Merge pull request #6021 from dmcgowan/runc-shim-plugin
This commit is contained in:
Fu Wei
GitHub
commit
d47fa40d1b
@ -20,10 +20,13 @@
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package main
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import (
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v2 "github.com/containerd/containerd/runtime/v2/runc/v2"
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"context"
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"github.com/containerd/containerd/runtime/v2/runc/manager"
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_ "github.com/containerd/containerd/runtime/v2/runc/task/plugin"
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"github.com/containerd/containerd/runtime/v2/shim"
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)
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func main() {
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shim.Run("io.containerd.runc.v2", v2.New)
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shim.RunManager(context.Background(), manager.NewShimManager("io.containerd.runc.v2"))
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}
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109
pkg/shutdown/shutdown.go
Normal file
109
pkg/shutdown/shutdown.go
Normal file
@ -0,0 +1,109 @@
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/*
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Copyright The containerd Authors.
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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*/
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package shutdown
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import (
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"context"
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"errors"
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"sync"
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"time"
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"golang.org/x/sync/errgroup"
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)
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// ErrShutdown is the error condition when a context has been fully shutdown
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var ErrShutdown = errors.New("shutdown")
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// Service is used to facilitate shutdown by through callback
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// registration and shutdown initiation
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type Service interface {
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// Shutdown initiates shutdown
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Shutdown()
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// RegisterCallback registers functions to be called on shutdown and before
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// the shutdown channel is closed. A callback error will propagate to the
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// context error
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RegisterCallback(func(context.Context) error)
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}
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// WithShutdown returns a context which is similar to a cancel context, but
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// with callbacks which can propagate to the context error. Unlike a cancel
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// context, the shutdown context cannot be canceled from the parent context.
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// However, future child contexes will be canceled upon shutdown.
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func WithShutdown(ctx context.Context) (context.Context, Service) {
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ss := &shutdownService{
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Context: ctx,
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doneC: make(chan struct{}),
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timeout: 30 * time.Second,
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}
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return ss, ss
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}
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type shutdownService struct {
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context.Context
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mu sync.Mutex
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isShutdown bool
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callbacks []func(context.Context) error
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doneC chan struct{}
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err error
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timeout time.Duration
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}
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func (s *shutdownService) Shutdown() {
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s.mu.Lock()
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defer s.mu.Unlock()
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if s.isShutdown {
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return
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}
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s.isShutdown = true
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go func(callbacks []func(context.Context) error) {
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ctx, cancel := context.WithTimeout(context.Background(), s.timeout)
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defer cancel()
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grp, ctx := errgroup.WithContext(ctx)
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for i := range callbacks {
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fn := callbacks[i]
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grp.Go(func() error { return fn(ctx) })
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}
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err := grp.Wait()
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if err == nil {
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err = ErrShutdown
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}
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s.mu.Lock()
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s.err = err
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close(s.doneC)
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s.mu.Unlock()
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}(s.callbacks)
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}
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func (s *shutdownService) Done() <-chan struct{} {
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return s.doneC
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}
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func (s *shutdownService) Err() error {
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s.mu.Lock()
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defer s.mu.Unlock()
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return s.err
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}
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func (s *shutdownService) RegisterCallback(fn func(context.Context) error) {
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s.mu.Lock()
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defer s.mu.Unlock()
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if s.callbacks == nil {
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s.callbacks = []func(context.Context) error{}
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}
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s.callbacks = append(s.callbacks, fn)
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}
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277
runtime/v2/runc/manager/manager_linux.go
Normal file
277
runtime/v2/runc/manager/manager_linux.go
Normal file
@ -0,0 +1,277 @@
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/*
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Copyright The containerd Authors.
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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*/
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package manager
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import (
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"context"
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"encoding/json"
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"io/ioutil"
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"os"
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"path/filepath"
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goruntime "runtime"
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"syscall"
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"time"
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"github.com/containerd/cgroups"
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cgroupsv2 "github.com/containerd/cgroups/v2"
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"github.com/containerd/containerd/log"
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"github.com/containerd/containerd/mount"
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"github.com/containerd/containerd/namespaces"
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"github.com/containerd/containerd/pkg/process"
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"github.com/containerd/containerd/pkg/schedcore"
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"github.com/containerd/containerd/runtime/v2/runc"
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"github.com/containerd/containerd/runtime/v2/runc/options"
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"github.com/containerd/containerd/runtime/v2/shim"
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runcC "github.com/containerd/go-runc"
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"github.com/containerd/typeurl"
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"github.com/gogo/protobuf/proto"
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ptypes "github.com/gogo/protobuf/types"
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"github.com/pkg/errors"
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exec "golang.org/x/sys/execabs"
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"golang.org/x/sys/unix"
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)
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// NewShimManager returns an implementation of the shim manager
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// using runc
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func NewShimManager(name string) shim.Manager {
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return &manager{
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name: name,
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}
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}
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// group labels specifies how the shim groups services.
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// currently supports a runc.v2 specific .group label and the
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// standard k8s pod label. Order matters in this list
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var groupLabels = []string{
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"io.containerd.runc.v2.group",
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"io.kubernetes.cri.sandbox-id",
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}
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type spec struct {
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Annotations map[string]string `json:"annotations,omitempty"`
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}
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type manager struct {
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name string
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}
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func newCommand(ctx context.Context, id, containerdBinary, containerdAddress, containerdTTRPCAddress string) (*exec.Cmd, error) {
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ns, err := namespaces.NamespaceRequired(ctx)
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if err != nil {
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return nil, err
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}
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self, err := os.Executable()
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if err != nil {
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return nil, err
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}
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cwd, err := os.Getwd()
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if err != nil {
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return nil, err
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}
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args := []string{
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"-namespace", ns,
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"-id", id,
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"-address", containerdAddress,
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}
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cmd := exec.Command(self, args...)
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cmd.Dir = cwd
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cmd.Env = append(os.Environ(), "GOMAXPROCS=4")
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cmd.SysProcAttr = &syscall.SysProcAttr{
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Setpgid: true,
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}
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return cmd, nil
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}
