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Update CNI to v0.6.0

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Signed-off-by: Lantao Liu <lantaol@google.com>
This commit is contained in:
Lantao Liu 2017-08-23 01:23:24 +00:00
parent 01137e4591
commit af83d3e1f7
17 changed files with 935 additions and 141 deletions
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2
hack/versions
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@ -1,5 +1,5 @@
RUNC_VERSION=e775f0fba3ea329b8b766451c892c41a3d49594d
CNI_VERSION=v0.4.0
CNI_VERSION=v0.6.0
CONTAINERD_VERSION=938810e706bbcdbcb937ce63ba3e7c9ca329af64
CRITEST_VERSION=74bbd4e142f752f13c648d9dde23defed3e472a2
KUBERNETES_VERSION=493ee8b28560c118cebd2165ba9ef0959cfa2bc3

57
vendor/github.com/containernetworking/cni/README.md generated vendored
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@ -2,15 +2,25 @@
[![Coverage Status](https://coveralls.io/repos/github/containernetworking/cni/badge.svg?branch=master)](https://coveralls.io/github/containernetworking/cni?branch=master)
[![Slack Status](https://cryptic-tundra-43194.herokuapp.com/badge.svg)](https://cryptic-tundra-43194.herokuapp.com/)
![CNI Logo](logo.png)
---
# Community Sync Meeting
There is a community sync meeting for users and developers every 1-2 months. The next meeting will help on a Google Hangout and the link is in the [agenda](https://docs.google.com/document/d/10ECyT2mBGewsJUcmYmS8QNo1AcNgy2ZIe2xS7lShYhE/edit?usp=sharing) (Notes from previous meeting are also in this doc). The next meeting will be held on *Wednesday, June 21th* at *3:00pm UTC* [Add to Calendar]https://www.worldtimebuddy.com/?qm=1&lid=100,5,2643743,5391959&h=100&date=2017-6-21&sln=15-16).
---
# CNI - the Container Network Interface
## What is CNI?
The CNI (_Container Network Interface_) project consists of a specification and libraries for writing plugins to configure network interfaces in Linux containers, along with a number of supported plugins.
CNI (_Container Network Interface_), a [Cloud Native Computing Foundation](https://cncf.io) project, consists of a specification and libraries for writing plugins to configure network interfaces in Linux containers, along with a number of supported plugins.
CNI concerns itself only with network connectivity of containers and removing allocated resources when the container is deleted.
Because of this focus, CNI has a wide range of support and the specification is simple to implement.
As well as the [specification](SPEC.md), this repository contains the Go source code of a library for integrating CNI into applications, an example command-line tool, a template for making new plugins, and the supported plugins.
As well as the [specification](SPEC.md), this repository contains the Go source code of a [library for integrating CNI into applications](libcni) and an [example command-line tool](cnitool) for executing CNI plugins. A [separate repository contains reference plugins](https://github.com/containernetworking/plugins) and a template for making new plugins.
The template code makes it straight-forward to create a CNI plugin for an existing container networking project.
CNI also makes a good framework for creating a new container networking project from scratch.
@ -27,7 +37,8 @@ To avoid duplication, we think it is prudent to define a common interface betwee
- [rkt - container engine](https://coreos.com/blog/rkt-cni-networking.html)
- [Kurma - container runtime](http://kurma.io/)
- [Kubernetes - a system to simplify container operations](http://kubernetes.io/docs/admin/network-plugins/)
- [Cloud Foundry - a platform for cloud applications](https://github.com/cloudfoundry-incubator/netman-release)
- [OpenShift - Kubernetes with additional enterprise features](https://github.com/openshift/origin/blob/master/docs/openshift_networking_requirements.md)
- [Cloud Foundry - a platform for cloud applications](https://github.com/cloudfoundry-incubator/cf-networking-release)
- [Mesos - a distributed systems kernel](https://github.com/apache/mesos/blob/master/docs/cni.md)
### 3rd party plugins
@ -37,8 +48,14 @@ To avoid duplication, we think it is prudent to define a common interface betwee
- [SR-IOV](https://github.com/hustcat/sriov-cni)
- [Cilium - BPF & XDP for containers](https://github.com/cilium/cilium)
- [Infoblox - enterprise IP address management for containers](https://github.com/infobloxopen/cni-infoblox)
- [Multus - a Multi plugin](https://github.com/Intel-Corp/multus-cni)
- [Romana - Layer 3 CNI plugin supporting network policy for Kubernetes](https://github.com/romana/kube)
