(line)
switch parts[0] {
case "cpu":
if len(parts) < 8 {
return 0, fmt.Errorf("bad format of cpu stats")
}
var totalClockTicks uint64
for _, i := range parts[1:8] {
v, err := strconv.ParseUint(i, 10, 64)
if err != nil {
return 0, fmt.Errorf("error parsing cpu stats")
}
totalClockTicks += v
}
return (totalClockTicks * nanoSecondsPerSecond) /
clockTicksPerSecond, nil
}
}
return 0, fmt.Errorf("bad stats format")
}

69
vendor/github.com/containerd/containerd/sys/reaper.go generated vendored
View File

@ -1,69 +0,0 @@
// +build !windows
/*
Copyright The containerd Authors.
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
*/
package sys
import (
"golang.org/x/sys/unix"
)
// Exit is the wait4 information from an exited process
type Exit struct {
Pid int
Status int
}
// Reap reaps all child processes for the calling process and returns their
// exit information
func Reap(wait bool) (exits []Exit, err error) {
var (
ws unix.WaitStatus
rus unix.Rusage
)
flag := unix.WNOHANG
if wait {
flag = 0
}
for {
pid, err := unix.Wait4(-1, &ws, flag, &rus)
if err != nil {
if err == unix.ECHILD {
return exits, nil
}
return exits, err
}
if pid <= 0 {
return exits, nil
}
exits = append(exits, Exit{
Pid: pid,
Status: exitStatus(ws),
})
}
}
const exitSignalOffset = 128
// exitStatus returns the correct exit status for a process based on if it
// was signaled or exited cleanly
func exitStatus(status unix.WaitStatus) int {
if status.Signaled() {
return exitSignalOffset + int(status.Signal())
}
return status.ExitStatus()
}

50
vendor/github.com/containerd/containerd/sys/reaper/reaper_unix.go generated vendored
View File

@ -23,9 +23,9 @@ import (
"sync"
"time"
"github.com/containerd/containerd/sys"
runc "github.com/containerd/go-runc"
"github.com/pkg/errors"
"golang.org/x/sys/unix"
)
// ErrNoSuchProcess is returned when the process no longer exists
@ -60,7 +60,7 @@ func (s *subscriber) do(fn func()) {
// all exited processes and close their wait channels
func Reap() error {
now := time.Now()
exits, err := sys.Reap(false)
exits, err := reap(false)
for _, e := range exits {
done := Default.notify(runc.Exit{
Timestamp: now,
@ -200,3 +200,49 @@ func stop(timer *time.Timer, recv bool) {
<-timer.C
}
}
// exit is the wait4 information from an exited process
type exit struct {
Pid int
Status int
}
// reap reaps all child processes for the calling process and returns their
// exit information
func reap(wait bool) (exits []exit, err error) {
var (
ws unix.WaitStatus
rus unix.Rusage
)
flag := unix.WNOHANG
if wait {
flag = 0
}
for {
pid, err := unix.Wait4(-1, &ws, flag, &rus)
if err != nil {
if err == unix.ECHILD {
return exits, nil
}
return exits, err
}
if pid <= 0 {
return exits, nil
}
exits = append(exits, exit{
Pid: pid,
Status: exitStatus(ws),
})
}
}
const exitSignalOffset = 128
// exitStatus returns the correct exit status for a process based on if it
// was signaled or exited cleanly
func exitStatus(status unix.WaitStatus) int {
if status.Signaled() {
return exitSignalOffset + int(status.Signal())
}
return status.ExitStatus()
}

17
vendor/github.com/containerd/containerd/sys/reaper_linux.go → vendor/github.com/containerd/containerd/sys/reaper/reaper_utils_linux.go generated vendored
View File

@ -14,7 +14,7 @@
limitations under the License.
*/
package sys
package reaper
import (
"unsafe"
@ -22,22 +22,9 @@ import (
"golang.org/x/sys/unix"
)
// If arg2 is nonzero, set the "child subreaper" attribute of the
// calling process; if arg2 is zero, unset the attribute. When a
// process is marked as a child subreaper, all of the children
// that it creates, and their descendants, will be marked as
// having a subreaper. In effect, a subreaper fulfills the role
// of init(1) for its descendant processes. Upon termination of
// a process that is orphaned (i.e., its immediate parent has
// already terminated) and marked as having a subreaper, the
// nearest still living ancestor subreaper will receive a SIGCHLD
// signal and be able to wait(2) on the process to discover its
// termination status.
const setChildSubreaper = 36
// SetSubreaper sets the value i as the subreaper setting for the calling process
func SetSubreaper(i int) error {
return unix.Prctl(setChildSubreaper, uintptr(i), 0, 0, 0)
return unix.Prctl(unix.PR_SET_CHILD_SUBREAPER, uintptr(i), 0, 0, 0)
}
// GetSubreaper returns the subreaper setting for the calling process

62
vendor/github.com/containerd/containerd/sys/userns_linux.go generated vendored Normal file
View File

@ -0,0 +1,62 @@
/*
Copyright The containerd Authors.
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
*/
package sys
import (
"bufio"
"fmt"
"os"
"sync"
)
var (
inUserNS bool
nsOnce sync.Once
)
// RunningInUserNS detects whether we are currently running in a user namespace.
// Originally copied from github.com/lxc/lxd/shared/util.go
func RunningInUserNS() bool {
nsOnce.Do(func() {
file, err := os.Open("/proc/self/uid_map")
if err != nil {
// This kernel-provided file only exists if user namespaces are supported
return
}
defer file.Close()
buf := bufio.NewReader(file)
l, _, err := buf.ReadLine()
if err != nil {
return
}
line := string(l)
var a, b, c int64
fmt.Sscanf(line, "%d %d %d", &a, &b, &c)
/*
* We assume we are in the initial user namespace if we have a full
* range - 4294967295 uids starting at uid 0.
*/
if a == 0 && b == 0 && c == 4294967295 {
return
}
inUserNS = true
})
return inUserNS
}

25
vendor/github.com/containerd/containerd/sys/userns_unsupported.go generated vendored Normal file
View File

@ -0,0 +1,25 @@
// +build !linux
/*
Copyright The containerd Authors.
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
*/
package sys
// RunningInUserNS is a stub for non-Linux systems
// Always returns false
func RunningInUserNS() bool {
return false
}

22
vendor/github.com/containerd/containerd/unpacker.go generated vendored
View File

@ -72,7 +72,13 @@ func (c *Client) newUnpacker(ctx context.Context, rCtx *RemoteContext) (*unpacke
}, nil
}
func (u *unpacker) unpack(ctx context.Context, h images.Handler, config ocispec.Descriptor, layers []ocispec.Descriptor) error {
func (u *unpacker) unpack(
ctx context.Context,
rCtx *RemoteContext,
h images.Handler,
config ocispec.Descriptor,
layers []ocispec.Descriptor,
) error {
p, err := content.ReadBlob(ctx, u.c.ContentStore(), config)
if err != nil {
return err
@ -123,17 +129,17 @@ EachLayer:
labels = make(map[string]string)
}
labels[labelSnapshotRef] = chainID
labelOpt := snapshots.WithLabels(labels)
var (
key string
mounts []mount.Mount
opts = append(rCtx.SnapshotterOpts, snapshots.WithLabels(labels))
)
for try := 1; try <= 3; try++ {
// Prepare snapshot with from parent, label as root
key = fmt.Sprintf("extract-%s %s", uniquePart(), chainID)
mounts, err = sn.Prepare(ctx, key, parent.String(), labelOpt)
mounts, err = sn.Prepare(ctx, key, parent.String(), opts...)
if err != nil {
if errdefs.IsAlreadyExists(err) {
if _, err := sn.Stat(ctx, chainID); err != nil {
@ -201,7 +207,7 @@ EachLayer:
return errors.Errorf("wrong diff id calculated on extraction %q", diffIDs[i])
}
if err = sn.Commit(ctx, chainID, key, labelOpt); err != nil {
if err = sn.Commit(ctx, chainID, key, opts...); err != nil {
abort()
if errdefs.IsAlreadyExists(err) {
continue
@ -271,7 +277,11 @@ func (u *unpacker) fetch(ctx context.Context, h images.Handler, layers []ocispec
return eg.Wait()
}
func (u *unpacker) handlerWrapper(uctx context.Context, unpacks *int32) (func(images.Handler) images.Handler, *errgroup.Group) {
func (u *unpacker) handlerWrapper(
uctx context.Context,
rCtx *RemoteContext,
unpacks *int32,
) (func(images.Handler) images.Handler, *errgroup.Group) {
eg, uctx := errgroup.WithContext(uctx)
return func(f images.Handler) images.Handler {
var (
@ -313,7 +323,7 @@ func (u *unpacker) handlerWrapper(uctx context.Context, unpacks *int32) (func(im
if len(l) > 0 {
atomic.AddInt32(unpacks, 1)
eg.Go(func() error {
return u.unpack(uctx, f, desc, l)
return u.unpack(uctx, rCtx, f, desc, l)
})
}
}