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func readSpec() (*spec, error) {
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f, err := os.Open("config.json")
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if err != nil {
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return nil, err
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}
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defer f.Close()
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var s spec
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if err := json.NewDecoder(f).Decode(&s); err != nil {
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return nil, err
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}
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return &s, nil
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}
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func (m manager) Name() string {
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return m.name
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}
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func (manager) Start(ctx context.Context, id string, opts shim.StartOpts) (_ string, retErr error) {
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cmd, err := newCommand(ctx, id, opts.ContainerdBinary, opts.Address, opts.TTRPCAddress)
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if err != nil {
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return "", err
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}
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grouping := id
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spec, err := readSpec()
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if err != nil {
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return "", err
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}
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for _, group := range groupLabels {
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if groupID, ok := spec.Annotations[group]; ok {
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grouping = groupID
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break
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}
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}
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address, err := shim.SocketAddress(ctx, opts.Address, grouping)
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if err != nil {
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return "", err
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}
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socket, err := shim.NewSocket(address)
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if err != nil {
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// the only time where this would happen is if there is a bug and the socket
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// was not cleaned up in the cleanup method of the shim or we are using the
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// grouping functionality where the new process should be run with the same
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// shim as an existing container
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if !shim.SocketEaddrinuse(err) {
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return "", errors.Wrap(err, "create new shim socket")
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}
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if shim.CanConnect(address) {
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if err := shim.WriteAddress("address", address); err != nil {
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return "", errors.Wrap(err, "write existing socket for shim")
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}
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return address, nil
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}
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if err := shim.RemoveSocket(address); err != nil {
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return "", errors.Wrap(err, "remove pre-existing socket")
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}
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if socket, err = shim.NewSocket(address); err != nil {
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return "", errors.Wrap(err, "try create new shim socket 2x")
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}
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}
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defer func() {
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if retErr != nil {
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socket.Close()
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_ = shim.RemoveSocket(address)
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}
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}()
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// make sure that reexec shim-v2 binary use the value if need
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if err := shim.WriteAddress("address", address); err != nil {
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return "", err
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}
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f, err := socket.File()
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if err != nil {
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return "", err
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}
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cmd.ExtraFiles = append(cmd.ExtraFiles, f)
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goruntime.LockOSThread()
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if os.Getenv("SCHED_CORE") != "" {
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if err := schedcore.Create(schedcore.ProcessGroup); err != nil {
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return "", errors.Wrap(err, "enable sched core support")
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}
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}
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if err := cmd.Start(); err != nil {
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f.Close()
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return "", err
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}
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goruntime.UnlockOSThread()
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defer func() {
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if retErr != nil {
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cmd.Process.Kill()
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}
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}()
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// make sure to wait after start
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go cmd.Wait()
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if data, err := ioutil.ReadAll(os.Stdin); err == nil {
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if len(data) > 0 {
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var any ptypes.Any
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if err := proto.Unmarshal(data, &any); err != nil {
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return "", err
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}
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v, err := typeurl.UnmarshalAny(&any)
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if err != nil {
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return "", err
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}
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if opts, ok := v.(*options.Options); ok {
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if opts.ShimCgroup != "" {
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if cgroups.Mode() == cgroups.Unified {
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cg, err := cgroupsv2.LoadManager("/sys/fs/cgroup", opts.ShimCgroup)
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if err != nil {
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return "", errors.Wrapf(err, "failed to load cgroup %s", opts.ShimCgroup)
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}
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if err := cg.AddProc(uint64(cmd.Process.Pid)); err != nil {
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return "", errors.Wrapf(err, "failed to join cgroup %s", opts.ShimCgroup)
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}
|
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} else {
|
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cg, err := cgroups.Load(cgroups.V1, cgroups.StaticPath(opts.ShimCgroup))
|
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if err != nil {
|
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return "", errors.Wrapf(err, "failed to load cgroup %s", opts.ShimCgroup)
|
||||
}
|
||||
if err := cg.Add(cgroups.Process{
|
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Pid: cmd.Process.Pid,
|
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}); err != nil {
|
||||
return "", errors.Wrapf(err, "failed to join cgroup %s", opts.ShimCgroup)
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
if err := shim.AdjustOOMScore(cmd.Process.Pid); err != nil {
|
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return "", errors.Wrap(err, "failed to adjust OOM score for shim")
|
||||
}
|
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return address, nil
|
||||
}
|
||||
|
||||
func (manager) Stop(ctx context.Context, id string) (shim.StopStatus, error) {
|
||||
cwd, err := os.Getwd()
|
||||
if err != nil {
|
||||
return shim.StopStatus{}, err
|
||||
}
|
||||
|
||||
path := filepath.Join(filepath.Dir(cwd), id)
|
||||
ns, err := namespaces.NamespaceRequired(ctx)
|
||||
if err != nil {
|
||||
return shim.StopStatus{}, err
|
||||
}
|
||||
runtime, err := runc.ReadRuntime(path)
|
||||
if err != nil {
|
||||
return shim.StopStatus{}, err
|
||||
}
|
||||
opts, err := runc.ReadOptions(path)
|
||||
if err != nil {
|
||||
return shim.StopStatus{}, err
|
||||
}
|
||||
root := process.RuncRoot
|
||||
if opts != nil && opts.Root != "" {
|
||||
root = opts.Root
|
||||
}
|
||||
|
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r := process.NewRunc(root, path, ns, runtime, "", false)
|
||||
if err := r.Delete(ctx, id, &runcC.DeleteOpts{
|
||||
Force: true,
|
||||
}); err != nil {
|
||||
log.G(ctx).WithError(err).Warn("failed to remove runc container")
|
||||
}
|
||||
if err := mount.UnmountAll(filepath.Join(path, "rootfs"), 0); err != nil {
|
||||
log.G(ctx).WithError(err).Warn("failed to cleanup rootfs mount")
|
||||
}
|
||||
return shim.StopStatus{
|
||||
ExitedAt: time.Now(),
|
||||
ExitStatus: 128 + int(unix.SIGKILL),
|
||||
}, nil
|
||||
}
|
||||
47
runtime/v2/runc/task/plugin/plugin_linux.go
Normal file
47
runtime/v2/runc/task/plugin/plugin_linux.go
Normal file
@ -0,0 +1,47 @@
|
||||
/*
|
||||
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 plugin
|
||||
|
||||
import (
|
||||
"github.com/containerd/containerd/pkg/shutdown"
|
||||
"github.com/containerd/containerd/plugin"
|
||||
"github.com/containerd/containerd/runtime/v2/runc/task"
|
||||
"github.com/containerd/containerd/runtime/v2/shim"
|
||||
)
|
||||
|
||||
func init() {
|
||||
plugin.Register(&plugin.Registration{
|
||||
Type: plugin.TTRPCPlugin,
|
||||
ID: "task",
|
||||
Requires: []plugin.Type{
|
||||
plugin.EventPlugin,
|
||||
plugin.InternalPlugin,
|
||||
},
|
||||
InitFn: func(ic *plugin.InitContext) (interface{}, error) {
|
||||
pp, err := ic.GetByID(plugin.EventPlugin, "publisher")
|
||||
if err != nil {
|
||||
return nil, err
|
||||
}
|
||||
ss, err := ic.GetByID(plugin.InternalPlugin, "shutdown")
|
||||
if err != nil {
|
||||
return nil, err
|
||||
}
|
||||
return task.NewTaskService(ic.Context, pp.(shim.Publisher), ss.(shutdown.Service))
|
||||
},
|
||||
})
|
||||
|
||||
}
|
||||
619
runtime/v2/runc/task/service.go
Normal file
619
runtime/v2/runc/task/service.go
Normal file
@ -0,0 +1,619 @@
|
||||
//go:build linux
|
||||
// +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 task
|
||||
|
||||
import (
|
||||
"context"
|
||||
"os"
|
||||
"sync"
|
||||
|
||||
"github.com/containerd/cgroups"
|
||||
cgroupsv2 "github.com/containerd/cgroups/v2"
|
||||
eventstypes "github.com/containerd/containerd/api/events"
|
||||
"github.com/containerd/containerd/api/types/task"
|
||||
"github.com/containerd/containerd/errdefs"
|
||||
"github.com/containerd/containerd/namespaces"
|
||||
"github.com/containerd/containerd/pkg/oom"
|
||||
oomv1 "github.com/containerd/containerd/pkg/oom/v1"
|
||||
oomv2 "github.com/containerd/containerd/pkg/oom/v2"
|
||||
"github.com/containerd/containerd/pkg/process"
|
||||
"github.com/containerd/containerd/pkg/shutdown"
|
||||
"github.com/containerd/containerd/pkg/stdio"
|
||||
"github.com/containerd/containerd/pkg/userns"
|
||||
"github.com/containerd/containerd/runtime/v2/runc"
|
||||
"github.com/containerd/containerd/runtime/v2/runc/options"
|
||||
"github.com/containerd/containerd/runtime/v2/shim"
|
||||
shimapi "github.com/containerd/containerd/runtime/v2/task"
|
||||
taskAPI "github.com/containerd/containerd/runtime/v2/task"
|
||||
"github.com/containerd/containerd/sys/reaper"
|
||||
runcC "github.com/containerd/go-runc"
|
||||
"github.com/containerd/ttrpc"
|
||||
"github.com/containerd/typeurl"
|
||||
ptypes "github.com/gogo/protobuf/types"
|
||||
"github.com/pkg/errors"
|
||||
"github.com/sirupsen/logrus"
|
||||
)
|
||||
|
||||
var (
|
||||
_ = (taskAPI.TaskService)(&service{})
|
||||
empty = &ptypes.Empty{}
|
||||
)
|
||||
|
||||
// NewTaskService creates a new instance of a task service
|
||||
func NewTaskService(ctx context.Context, publisher shim.Publisher, sd shutdown.Service) (taskAPI.TaskService, error) {
|
||||
var (
|
||||
ep oom.Watcher
|
||||
err error
|
||||
)
|
||||
if cgroups.Mode() == cgroups.Unified {
|
||||
ep, err = oomv2.New(publisher)
|
||||
} else {
|
||||
ep, err = oomv1.New(publisher)
|
||||
}
|
||||
if err != nil {
|
||||