- [CNI-Genie - generic CNI network plugin](https://github.com/Huawei-PaaS/CNI-Genie)
- [Nuage CNI - Nuage Networks SDN plugin for network policy kubernetes support ](https://github.com/nuagenetworks/nuage-cni)
- [Silk - a CNI plugin designed for Cloud Foundry](https://github.com/cloudfoundry-incubator/silk)
- [Linen - a CNI plugin designed for overlay networks with Open vSwitch and fit in SDN/OpenFlow network environment](https://github.com/John-Lin/linen-cni)
The CNI team also maintains some [core plugins](plugins).
The CNI team also maintains some [core plugins in a separate repository](https://github.com/containernetworking/plugins).
## Contributing to CNI
@ -50,19 +67,16 @@ If you intend to contribute to code or documentation, please read [CONTRIBUTING.
### Requirements
CNI requires Go 1.5+ to build.
The CNI spec is language agnostic. To use the Go language libraries in this repository, you'll need a recent version of Go. Our [automated tests](https://travis-ci.org/containernetworking/cni/builds) cover Go versions 1.7 and 1.8.
Go 1.5 users will need to set GO15VENDOREXPERIMENT=1 to get vendored
dependencies. This flag is set by default in 1.6.
### Reference Plugins
### Included Plugins
This repository includes a number of common plugins in the `plugins/` directory.
Please see the [Documentation/](Documentation/) directory for documentation about particular plugins.
The CNI project maintains a set of [reference plugins](https://github.com/containernetworking/plugins) that implement the CNI specification.
NOTE: the reference plugins used to live in this repository but have been split out into a [separate repository](https://github.com/containernetworking/plugins) as of May 2017.
### Running the plugins
The scripts/ directory contains two scripts, `priv-net-run.sh` and `docker-run.sh`, that can be used to exercise the plugins.
After building and installing the [reference plugins](https://github.com/containernetworking/plugins), you can use the `priv-net-run.sh` and `docker-run.sh` scripts in the `scripts/` directory to exercise the plugins.
**note - priv-net-run.sh depends on `jq`**
@ -100,14 +114,15 @@ The directory `/etc/cni/net.d` is the default location in which the scripts will
Next, build the plugins:
```bash
$ ./build
$ cd $GOPATH/src/github.com/containernetworking/plugins
$ ./build.sh
```
Finally, execute a command (`ifconfig` in this example) in a private network namespace that has joined the `mynet` network:
```bash
$ CNI_PATH=`pwd`/bin
$ cd scripts
$ CNI_PATH=$GOPATH/src/github.com/containernetworking/plugins/bin
$ cd $GOPATH/src/github.com/containernetworking/cni/scripts
$ sudo CNI_PATH=$CNI_PATH ./priv-net-run.sh ifconfig
eth0 Link encap:Ethernet HWaddr f2:c2:6f:54:b8:2b
inet addr:10.22.0.2 Bcast:0.0.0.0 Mask:255.255.0.0
@ -115,7 +130,7 @@ eth0 Link encap:Ethernet HWaddr f2:c2:6f:54:b8:2b
UP BROADCAST MULTICAST MTU:1500 Metric:1
RX packets:1 errors:0 dropped:0 overruns:0 frame:0
TX packets:0 errors:0 dropped:1 overruns:0 carrier:0
collisions:0 txqueuelen:0
collisions:0 txqueuelen:0
RX bytes:90 (90.0 B) TX bytes:0 (0.0 B)
lo Link encap:Local Loopback
@ -124,7 +139,7 @@ lo Link encap:Local Loopback
UP LOOPBACK RUNNING MTU:65536 Metric:1
RX packets:0 errors:0 dropped:0 overruns:0 frame:0
TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:0
collisions:0 txqueuelen:0
RX bytes:0 (0.0 B) TX bytes:0 (0.0 B)
```
@ -136,8 +151,8 @@ Use the instructions in the previous section to define a netconf and build the p
Next, docker-run.sh script wraps `docker run`, to execute the plugins prior to entering the container:
```bash
$ CNI_PATH=`pwd`/bin
$ cd scripts
$ CNI_PATH=$GOPATH/src/github.com/containernetworking/plugins/bin
$ cd $GOPATH/src/github.com/containernetworking/cni/scripts
$ sudo CNI_PATH=$CNI_PATH ./docker-run.sh --rm busybox:latest ifconfig
eth0 Link encap:Ethernet HWaddr fa:60:70:aa:07:d1
inet addr:10.22.0.2 Bcast:0.0.0.0 Mask:255.255.0.0
@ -145,7 +160,7 @@ eth0 Link encap:Ethernet HWaddr fa:60:70:aa:07:d1
UP BROADCAST MULTICAST MTU:1500 Metric:1
RX packets:1 errors:0 dropped:0 overruns:0 frame:0
TX packets:0 errors:0 dropped:1 overruns:0 carrier:0
collisions:0 txqueuelen:0
collisions:0 txqueuelen:0
RX bytes:90 (90.0 B) TX bytes:0 (0.0 B)
lo Link encap:Local Loopback
@ -154,7 +169,7 @@ lo Link encap:Local Loopback
UP LOOPBACK RUNNING MTU:65536 Metric:1
RX packets:0 errors:0 dropped:0 overruns:0 frame:0
TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:0
collisions:0 txqueuelen:0
RX bytes:0 (0.0 B) TX bytes:0 (0.0 B)
```