70
vendor/github.com/containerd/containerd/vendor.conf generated vendored
View File

@ -2,16 +2,16 @@ github.com/beorn7/perks 37c8de3658fcb183f997c4e13e83
github.com/BurntSushi/toml 3012a1dbe2e4bd1391d42b32f0577cb7bbc7f005 # v0.3.1
github.com/cespare/xxhash/v2 d7df74196a9e781ede915320c11c378c1b2f3a1f # v2.1.1
github.com/containerd/btrfs 153935315f4ab9be5bf03650a1341454b05efa5d
github.com/containerd/cgroups 7347743e5d1e8500d9f27c8e748e689ed991d92b
github.com/containerd/console 8375c3424e4d7b114e8a90a4a40c8e1b40d1d4e6
github.com/containerd/cgroups b4448137398923af7f4918b8b2ad8249172ca7a6
github.com/containerd/console 8375c3424e4d7b114e8a90a4a40c8e1b40d1d4e6 # v1.0.0
github.com/containerd/continuity 0ec596719c75bfd42908850990acea594b7593ac
github.com/containerd/fifo bda0ff6ed73c67bfb5e62bc9c697f146b7fd7f13
github.com/containerd/go-runc a5c2862aed5e6358b305b0e16bfce58e0549b1cd
github.com/containerd/ttrpc 92c8520ef9f86600c650dd540266a007bf03670f
github.com/containerd/typeurl a93fcdb778cd272c6e9b3028b2f42d813e785d40
github.com/containerd/ttrpc 72bb1b21c5b0a4a107f59dd85f6ab58e564b68d6 # v1.0.1
github.com/containerd/typeurl cd3ce7159eae562a4f60ceff37dada11a939d247 # v1.0.1
github.com/coreos/go-systemd/v22 2d78030078ef61b3cae27f42ad6d0e46db51b339 # v22.0.0
github.com/cpuguy83/go-md2man 7762f7e404f8416dfa1d9bb6a8c192aa9acb4d19 # v1.0.10
github.com/docker/go-events 9461782956ad83b30282bf90e31fa6a70c255ba9
github.com/docker/go-events e31b211e4f1cd09aa76fe4ac244571fab96ae47f
github.com/docker/go-metrics b619b3592b65de4f087d9f16863a7e6ff905973c # v0.0.1
github.com/docker/go-units 519db1ee28dcc9fd2474ae59fca29a810482bfb1 # v0.4.0
github.com/godbus/dbus/v5 37bf87eef99d69c4f1d3528bd66e3a87dc201472 # v5.0.3
@ -25,65 +25,78 @@ github.com/hashicorp/errwrap 8a6fb523712970c966eefc6b39ed
github.com/hashicorp/go-multierror 886a7fbe3eb1c874d46f623bfa70af45f425b3d1 # v1.0.0
github.com/hashicorp/golang-lru 7f827b33c0f158ec5dfbba01bb0b14a4541fd81d # v0.5.3
github.com/imdario/mergo 7c29201646fa3de8506f701213473dd407f19646 # v0.3.7
github.com/konsorten/go-windows-terminal-sequences 5c8c8bd35d3832f5d134ae1e1e375b69a4d25242 # v1.0.1
github.com/konsorten/go-windows-terminal-sequences edb144dfd453055e1e49a3d8b410a660b5a87613 # v1.0.3
github.com/matttproud/golang_protobuf_extensions c12348ce28de40eed0136aa2b644d0ee0650e56c # v1.0.1
github.com/Microsoft/go-winio 6c72808b55902eae4c5943626030429ff20f3b63 # v0.4.14
github.com/Microsoft/hcsshim 0b571ac85d7c5842b26d2571de4868634a4c39d7 # v0.8.7-24-g0b571ac8
github.com/Microsoft/hcsshim 5bc557dd210ff2caf615e6e22d398123de77fc11 # v0.8.9
github.com/opencontainers/go-digest c9281466c8b2f606084ac71339773efd177436e7
github.com/opencontainers/image-spec d60099175f88c47cd379c4738d158884749ed235 # v1.0.1
github.com/opencontainers/runc dc9208a3303feef5b3839f4323d9beb36df0a9dd # v1.0.0-rc10
github.com/opencontainers/runtime-spec 29686dbc5559d93fb1ef402eeda3e35c38d75af4 # v1.0.1-59-g29686db
github.com/pkg/errors ba968bfe8b2f7e042a574c888954fccecfa385b4 # v0.8.1
github.com/opencontainers/runtime-spec c4ee7d12c742ffe806cd9350b6af3b4b19faed6f # v1.0.2
github.com/pkg/errors 614d223910a179a466c1767a985424175c39b465 # v0.9.1
github.com/prometheus/client_golang c42bebe5a5cddfc6b28cd639103369d8a75dfa89 # v1.3.0
github.com/prometheus/client_model d1d2010b5beead3fa1c5f271a5cf626e40b3ad6e # v0.1.0
github.com/prometheus/common 287d3e634a1e550c9e463dd7e5a75a422c614505 # v0.7.0
github.com/prometheus/procfs 6d489fc7f1d9cd890a250f3ea3431b1744b9623f # v0.0.8
github.com/russross/blackfriday 05f3235734ad95d0016f6a23902f06461fcf567a # v1.5.2
github.com/sirupsen/logrus 8bdbc7bcc01dcbb8ec23dc8a28e332258d25251f # v1.4.1
github.com/sirupsen/logrus 60c74ad9be0d874af0ab0daef6ab07c5c5911f0d # v1.6.0
github.com/syndtr/gocapability d98352740cb2c55f81556b63d4a1ec64c5a319c2
github.com/urfave/cli bfe2e925cfb6d44b40ad3a779165ea7e8aff9212 # v1.22.0
go.etcd.io/bbolt a0458a2b35708eef59eb5f620ceb3cd1c01a824d # v1.3.3
go.opencensus.io 9c377598961b706d1542bd2d84d538b5094d596e # v0.22.0
golang.org/x/net f3200d17e092c607f615320ecaad13d87ad9a2b3
golang.org/x/sync 42b317875d0fa942474b76e1b46a6060d720ae6e
golang.org/x/sys c990c680b611ac1aeb7d8f2af94a825f98d69720 https://github.com/golang/sys
golang.org/x/sys 5c8b2ff67527cb88b770f693cebf3799036d8bc0
golang.org/x/text 19e51611da83d6be54ddafce4a4af510cb3e9ea4
google.golang.org/genproto e50cd9704f63023d62cd06a1994b98227fc4d21a
google.golang.org/grpc f495f5b15ae7ccda3b38c53a1bfcde4c1a58a2bc # v1.27.1
gotest.tools/v3 bb0d8a963040ea5048dcef1a14d8f8b58a33d4b3 # v3.0.2
# cgroups dependencies
github.com/cilium/ebpf 4032b1d8aae306b7bb94a2a11002932caf88c644
# cri dependencies
github.com/containerd/cri c0294ebfe0b4342db85c0faf7727ceb8d8c3afce # master
github.com/containerd/go-cni 0d360c50b10b350b6bb23863fd4dfb1c232b01c9
github.com/containernetworking/cni 4cfb7b568922a3c79a23e438dc52fe537fc9687e # v0.7.1
github.com/containernetworking/plugins 9f96827c7cabb03f21d86326000c00f61e181f6a # v0.7.6
github.com/containerd/cri 65830369b6b2b4edc454bf5cebbd9b76c1c1ac66 # master
github.com/davecgh/go-spew 8991bc29aa16c548c550c7ff78260e27b9ab7c73 # v1.1.1
github.com/docker/distribution 0d3efadf0154c2b8a4e7b6621fff9809655cc580
github.com/docker/docker d1d5f6476656c6aad457e2a91d3436e66b6f2251
github.com/docker/docker 4634ce647cf2ce2c6031129ccd109e557244986f
github.com/docker/spdystream 449fdfce4d962303d702fec724ef0ad181c92528
github.com/emicklei/go-restful b993709ae1a4f6dd19cfa475232614441b11c9d5 # v2.9.5
github.com/google/gofuzz f140a6486e521aad38f5917de355cbf147cc0496 # v1.0.0
github.com/google/gofuzz db92cf7ae75e4a7a28abc005addab2b394362888 # v1.1.0
github.com/json-iterator/go 03217c3e97663914aec3faafde50d081f197a0a2 # v1.1.8
github.com/modern-go/concurrent bacd9c7ef1dd9b15be4a9909b8ac7a4e313eec94 # 1.0.3
github.com/modern-go/reflect2 4b7aa43c6742a2c18fdef89dd197aaae7dac7ccd # 1.0.1
github.com/opencontainers/selinux 31f70552238c5e017d78c3f1ba65e85f593f48e0 # 1.3.3
github.com/opencontainers/selinux 0d49ba2a6aae052c614dfe5de62a158711a6c461 # 1.5.1
github.com/seccomp/libseccomp-golang 689e3c1541a84461afc49c1c87352a6cedf72e9c # v0.9.1
github.com/stretchr/testify 221dbe5ed46703ee255b1da0dec05086f5035f62 # v1.4.0
github.com/tchap/go-patricia 666120de432aea38ab06bd5c818f04f4129882c9 # v2.2.6
golang.org/x/crypto 1d94cc7ab1c630336ab82ccb9c9cda72a875c382
golang.org/x/crypto bac4c82f69751a6dd76e702d54b3ceb88adab236
golang.org/x/oauth2 0f29369cfe4552d0e4bcddc57cc75f4d7e672a33
golang.org/x/time 9d24e82272b4f38b78bc8cff74fa936d31ccd8ef
gopkg.in/inf.v0 d2d2541c53f18d2a059457998ce2876cc8e67cbf # v0.9.1
gopkg.in/yaml.v2 53403b58ad1b561927d19068c655246f2db79d48 # v2.2.8
k8s.io/api 7643814f1c97f24ccfb38c2b85a7bb3c7f494346 # kubernetes-1.17.1
k8s.io/apimachinery 79c2a76c473a20cdc4ce59cae4b72529b5d9d16b # kubernetes-1.17.1
k8s.io/apiserver 5381f05fcb881d39af12eeecab5645364229300c # kubernetes-1.17.1
k8s.io/client-go 69012f50f4b0243bccdb82c24402a10224a91f51 # kubernetes-1.17.1
k8s.io/cri-api 775aa3c1cf7380ba8b7362f5a52f1e6d2e130bb9 # kubernetes-1.17.1
k8s.io/api d2dce8e1788e4be2be3a62b6439b3eaa087df0df # v0.18.0
k8s.io/apimachinery 105e0c6d63f10531ed07f3b5a2195771a0fa444b # v0.18.0
k8s.io/apiserver 5c8e895629a454efd75a453d1dea5b8142db0013 # v0.18.0
k8s.io/client-go 0b19784585bd0a0ee5509855829ead81feaa2bdc # v0.18.0
k8s.io/cri-api 3d1680d8d202aa12c5dc5689170c3c03a488d35b # v0.18.0
k8s.io/klog 2ca9ad30301bf30a8a6e0fa2110db6b8df699a91 # v1.0.0
k8s.io/kubernetes d224476cd0730baca2b6e357d144171ed74192d6 # v1.17.1
k8s.io/utils e782cd3c129fc98ee807f3c889c0f26eb7c9daf5
sigs.k8s.io/yaml fd68e9863619f6ec2fdd8625fe1f02e7c877e480 # v1.1.0
k8s.io/kubernetes 9e991415386e4cf155a24b1da15becaa390438d8 # v1.18.0
k8s.io/utils a9aa75ae1b89e1b992c33383f48e942d97e52dae
sigs.k8s.io/structured-merge-diff/v3 877aee05330847a873a1a8998b40e12a1e0fde25 # v3.0.0
sigs.k8s.io/yaml 9fc95527decd95bb9d28cc2eab08179b2d0f6971 # v1.2.0
# cni dependencies
github.com/containerd/go-cni 0d360c50b10b350b6bb23863fd4dfb1c232b01c9
github.com/containernetworking/cni 4cfb7b568922a3c79a23e438dc52fe537fc9687e # v0.7.1
github.com/containernetworking/plugins 9f96827c7cabb03f21d86326000c00f61e181f6a # v0.7.6
github.com/fsnotify/fsnotify 4bf2d1fec78374803a39307bfb8d340688f4f28e # v1.4.8
# image decrypt depedencies
github.com/containerd/imgcrypt 9e761ccd6069fb707ec9493435f31475b5524b38 # v1.0.1
github.com/containers/ocicrypt 0343cc6053fd65069df55bce6838096e09b4033a # v1.0.1 from containerd/imgcrypt
github.com/fullsailor/pkcs7 8306686428a5fe132eac8cb7c4848af725098bd4 # from containers/ocicrypt
gopkg.in/square/go-jose.v2 730df5f748271903322feb182be83b43ebbbe27d # v2.3.1 from containers/ocicrypt
# zfs dependencies
github.com/containerd/zfs 9abf673ca6ff9ab8d9bd776a4ceff8f6dc699c3d
@ -91,6 +104,3 @@ github.com/mistifyio/go-zfs f784269be439d704d3dfa1906f45
# aufs dependencies
github.com/containerd/aufs 371312c1e31c210a21e49bf3dfd3f31729ed9f2f
# cgroups dependencies
github.com/cilium/ebpf 60c3aa43f488292fe2ee50fb8b833b383ca8ebbb