return nil, err
|
||||
}
|
||||
go ep.Run(ctx)
|
||||
s := &service{
|
||||
context: ctx,
|
||||
events: make(chan interface{}, 128),
|
||||
ec: reaper.Default.Subscribe(),
|
||||
ep: ep,
|
||||
shutdown: sd,
|
||||
containers: make(map[string]*runc.Container),
|
||||
}
|
||||
go s.processExits()
|
||||
runcC.Monitor = reaper.Default
|
||||
if err := s.initPlatform(); err != nil {
|
||||
return nil, errors.Wrap(err, "failed to initialized platform behavior")
|
||||
}
|
||||
go s.forward(ctx, publisher)
|
||||
sd.RegisterCallback(func(context.Context) error {
|
||||
close(s.events)
|
||||
return nil
|
||||
})
|
||||
|
||||
if address, err := shim.ReadAddress("address"); err == nil {
|
||||
sd.RegisterCallback(func(context.Context) error {
|
||||
return shim.RemoveSocket(address)
|
||||
})
|
||||
}
|
||||
return s, nil
|
||||
}
|
||||
|
||||
// service is the shim implementation of a remote shim over GRPC
|
||||
type service struct {
|
||||
mu sync.Mutex
|
||||
eventSendMu sync.Mutex
|
||||
|
||||
context context.Context
|
||||
events chan interface{}
|
||||
platform stdio.Platform
|
||||
ec chan runcC.Exit
|
||||
ep oom.Watcher
|
||||
|
||||
containers map[string]*runc.Container
|
||||
|
||||
shutdown shutdown.Service
|
||||
}
|
||||
|
||||
// Create a new initial process and container with the underlying OCI runtime
|
||||
func (s *service) Create(ctx context.Context, r *taskAPI.CreateTaskRequest) (_ *taskAPI.CreateTaskResponse, err error) {
|
||||
s.mu.Lock()
|
||||
defer s.mu.Unlock()
|
||||
|
||||
container, err := runc.NewContainer(ctx, s.platform, r)
|
||||
if err != nil {
|
||||
return nil, err
|
||||
}
|
||||
|
||||
s.containers[r.ID] = container
|
||||
|
||||
s.send(&eventstypes.TaskCreate{
|
||||
ContainerID: r.ID,
|
||||
Bundle: r.Bundle,
|
||||
Rootfs: r.Rootfs,
|
||||
IO: &eventstypes.TaskIO{
|
||||
Stdin: r.Stdin,
|
||||
Stdout: r.Stdout,
|
||||
Stderr: r.Stderr,
|
||||
Terminal: r.Terminal,
|
||||
},
|
||||
Checkpoint: r.Checkpoint,
|
||||
Pid: uint32(container.Pid()),
|
||||
})
|
||||
|
||||
return &taskAPI.CreateTaskResponse{
|
||||
Pid: uint32(container.Pid()),
|
||||
}, nil
|
||||
}
|
||||
|
||||
func (s *service) RegisterTTRPC(server *ttrpc.Server) error {
|
||||
shimapi.RegisterTaskService(server, s)
|
||||
return nil
|
||||
}
|
||||
|
||||
// Start a process
|
||||
func (s *service) Start(ctx context.Context, r *taskAPI.StartRequest) (*taskAPI.StartResponse, error) {
|
||||
container, err := s.getContainer(r.ID)
|
||||
if err != nil {
|
||||
return nil, err
|
||||
}
|
||||
|
||||
// hold the send lock so that the start events are sent before any exit events in the error case
|
||||
s.eventSendMu.Lock()
|
||||
p, err := container.Start(ctx, r)
|
||||
if err != nil {
|
||||
s.eventSendMu.Unlock()
|
||||
return nil, errdefs.ToGRPC(err)
|
||||
}
|
||||
|
||||
switch r.ExecID {
|
||||
case "":
|
||||
switch cg := container.Cgroup().(type) {
|
||||
case cgroups.Cgroup:
|
||||
if err := s.ep.Add(container.ID, cg); err != nil {
|
||||
logrus.WithError(err).Error("add cg to OOM monitor")
|
||||
}
|
||||
case *cgroupsv2.Manager:
|
||||
allControllers, err := cg.RootControllers()
|
||||
if err != nil {
|
||||
logrus.WithError(err).Error("failed to get root controllers")
|
||||
} else {
|
||||
if err := cg.ToggleControllers(allControllers, cgroupsv2.Enable); err != nil {
|
||||
if userns.RunningInUserNS() {
|
||||
logrus.WithError(err).Debugf("failed to enable controllers (%v)", allControllers)
|
||||
} else {
|
||||
logrus.WithError(err).Errorf("failed to enable controllers (%v)", allControllers)
|
||||
}
|
||||
}
|
||||
}
|
||||
if err := s.ep.Add(container.ID, cg); err != nil {
|
||||
logrus.WithError(err).Error("add cg to OOM monitor")
|
||||
}
|
||||
}
|
||||
|
||||
s.send(&eventstypes.TaskStart{
|
||||
ContainerID: container.ID,
|
||||
Pid: uint32(p.Pid()),
|
||||
})
|
||||
default:
|
||||
s.send(&eventstypes.TaskExecStarted{
|
||||
ContainerID: container.ID,
|
||||
ExecID: r.ExecID,
|
||||
Pid: uint32(p.Pid()),
|
||||
})
|
||||
}
|
||||
s.eventSendMu.Unlock()
|
||||
return &taskAPI.StartResponse{
|
||||
Pid: uint32(p.Pid()),
|
||||
}, nil
|
||||
}
|
||||
|
||||
// Delete the initial process and container
|
||||
func (s *service) Delete(ctx context.Context, r *taskAPI.DeleteRequest) (*taskAPI.DeleteResponse, error) {
|
||||
container, err := s.getContainer(r.ID)
|
||||
if err != nil {
|
||||
return nil, err
|
||||
}
|
||||
p, err := container.Delete(ctx, r)
|
||||
if err != nil {
|
||||
return nil, errdefs.ToGRPC(err)
|
||||
}
|
||||
// if we deleted an init task, send the task delete event
|
||||
if r.ExecID == "" {
|
||||
s.mu.Lock()
|
||||
delete(s.containers, r.ID)
|
||||
s.mu.Unlock()
|
||||
s.send(&eventstypes.TaskDelete{
|
||||
ContainerID: container.ID,
|
||||
Pid: uint32(p.Pid()),
|
||||
ExitStatus: uint32(p.ExitStatus()),
|
||||
ExitedAt: p.ExitedAt(),
|
||||
})
|
||||
}
|
||||
return &taskAPI.DeleteResponse{
|
||||
ExitStatus: uint32(p.ExitStatus()),
|
||||
ExitedAt: p.ExitedAt(),
|
||||
Pid: uint32(p.Pid()),
|
||||
}, nil
|
||||
}
|
||||
|
||||
// Exec an additional process inside the container
|
||||
func (s *service) Exec(ctx context.Context, r *taskAPI.ExecProcessRequest) (*ptypes.Empty, error) {
|
||||
container, err := s.getContainer(r.ID)
|
||||
if err != nil {
|
||||
return nil, err
|
||||
}
|
||||
ok, cancel := container.ReserveProcess(r.ExecID)
|
||||
if !ok {
|
||||
return nil, errdefs.ToGRPCf(errdefs.ErrAlreadyExists, "id %s", r.ExecID)
|
||||
}
|
||||
process, err := container.Exec(ctx, r)
|
||||
if err != nil {
|
||||
cancel()
|
||||
return nil, errdefs.ToGRPC(err)
|
||||
}
|
||||
|
||||
s.send(&eventstypes.TaskExecAdded{
|
||||
ContainerID: container.ID,
|
||||
ExecID: process.ID(),
|
||||
})
|
||||
return empty, nil
|
||||
}
|
||||
|
||||
// ResizePty of a process
|
||||
func (s *service) ResizePty(ctx context.Context, r *taskAPI.ResizePtyRequest) (*ptypes.Empty, error) {
|
||||
container, err := s.getContainer(r.ID)
|
||||
if err != nil {
|
||||
return nil, err
|
||||
}
|
||||
if err := container.ResizePty(ctx, r); err != nil {
|
||||
return nil, errdefs.ToGRPC(err)
|
||||
}
|
||||
return empty, nil
|
||||
}
|
||||
|
||||
// State returns runtime state information for a process
|
||||
func (s *service) State(ctx context.Context, r *taskAPI.StateRequest) (*taskAPI.StateResponse, error) {
|
||||
container, err := s.getContainer(r.ID)
|
||||
if err != nil {
|
||||
return nil, err
|
||||
}
|
||||
p, err := container.Process(r.ExecID)
|
||||
if err != nil {
|
||||
return nil, errdefs.ToGRPC(err)
|
||||
}
|
||||
st, err := p.Status(ctx)
|
||||
if err != nil {
|
||||
return nil, err
|
||||
}
|
||||
status := task.StatusUnknown
|
||||
switch st {
|
||||
case "created":
|
||||
status = task.StatusCreated
|
||||
case "running":
|
||||
status = task.StatusRunning
|
||||
case "stopped":
|
||||
status = task.StatusStopped
|
||||
case "paused":
|
||||
status = task.StatusPaused
|
||||
case "pausing":
|
||||
status = task.StatusPausing
|
||||
}
|
||||
sio := p.Stdio()
|
||||
return &taskAPI.StateResponse{
|
||||
ID: p.ID(),
|
||||
Bundle: container.Bundle,
|
||||
Pid: uint32(p.Pid()),
|
||||
Status: status,
|
||||
Stdin: sio.Stdin,
|
||||
Stdout: sio.Stdout,
|
||||
Stderr: sio.Stderr,
|
||||
Terminal: sio.Terminal,
|
||||
ExitStatus: uint32(p.ExitStatus()),
|
||||
ExitedAt: p.ExitedAt(),
|
||||
}, nil
|
||||
}
|
||||
|
||||
// Pause the container
|
||||
func (s *service) Pause(ctx context.Context, r *taskAPI.PauseRequest) (*ptypes.Empty, error) {
|
||||
container, err := s.getContainer(r.ID)
|
||||
if err != nil {
|
||||
return nil, err
|
||||
}
|
||||
if err := container.Pause(ctx); err != nil {
|
||||
return nil, errdefs.ToGRPC(err)
|
||||
}
|
||||
s.send(&eventstypes.TaskPaused{
|
||||
ContainerID: container.ID,
|
||||
})
|
||||
return empty, nil
|
||||
}
|
||||
|
||||
// Resume the container
|
||||
func (s *service) Resume(ctx context.Context, r *taskAPI.ResumeRequest) (*ptypes.Empty, error) {
|
||||
container, err := s.getContainer(r.ID)
|
||||
if err != nil {
|
||||
return nil, err
|
||||
}
|
||||
if err := container.Resume(ctx); err != nil {
|
||||
return nil, errdefs.ToGRPC(err)
|
||||
}
|
||||
s.send(&eventstypes.TaskResumed{
|
||||
ContainerID: container.ID,
|
||||
})
|
||||
return empty, nil
|
||||
}
|
||||
|
||||
// Kill a process with the provided signal
|
||||
func (s *service) Kill(ctx context.Context, r *taskAPI.KillRequest) (*ptypes.Empty, error) {
|
||||
container, err := s.getContainer(r.ID)
|
||||
if err != nil {
|
||||
return nil, err
|
||||
}
|
||||
if err := container.Kill(ctx, r); err != nil {
|
||||
return nil, errdefs.ToGRPC(err)
|
||||
}
|
||||
return empty, nil
|
||||
}
|
||||
|
||||
// Pids returns all pids inside the container
|
||||
func (s *service) Pids(ctx context.Context, r *taskAPI.PidsRequest) (*taskAPI.PidsResponse, error) {
|
||||
container, err := s.getContainer(r.ID)
|
||||
if err != nil {
|
||||
return nil, err
|
||||
}
|
||||
pids, err := s.getContainerPids(ctx, r.ID)
|
||||
if err != nil {
|
||||
return nil, errdefs.ToGRPC(err)
|
||||
}
|
||||
var processes []*task.ProcessInfo
|
||||
for _, pid := range pids {
|
||||
pInfo := task.ProcessInfo{
|
||||
Pid: pid,
|
||||
}
|
||||
for _, p := range container.ExecdProcesses() {
|
||||
if p.Pid() == int(pid) {
|
||||
d := &options.ProcessDetails{
|
||||
ExecID: p.ID(),
|
||||
}
|
||||
a, err := typeurl.MarshalAny(d)
|
||||
if err != nil {
|
||||
return nil, errors.Wrapf(err, "failed to marshal process %d info", pid)
|
||||
}
|
||||
pInfo.Info = a
|
||||
break
|
||||
}
|
||||
}
|
||||
processes = append(processes, &pInfo)
|
||||
}
|
||||
return &taskAPI.PidsResponse{
|
||||
Processes: processes,
|
||||
}, nil
|
||||
}
|
||||
|
||||
// CloseIO of a process
|
||||
func (s *service) CloseIO(ctx context.Context, r *taskAPI.CloseIORequest) (*ptypes.Empty, error) {
|
||||
container, err := s.getContainer(r.ID)
|
||||
if err != nil {
|
||||
return nil, err
|
||||
}
|
||||
if err := container.CloseIO(ctx, r); err != nil {
|
||||
return nil, err
|
||||
}
|
||||
return empty, nil
|
||||
}
|
||||
|
||||
// Checkpoint the container
|
||||
func (s *service) Checkpoint(ctx context.Context, r *taskAPI.CheckpointTaskRequest) (*ptypes.Empty, error) {
|
||||
container, err := s.getContainer(r.ID)
|
||||
if err != nil {
|
||||
return nil, err
|
||||
}
|
||||
if err := container.Checkpoint(ctx, r); err != nil {
|
||||
return nil, errdefs.ToGRPC(err)
|
||||
}
|
||||
return empty, nil
|
||||
}
|
||||
|
||||
// Update a running container
|
||||
func (s *service) Update(ctx context.Context, r *taskAPI.UpdateTaskRequest) (*ptypes.Empty, error) {
|
||||
container, err := s.getContainer(r.ID)
|
||||
if err != nil {
|
||||
return nil, err
|
||||
}
|
||||
if err := container.Update(ctx, r); err != nil {
|
||||
return nil, errdefs.ToGRPC(err)
|
||||
}
|
||||
return empty, nil
|
||||
}
|
||||
|
||||
// Wait for a process to exit
|
||||
func (s *service) Wait(ctx context.Context, r *taskAPI.WaitRequest) (*taskAPI.WaitResponse, error) {
|
||||
container, err := s.getContainer(r.ID)
|
||||
if err != nil {
|
||||
return nil, err
|
||||
}
|
||||
p, err := container.Process(r.ExecID)
|
||||
if err != nil {
|
||||
return nil, errdefs.ToGRPC(err)
|
||||
}
|
||||
p.Wait()
|
||||
|
||||
return &taskAPI.WaitResponse{
|
||||
ExitStatus: uint32(p.ExitStatus()),
|
||||
ExitedAt: p.ExitedAt(),
|
||||
}, nil
|
||||
}
|
||||
|
||||
// Connect returns shim information such as the shim's pid
|
||||
func (s *service) Connect(ctx context.Context, r *taskAPI.ConnectRequest) (*taskAPI.ConnectResponse, error) {
|
||||
var pid int
|
||||
if container, err := s.getContainer(r.ID); err == nil {
|
||||
pid = container.Pid()
|
||||
}
|
||||
return &taskAPI.ConnectResponse{
|
||||
ShimPid: uint32(os.Getpid()),
|
||||
TaskPid: uint32(pid),
|
||||
}, nil
|
||||
}
|
||||
|
||||
func (s *service) Shutdown(ctx context.Context, r *taskAPI.ShutdownRequest) (*ptypes.Empty, error) {
|
||||
s.mu.Lock()
|
||||
defer s.mu.Unlock()
|
||||
|
||||
// return out if the shim is still servicing containers
|
||||
if len(s.containers) > 0 {
|
||||
return empty, nil
|
||||
}
|
||||
|
||||
// please make sure that temporary resource has been cleanup or registered
|
||||
// for cleanup before calling shutdown
|
||||
s.shutdown.Shutdown()
|
||||
|
||||
return empty, nil
|
||||
}
|
||||
|
||||
func (s *service) Stats(ctx context.Context, r *taskAPI.StatsRequest) (*taskAPI.StatsResponse, error) {
|
||||
container, err := s.getContainer(r.ID)
|
||||
if err != nil {
|
||||
return nil, err
|
||||
}
|
||||
cgx := container.Cgroup()
|
||||
if cgx == nil {
|
||||
return nil, errdefs.ToGRPCf(errdefs.ErrNotFound, "cgroup does not exist")
|
||||
}
|
||||
var statsx interface{}
|
||||
switch cg := cgx.(type) {
|
||||
case cgroups.Cgroup:
|
||||
stats, err := cg.Stat(cgroups.IgnoreNotExist)
|
||||
if err != nil {
|
||||
return nil, err
|
||||
}
|
||||
statsx = stats
|
||||
case *cgroupsv2.Manager:
|
||||
stats, err := cg.Stat()
|
||||
if err != nil {
|
||||
return nil, err
|
||||
}
|
||||
statsx = stats
|
||||
default:
|
||||
return nil, errdefs.ToGRPCf(errdefs.ErrNotImplemented, "unsupported cgroup type %T", cg)
|
||||
}
|
||||
data, err := typeurl.MarshalAny(statsx)
|
||||
if err != nil {
|
||||
return nil, err
|
||||
}
|
||||
return &taskAPI.StatsResponse{
|
||||
Stats: data,
|
||||
}, nil
|
||||
}
|
||||
|
||||
func (s *service) processExits() {
|
||||
for e := range s.ec {
|
||||
s.checkProcesses(e)
|
||||
}
|
||||
}
|
||||
|
||||
func (s *service) send(evt interface{}) {
|
||||
s.events <- evt
|
||||
}
|
||||
|
||||
func (s *service) sendL(evt interface{}) {
|
||||
s.eventSendMu.Lock()
|
||||
s.events <- evt
|
||||
s.eventSendMu.Unlock()
|
||||
}
|
||||
|
||||
func (s *service) checkProcesses(e runcC.Exit) {
|
||||
s.mu.Lock()
|
||||
defer s.mu.Unlock()
|
||||
|
||||
for _, container := range s.containers {
|
||||
if !container.HasPid(e.Pid) {
|
||||
continue
|
||||
}
|
||||
|
||||
for _, p := range container.All() {
|
||||
if p.Pid() != e.Pid {
|
||||
continue
|
||||
}
|
||||
|
||||
if ip, ok := p.(*process.Init); ok {
|
||||
// Ensure all children are killed
|
||||
if runc.ShouldKillAllOnExit(s.context, container.Bundle) {
|
||||
if err := ip.KillAll(s.context); err != nil {
|
||||
logrus.WithError(err).WithField("id", ip.ID()).