135
vendor/github.com/containernetworking/cni/libcni/api.go generated vendored
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@ -15,6 +15,7 @@
package libcni
import (
"os"
"strings"
"github.com/containernetworking/cni/pkg/invoke"
@ -27,6 +28,12 @@ type RuntimeConf struct {
NetNS string
IfName string
Args [][2]string
// A dictionary of capability-specific data passed by the runtime
// to plugins as top-level keys in the 'runtimeConfig' dictionary
// of the plugin's stdin data. libcni will ensure that only keys
// in this map which match the capabilities of the plugin are passed
// to the plugin
CapabilityArgs map[string]interface{}
}
type NetworkConfig struct {
@ -34,8 +41,18 @@ type NetworkConfig struct {
Bytes []byte
}
type NetworkConfigList struct {
Name string
CNIVersion string
Plugins []*NetworkConfig
Bytes []byte
}
type CNI interface {
AddNetwork(net *NetworkConfig, rt *RuntimeConf) (*types.Result, error)
AddNetworkList(net *NetworkConfigList, rt *RuntimeConf) (types.Result, error)
DelNetworkList(net *NetworkConfigList, rt *RuntimeConf) error
AddNetwork(net *NetworkConfig, rt *RuntimeConf) (types.Result, error)
DelNetwork(net *NetworkConfig, rt *RuntimeConf) error
}
@ -46,13 +63,120 @@ type CNIConfig struct {
// CNIConfig implements the CNI interface
var _ CNI = &CNIConfig{}
func buildOneConfig(list *NetworkConfigList, orig *NetworkConfig, prevResult types.Result, rt *RuntimeConf) (*NetworkConfig, error) {
var err error
inject := map[string]interface{}{
"name": list.Name,
"cniVersion": list.CNIVersion,
}
// Add previous plugin result
if prevResult != nil {
inject["prevResult"] = prevResult
}
// Ensure every config uses the same name and version
orig, err = InjectConf(orig, inject)
if err != nil {
return nil, err
}
return injectRuntimeConfig(orig, rt)
}
// This function takes a libcni RuntimeConf structure and injects values into
// a "runtimeConfig" dictionary in the CNI network configuration JSON that
// will be passed to the plugin on stdin.
//
// Only "capabilities arguments" passed by the runtime are currently injected.
// These capabilities arguments are filtered through the plugin's advertised
// capabilities from its config JSON, and any keys in the CapabilityArgs
// matching plugin capabilities are added to the "runtimeConfig" dictionary
// sent to the plugin via JSON on stdin. For exmaple, if the plugin's
// capabilities include "portMappings", and the CapabilityArgs map includes a
// "portMappings" key, that key and its value are added to the "runtimeConfig"
// dictionary to be passed to the plugin's stdin.
func injectRuntimeConfig(orig *NetworkConfig, rt *RuntimeConf) (*NetworkConfig, error) {
var err error
rc := make(map[string]interface{})
for capability, supported := range orig.Network.Capabilities {
if !supported {
continue
}
if data, ok := rt.CapabilityArgs[capability]; ok {
rc[capability] = data
}
}
if len(rc) > 0 {
orig, err = InjectConf(orig, map[string]interface{}{"runtimeConfig": rc})
if err != nil {
return nil, err
}
}
return orig, nil
}
// AddNetworkList executes a sequence of plugins with the ADD command
func (c *CNIConfig) AddNetworkList(list *NetworkConfigList, rt *RuntimeConf) (types.Result, error) {
var prevResult types.Result
for _, net := range list.Plugins {
pluginPath, err := invoke.FindInPath(net.Network.Type, c.Path)
if err != nil {
return nil, err
}
newConf, err := buildOneConfig(list, net, prevResult, rt)
if err != nil {
return nil, err
}
prevResult, err = invoke.ExecPluginWithResult(pluginPath, newConf.Bytes, c.args("ADD", rt))
if err != nil {
return nil, err
}
}
return prevResult, nil
}
// DelNetworkList executes a sequence of plugins with the DEL command
func (c *CNIConfig) DelNetworkList(list *NetworkConfigList, rt *RuntimeConf) error {
for i := len(list.Plugins) - 1; i >= 0; i-- {
net := list.Plugins[i]
pluginPath, err := invoke.FindInPath(net.Network.Type, c.Path)
if err != nil {
return err
}
newConf, err := buildOneConfig(list, net, nil, rt)
if err != nil {
return err
}
if err := invoke.ExecPluginWithoutResult(pluginPath, newConf.Bytes, c.args("DEL", rt)); err != nil {
return err
}
}
return nil
}
// AddNetwork executes the plugin with the ADD command
func (c *CNIConfig) AddNetwork(net *NetworkConfig, rt *RuntimeConf) (*types.Result, error) {
func (c *CNIConfig) AddNetwork(net *NetworkConfig, rt *RuntimeConf) (types.Result, error) {
pluginPath, err := invoke.FindInPath(net.Network.Type, c.Path)
if err != nil {
return nil, err
}
net, err = injectRuntimeConfig(net, rt)
if err != nil {
return nil, err
}
return invoke.ExecPluginWithResult(pluginPath, net.Bytes, c.args("ADD", rt))
}
@ -63,6 +187,11 @@ func (c *CNIConfig) DelNetwork(net *NetworkConfig, rt *RuntimeConf) error {
return err
}
net, err = injectRuntimeConfig(net, rt)
if err != nil {
return err
}
return invoke.ExecPluginWithoutResult(pluginPath, net.Bytes, c.args("DEL", rt))
}
@ -85,6 +214,6 @@ func (c *CNIConfig) args(action string, rt *RuntimeConf) *invoke.Args {
NetNS: rt.NetNS,
PluginArgs: rt.Args,
IfName: rt.IfName,
Path: strings.Join(c.Path, ":"),
Path: strings.Join(c.Path, string(os.PathListSeparator)),
}
}