84
vendor/github.com/coreos/go-systemd/v22/daemon/sdnotify.go generated vendored Normal file
View File

@ -0,0 +1,84 @@
// Copyright 2014 Docker, Inc.
// Copyright 2015-2018 CoreOS, Inc.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
//
// Package daemon provides a Go implementation of the sd_notify protocol.
// It can be used to inform systemd of service start-up completion, watchdog
// events, and other status changes.
//
// https://www.freedesktop.org/software/systemd/man/sd_notify.html#Description
package daemon
import (
"net"
"os"
)
const (
// SdNotifyReady tells the service manager that service startup is finished
// or the service finished loading its configuration.
SdNotifyReady = "READY=1"
// SdNotifyStopping tells the service manager that the service is beginning
// its shutdown.
SdNotifyStopping = "STOPPING=1"
// SdNotifyReloading tells the service manager that this service is
// reloading its configuration. Note that you must call SdNotifyReady when
// it completed reloading.
SdNotifyReloading = "RELOADING=1"
// SdNotifyWatchdog tells the service manager to update the watchdog
// timestamp for the service.
SdNotifyWatchdog = "WATCHDOG=1"
)
// SdNotify sends a message to the init daemon. It is common to ignore the error.
// If `unsetEnvironment` is true, the environment variable `NOTIFY_SOCKET`
// will be unconditionally unset.
//
// It returns one of the following:
// (false, nil) - notification not supported (i.e. NOTIFY_SOCKET is unset)
// (false, err) - notification supported, but failure happened (e.g. error connecting to NOTIFY_SOCKET or while sending data)
// (true, nil) - notification supported, data has been sent
func SdNotify(unsetEnvironment bool, state string) (bool, error) {
socketAddr := &net.UnixAddr{
Name: os.Getenv("NOTIFY_SOCKET"),
Net: "unixgram",
}
// NOTIFY_SOCKET not set
if socketAddr.Name == "" {
return false, nil
}
if unsetEnvironment {
if err := os.Unsetenv("NOTIFY_SOCKET"); err != nil {
return false, err
}
}
conn, err := net.DialUnix(socketAddr.Net, nil, socketAddr)
// Error connecting to NOTIFY_SOCKET
if err != nil {
return false, err
}
defer conn.Close()
if _, err = conn.Write([]byte(state)); err != nil {
return false, err
}
return true, nil
}