|
||||
Error("failed to kill init's children")
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
p.SetExited(e.Status)
|
||||
s.sendL(&eventstypes.TaskExit{
|
||||
ContainerID: container.ID,
|
||||
ID: p.ID(),
|
||||
Pid: uint32(e.Pid),
|
||||
ExitStatus: uint32(e.Status),
|
||||
ExitedAt: p.ExitedAt(),
|
||||
})
|
||||
return
|
||||
}
|
||||
return
|
||||
}
|
||||
}
|
||||
|
||||
func (s *service) getContainerPids(ctx context.Context, id string) ([]uint32, error) {
|
||||
container, err := s.getContainer(id)
|
||||
if err != nil {
|
||||
return nil, err
|
||||
}
|
||||
p, err := container.Process("")
|
||||
if err != nil {
|
||||
return nil, errdefs.ToGRPC(err)
|
||||
}
|
||||
ps, err := p.(*process.Init).Runtime().Ps(ctx, id)
|
||||
if err != nil {
|
||||
return nil, err
|
||||
}
|
||||
pids := make([]uint32, 0, len(ps))
|
||||
for _, pid := range ps {
|
||||
pids = append(pids, uint32(pid))
|
||||
}
|
||||
return pids, nil
|
||||
}
|
||||
|
||||
func (s *service) forward(ctx context.Context, publisher shim.Publisher) {
|
||||
ns, _ := namespaces.Namespace(ctx)
|
||||
ctx = namespaces.WithNamespace(context.Background(), ns)
|
||||
for e := range s.events {
|
||||
err := publisher.Publish(ctx, runc.GetTopic(e), e)
|
||||
if err != nil {
|
||||
logrus.WithError(err).Error("post event")
|
||||
}
|
||||
}
|
||||
publisher.Close()
|
||||
}
|
||||
|
||||
func (s *service) getContainer(id string) (*runc.Container, error) {
|
||||
s.mu.Lock()
|
||||
container := s.containers[id]
|
||||
s.mu.Unlock()
|
||||
if container == nil {
|
||||
return nil, errdefs.ToGRPCf(errdefs.ErrNotFound, "container not created")
|
||||
}
|
||||
return container, nil
|
||||
}
|
||||
|
||||
// initialize a single epoll fd to manage our consoles. `initPlatform` should
|
||||
// only be called once.
|
||||
func (s *service) initPlatform() error {
|
||||
if s.platform != nil {
|
||||
return nil
|
||||
}
|
||||
p, err := runc.NewPlatform()
|
||||
if err != nil {
|
||||
return err
|
||||
}
|
||||
s.platform = p
|
||||
s.shutdown.RegisterCallback(func(context.Context) error { return s.platform.Close() })
|
||||
return nil
|
||||
}
|
||||
@ -21,824 +21,59 @@ package v2
|
||||
|
||||
import (
|
||||
"context"
|
||||
"encoding/json"
|
||||
"io"
|
||||
"os"
|
||||
"path/filepath"
|
||||
goruntime "runtime"
|
||||
"sync"
|
||||
"syscall"
|
||||
"time"
|
||||
|
||||
"github.com/containerd/cgroups"
|
||||
cgroupsv2 "github.com/containerd/cgroups/v2"
|
||||
eventstypes "github.com/containerd/containerd/api/events"
|
||||
"github.com/containerd/containerd/api/types/task"
|
||||
"github.com/containerd/containerd/errdefs"
|
||||
"github.com/containerd/containerd/mount"
|
||||
"github.com/containerd/containerd/namespaces"
|
||||
"github.com/containerd/containerd/pkg/oom"
|
||||
oomv1 "github.com/containerd/containerd/pkg/oom/v1"
|
||||
oomv2 "github.com/containerd/containerd/pkg/oom/v2"
|
||||
"github.com/containerd/containerd/pkg/process"
|
||||
"github.com/containerd/containerd/pkg/schedcore"
|
||||
"github.com/containerd/containerd/pkg/stdio"
|
||||
"github.com/containerd/containerd/pkg/userns"
|
||||
"github.com/containerd/containerd/runtime/v2/runc"
|
||||
"github.com/containerd/containerd/runtime/v2/runc/options"
|
||||
"github.com/containerd/containerd/pkg/shutdown"
|
||||
"github.com/containerd/containerd/runtime/v2/runc/manager"
|
||||
"github.com/containerd/containerd/runtime/v2/runc/task"
|
||||
"github.com/containerd/containerd/runtime/v2/shim"
|
||||
taskAPI "github.com/containerd/containerd/runtime/v2/task"
|
||||
"github.com/containerd/containerd/sys/reaper"
|
||||
runcC "github.com/containerd/go-runc"
|
||||
"github.com/containerd/typeurl"
|
||||
"github.com/gogo/protobuf/proto"
|
||||
ptypes "github.com/gogo/protobuf/types"
|
||||
"github.com/pkg/errors"
|
||||
"github.com/sirupsen/logrus"
|
||||
exec "golang.org/x/sys/execabs"
|
||||
"golang.org/x/sys/unix"
|
||||
shimapi "github.com/containerd/containerd/runtime/v2/task"
|
||||
)
|
||||
|
||||
var (
|
||||
_ = (taskAPI.TaskService)(&service{})
|
||||
empty = &ptypes.Empty{}
|
||||
)
|
||||
// TODO(2.0): Remove this package
|
||||
|
||||
// group labels specifies how the shim groups services.
|
||||
// currently supports a runc.v2 specific .group label and the
|
||||
// standard k8s pod label. Order matters in this list
|
||||
var groupLabels = []string{
|
||||
"io.containerd.runc.v2.group",
|
||||
"io.kubernetes.cri.sandbox-id",
|
||||
}
|
||||
|
||||
type spec struct {
|
||||
Annotations map[string]string `json:"annotations,omitempty"`
|
||||
}
|
||||
|
||||
// New returns a new shim service that can be used via GRPC
|
||||
func New(ctx context.Context, id string, publisher shim.Publisher, shutdown func()) (shim.Shim, error) {
|
||||
var (
|
||||
ep oom.Watcher
|
||||
err error
|
||||
)
|
||||
if cgroups.Mode() == cgroups.Unified {
|
||||
ep, err = oomv2.New(publisher)
|
||||
} else {
|
||||
ep, err = oomv1.New(publisher)
|
||||
}
|
||||
if err != nil {
|
||||
return nil, err
|
||||
}
|
||||
go ep.Run(ctx)
|
||||
s := &service{
|
||||
id: id,
|
||||
context: ctx,
|
||||
events: make(chan interface{}, 128),
|
||||
ec: reaper.Default.Subscribe(),
|
||||
ep: ep,
|
||||
cancel: shutdown,
|
||||
containers: make(map[string]*runc.Container),
|
||||
}
|
||||
go s.processExits()
|
||||
runcC.Monitor = reaper.Default
|
||||
if err := s.initPlatform(); err != nil {
|
||||
shutdown()
|
||||
return nil, errors.Wrap(err, "failed to initialized platform behavior")
|
||||
}
|
||||
go s.forward(ctx, publisher)
|
||||
|
||||
if address, err := shim.ReadAddress("address"); err == nil {
|
||||
s.shimAddress = address
|
||||
}
|
||||
return s, nil
|
||||
}
|
||||
|
||||
// service is the shim implementation of a remote shim over GRPC
|
||||
type service struct {
|
||||
mu sync.Mutex
|
||||
eventSendMu sync.Mutex
|
||||
|
||||
context context.Context
|
||||
events chan interface{}
|
||||
platform stdio.Platform
|
||||
ec chan runcC.Exit
|
||||
ep oom.Watcher
|
||||
|
||||
// id only used in cleanup case
|
||||
type shimTaskManager struct {
|
||||
shimapi.TaskService
|
||||
id string
|
||||
|
||||
containers map[string]*runc.Container
|
||||
|
||||
shimAddress string
|
||||
cancel func()
|
||||
manager shim.Manager
|
||||
}
|
||||
|
||||
func newCommand(ctx context.Context, id, containerdBinary, containerdAddress, containerdTTRPCAddress string) (*exec.Cmd, error) {
|
||||
ns, err := namespaces.NamespaceRequired(ctx)
|
||||
func (stm *shimTaskManager) Cleanup(ctx context.Context) (*shimapi.DeleteResponse, error) {
|
||||
ss, err := stm.manager.Stop(ctx, stm.id)
|
||||
if err != nil {
|
||||
return nil, err
|
||||
}
|
||||
self, err := os.Executable()
|
||||
if err != nil {
|
||||
return nil, err
|
||||
}
|
||||
cwd, err := os.Getwd()
|
||||
if err != nil {
|
||||
return nil, err
|
||||
}
|
||||
args := []string{
|
||||
"-namespace", ns,
|
||||
"-id", id,
|
||||
"-address", containerdAddress,
|
||||
}
|
||||
cmd := exec.Command(self, args...)