173
vendor/github.com/containernetworking/cni/libcni/conf.go generated vendored
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@ -23,6 +23,23 @@ import (
"sort"
)
type NotFoundError struct {
Dir string
Name string
}
func (e NotFoundError) Error() string {
return fmt.Sprintf(`no net configuration with name "%s" in %s`, e.Name, e.Dir)
}
type NoConfigsFoundError struct {
Dir string
}
func (e NoConfigsFoundError) Error() string {
return fmt.Sprintf(`no net configurations found in %s`, e.Dir)
}
func ConfFromBytes(bytes []byte) (*NetworkConfig, error) {
conf := &NetworkConfig{Bytes: bytes}
if err := json.Unmarshal(bytes, &conf.Network); err != nil {
@ -39,7 +56,73 @@ func ConfFromFile(filename string) (*NetworkConfig, error) {
return ConfFromBytes(bytes)
}
func ConfFiles(dir string) ([]string, error) {
func ConfListFromBytes(bytes []byte) (*NetworkConfigList, error) {
rawList := make(map[string]interface{})
if err := json.Unmarshal(bytes, &rawList); err != nil {
return nil, fmt.Errorf("error parsing configuration list: %s", err)
}
rawName, ok := rawList["name"]
if !ok {
return nil, fmt.Errorf("error parsing configuration list: no name")
}
name, ok := rawName.(string)
if !ok {
return nil, fmt.Errorf("error parsing configuration list: invalid name type %T", rawName)
}
var cniVersion string
rawVersion, ok := rawList["cniVersion"]
if ok {
cniVersion, ok = rawVersion.(string)
if !ok {
return nil, fmt.Errorf("error parsing configuration list: invalid cniVersion type %T", rawVersion)
}
}
list := &NetworkConfigList{
Name: name,
CNIVersion: cniVersion,
Bytes: bytes,
}
var plugins []interface{}
plug, ok := rawList["plugins"]
if !ok {
return nil, fmt.Errorf("error parsing configuration list: no 'plugins' key")
}
plugins, ok = plug.([]interface{})
if !ok {
return nil, fmt.Errorf("error parsing configuration list: invalid 'plugins' type %T", plug)
}
if len(plugins) == 0 {
return nil, fmt.Errorf("error parsing configuration list: no plugins in list")
}
for i, conf := range plugins {
newBytes, err := json.Marshal(conf)
if err != nil {
return nil, fmt.Errorf("Failed to marshal plugin config %d: %v", i, err)
}
netConf, err := ConfFromBytes(newBytes)
if err != nil {
return nil, fmt.Errorf("Failed to parse plugin config %d: %v", i, err)
}
list.Plugins = append(list.Plugins, netConf)
}
return list, nil
}
func ConfListFromFile(filename string) (*NetworkConfigList, error) {
bytes, err := ioutil.ReadFile(filename)
if err != nil {
return nil, fmt.Errorf("error reading %s: %s", filename, err)
}
return ConfListFromBytes(bytes)
}
func ConfFiles(dir string, extensions []string) ([]string, error) {
// In part, adapted from rkt/networking/podenv.go#listFiles
files, err := ioutil.ReadDir(dir)
switch {
@ -56,20 +139,22 @@ func ConfFiles(dir string) ([]string, error) {
continue
}
fileExt := filepath.Ext(f.Name())
if fileExt == ".conf" || fileExt == ".json" {
confFiles = append(confFiles, filepath.Join(dir, f.Name()))
for _, ext := range extensions {
if fileExt == ext {
confFiles = append(confFiles, filepath.Join(dir, f.Name()))
}
}
}