73
vendor/github.com/coreos/go-systemd/v22/daemon/watchdog.go generated vendored Normal file
View File

@ -0,0 +1,73 @@
// Copyright 2016 CoreOS, Inc.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package daemon
import (
"fmt"
"os"
"strconv"
"time"
)
// SdWatchdogEnabled returns watchdog information for a service.
// Processes should call daemon.SdNotify(false, daemon.SdNotifyWatchdog) every
// time / 2.
// If `unsetEnvironment` is true, the environment variables `WATCHDOG_USEC` and
// `WATCHDOG_PID` will be unconditionally unset.
//
// It returns one of the following:
// (0, nil) - watchdog isn't enabled or we aren't the watched PID.
// (0, err) - an error happened (e.g. error converting time).
// (time, nil) - watchdog is enabled and we can send ping.
// time is delay before inactive service will be killed.
func SdWatchdogEnabled(unsetEnvironment bool) (time.Duration, error) {
wusec := os.Getenv("WATCHDOG_USEC")
wpid := os.Getenv("WATCHDOG_PID")
if unsetEnvironment {
wusecErr := os.Unsetenv("WATCHDOG_USEC")
wpidErr := os.Unsetenv("WATCHDOG_PID")
if wusecErr != nil {
return 0, wusecErr
}
if wpidErr != nil {
return 0, wpidErr
}
}
if wusec == "" {
return 0, nil
}
s, err := strconv.Atoi(wusec)
if err != nil {
return 0, fmt.Errorf("error converting WATCHDOG_USEC: %s", err)
}
if s <= 0 {
return 0, fmt.Errorf("error WATCHDOG_USEC must be a positive number")
}
interval := time.Duration(s) * time.Microsecond
if wpid == "" {
return interval, nil
}
p, err := strconv.Atoi(wpid)
if err != nil {
return 0, fmt.Errorf("error converting WATCHDOG_PID: %s", err)
}
if os.Getpid() != p {
return 0, nil
}
return interval, nil
}

354
vendor/github.com/hashicorp/errwrap/LICENSE generated vendored Normal file
View File