|
||||
cmd.Dir = cwd
|
||||
cmd.Env = append(os.Environ(), "GOMAXPROCS=4")
|
||||
cmd.SysProcAttr = &syscall.SysProcAttr{
|
||||
Setpgid: true,
|
||||
}
|
||||
return cmd, nil
|
||||
}
|
||||
|
||||
func readSpec() (*spec, error) {
|
||||
f, err := os.Open("config.json")
|
||||
if err != nil {
|
||||
return nil, err
|
||||
}
|
||||
defer f.Close()
|
||||
var s spec
|
||||
if err := json.NewDecoder(f).Decode(&s); err != nil {
|
||||
return nil, err
|
||||
}
|
||||
return &s, nil
|
||||
}
|
||||
|
||||
func (s *service) StartShim(ctx context.Context, opts shim.StartOpts) (_ string, retErr error) {
|
||||
cmd, err := newCommand(ctx, opts.ID, opts.ContainerdBinary, opts.Address, opts.TTRPCAddress)
|
||||
if err != nil {
|
||||
return "", err
|
||||
}
|
||||
grouping := opts.ID
|
||||
spec, err := readSpec()
|
||||
if err != nil {
|
||||
return "", err
|
||||
}
|
||||
for _, group := range groupLabels {
|
||||
if groupID, ok := spec.Annotations[group]; ok {
|
||||
grouping = groupID
|
||||
break
|
||||
}
|
||||
}
|
||||
address, err := shim.SocketAddress(ctx, opts.Address, grouping)
|
||||
if err != nil {
|
||||
return "", err
|
||||
}
|
||||
|
||||
socket, err := shim.NewSocket(address)
|
||||
if err != nil {
|
||||
// the only time where this would happen is if there is a bug and the socket
|
||||
// was not cleaned up in the cleanup method of the shim or we are using the
|
||||
// grouping functionality where the new process should be run with the same
|
||||
// shim as an existing container
|
||||
if !shim.SocketEaddrinuse(err) {
|
||||
return "", errors.Wrap(err, "create new shim socket")
|
||||
}
|
||||
if shim.CanConnect(address) {
|
||||
if err := shim.WriteAddress("address", address); err != nil {
|
||||
return "", errors.Wrap(err, "write existing socket for shim")
|
||||
}
|
||||
return address, nil
|
||||
}
|
||||
if err := shim.RemoveSocket(address); err != nil {
|
||||
return "", errors.Wrap(err, "remove pre-existing socket")
|
||||
}
|
||||
if socket, err = shim.NewSocket(address); err != nil {
|
||||
return "", errors.Wrap(err, "try create new shim socket 2x")
|
||||
}
|
||||
}
|
||||
defer func() {
|
||||
if retErr != nil {
|
||||
socket.Close()
|
||||
_ = shim.RemoveSocket(address)
|
||||
}
|
||||
}()
|
||||
|
||||
// make sure that reexec shim-v2 binary use the value if need
|
||||
if err := shim.WriteAddress("address", address); err != nil {
|
||||
return "", err
|
||||
}
|
||||
|
||||
f, err := socket.File()
|
||||
if err != nil {
|
||||
return "", err
|
||||
}
|
||||
|
||||
cmd.ExtraFiles = append(cmd.ExtraFiles, f)
|
||||
|
||||
goruntime.LockOSThread()
|
||||
if os.Getenv("SCHED_CORE") != "" {
|
||||
if err := schedcore.Create(schedcore.ProcessGroup); err != nil {
|
||||
return "", errors.Wrap(err, "enable sched core support")
|
||||
}
|
||||
}
|
||||
|
||||
if err := cmd.Start(); err != nil {
|
||||
f.Close()
|
||||
return "", err
|
||||
}
|
||||
|
||||
goruntime.UnlockOSThread()
|
||||
|
||||
defer func() {
|
||||
if retErr != nil {
|
||||
cmd.Process.Kill()
|
||||
}
|
||||
}()
|
||||
// make sure to wait after start
|
||||
go cmd.Wait()
|
||||
if data, err := io.ReadAll(os.Stdin); err == nil {
|
||||
if len(data) > 0 {
|
||||
var any ptypes.Any
|
||||
if err := proto.Unmarshal(data, &any); err != nil {
|
||||
return "", err
|
||||
}
|
||||
v, err := typeurl.UnmarshalAny(&any)
|
||||
if err != nil {
|
||||
return "", err
|
||||
}
|
||||
if opts, ok := v.(*options.Options); ok {
|
||||
if opts.ShimCgroup != "" {
|
||||
if cgroups.Mode() == cgroups.Unified {
|
||||
cg, err := cgroupsv2.LoadManager("/sys/fs/cgroup", opts.ShimCgroup)
|
||||
if err != nil {
|
||||
return "", errors.Wrapf(err, "failed to load cgroup %s", opts.ShimCgroup)
|
||||
}
|
||||
if err := cg.AddProc(uint64(cmd.Process.Pid)); err != nil {
|
||||
return "", errors.Wrapf(err, "failed to join cgroup %s", opts.ShimCgroup)
|
||||
}
|
||||
} else {
|
||||
cg, err := cgroups.Load(cgroups.V1, cgroups.StaticPath(opts.ShimCgroup))
|
||||
if err != nil {
|
||||
return "", errors.Wrapf(err, "failed to load cgroup %s", opts.ShimCgroup)
|
||||
}
|
||||
if err := cg.Add(cgroups.Process{
|
||||
Pid: cmd.Process.Pid,
|
||||
}); err != nil {
|
||||
return "", errors.Wrapf(err, "failed to join cgroup %s", opts.ShimCgroup)
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
if err := shim.AdjustOOMScore(cmd.Process.Pid); err != nil {
|
||||
return "", errors.Wrap(err, "failed to adjust OOM score for shim")
|
||||
}
|
||||
return address, nil
|
||||
}
|
||||
|
||||
func (s *service) Cleanup(ctx context.Context) (*taskAPI.DeleteResponse, error) {
|
||||
cwd, err := os.Getwd()
|
||||
if err != nil {
|
||||
return nil, err
|
||||
}
|
||||
|
||||
path := filepath.Join(filepath.Dir(cwd), s.id)
|
||||
ns, err := namespaces.NamespaceRequired(ctx)
|
||||
if err != nil {
|
||||
return nil, err
|
||||
}
|
||||
runtime, err := runc.ReadRuntime(path)
|
||||
if err != nil {
|
||||
return nil, err
|
||||
}
|
||||
opts, err := runc.ReadOptions(path)
|
||||
if err != nil {
|
||||
return nil, err
|
||||
}
|
||||
root := process.RuncRoot
|
||||
if opts != nil && opts.Root != "" {
|
||||
root = opts.Root
|
||||
}
|
||||
|
||||
r := process.NewRunc(root, path, ns, runtime, "", false)
|
||||
if err := r.Delete(ctx, s.id, &runcC.DeleteOpts{
|
||||
Force: true,
|
||||
}); err != nil {
|
||||
logrus.WithError(err).Warn("failed to remove runc container")
|
||||
}
|
||||
if err := mount.UnmountAll(filepath.Join(path, "rootfs"), 0); err != nil {
|
||||
logrus.WithError(err).Warn("failed to cleanup rootfs mount")
|
||||
}
|
||||
return &taskAPI.DeleteResponse{
|
||||
ExitedAt: time.Now(),
|
||||
ExitStatus: 128 + uint32(unix.SIGKILL),
|
||||
return &shimapi.DeleteResponse{
|
||||
Pid: uint32(ss.Pid),
|
||||
ExitStatus: uint32(ss.ExitStatus),
|
||||
ExitedAt: ss.ExitedAt,
|
||||
}, nil
|
||||
}
|
||||
|
||||
// Create a new initial process and container with the underlying OCI runtime
|
||||
func (s *service) Create(ctx context.Context, r *taskAPI.CreateTaskRequest) (_ *taskAPI.CreateTaskResponse, err error) {
|
||||
s.mu.Lock()
|
||||
defer s.mu.Unlock()
|
||||
|
||||
container, err := runc.NewContainer(ctx, s.platform, r)
|
||||
if err != nil {
|
||||
return nil, err
|
||||
}
|
||||
|
||||
s.containers[r.ID] = container
|
||||
|
||||
s.send(&eventstypes.TaskCreate{
|
||||
ContainerID: r.ID,
|
||||
Bundle: r.Bundle,
|
||||
Rootfs: r.Rootfs,
|
||||
IO: &eventstypes.TaskIO{
|
||||
Stdin: r.Stdin,
|
||||
Stdout: r.Stdout,
|
||||
Stderr: r.Stderr,
|
||||
Terminal: r.Terminal,
|
||||
},
|
||||
Checkpoint: r.Checkpoint,
|
||||
Pid: uint32(container.Pid()),
|
||||
})
|
||||
|
||||
return &taskAPI.CreateTaskResponse{
|
||||
Pid: uint32(container.Pid()),
|
||||
}, nil
|
||||
func (stm *shimTaskManager) StartShim(ctx context.Context, opts shim.StartOpts) (string, error) {
|
||||
return stm.manager.Start(ctx, opts.ID, opts)
|
||||
}
|
||||
|
||||
// Start a process
|
||||
func (s *service) Start(ctx context.Context, r *taskAPI.StartRequest) (*taskAPI.StartResponse, error) {
|
||||
container, err := s.getContainer(r.ID)
|
||||
if err != nil {
|
||||
return nil, err
|
||||
}
|
||||
|
||||
// hold the send lock so that the start events are sent before any exit events in the error case
|
||||
s.eventSendMu.Lock()
|
||||
p, err := container.Start(ctx, r)
|
||||
if err != nil {
|
||||
s.eventSendMu.Unlock()
|
||||
return nil, errdefs.ToGRPC(err)
|
||||
}
|
||||
|
||||
switch r.ExecID {
|
||||
case "":
|
||||
switch cg := container.Cgroup().(type) {
|
||||
case cgroups.Cgroup:
|
||||
if err := s.ep.Add(container.ID, cg); err != nil {
|
||||
logrus.WithError(err).Error("add cg to OOM monitor")
|
||||
}
|
||||
case *cgroupsv2.Manager:
|
||||
allControllers, err := cg.RootControllers()
|
||||
if err != nil {
|
||||
logrus.WithError(err).Error("failed to get root controllers")
|
||||
} else {
|
||||
if err := cg.ToggleControllers(allControllers, cgroupsv2.Enable); err != nil {
|
||||
if userns.RunningInUserNS() {
|
||||
logrus.WithError(err).Debugf("failed to enable controllers (%v)", allControllers)
|
||||
} else {
|
||||
logrus.WithError(err).Errorf("failed to enable controllers (%v)", allControllers)
|
||||
}
|
||||
}
|
||||
}
|
||||
if err := s.ep.Add(container.ID, cg); err != nil {
|
||||
logrus.WithError(err).Error("add cg to OOM monitor")
|
||||
}
|
||||
}
|
||||
|
||||
s.send(&eventstypes.TaskStart{
|
||||
ContainerID: container.ID,
|
||||
Pid: uint32(p.Pid()),
|
||||
})
|
||||
default:
|
||||
s.send(&eventstypes.TaskExecStarted{
|
||||
ContainerID: container.ID,
|
||||
ExecID: r.ExecID,
|
||||
Pid: uint32(p.Pid()),
|
||||
})
|
||||
}
|
||||
s.eventSendMu.Unlock()
|
||||
return &taskAPI.StartResponse{
|
||||
Pid: uint32(p.Pid()),