return confFiles, nil
}
func LoadConf(dir, name string) (*NetworkConfig, error) {
files, err := ConfFiles(dir)
files, err := ConfFiles(dir, []string{".conf", ".json"})
switch {
case err != nil:
return nil, err
case len(files) == 0:
return nil, fmt.Errorf("no net configurations found")
return nil, NoConfigsFoundError{Dir: dir}
}
sort.Strings(files)
@ -82,25 +167,59 @@ func LoadConf(dir, name string) (*NetworkConfig, error) {
return conf, nil
}
}
return nil, fmt.Errorf(`no net configuration with name "%s" in %s`, name, dir)
return nil, NotFoundError{dir, name}
}
func InjectConf(original *NetworkConfig, key string, newValue interface{}) (*NetworkConfig, error) {
func LoadConfList(dir, name string) (*NetworkConfigList, error) {
files, err := ConfFiles(dir, []string{".conflist"})
if err != nil {
return nil, err
}
sort.Strings(files)
for _, confFile := range files {
conf, err := ConfListFromFile(confFile)
if err != nil {
return nil, err
}
if conf.Name == name {
return conf, nil
}
}
// Try and load a network configuration file (instead of list)
// from the same name, then upconvert.
singleConf, err := LoadConf(dir, name)
if err != nil {
// A little extra logic so the error makes sense
if _, ok := err.(NoConfigsFoundError); len(files) != 0 && ok {
// Config lists found but no config files found
return nil, NotFoundError{dir, name}
}
return nil, err
}
return ConfListFromConf(singleConf)
}
func InjectConf(original *NetworkConfig, newValues map[string]interface{}) (*NetworkConfig, error) {
config := make(map[string]interface{})
err := json.Unmarshal(original.Bytes, &config)
if err != nil {
return nil, fmt.Errorf("unmarshal existing network bytes: %s", err)
}
if key == "" {
return nil, fmt.Errorf("key value can not be empty")
}
for key, value := range newValues {
if key == "" {
return nil, fmt.Errorf("keys cannot be empty")
}
if newValue == nil {
return nil, fmt.Errorf("newValue must be specified")
}
if value == nil {
return nil, fmt.Errorf("key '%s' value must not be nil", key)
}
config[key] = newValue
config[key] = value
}
newBytes, err := json.Marshal(config)
if err != nil {
@ -109,3 +228,29 @@ func InjectConf(original *NetworkConfig, key string, newValue interface{}) (*Net
return ConfFromBytes(newBytes)
}
// ConfListFromConf "upconverts" a network config in to a NetworkConfigList,
// with the single network as the only entry in the list.
func ConfListFromConf(original *NetworkConfig) (*NetworkConfigList, error) {
// Re-deserialize the config's json, then make a raw map configlist.
// This may seem a bit strange, but it's to make the Bytes fields
// actually make sense. Otherwise, the generated json is littered with
// golang default values.
rawConfig := make(map[string]interface{})
if err := json.Unmarshal(original.Bytes, &rawConfig); err != nil {
return nil, err
}
rawConfigList := map[string]interface{}{
"name": original.Network.Name,
"cniVersion": original.Network.CNIVersion,
"plugins": []interface{}{rawConfig},
}
b, err := json.Marshal(rawConfigList)
if err != nil {
return nil, err
}
return ConfListFromBytes(b)
}