@ -0,0 +1,354 @@
Mozilla Public License, version 2.0
1. Definitions
1.1. “Contributor”
means each individual or legal entity that creates, contributes to the
creation of, or owns Covered Software.
1.2. “Contributor Version”
means the combination of the Contributions of others (if any) used by a
Contributor and that particular Contributor’s Contribution.
1.3. “Contribution”
means Covered Software of a particular Contributor.
1.4. “Covered Software”
means Source Code Form to which the initial Contributor has attached the
notice in Exhibit A, the Executable Form of such Source Code Form, and
Modifications of such Source Code Form, in each case including portions
thereof.
1.5. “Incompatible With Secondary Licenses”
means
a. that the initial Contributor has attached the notice described in
Exhibit B to the Covered Software; or
b. that the Covered Software was made available under the terms of version
1.1 or earlier of the License, but not also under the terms of a
Secondary License.
1.6. “Executable Form”
means any form of the work other than Source Code Form.
1.7. “Larger Work”
means a work that combines Covered Software with other material, in a separate
file or files, that is not Covered Software.
1.8. “License”
means this document.
1.9. “Licensable”
means having the right to grant, to the maximum extent possible, whether at the
time of the initial grant or subsequently, any and all of the rights conveyed by
this License.
1.10. “Modifications”
means any of the following:
a. any file in Source Code Form that results from an addition to, deletion
from, or modification of the contents of Covered Software; or
b. any new file in Source Code Form that contains any Covered Software.
1.11. “Patent Claims” of a Contributor
means any patent claim(s), including without limitation, method, process,
and apparatus claims, in any patent Licensable by such Contributor that
would be infringed, but for the grant of the License, by the making,
using, selling, offering for sale, having made, import, or transfer of
either its Contributions or its Contributor Version.
1.12. “Secondary License”
means either the GNU General Public License, Version 2.0, the GNU Lesser
General Public License, Version 2.1, the GNU Affero General Public
License, Version 3.0, or any later versions of those licenses.
1.13. “Source Code Form”
means the form of the work preferred for making modifications.
1.14. “You” (or “Your”)
means an individual or a legal entity exercising rights under this
License. For legal entities, “You” includes any entity that controls, is
controlled by, or is under common control with You. For purposes of this
definition, “control” means (a) the power, direct or indirect, to cause
the direction or management of such entity, whether by contract or
otherwise, or (b) ownership of more than fifty percent (50%) of the
outstanding shares or beneficial ownership of such entity.
2. License Grants and Conditions
2.1. Grants
Each Contributor hereby grants You a world-wide, royalty-free,
non-exclusive license:
a. under intellectual property rights (other than patent or trademark)
Licensable by such Contributor to use, reproduce, make available,
modify, display, perform, distribute, and otherwise exploit its
Contributions, either on an unmodified basis, with Modifications, or as
part of a Larger Work; and
b. under Patent Claims of such Contributor to make, use, sell, offer for
sale, have made, import, and otherwise transfer either its Contributions
or its Contributor Version.
2.2. Effective Date
The licenses granted in Section 2.1 with respect to any Contribution become
effective for each Contribution on the date the Contributor first distributes
such Contribution.
2.3. Limitations on Grant Scope
The licenses granted in this Section 2 are the only rights granted under this
License. No additional rights or licenses will be implied from the distribution
or licensing of Covered Software under this License. Notwithstanding Section
2.1(b) above, no patent license is granted by a Contributor:
a. for any code that a Contributor has removed from Covered Software; or
b. for infringements caused by: (i) Your and any other third party’s
modifications of Covered Software, or (ii) the combination of its
Contributions with other software (except as part of its Contributor
Version); or
c. under Patent Claims infringed by Covered Software in the absence of its
Contributions.
This License does not grant any rights in the trademarks, service marks, or
logos of any Contributor (except as may be necessary to comply with the
notice requirements in Section 3.4).
2.4. Subsequent Licenses
No Contributor makes additional grants as a result of Your choice to
distribute the Covered Software under a subsequent version of this License
(see Section 10.2) or under the terms of a Secondary License (if permitted
under the terms of Section 3.3).
2.5. Representation
Each Contributor represents that the Contributor believes its Contributions
are its original creation(s) or it has sufficient rights to grant the
rights to its Contributions conveyed by this License.
2.6. Fair Use
This License is not intended to limit any rights You have under applicable
copyright doctrines of fair use, fair dealing, or other equivalents.
2.7. Conditions
Sections 3.1, 3.2, 3.3, and 3.4 are conditions of the licenses granted in
Section 2.1.
3. Responsibilities
3.1. Distribution of Source Form
All distribution of Covered Software in Source Code Form, including any
Modifications that You create or to which You contribute, must be under the
terms of this License. You must inform recipients that the Source Code Form
of the Covered Software is governed by the terms of this License, and how
they can obtain a copy of this License. You may not attempt to alter or
restrict the recipients’ rights in the Source Code Form.
3.2. Distribution of Executable Form
If You distribute Covered Software in Executable Form then:
a. such Covered Software must also be made available in Source Code Form,
as described in Section 3.1, and You must inform recipients of the
Executable Form how they can obtain a copy of such Source Code Form by
reasonable means in a timely manner, at a charge no more than the cost
of distribution to the recipient; and
b. You may distribute such Executable Form under the terms of this License,
or sublicense it under different terms, provided that the license for
the Executable Form does not attempt to limit or alter the recipients’
rights in the Source Code Form under this License.
3.3. Distribution of a Larger Work
You may create and distribute a Larger Work under terms of Your choice,
provided that You also comply with the requirements of this License for the
Covered Software. If the Larger Work is a combination of Covered Software
with a work governed by one or more Secondary Licenses, and the Covered
Software is not Incompatible With Secondary Licenses, this License permits
You to additionally distribute such Covered Software under the terms of
such Secondary License(s), so that the recipient of the Larger Work may, at
their option, further distribute the Covered Software under the terms of
either this License or such Secondary License(s).
3.4. Notices
You may not remove or alter the substance of any license notices (including
copyright notices, patent notices, disclaimers of warranty, or limitations
of liability) contained within the Source Code Form of the Covered
Software, except that You may alter any license notices to the extent
required to remedy known factual inaccuracies.
3.5. Application of Additional Terms
You may choose to offer, and to charge a fee for, warranty, support,
indemnity or liability obligations to one or more recipients of Covered
Software. However, You may do so only on Your own behalf, and not on behalf
of any Contributor. You must make it absolutely clear that any such
warranty, support, indemnity, or liability obligation is offered by You
alone, and You hereby agree to indemnify every Contributor for any
liability incurred by such Contributor as a result of warranty, support,
indemnity or liability terms You offer. You may include additional
disclaimers of warranty and limitations of liability specific to any
jurisdiction.
4. Inability to Comply Due to Statute or Regulation
If it is impossible for You to comply with any of the terms of this License
with respect to some or all of the Covered Software due to statute, judicial
order, or regulation then You must: (a) comply with the terms of this License
to the maximum extent possible; and (b) describe the limitations and the code
they affect. Such description must be placed in a text file included with all
distributions of the Covered Software under this License. Except to the
extent prohibited by statute or regulation, such description must be
sufficiently detailed for a recipient of ordinary skill to be able to
understand it.
5. Termination
5.1. The rights granted under this License will terminate automatically if You
fail to comply with any of its terms. However, if You become compliant,
then the rights granted under this License from a particular Contributor
are reinstated (a) provisionally, unless and until such Contributor
explicitly and finally terminates Your grants, and (b) on an ongoing basis,
if such Contributor fails to notify You of the non-compliance by some
reasonable means prior to 60 days after You have come back into compliance.
Moreover, Your grants from a particular Contributor are reinstated on an
ongoing basis if such Contributor notifies You of the non-compliance by
some reasonable means, this is the first time You have received notice of
non-compliance with this License from such Contributor, and You become
compliant prior to 30 days after Your receipt of the notice.
5.2. If You initiate litigation against any entity by asserting a patent
infringement claim (excluding declaratory judgment actions, counter-claims,
and cross-claims) alleging that a Contributor Version directly or
indirectly infringes any patent, then the rights granted to You by any and
all Contributors for the Covered Software under Section 2.1 of this License
shall terminate.
5.3. In the event of termination under Sections 5.1 or 5.2 above, all end user
license agreements (excluding distributors and resellers) which have been
validly granted by You or Your distributors under this License prior to
termination shall survive termination.
6. Disclaimer of Warranty
Covered Software is provided under this License on an “as is” basis, without
warranty of any kind, either expressed, implied, or statutory, including,
without limitation, warranties that the Covered Software is free of defects,
merchantable, fit for a particular purpose or non-infringing. The entire
risk as to the quality and performance of the Covered Software is with You.
Should any Covered Software prove defective in any respect, You (not any
Contributor) assume the cost of any necessary servicing, repair, or
correction. This disclaimer of warranty constitutes an essential part of this
License. No use of any Covered Software is authorized under this License
except under this disclaimer.
7. Limitation of Liability
Under no circumstances and under no legal theory, whether tort (including
negligence), contract, or otherwise, shall any Contributor, or anyone who
distributes Covered Software as permitted above, be liable to You for any
direct, indirect, special, incidental, or consequential damages of any
character including, without limitation, damages for lost profits, loss of
goodwill, work stoppage, computer failure or malfunction, or any and all
other commercial damages or losses, even if such party shall have been
informed of the possibility of such damages. This limitation of liability
shall not apply to liability for death or personal injury resulting from such
party’s negligence to the extent applicable law prohibits such limitation.
Some jurisdictions do not allow the exclusion or limitation of incidental or
consequential damages, so this exclusion and limitation may not apply to You.
8. Litigation
Any litigation relating to this License may be brought only in the courts of
a jurisdiction where the defendant maintains its principal place of business
and such litigation shall be governed by laws of that jurisdiction, without
reference to its conflict-of-law provisions. Nothing in this Section shall
prevent a party’s ability to bring cross-claims or counter-claims.
9. Miscellaneous
This License represents the complete agreement concerning the subject matter
hereof. If any provision of this License is held to be unenforceable, such
provision shall be reformed only to the extent necessary to make it
enforceable. Any law or regulation which provides that the language of a
contract shall be construed against the drafter shall not be used to construe
this License against a Contributor.
10. Versions of the License
10.1. New Versions
Mozilla Foundation is the license steward. Except as provided in Section
10.3, no one other than the license steward has the right to modify or
publish new versions of this License. Each version will be given a
distinguishing version number.
10.2. Effect of New Versions
You may distribute the Covered Software under the terms of the version of
the License under which You originally received the Covered Software, or
under the terms of any subsequent version published by the license
steward.
10.3. Modified Versions
If you create software not governed by this License, and you want to
create a new license for such software, you may create and use a modified
version of this License if you rename the license and remove any
references to the name of the license steward (except to note that such
modified license differs from this License).
10.4. Distributing Source Code Form that is Incompatible With Secondary Licenses
If You choose to distribute Source Code Form that is Incompatible With
Secondary Licenses under the terms of this version of the License, the
notice described in Exhibit B of this License must be attached.
Exhibit A - Source Code Form License Notice
This Source Code Form is subject to the
terms of the Mozilla Public License, v.
2.0. If a copy of the MPL was not
distributed with this file, You can
obtain one at
http://mozilla.org/MPL/2.0/.
If it is not possible or desirable to put the notice in a particular file, then
You may include the notice in a location (such as a LICENSE file in a relevant
directory) where a recipient would be likely to look for such a notice.
You may add additional accurate notices of copyright ownership.
Exhibit B - “Incompatible With Secondary Licenses” Notice
This Source Code Form is “Incompatible
With Secondary Licenses”, as defined by
the Mozilla Public License, v. 2.0.

89
vendor/github.com/hashicorp/errwrap/README.md generated vendored Normal file
View File

@ -0,0 +1,89 @@
# errwrap
`errwrap` is a package for Go that formalizes the pattern of wrapping errors
and checking if an error contains another error.
There is a common pattern in Go of taking a returned `error` value and
then wrapping it (such as with `fmt.Errorf`) before returning it. The problem
with this pattern is that you completely lose the original `error` structure.
Arguably the _correct_ approach is that you should make a custom structure
implementing the `error` interface, and have the original error as a field
on that structure, such [as this example](http://golang.org/pkg/os/#PathError).
This is a good approach, but you have to know the entire chain of possible
rewrapping that happens, when you might just care about one.
`errwrap` formalizes this pattern (it doesn't matter what approach you use
above) by giving a single interface for wrapping errors, checking if a specific
error is wrapped, and extracting that error.
## Installation and Docs
Install using `go get github.com/hashicorp/errwrap`.
Full documentation is available at
http://godoc.org/github.com/hashicorp/errwrap
## Usage
#### Basic Usage
Below is a very basic example of its usage:
```go
// A function that always returns an error, but wraps it, like a real
// function might.
func tryOpen() error {
_, err := os.Open("/i/dont/exist")
if err != nil {
return errwrap.Wrapf("Doesn't exist: {{err}}", err)
}
return nil
}
func main() {
err := tryOpen()
// We can use the Contains helpers to check if an error contains
// another error. It is safe to do this with a nil error, or with
// an error that doesn't even use the errwrap package.
if errwrap.Contains(err, "does not exist") {
// Do something
}
if errwrap.ContainsType(err, new(os.PathError)) {
// Do something
}
// Or we can use the associated `Get` functions to just extract
// a specific error. This would return nil if that specific error doesn't
// exist.
perr := errwrap.GetType(err, new(os.PathError))
}
```
#### Custom Types
If you're already making custom types that properly wrap errors, then
you can get all the functionality of `errwraps.Contains` and such by
implementing the `Wrapper` interface with just one function. Example:
```go
type AppError {
Code ErrorCode
Err error
}
func (e *AppError) WrappedErrors() []error {
return []error{e.Err}
}
```
Now this works:
```go
err := &AppError{Err: fmt.Errorf("an error")}
if errwrap.ContainsType(err, fmt.Errorf("")) {
// This will work!
}
```