|
||||
}, nil
|
||||
}
|
||||
|
||||
// Delete the initial process and container
|
||||
func (s *service) Delete(ctx context.Context, r *taskAPI.DeleteRequest) (*taskAPI.DeleteResponse, error) {
|
||||
container, err := s.getContainer(r.ID)
|
||||
if err != nil {
|
||||
return nil, err
|
||||
}
|
||||
p, err := container.Delete(ctx, r)
|
||||
if err != nil {
|
||||
return nil, errdefs.ToGRPC(err)
|
||||
}
|
||||
// if we deleted an init task, send the task delete event
|
||||
if r.ExecID == "" {
|
||||
s.mu.Lock()
|
||||
delete(s.containers, r.ID)
|
||||
s.mu.Unlock()
|
||||
s.send(&eventstypes.TaskDelete{
|
||||
ContainerID: container.ID,
|
||||
Pid: uint32(p.Pid()),
|
||||
ExitStatus: uint32(p.ExitStatus()),
|
||||
ExitedAt: p.ExitedAt(),
|
||||
})
|
||||
}
|
||||
return &taskAPI.DeleteResponse{
|
||||
ExitStatus: uint32(p.ExitStatus()),
|
||||
ExitedAt: p.ExitedAt(),
|
||||
Pid: uint32(p.Pid()),
|
||||
}, nil
|
||||
}
|
||||
|
||||
// Exec an additional process inside the container
|
||||
func (s *service) Exec(ctx context.Context, r *taskAPI.ExecProcessRequest) (*ptypes.Empty, error) {
|
||||
container, err := s.getContainer(r.ID)
|
||||
if err != nil {
|
||||
return nil, err
|
||||
}
|
||||
ok, cancel := container.ReserveProcess(r.ExecID)
|
||||
// New returns a new shim service that can be used for
|
||||
// - serving the task service over grpc/ttrpc
|
||||
// - shim management
|
||||
// This function is deprecated in favor direct creation
|
||||
// of shim manager and registering task service via plugins.
|
||||
func New(ctx context.Context, id string, publisher shim.Publisher, fn func()) (shim.Shim, error) {
|
||||
sd, ok := ctx.(shutdown.Service)
|
||||
if !ok {
|
||||
return nil, errdefs.ToGRPCf(errdefs.ErrAlreadyExists, "id %s", r.ExecID)
|
||||
}
|
||||
process, err := container.Exec(ctx, r)
|
||||
if err != nil {
|
||||
cancel()
|
||||
return nil, errdefs.ToGRPC(err)
|
||||
}
|
||||
|
||||
s.send(&eventstypes.TaskExecAdded{
|
||||
ContainerID: container.ID,
|
||||
ExecID: process.ID(),
|
||||
})
|
||||
return empty, nil
|
||||
}
|
||||
|
||||
// ResizePty of a process
|
||||
func (s *service) ResizePty(ctx context.Context, r *taskAPI.ResizePtyRequest) (*ptypes.Empty, error) {
|
||||
container, err := s.getContainer(r.ID)
|
||||
if err != nil {
|
||||
return nil, err
|
||||
}
|
||||
if err := container.ResizePty(ctx, r); err != nil {
|
||||
return nil, errdefs.ToGRPC(err)
|
||||
}
|
||||
return empty, nil
|
||||
}
|
||||
|
||||
// State returns runtime state information for a process
|
||||
func (s *service) State(ctx context.Context, r *taskAPI.StateRequest) (*taskAPI.StateResponse, error) {
|
||||
container, err := s.getContainer(r.ID)
|
||||
if err != nil {
|
||||
return nil, err
|
||||
}
|
||||
p, err := container.Process(r.ExecID)
|
||||
if err != nil {
|
||||
return nil, errdefs.ToGRPC(err)
|
||||
}
|
||||
st, err := p.Status(ctx)
|
||||
if err != nil {
|
||||
return nil, err
|
||||
}
|
||||
status := task.StatusUnknown
|
||||
switch st {
|
||||
case "created":
|
||||
status = task.StatusCreated
|
||||
case "running":
|
||||
status = task.StatusRunning
|
||||
case "stopped":
|
||||
status = task.StatusStopped
|
||||
case "paused":
|
||||
status = task.StatusPaused
|
||||
case "pausing":
|
||||
status = task.StatusPausing
|
||||
}
|
||||
sio := p.Stdio()
|
||||
return &taskAPI.StateResponse{
|
||||
ID: p.ID(),
|
||||
Bundle: container.Bundle,
|
||||
Pid: uint32(p.Pid()),
|
||||
Status: status,
|
||||
Stdin: sio.Stdin,
|
||||
Stdout: sio.Stdout,
|
||||
Stderr: sio.Stderr,
|
||||
Terminal: sio.Terminal,
|
||||
ExitStatus: uint32(p.ExitStatus()),
|
||||
ExitedAt: p.ExitedAt(),
|
||||
}, nil
|
||||
}
|
||||
|
||||
// Pause the container
|
||||
func (s *service) Pause(ctx context.Context, r *taskAPI.PauseRequest) (*ptypes.Empty, error) {
|
||||
container, err := s.getContainer(r.ID)
|
||||
if err != nil {
|
||||
return nil, err
|
||||
}
|
||||
if err := container.Pause(ctx); err != nil {
|
||||
return nil, errdefs.ToGRPC(err)
|
||||
}
|
||||
s.send(&eventstypes.TaskPaused{
|
||||
ContainerID: container.ID,
|
||||
})
|
||||
return empty, nil
|
||||
}
|
||||
|
||||
// Resume the container
|
||||
func (s *service) Resume(ctx context.Context, r *taskAPI.ResumeRequest) (*ptypes.Empty, error) {
|
||||
container, err := s.getContainer(r.ID)
|
||||
if err != nil {
|
||||
return nil, err
|
||||
}
|
||||
if err := container.Resume(ctx); err != nil {
|
||||
return nil, errdefs.ToGRPC(err)
|
||||
}
|
||||
s.send(&eventstypes.TaskResumed{
|
||||
ContainerID: container.ID,
|
||||
})
|
||||
return empty, nil
|
||||
}
|
||||
|
||||
// Kill a process with the provided signal
|
||||
func (s *service) Kill(ctx context.Context, r *taskAPI.KillRequest) (*ptypes.Empty, error) {
|
||||
container, err := s.getContainer(r.ID)
|
||||
if err != nil {
|
||||
return nil, err
|
||||
}
|
||||
if err := container.Kill(ctx, r); err != nil {
|
||||
return nil, errdefs.ToGRPC(err)
|
||||
}
|
||||
return empty, nil
|
||||
}
|
||||
|
||||
// Pids returns all pids inside the container
|
||||
func (s *service) Pids(ctx context.Context, r *taskAPI.PidsRequest) (*taskAPI.PidsResponse, error) {
|
||||
container, err := s.getContainer(r.ID)
|
||||
if err != nil {
|
||||
return nil, err
|
||||
}
|
||||
pids, err := s.getContainerPids(ctx, r.ID)
|
||||
if err != nil {
|
||||
return nil, errdefs.ToGRPC(err)
|
||||
}
|
||||
var processes []*task.ProcessInfo
|
||||
for _, pid := range pids {
|
||||
pInfo := task.ProcessInfo{
|
||||
Pid: pid,
|
||||
}
|
||||
for _, p := range container.ExecdProcesses() {
|
||||
if p.Pid() == int(pid) {
|
||||
d := &options.ProcessDetails{
|
||||
ExecID: p.ID(),
|
||||
}
|
||||
a, err := typeurl.MarshalAny(d)
|
||||
if err != nil {
|
||||
return nil, errors.Wrapf(err, "failed to marshal process %d info", pid)
|
||||
}
|
||||
pInfo.Info = a
|
||||
break
|
||||
}
|
||||
}
|
||||
processes = append(processes, &pInfo)
|
||||
}
|
||||
return &taskAPI.PidsResponse{
|
||||
Processes: processes,
|
||||
}, nil
|
||||
}
|
||||
|
||||
// CloseIO of a process
|
||||
func (s *service) CloseIO(ctx context.Context, r *taskAPI.CloseIORequest) (*ptypes.Empty, error) {
|
||||
container, err := s.getContainer(r.ID)
|
||||
if err != nil {
|
||||
return nil, err
|
||||
}
|
||||
if err := container.CloseIO(ctx, r); err != nil {
|
||||
return nil, err
|
||||
}
|
||||
return empty, nil
|
||||
}
|
||||
|
||||
// Checkpoint the container
|
||||
func (s *service) Checkpoint(ctx context.Context, r *taskAPI.CheckpointTaskRequest) (*ptypes.Empty, error) {
|
||||
container, err := s.getContainer(r.ID)
|
||||
if err != nil {
|
||||
return nil, err
|
||||
}
|
||||
if err := container.Checkpoint(ctx, r); err != nil {
|
||||
return nil, errdefs.ToGRPC(err)
|
||||
}
|
||||
return empty, nil
|
||||
}
|
||||
|
||||
// Update a running container
|
||||
func (s *service) Update(ctx context.Context, r *taskAPI.UpdateTaskRequest) (*ptypes.Empty, error) {
|
||||
container, err := s.getContainer(r.ID)
|
||||
if err != nil {
|
||||
return nil, err
|
||||
}
|
||||
if err := container.Update(ctx, r); err != nil {
|
||||
return nil, errdefs.ToGRPC(err)
|
||||
}
|
||||
return empty, nil
|
||||
}
|
||||
|
||||
// Wait for a process to exit
|
||||
func (s *service) Wait(ctx context.Context, r *taskAPI.WaitRequest) (*taskAPI.WaitResponse, error) {
|
||||
container, err := s.getContainer(r.ID)
|
||||
if err != nil {
|
||||
return nil, err
|
||||
}
|
||||
p, err := container.Process(r.ExecID)
|
||||
if err != nil {
|
||||
return nil, errdefs.ToGRPC(err)
|
||||
}
|
||||
p.Wait()
|
||||
|
||||
return &taskAPI.WaitResponse{
|
||||
ExitStatus: uint32(p.ExitStatus()),
|
||||
ExitedAt: p.ExitedAt(),
|
||||
}, nil
|
||||
}
|
||||
|
||||
// Connect returns shim information such as the shim's pid
|
||||
func (s *service) Connect(ctx context.Context, r *taskAPI.ConnectRequest) (*taskAPI.ConnectResponse, error) {
|
||||
var pid int
|
||||
if container, err := s.getContainer(r.ID); err == nil {
|
||||
pid = container.Pid()
|
||||
}
|
||||
return &taskAPI.ConnectResponse{
|
||||
ShimPid: uint32(os.Getpid()),
|
||||
TaskPid: uint32(pid),
|
||||
}, nil
|
||||
}
|
||||
|
||||
func (s *service) Shutdown(ctx context.Context, r *taskAPI.ShutdownRequest) (*ptypes.Empty, error) {
|
||||
s.mu.Lock()
|
||||
defer s.mu.Unlock()
|
||||
|
||||
// return out if the shim is still servicing containers
|
||||
if len(s.containers) > 0 {
|
||||
return empty, nil
|
||||
}
|
||||
|
||||
if s.platform != nil {
|
||||
s.platform.Close()
|
||||
}
|
||||
|
||||
if s.shimAddress != "" {
|
||||
_ = shim.RemoveSocket(s.shimAddress)
|
||||
}
|
||||
|
||||
// please make sure that temporary resource has been cleanup
|
||||
// before shutdown service.