17
vendor/github.com/containernetworking/cni/pkg/invoke/args.go generated vendored
View File

@ -57,13 +57,16 @@ func (args *Args) AsEnv() []string {
pluginArgsStr = stringify(args.PluginArgs)
}
env = append(env,
"CNI_COMMAND="+args.Command,
"CNI_CONTAINERID="+args.ContainerID,
"CNI_NETNS="+args.NetNS,
"CNI_ARGS="+pluginArgsStr,
"CNI_IFNAME="+args.IfName,
"CNI_PATH="+args.Path)
// Ensure that the custom values are first, so any value present in
// the process environment won't override them.
env = append([]string{
"CNI_COMMAND=" + args.Command,
"CNI_CONTAINERID=" + args.ContainerID,
"CNI_NETNS=" + args.NetNS,
"CNI_ARGS=" + pluginArgsStr,
"CNI_IFNAME=" + args.IfName,
"CNI_PATH=" + args.Path,
}, env...)
return env
}

8
vendor/github.com/containernetworking/cni/pkg/invoke/delegate.go generated vendored
View File

@ -17,17 +17,17 @@ package invoke
import (
"fmt"
"os"
"strings"
"path/filepath"
"github.com/containernetworking/cni/pkg/types"
)
func DelegateAdd(delegatePlugin string, netconf []byte) (*types.Result, error) {
func DelegateAdd(delegatePlugin string, netconf []byte) (types.Result, error) {
if os.Getenv("CNI_COMMAND") != "ADD" {
return nil, fmt.Errorf("CNI_COMMAND is not ADD")
}
paths := strings.Split(os.Getenv("CNI_PATH"), ":")
paths := filepath.SplitList(os.Getenv("CNI_PATH"))
pluginPath, err := FindInPath(delegatePlugin, paths)
if err != nil {
@ -42,7 +42,7 @@ func DelegateDel(delegatePlugin string, netconf []byte) error {
return fmt.Errorf("CNI_COMMAND is not DEL")
}
paths := strings.Split(os.Getenv("CNI_PATH"), ":")
paths := filepath.SplitList(os.Getenv("CNI_PATH"))
pluginPath, err := FindInPath(delegatePlugin, paths)
if err != nil {