169
vendor/github.com/hashicorp/errwrap/errwrap.go generated vendored Normal file
View File

@ -0,0 +1,169 @@
// Package errwrap implements methods to formalize error wrapping in Go.
//
// All of the top-level functions that take an `error` are built to be able
// to take any error, not just wrapped errors. This allows you to use errwrap
// without having to type-check and type-cast everywhere.
package errwrap
import (
"errors"
"reflect"
"strings"
)
// WalkFunc is the callback called for Walk.
type WalkFunc func(error)
// Wrapper is an interface that can be implemented by custom types to
// have all the Contains, Get, etc. functions in errwrap work.
//
// When Walk reaches a Wrapper, it will call the callback for every
// wrapped error in addition to the wrapper itself. Since all the top-level
// functions in errwrap use Walk, this means that all those functions work
// with your custom type.
type Wrapper interface {
WrappedErrors() []error
}
// Wrap defines that outer wraps inner, returning an error type that
// can be cleanly used with the other methods in this package, such as
// Contains, GetAll, etc.
//
// This function won't modify the error message at all (the outer message
// will be used).
func Wrap(outer, inner error) error {
return &wrappedError{
Outer: outer,
Inner: inner,
}
}
// Wrapf wraps an error with a formatting message. This is similar to using
// `fmt.Errorf` to wrap an error. If you're using `fmt.Errorf` to wrap
// errors, you should replace it with this.
//
// format is the format of the error message. The string '{{err}}' will
// be replaced with the original error message.
func Wrapf(format string, err error) error {
outerMsg := "<nil>"
if err != nil {
outerMsg = err.Error()
}
outer := errors.New(strings.Replace(
format, "{{err}}", outerMsg, -1))
return Wrap(outer, err)
}
// Contains checks if the given error contains an error with the
// message msg. If err is not a wrapped error, this will always return
// false unless the error itself happens to match this msg.
func Contains(err error, msg string) bool {
return len(GetAll(err, msg)) > 0
}
// ContainsType checks if the given error contains an error with
// the same concrete type as v. If err is not a wrapped error, this will
// check the err itself.
func ContainsType(err error, v interface{}) bool {
return len(GetAllType(err, v)) > 0
}
// Get is the same as GetAll but returns the deepest matching error.
func Get(err error, msg string) error {
es := GetAll(err, msg)
if len(es) > 0 {
return es[len(es)-1]
}
return nil
}
// GetType is the same as GetAllType but returns the deepest matching error.
func GetType(err error, v interface{}) error {
es := GetAllType(err, v)
if len(es) > 0 {
return es[len(es)-1]
}
return nil
}
// GetAll gets all the errors that might be wrapped in err with the
// given message. The order of the errors is such that the outermost
// matching error (the most recent wrap) is index zero, and so on.
func GetAll(err error, msg string) []error {
var result []error
Walk(err, func(err error) {
if err.Error() == msg {
result = append(result, err)
}
})
return result
}
// GetAllType gets all the errors that are the same type as v.
//
// The order of the return value is the same as described in GetAll.
func GetAllType(err error, v interface{}) []error {
var result []error
var search string
if v != nil {
search = reflect.TypeOf(v).String()
}
Walk(err, func(err error) {
var needle string
if err != nil {
needle = reflect.TypeOf(err).String()
}
if needle == search {
result = append(result, err)
}
})
return result
}
// Walk walks all the wrapped errors in err and calls the callback. If
// err isn't a wrapped error, this will be called once for err. If err
// is a wrapped error, the callback will be called for both the wrapper
// that implements error as well as the wrapped error itself.
func Walk(err error, cb WalkFunc) {
if err == nil {
return
}
switch e := err.(type) {
case *wrappedError:
cb(e.Outer)
Walk(e.Inner, cb)
case Wrapper:
cb(err)
for _, err := range e.WrappedErrors() {
Walk(err, cb)
}
default:
cb(err)
}
}
// wrappedError is an implementation of error that has both the
// outer and inner errors.
type wrappedError struct {
Outer error
Inner error
}
func (w *wrappedError) Error() string {
return w.Outer.Error()
}
func (w *wrappedError) WrappedErrors() []error {
return []error{w.Outer, w.Inner}
}

1
vendor/github.com/hashicorp/errwrap/go.mod generated vendored Normal file
View File

@ -0,0 +1 @@
module github.com/hashicorp/errwrap

353
vendor/github.com/hashicorp/go-multierror/LICENSE generated vendored Normal file
View File