|
||||
s.cancel()
|
||||
close(s.events)
|
||||
return empty, nil
|
||||
}
|
||||
|
||||
func (s *service) Stats(ctx context.Context, r *taskAPI.StatsRequest) (*taskAPI.StatsResponse, error) {
|
||||
container, err := s.getContainer(r.ID)
|
||||
if err != nil {
|
||||
return nil, err
|
||||
}
|
||||
cgx := container.Cgroup()
|
||||
if cgx == nil {
|
||||
return nil, errdefs.ToGRPCf(errdefs.ErrNotFound, "cgroup does not exist")
|
||||
}
|
||||
var statsx interface{}
|
||||
switch cg := cgx.(type) {
|
||||
case cgroups.Cgroup:
|
||||
stats, err := cg.Stat(cgroups.IgnoreNotExist)
|
||||
if err != nil {
|
||||
return nil, err
|
||||
}
|
||||
statsx = stats
|
||||
case *cgroupsv2.Manager:
|
||||
stats, err := cg.Stat()
|
||||
if err != nil {
|
||||
return nil, err
|
||||
}
|
||||
statsx = stats
|
||||
default:
|
||||
return nil, errdefs.ToGRPCf(errdefs.ErrNotImplemented, "unsupported cgroup type %T", cg)
|
||||
}
|
||||
data, err := typeurl.MarshalAny(statsx)
|
||||
if err != nil {
|
||||
return nil, err
|
||||
}
|
||||
return &taskAPI.StatsResponse{
|
||||
Stats: data,
|
||||
}, nil
|
||||
}
|
||||
|
||||
func (s *service) processExits() {
|
||||
for e := range s.ec {
|
||||
s.checkProcesses(e)
|
||||
}
|
||||
}
|
||||
|
||||
func (s *service) send(evt interface{}) {
|
||||
s.events <- evt
|
||||
}
|
||||
|
||||
func (s *service) sendL(evt interface{}) {
|
||||
s.eventSendMu.Lock()
|
||||
s.events <- evt
|
||||
s.eventSendMu.Unlock()
|
||||
}
|
||||
|
||||
func (s *service) checkProcesses(e runcC.Exit) {
|
||||
s.mu.Lock()
|
||||
defer s.mu.Unlock()
|
||||
|
||||
for _, container := range s.containers {
|
||||
if !container.HasPid(e.Pid) {
|
||||
continue
|
||||
}
|
||||
|
||||
for _, p := range container.All() {
|
||||
if p.Pid() != e.Pid {
|
||||
continue
|
||||
}
|
||||
|
||||
if ip, ok := p.(*process.Init); ok {
|
||||
// Ensure all children are killed
|
||||
if runc.ShouldKillAllOnExit(s.context, container.Bundle) {
|
||||
if err := ip.KillAll(s.context); err != nil {
|
||||
logrus.WithError(err).WithField("id", ip.ID()).
|
||||
Error("failed to kill init's children")
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
p.SetExited(e.Status)
|
||||
s.sendL(&eventstypes.TaskExit{
|
||||
ContainerID: container.ID,
|
||||
ID: p.ID(),
|
||||
Pid: uint32(e.Pid),
|
||||
ExitStatus: uint32(e.Status),
|
||||
ExitedAt: p.ExitedAt(),
|
||||
})
|
||||
return
|
||||
}
|
||||
return
|
||||
}
|
||||
}
|
||||
|
||||
func (s *service) getContainerPids(ctx context.Context, id string) ([]uint32, error) {
|
||||
container, err := s.getContainer(id)
|
||||
if err != nil {
|
||||
return nil, err
|
||||
}
|
||||
p, err := container.Process("")
|
||||
if err != nil {
|
||||
return nil, errdefs.ToGRPC(err)
|
||||
}
|
||||
ps, err := p.(*process.Init).Runtime().Ps(ctx, id)
|
||||
if err != nil {
|
||||
return nil, err
|
||||
}
|
||||
pids := make([]uint32, 0, len(ps))
|
||||
for _, pid := range ps {
|
||||
pids = append(pids, uint32(pid))
|
||||
}
|
||||
return pids, nil
|
||||
}
|
||||
|
||||
func (s *service) forward(ctx context.Context, publisher shim.Publisher) {
|
||||
ns, _ := namespaces.Namespace(ctx)
|
||||
ctx = namespaces.WithNamespace(context.Background(), ns)
|
||||
for e := range s.events {
|
||||
err := publisher.Publish(ctx, runc.GetTopic(e), e)
|
||||
if err != nil {
|
||||
logrus.WithError(err).Error("post event")
|
||||
}
|
||||
}
|
||||
publisher.Close()
|
||||
}
|
||||
|
||||
func (s *service) getContainer(id string) (*runc.Container, error) {
|
||||
s.mu.Lock()
|
||||
container := s.containers[id]
|
||||
s.mu.Unlock()
|
||||
if container == nil {
|
||||
return nil, errdefs.ToGRPCf(errdefs.ErrNotFound, "container not created")
|
||||
}
|
||||
return container, nil
|
||||
}
|
||||
|
||||
// initialize a single epoll fd to manage our consoles. `initPlatform` should
|
||||
// only be called once.
|
||||
func (s *service) initPlatform() error {
|
||||
if s.platform != nil {
|
||||
ctx, sd = shutdown.WithShutdown(ctx)
|
||||
sd.RegisterCallback(func(context.Context) error {
|
||||
fn()
|
||||
return nil
|
||||
})
|
||||
}
|
||||
p, err := runc.NewPlatform()
|
||||
ts, err := task.NewTaskService(ctx, publisher, sd)
|
||||
if err != nil {
|
||||
return err
|
||||
return nil, err
|
||||
}
|
||||
s.platform = p
|
||||
return nil
|
||||
return &shimTaskManager{
|
||||
TaskService: ts,
|
||||
id: id,
|
||||
manager: manager.NewShimManager("runc"),
|
||||
}, nil
|
||||
}
|
||||
|
||||
@ -30,6 +30,7 @@ import (
|
||||
"github.com/containerd/containerd/events"
|
||||
"github.com/containerd/containerd/log"
|
||||
"github.com/containerd/containerd/namespaces"
|
||||
"github.com/containerd/containerd/pkg/shutdown"
|
||||
"github.com/containerd/containerd/plugin"
|
||||
shimapi "github.com/containerd/containerd/runtime/v2/task"
|
||||
"github.com/containerd/containerd/version"
|
||||
@ -47,21 +48,37 @@ type Publisher interface {
|
||||
|
||||
// StartOpts describes shim start configuration received from containerd
|
||||
type StartOpts struct {
|
||||
ID string
|
||||
ID string // TODO(2.0): Remove ID, passed directly to start for call symmetry
|
||||
ContainerdBinary string
|
||||
Address string
|
||||
TTRPCAddress string
|
||||
}
|
||||
|
||||
type StopStatus struct {
|
||||
Pid int
|
||||
ExitStatus int
|
||||
ExitedAt time.Time
|
||||
}
|
||||
|
||||
// Init func for the creation of a shim server
|
||||
// TODO(2.0): Remove init function
|
||||
type Init func(context.Context, string, Publisher, func()) (Shim, error)
|
||||
|
||||
// Shim server interface
|
||||
// TODO(2.0): Remove unified shim interface
|
||||
type Shim interface {
|
||||
shimapi.TaskService
|
||||
Cleanup(ctx context.Context) (*shimapi.DeleteResponse, error)
|
||||
StartShim(ctx context.Context, opts StartOpts) (string, error)
|
||||
}
|
||||
|
||||
// Manager is the interface which manages the shim process
|
||||
type Manager interface {
|
||||
Name() string
|
||||
Start(ctx context.Context, id string, opts StartOpts) (string, error)
|
||||
Stop(ctx context.Context, id string) (StopStatus, error)
|
||||
}
|
||||
|
||||
// OptsKey is the context key for the Opts value.