16
vendor/github.com/containernetworking/cni/pkg/invoke/exec.go generated vendored
View File

@ -15,7 +15,6 @@
package invoke
import (
"encoding/json"
"fmt"
"os"
@ -23,7 +22,7 @@ import (
"github.com/containernetworking/cni/pkg/version"
)
func ExecPluginWithResult(pluginPath string, netconf []byte, args CNIArgs) (*types.Result, error) {
func ExecPluginWithResult(pluginPath string, netconf []byte, args CNIArgs) (types.Result, error) {
return defaultPluginExec.WithResult(pluginPath, netconf, args)
}
@ -49,15 +48,20 @@ type PluginExec struct {
}
}
func (e *PluginExec) WithResult(pluginPath string, netconf []byte, args CNIArgs) (*types.Result, error) {
func (e *PluginExec) WithResult(pluginPath string, netconf []byte, args CNIArgs) (types.Result, error) {
stdoutBytes, err := e.RawExec.ExecPlugin(pluginPath, netconf, args.AsEnv())
if err != nil {
return nil, err
}
res := &types.Result{}
err = json.Unmarshal(stdoutBytes, res)
return res, err
// Plugin must return result in same version as specified in netconf
versionDecoder := &version.ConfigDecoder{}
confVersion, err := versionDecoder.Decode(netconf)
if err != nil {
return nil, err
}
return version.NewResult(confVersion, stdoutBytes)
}
func (e *PluginExec) WithoutResult(pluginPath string, netconf []byte, args CNIArgs) error {

16
vendor/github.com/containernetworking/cni/pkg/invoke/find.go generated vendored
View File

@ -30,18 +30,14 @@ func FindInPath(plugin string, paths []string) (string, error) {
return "", fmt.Errorf("no paths provided")
}
var fullpath string
for _, path := range paths {
full := filepath.Join(path, plugin)
if fi, err := os.Stat(full); err == nil && fi.Mode().IsRegular() {
fullpath = full
break
for _, fe := range ExecutableFileExtensions {
fullpath := filepath.Join(path, plugin) + fe
if fi, err := os.Stat(fullpath); err == nil && fi.Mode().IsRegular() {
return fullpath, nil
}
}
}
if fullpath == "" {
return "", fmt.Errorf("failed to find plugin %q in path %s", plugin, paths)
}
return fullpath, nil
return "", fmt.Errorf("failed to find plugin %q in path %s", plugin, paths)
}

20
vendor/github.com/containernetworking/cni/pkg/invoke/os_unix.go generated vendored Normal file
View File

@ -0,0 +1,20 @@
// Copyright 2016 CNI 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.
// +build darwin dragonfly freebsd linux netbsd opensbd solaris
package invoke
// Valid file extensions for plugin executables.
var ExecutableFileExtensions = []string{""}

18
vendor/github.com/containernetworking/cni/pkg/invoke/os_windows.go generated vendored Normal file
View File

@ -0,0 +1,18 @@
// Copyright 2016 CNI 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 invoke
// Valid file extensions for plugin executables.
var ExecutableFileExtensions = []string{".exe", ""}

8
vendor/github.com/containernetworking/cni/pkg/invoke/raw_exec.go generated vendored
View File

@ -50,13 +50,9 @@ func pluginErr(err error, output []byte) error {
if _, ok := err.(*exec.ExitError); ok {
emsg := types.Error{}
if perr := json.Unmarshal(output, &emsg); perr != nil {
return fmt.Errorf("netplugin failed but error parsing its diagnostic message %q: %v", string(output), perr)
emsg.Msg = fmt.Sprintf("netplugin failed but error parsing its diagnostic message %q: %v", string(output), perr)
}
details := ""
if emsg.Details != "" {
details = fmt.Sprintf("; %v", emsg.Details)
}
return fmt.Errorf("%v%v", emsg.Msg, details)
return &emsg
}
return err