@ -0,0 +1,353 @@
Mozilla Public License, version 2.0
1. Definitions
1.1. “Contributor”
means each individual or legal entity that creates, contributes to the
creation of, or owns Covered Software.
1.2. “Contributor Version”
means the combination of the Contributions of others (if any) used by a
Contributor and that particular Contributor’s Contribution.
1.3. “Contribution”
means Covered Software of a particular Contributor.
1.4. “Covered Software”
means Source Code Form to which the initial Contributor has attached the
notice in Exhibit A, the Executable Form of such Source Code Form, and
Modifications of such Source Code Form, in each case including portions
thereof.
1.5. “Incompatible With Secondary Licenses”
means
a. that the initial Contributor has attached the notice described in
Exhibit B to the Covered Software; or
b. that the Covered Software was made available under the terms of version
1.1 or earlier of the License, but not also under the terms of a
Secondary License.
1.6. “Executable Form”
means any form of the work other than Source Code Form.
1.7. “Larger Work”
means a work that combines Covered Software with other material, in a separate
file or files, that is not Covered Software.
1.8. “License”
means this document.
1.9. “Licensable”
means having the right to grant, to the maximum extent possible, whether at the
time of the initial grant or subsequently, any and all of the rights conveyed by
this License.
1.10. “Modifications”
means any of the following:
a. any file in Source Code Form that results from an addition to, deletion
from, or modification of the contents of Covered Software; or
b. any new file in Source Code Form that contains any Covered Software.
1.11. “Patent Claims” of a Contributor
means any patent claim(s), including without limitation, method, process,
and apparatus claims, in any patent Licensable by such Contributor that
would be infringed, but for the grant of the License, by the making,
using, selling, offering for sale, having made, import, or transfer of
either its Contributions or its Contributor Version.
1.12. “Secondary License”
means either the GNU General Public License, Version 2.0, the GNU Lesser
General Public License, Version 2.1, the GNU Affero General Public
License, Version 3.0, or any later versions of those licenses.
1.13. “Source Code Form”
means the form of the work preferred for making modifications.
1.14. “You” (or “Your”)
means an individual or a legal entity exercising rights under this
License. For legal entities, “You” includes any entity that controls, is
controlled by, or is under common control with You. For purposes of this
definition, “control” means (a) the power, direct or indirect, to cause
the direction or management of such entity, whether by contract or
otherwise, or (b) ownership of more than fifty percent (50%) of the
outstanding shares or beneficial ownership of such entity.
2. License Grants and Conditions
2.1. Grants
Each Contributor hereby grants You a world-wide, royalty-free,
non-exclusive license:
a. under intellectual property rights (other than patent or trademark)
Licensable by such Contributor to use, reproduce, make available,
modify, display, perform, distribute, and otherwise exploit its
Contributions, either on an unmodified basis, with Modifications, or as
part of a Larger Work; and
b. under Patent Claims of such Contributor to make, use, sell, offer for
sale, have made, import, and otherwise transfer either its Contributions
or its Contributor Version.
2.2. Effective Date
The licenses granted in Section 2.1 with respect to any Contribution become
effective for each Contribution on the date the Contributor first distributes
such Contribution.
2.3. Limitations on Grant Scope
The licenses granted in this Section 2 are the only rights granted under this
License. No additional rights or licenses will be implied from the distribution
or licensing of Covered Software under this License. Notwithstanding Section
2.1(b) above, no patent license is granted by a Contributor:
a. for any code that a Contributor has removed from Covered Software; or
b. for infringements caused by: (i) Your and any other third party’s
modifications of Covered Software, or (ii) the combination of its
Contributions with other software (except as part of its Contributor
Version); or
c. under Patent Claims infringed by Covered Software in the absence of its
Contributions.
This License does not grant any rights in the trademarks, service marks, or
logos of any Contributor (except as may be necessary to comply with the
notice requirements in Section 3.4).
2.4. Subsequent Licenses
No Contributor makes additional grants as a result of Your choice to
distribute the Covered Software under a subsequent version of this License
(see Section 10.2) or under the terms of a Secondary License (if permitted
under the terms of Section 3.3).
2.5. Representation
Each Contributor represents that the Contributor believes its Contributions
are its original creation(s) or it has sufficient rights to grant the
rights to its Contributions conveyed by this License.
2.6. Fair Use
This License is not intended to limit any rights You have under applicable
copyright doctrines of fair use, fair dealing, or other equivalents.
2.7. Conditions
Sections 3.1, 3.2, 3.3, and 3.4 are conditions of the licenses granted in
Section 2.1.
3. Responsibilities
3.1. Distribution of Source Form
All distribution of Covered Software in Source Code Form, including any
Modifications that You create or to which You contribute, must be under the
terms of this License. You must inform recipients that the Source Code Form
of the Covered Software is governed by the terms of this License, and how
they can obtain a copy of this License. You may not attempt to alter or
restrict the recipients’ rights in the Source Code Form.
3.2. Distribution of Executable Form
If You distribute Covered Software in Executable Form then:
a. such Covered Software must also be made available in Source Code Form,
as described in Section 3.1, and You must inform recipients of the
Executable Form how they can obtain a copy of such Source Code Form by
reasonable means in a timely manner, at a charge no more than the cost
of distribution to the recipient; and
b. You may distribute such Executable Form under the terms of this License,
or sublicense it under different terms, provided that the license for
the Executable Form does not attempt to limit or alter the recipients’
rights in the Source Code Form under this License.
3.3. Distribution of a Larger Work
You may create and distribute a Larger Work under terms of Your choice,
provided that You also comply with the requirements of this License for the
Covered Software. If the Larger Work is a combination of Covered Software
with a work governed by one or more Secondary Licenses, and the Covered
Software is not Incompatible With Secondary Licenses, this License permits
You to additionally distribute such Covered Software under the terms of
such Secondary License(s), so that the recipient of the Larger Work may, at
their option, further distribute the Covered Software under the terms of
either this License or such Secondary License(s).
3.4. Notices
You may not remove or alter the substance of any license notices (including
copyright notices, patent notices, disclaimers of warranty, or limitations
of liability) contained within the Source Code Form of the Covered
Software, except that You may alter any license notices to the extent
required to remedy known factual inaccuracies.
3.5. Application of Additional Terms
You may choose to offer, and to charge a fee for, warranty, support,
indemnity or liability obligations to one or more recipients of Covered
Software. However, You may do so only on Your own behalf, and not on behalf
of any Contributor. You must make it absolutely clear that any such
warranty, support, indemnity, or liability obligation is offered by You
alone, and You hereby agree to indemnify every Contributor for any
liability incurred by such Contributor as a result of warranty, support,
indemnity or liability terms You offer. You may include additional
disclaimers of warranty and limitations of liability specific to any
jurisdiction.
4. Inability to Comply Due to Statute or Regulation
If it is impossible for You to comply with any of the terms of this License
with respect to some or all of the Covered Software due to statute, judicial
order, or regulation then You must: (a) comply with the terms of this License
to the maximum extent possible; and (b) describe the limitations and the code
they affect. Such description must be placed in a text file included with all
distributions of the Covered Software under this License. Except to the
extent prohibited by statute or regulation, such description must be
sufficiently detailed for a recipient of ordinary skill to be able to
understand it.
5. Termination
5.1. The rights granted under this License will terminate automatically if You
fail to comply with any of its terms. However, if You become compliant,
then the rights granted under this License from a particular Contributor
are reinstated (a) provisionally, unless and until such Contributor
explicitly and finally terminates Your grants, and (b) on an ongoing basis,
if such Contributor fails to notify You of the non-compliance by some
reasonable means prior to 60 days after You have come back into compliance.
Moreover, Your grants from a particular Contributor are reinstated on an
ongoing basis if such Contributor notifies You of the non-compliance by
some reasonable means, this is the first time You have received notice of
non-compliance with this License from such Contributor, and You become
compliant prior to 30 days after Your receipt of the notice.
5.2. If You initiate litigation against any entity by asserting a patent
infringement claim (excluding declaratory judgment actions, counter-claims,
and cross-claims) alleging that a Contributor Version directly or
indirectly infringes any patent, then the rights granted to You by any and
all Contributors for the Covered Software under Section 2.1 of this License
shall terminate.
5.3. In the event of termination under Sections 5.1 or 5.2 above, all end user
license agreements (excluding distributors and resellers) which have been
validly granted by You or Your distributors under this License prior to
termination shall survive termination.
6. Disclaimer of Warranty
Covered Software is provided under this License on an “as is” basis, without
warranty of any kind, either expressed, implied, or statutory, including,
without limitation, warranties that the Covered Software is free of defects,
merchantable, fit for a particular purpose or non-infringing. The entire
risk as to the quality and performance of the Covered Software is with You.
Should any Covered Software prove defective in any respect, You (not any
Contributor) assume the cost of any necessary servicing, repair, or
correction. This disclaimer of warranty constitutes an essential part of this
License. No use of any Covered Software is authorized under this License
except under this disclaimer.
7. Limitation of Liability
Under no circumstances and under no legal theory, whether tort (including
negligence), contract, or otherwise, shall any Contributor, or anyone who
distributes Covered Software as permitted above, be liable to You for any
direct, indirect, special, incidental, or consequential damages of any
character including, without limitation, damages for lost profits, loss of
goodwill, work stoppage, computer failure or malfunction, or any and all
other commercial damages or losses, even if such party shall have been
informed of the possibility of such damages. This limitation of liability
shall not apply to liability for death or personal injury resulting from such
party’s negligence to the extent applicable law prohibits such limitation.
Some jurisdictions do not allow the exclusion or limitation of incidental or
consequential damages, so this exclusion and limitation may not apply to You.
8. Litigation
Any litigation relating to this License may be brought only in the courts of
a jurisdiction where the defendant maintains its principal place of business
and such litigation shall be governed by laws of that jurisdiction, without
reference to its conflict-of-law provisions. Nothing in this Section shall
prevent a party’s ability to bring cross-claims or counter-claims.
9. Miscellaneous
This License represents the complete agreement concerning the subject matter
hereof. If any provision of this License is held to be unenforceable, such
provision shall be reformed only to the extent necessary to make it
enforceable. Any law or regulation which provides that the language of a
contract shall be construed against the drafter shall not be used to construe
this License against a Contributor.
10. Versions of the License
10.1. New Versions
Mozilla Foundation is the license steward. Except as provided in Section
10.3, no one other than the license steward has the right to modify or
publish new versions of this License. Each version will be given a
distinguishing version number.
10.2. Effect of New Versions
You may distribute the Covered Software under the terms of the version of
the License under which You originally received the Covered Software, or
under the terms of any subsequent version published by the license
steward.
10.3. Modified Versions
If you create software not governed by this License, and you want to
create a new license for such software, you may create and use a modified
version of this License if you rename the license and remove any
references to the name of the license steward (except to note that such
modified license differs from this License).
10.4. Distributing Source Code Form that is Incompatible With Secondary Licenses
If You choose to distribute Source Code Form that is Incompatible With
Secondary Licenses under the terms of this version of the License, the
notice described in Exhibit B of this License must be attached.
Exhibit A - Source Code Form License Notice
This Source Code Form is subject to the
terms of the Mozilla Public License, v.
2.0. If a copy of the MPL was not
distributed with this file, You can
obtain one at
http://mozilla.org/MPL/2.0/.
If it is not possible or desirable to put the notice in a particular file, then
You may include the notice in a location (such as a LICENSE file in a relevant
directory) where a recipient would be likely to look for such a notice.
You may add additional accurate notices of copyright ownership.
Exhibit B - “Incompatible With Secondary Licenses” Notice
This Source Code Form is “Incompatible
With Secondary Licenses”, as defined by
the Mozilla Public License, v. 2.0.