|
||||
type OptsKey struct{}
|
||||
|
||||
@ -89,18 +106,18 @@ type ttrpcService interface {
|
||||
}
|
||||
|
||||
type taskService struct {
|
||||
local shimapi.TaskService
|
||||
shimapi.TaskService
|
||||
}
|
||||
|
||||
func (t *taskService) RegisterTTRPC(server *ttrpc.Server) error {
|
||||
shimapi.RegisterTaskService(server, t.local)
|
||||
func (t taskService) RegisterTTRPC(server *ttrpc.Server) error {
|
||||
shimapi.RegisterTaskService(server, t.TaskService)
|
||||
return nil
|
||||
}
|
||||
|
||||
var (
|
||||
debugFlag bool
|
||||
versionFlag bool
|
||||
idFlag string
|
||||
id string
|
||||
namespaceFlag string
|
||||
socketFlag string
|
||||
bundlePath string
|
||||
@ -117,7 +134,7 @@ 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(&id, "id", "", "id of the task")
|
||||
flag.StringVar(&socketFlag, "socket", "", "socket path to serve")
|
||||
flag.StringVar(&bundlePath, "bundle", "", "path to the bundle if not workdir")
|
||||
|
||||
@ -142,36 +159,85 @@ func setRuntime() {
|
||||
}
|
||||
}
|
||||
|
||||
func setLogger(ctx context.Context, id string) error {
|
||||
logrus.SetFormatter(&logrus.TextFormatter{
|
||||
func setLogger(ctx context.Context, id string) (context.Context, error) {
|
||||
l := log.G(ctx)
|
||||
l.Logger.SetFormatter(&logrus.TextFormatter{
|
||||
TimestampFormat: log.RFC3339NanoFixed,
|
||||
FullTimestamp: true,
|
||||
})
|
||||
if debugFlag {
|
||||
logrus.SetLevel(logrus.DebugLevel)
|
||||
l.Logger.SetLevel(logrus.DebugLevel)
|
||||
}
|
||||
f, err := openLog(ctx, id)
|
||||
if err != nil {
|
||||
return err
|
||||
return ctx, err
|
||||
}
|
||||
logrus.SetOutput(f)
|
||||
return nil
|
||||
l.Logger.SetOutput(f)
|
||||
return log.WithLogger(ctx, l), nil
|
||||
}
|
||||
|
||||
// Run initializes and runs a shim server
|
||||
func Run(id string, initFunc Init, opts ...BinaryOpts) {
|
||||
// TODO(2.0): Remove function
|
||||
func Run(name string, initFunc Init, opts ...BinaryOpts) {
|
||||
var config Config
|
||||
for _, o := range opts {
|
||||
o(&config)
|
||||
}
|
||||
|
||||
if err := run(id, initFunc, config); err != nil {
|
||||
fmt.Fprintf(os.Stderr, "%s: %s\n", id, err)
|
||||
ctx := context.Background()
|
||||
ctx = log.WithLogger(ctx, log.G(ctx).WithField("runtime", name))
|
||||
|
||||
if err := run(ctx, nil, initFunc, name, config); err != nil {
|
||||
fmt.Fprintf(os.Stderr, "%s: %s", name, err)
|
||||
os.Exit(1)
|
||||
}
|
||||
}
|
||||
|
||||
func run(id string, initFunc Init, config Config) error {
|
||||
// TODO(2.0): Remove this type
|
||||
type shimToManager struct {
|
||||
shim Shim
|
||||
name string
|
||||
}
|
||||
|
||||
func (stm shimToManager) Name() string {
|
||||
return stm.name
|
||||
}
|
||||
|
||||
func (stm shimToManager) Start(ctx context.Context, id string, opts StartOpts) (string, error) {
|
||||
opts.ID = id
|
||||
return stm.shim.StartShim(ctx, opts)
|
||||
}
|
||||
|
||||
func (stm shimToManager) Stop(ctx context.Context, id string) (StopStatus, error) {
|
||||
// shim must already have id
|
||||
dr, err := stm.shim.Cleanup(ctx)
|
||||
if err != nil {
|
||||
return StopStatus{}, err
|
||||
}
|
||||
return StopStatus{
|
||||
Pid: int(dr.Pid),
|
||||
ExitStatus: int(dr.ExitStatus),
|
||||
ExitedAt: dr.ExitedAt,
|
||||
}, nil
|
||||
}
|
||||
|
||||
// RunManager initialzes and runs a shim server
|
||||
// TODO(2.0): Rename to Run
|
||||
func RunManager(ctx context.Context, manager Manager, opts ...BinaryOpts) {
|
||||
var config Config
|
||||
for _, o := range opts {
|
||||
o(&config)
|
||||
}
|
||||
|
||||
ctx = log.WithLogger(ctx, log.G(ctx).WithField("runtime", manager.Name()))
|
||||
|
||||
if err := run(ctx, manager, nil, "", config); err != nil {
|
||||
fmt.Fprintf(os.Stderr, "%s: %s", manager.Name(), err)
|
||||
os.Exit(1)
|
||||
}
|
||||
}
|
||||
|
||||
func run(ctx context.Context, manager Manager, initFunc Init, name string, config Config) error {
|
||||
parseFlags()
|
||||
if versionFlag {
|
||||
fmt.Printf("%s:\n", os.Args[0])
|
||||
@ -206,28 +272,49 @@ func run(id string, initFunc Init, config Config) error {
|
||||
}
|
||||
defer publisher.Close()
|
||||
|
||||
ctx := namespaces.WithNamespace(context.Background(), namespaceFlag)
|
||||
ctx = namespaces.WithNamespace(ctx, namespaceFlag)
|
||||
ctx = context.WithValue(ctx, OptsKey{}, Opts{BundlePath: bundlePath, Debug: debugFlag})
|
||||
ctx = log.WithLogger(ctx, log.G(ctx).WithField("runtime", id))
|
||||
ctx, cancel := context.WithCancel(ctx)
|
||||
service, err := initFunc(ctx, idFlag, publisher, cancel)
|
||||
ctx, sd := shutdown.WithShutdown(ctx)
|
||||
defer sd.Shutdown()
|
||||
|
||||
if manager == nil {
|
||||
service, err := initFunc(ctx, id, publisher, sd.Shutdown)
|
||||
if err != nil {
|
||||
return err
|
||||
}
|
||||
plugin.Register(&plugin.Registration{
|
||||
Type: plugin.TTRPCPlugin,
|
||||
ID: "task",
|
||||
Requires: []plugin.Type{
|
||||
plugin.EventPlugin,
|
||||
},
|
||||
InitFn: func(ic *plugin.InitContext) (interface{}, error) {
|
||||
return taskService{service}, nil
|
||||
},
|
||||
})
|
||||
manager = shimToManager{
|
||||
shim: service,
|
||||
name: name,
|
||||
}
|
||||
}
|
||||
|
||||
// Handle explicit actions
|
||||
switch action {
|
||||
case "delete":
|
||||
logger := logrus.WithFields(logrus.Fields{
|
||||
logger := log.G(ctx).WithFields(logrus.Fields{
|
||||
"pid": os.Getpid(),
|
||||
"namespace": namespaceFlag,
|
||||
})
|
||||
go handleSignals(ctx, logger, signals)
|
||||
response, err := service.Cleanup(ctx)
|
||||
ss, err := manager.Stop(ctx, id)
|
||||
if err != nil {
|
||||
return err
|
||||
}
|
||||
data, err := proto.Marshal(response)
|
||||
data, err := proto.Marshal(&shimapi.DeleteResponse{
|
||||
Pid: uint32(ss.Pid),
|
||||
ExitStatus: uint32(ss.ExitStatus),
|
||||
ExitedAt: ss.ExitedAt,
|
||||
})
|
||||
if err != nil {
|
||||
return err
|
||||
}
|
||||
@ -237,13 +324,12 @@ func run(id string, initFunc Init, config Config) error {
|
||||
return nil
|
||||
case "start":
|
||||
opts := StartOpts{
|
||||
ID: idFlag,
|
||||
ContainerdBinary: containerdBinaryFlag,
|
||||
Address: addressFlag,
|
||||
TTRPCAddress: ttrpcAddress,
|
||||
}
|
||||
|
||||
address, err := service.StartShim(ctx, opts)
|
||||
address, err := manager.Start(ctx, id, opts)
|
||||
if err != nil {
|
||||
return err
|
||||
}
|
||||
@ -254,11 +340,20 @@ func run(id string, initFunc Init, config Config) error {
|
||||
}
|
||||
|
||||
if !config.NoSetupLogger {
|
||||
if err := setLogger(ctx, idFlag); err != nil {
|
||||
ctx, err = setLogger(ctx, id)
|
||||
if err != nil {
|
||||
return err
|
||||
}
|
||||
}
|
||||
|
||||
plugin.Register(&plugin.Registration{
|
||||
Type: plugin.InternalPlugin,
|
||||
ID: "shutdown",
|
||||
InitFn: func(ic *plugin.InitContext) (interface{}, error) {
|
||||
return sd, nil
|
||||
},
|
||||
})
|
||||
|
||||
// Register event plugin
|
||||
plugin.Register(&plugin.Registration{
|
||||
Type: plugin.EventPlugin,
|
||||
@ -268,17 +363,6 @@ func run(id string, initFunc Init, config Config) error {
|
||||
},
|
||||
})
|
||||
|
||||
// If service is an implementation of the task service, register it as a plugin
|
||||
if ts, ok := service.(shimapi.TaskService); ok {
|
||||
plugin.Register(&plugin.Registration{
|
||||
Type: plugin.TTRPCPlugin,
|
||||
ID: "task",
|
||||
InitFn: func(ic *plugin.InitContext) (interface{}, error) {
|
||||
return &taskService{ts}, nil
|
||||
},
|
||||
})
|
||||
}
|
||||
|
||||
var (
|
||||
initialized = plugin.NewPluginSet()
|
||||
ttrpcServices = []ttrpcService{}
|
||||
@ -345,7 +429,7 @@ func run(id string, initFunc Init, config Config) error {
|
||||
}
|
||||
|
||||
if err := serve(ctx, server, signals); err != nil {
|
||||
if err != context.Canceled {
|
||||
if err != shutdown.ErrShutdown {
|
||||
return err
|
||||
}
|
||||
}
|
||||
@ -383,10 +467,10 @@ func serve(ctx context.Context, server *ttrpc.Server, signals chan os.Signal) er
|
||||
defer l.Close()
|
||||
if err := server.Serve(ctx, l); err != nil &&
|
||||
!strings.Contains(err.Error(), "use of closed network connection") {
|
||||
logrus.WithError(err).Fatal("containerd-shim: ttrpc server failure")
|
||||
log.G(ctx).WithError(err).Fatal("containerd-shim: ttrpc server failure")
|
||||
}
|
||||
}()
|
||||
logger := logrus.WithFields(logrus.Fields{
|
||||
logger := log.G(ctx).WithFields(logrus.Fields{
|
||||
"pid": os.Getpid(),
|
||||
"path": path,
|
||||
"namespace": namespaceFlag,
|
||||
|
||||
Loading…
Reference in New Issue
Block a user