97
vendor/github.com/hashicorp/go-multierror/README.md generated vendored Normal file
View File

@ -0,0 +1,97 @@
# go-multierror
[![Build Status](http://img.shields.io/travis/hashicorp/go-multierror.svg?style=flat-square)][travis]
[![Go Documentation](http://img.shields.io/badge/go-documentation-blue.svg?style=flat-square)][godocs]
[travis]: https://travis-ci.org/hashicorp/go-multierror
[godocs]: https://godoc.org/github.com/hashicorp/go-multierror
`go-multierror` is a package for Go that provides a mechanism for
representing a list of `error` values as a single `error`.
This allows a function in Go to return an `error` that might actually
be a list of errors. If the caller knows this, they can unwrap the
list and access the errors. If the caller doesn't know, the error
formats to a nice human-readable format.
`go-multierror` implements the
[errwrap](https://github.com/hashicorp/errwrap) interface so that it can
be used with that library, as well.
## Installation and Docs
Install using `go get github.com/hashicorp/go-multierror`.
Full documentation is available at
http://godoc.org/github.com/hashicorp/go-multierror
## Usage
go-multierror is easy to use and purposely built to be unobtrusive in
existing Go applications/libraries that may not be aware of it.
**Building a list of errors**
The `Append` function is used to create a list of errors. This function
behaves a lot like the Go built-in `append` function: it doesn't matter
if the first argument is nil, a `multierror.Error`, or any other `error`,
the function behaves as you would expect.
```go
var result error
if err := step1(); err != nil {
result = multierror.Append(result, err)
}
if err := step2(); err != nil {
result = multierror.Append(result, err)
}
return result
```
**Customizing the formatting of the errors**
By specifying a custom `ErrorFormat`, you can customize the format
of the `Error() string` function:
```go
var result *multierror.Error
// ... accumulate errors here, maybe using Append
if result != nil {
result.ErrorFormat = func([]error) string {
return "errors!"
}
}
```
**Accessing the list of errors**
`multierror.Error` implements `error` so if the caller doesn't know about
multierror, it will work just fine. But if you're aware a multierror might
be returned, you can use type switches to access the list of errors:
```go
if err := something(); err != nil {
if merr, ok := err.(*multierror.Error); ok {
// Use merr.Errors
}
}
```
**Returning a multierror only if there are errors**
If you build a `multierror.Error`, you can use the `ErrorOrNil` function
to return an `error` implementation only if there are errors to return:
```go
var result *multierror.Error
// ... accumulate errors here
// Return the `error` only if errors were added to the multierror, otherwise
// return nil since there are no errors.
return result.ErrorOrNil()
```

41
vendor/github.com/hashicorp/go-multierror/append.go generated vendored Normal file
View File

@ -0,0 +1,41 @@
package multierror
// Append is a helper function that will append more errors
// onto an Error in order to create a larger multi-error.
//
// If err is not a multierror.Error, then it will be turned into
// one. If any of the errs are multierr.Error, they will be flattened
// one level into err.
func Append(err error, errs ...error) *Error {
switch err := err.(type) {
case *Error:
// Typed nils can reach here, so initialize if we are nil
if err == nil {
err = new(Error)
}
// Go through each error and flatten
for _, e := range errs {
switch e := e.(type) {
case *Error:
if e != nil {
err.Errors = append(err.Errors, e.Errors...)
}
default:
if e != nil {
err.Errors = append(err.Errors, e)
}
}
}
return err
default:
newErrs := make([]error, 0, len(errs)+1)
if err != nil {
newErrs = append(newErrs, err)
}
newErrs = append(newErrs, errs...)
return Append(&Error{}, newErrs...)
}
}

26
vendor/github.com/hashicorp/go-multierror/flatten.go generated vendored Normal file
View File

@ -0,0 +1,26 @@
package multierror
// Flatten flattens the given error, merging any *Errors together into
// a single *Error.
func Flatten(err error) error {
// If it isn't an *Error, just return the error as-is
if _, ok := err.(*Error); !ok {
return err
}
// Otherwise, make the result and flatten away!
flatErr := new(Error)
flatten(err, flatErr)
return flatErr
}
func flatten(err error, flatErr *Error) {
switch err := err.(type) {
case *Error:
for _, e := range err.Errors {
flatten(e, flatErr)
}
default:
flatErr.Errors = append(flatErr.Errors, err)
}
}

27
vendor/github.com/hashicorp/go-multierror/format.go generated vendored Normal file
View File

@ -0,0 +1,27 @@
package multierror
import (
"fmt"
"strings"
)
// ErrorFormatFunc is a function callback that is called by Error to
// turn the list of errors into a string.
type ErrorFormatFunc func([]error) string
// ListFormatFunc is a basic formatter that outputs the number of errors
// that occurred along with a bullet point list of the errors.
func ListFormatFunc(es []error) string {
if len(es) == 1 {
return fmt.Sprintf("1 error occurred:\n\t* %s\n\n", es[0])
}
points := make([]string, len(es))
for i, err := range es {
points[i] = fmt.Sprintf("* %s", err)
}
return fmt.Sprintf(
"%d errors occurred:\n\t%s\n\n",
len(es), strings.Join(points, "\n\t"))
}

3
vendor/github.com/hashicorp/go-multierror/go.mod generated vendored Normal file
View File

@ -0,0 +1,3 @@
module github.com/hashicorp/go-multierror
require github.com/hashicorp/errwrap v1.0.0

51
vendor/github.com/hashicorp/go-multierror/multierror.go generated vendored Normal file
View File

@ -0,0 +1,51 @@
package multierror
import (
"fmt"
)
// Error is an error type to track multiple errors. This is used to
// accumulate errors in cases and return them as a single "error".
type Error struct {
Errors []error
ErrorFormat ErrorFormatFunc
}
func (e *Error) Error() string {
fn := e.ErrorFormat
if fn == nil {
fn = ListFormatFunc
}
return fn(e.Errors)
}
// ErrorOrNil returns an error interface if this Error represents
// a list of errors, or returns nil if the list of errors is empty. This
// function is useful at the end of accumulation to make sure that the value
// returned represents the existence of errors.
func (e *Error) ErrorOrNil() error {
if e == nil {
return nil
}
if len(e.Errors) == 0 {
return nil
}
return e
}
func (e *Error) GoString() string {
return fmt.Sprintf("*%#v", *e)
}
// WrappedErrors returns the list of errors that this Error is wrapping.
// It is an implementation of the errwrap.Wrapper interface so that
// multierror.Error can be used with that library.
//
// This method is not safe to be called concurrently and is no different
// than accessing the Errors field directly. It is implemented only to
// satisfy the errwrap.Wrapper interface.
func (e *Error) WrappedErrors() []error {
return e.Errors
}

37
vendor/github.com/hashicorp/go-multierror/prefix.go generated vendored Normal file
View File

@ -0,0 +1,37 @@
package multierror
import (
"fmt"
"github.com/hashicorp/errwrap"
)
// Prefix is a helper function that will prefix some text
// to the given error. If the error is a multierror.Error, then
// it will be prefixed to each wrapped error.
//
// This is useful to use when appending multiple multierrors
// together in order to give better scoping.
func Prefix(err error, prefix string) error {
if err == nil {
return nil
}
format := fmt.Sprintf("%s {{err}}", prefix)
switch err := err.(type) {
case *Error:
// Typed nils can reach here, so initialize if we are nil
if err == nil {
err = new(Error)
}
// Wrap each of the errors
for i, e := range err.Errors {
err.Errors[i] = errwrap.Wrapf(format, e)
}
return err
default:
return errwrap.Wrapf(format, err)
}
}

16
vendor/github.com/hashicorp/go-multierror/sort.go generated vendored Normal file
View File

@ -0,0 +1,16 @@
package multierror
// Len implements sort.Interface function for length
func (err Error) Len() int {
return len(err.Errors)
}
// Swap implements sort.Interface function for swapping elements
func (err Error) Swap(i, j int) {
err.Errors[i], err.Errors[j] = err.Errors[j], err.Errors[i]
}
// Less implements sort.Interface function for determining order
func (err Error) Less(i, j int) bool {
return err.Errors[i].Error() < err.Errors[j].Error()
}