135
vendor/github.com/containernetworking/cni/pkg/types/020/types.go generated vendored Normal file
View File

@ -0,0 +1,135 @@
// Copyright 2016 CNI 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 types020
import (
"encoding/json"
"fmt"
"net"
"os"
"github.com/containernetworking/cni/pkg/types"
)
const ImplementedSpecVersion string = "0.2.0"
var SupportedVersions = []string{"", "0.1.0", ImplementedSpecVersion}
// Compatibility types for CNI version 0.1.0 and 0.2.0
func NewResult(data []byte) (types.Result, error) {
result := &Result{}
if err := json.Unmarshal(data, result); err != nil {
return nil, err
}
return result, nil
}
func GetResult(r types.Result) (*Result, error) {
// We expect version 0.1.0/0.2.0 results
result020, err := r.GetAsVersion(ImplementedSpecVersion)
if err != nil {
return nil, err
}
result, ok := result020.(*Result)
if !ok {
return nil, fmt.Errorf("failed to convert result")
}
return result, nil
}
// Result is what gets returned from the plugin (via stdout) to the caller
type Result struct {
CNIVersion string `json:"cniVersion,omitempty"`
IP4 *IPConfig `json:"ip4,omitempty"`
IP6 *IPConfig `json:"ip6,omitempty"`
DNS types.DNS `json:"dns,omitempty"`
}
func (r *Result) Version() string {
return ImplementedSpecVersion
}
func (r *Result) GetAsVersion(version string) (types.Result, error) {
for _, supportedVersion := range SupportedVersions {
if version == supportedVersion {
r.CNIVersion = version
return r, nil
}
}
return nil, fmt.Errorf("cannot convert version %q to %s", SupportedVersions, version)
}
func (r *Result) Print() error {
data, err := json.MarshalIndent(r, "", " ")
if err != nil {
return err
}
_, err = os.Stdout.Write(data)
return err
}
// String returns a formatted string in the form of "[IP4: $1,][ IP6: $2,] DNS: $3" where
// $1 represents the receiver's IPv4, $2 represents the receiver's IPv6 and $3 the
// receiver's DNS. If $1 or $2 are nil, they won't be present in the returned string.
func (r *Result) String() string {
var str string
if r.IP4 != nil {
str = fmt.Sprintf("IP4:%+v, ", *r.IP4)
}
if r.IP6 != nil {
str += fmt.Sprintf("IP6:%+v, ", *r.IP6)
}
return fmt.Sprintf("%sDNS:%+v", str, r.DNS)
}
// IPConfig contains values necessary to configure an interface
type IPConfig struct {
IP net.IPNet
Gateway net.IP
Routes []types.Route
}
// net.IPNet is not JSON (un)marshallable so this duality is needed
// for our custom IPNet type
// JSON (un)marshallable types
type ipConfig struct {
IP types.IPNet `json:"ip"`
Gateway net.IP `json:"gateway,omitempty"`
Routes []types.Route `json:"routes,omitempty"`
}
func (c *IPConfig) MarshalJSON() ([]byte, error) {
ipc := ipConfig{
IP: types.IPNet(c.IP),
Gateway: c.Gateway,
Routes: c.Routes,
}
return json.Marshal(ipc)
}
func (c *IPConfig) UnmarshalJSON(data []byte) error {
ipc := ipConfig{}
if err := json.Unmarshal(data, &ipc); err != nil {
return err
}
c.IP = net.IPNet(ipc.IP)
c.Gateway = ipc.Gateway
c.Routes = ipc.Routes
return nil
}

15
vendor/github.com/containernetworking/cni/pkg/types/args.go generated vendored
View File

@ -63,6 +63,12 @@ func GetKeyField(keyString string, v reflect.Value) reflect.Value {
return v.Elem().FieldByName(keyString)
}
// UnmarshalableArgsError is used to indicate error unmarshalling args
// from the args-string in the form "K=V;K2=V2;..."
type UnmarshalableArgsError struct {
error
}
// LoadArgs parses args from a string in the form "K=V;K2=V2;..."
func LoadArgs(args string, container interface{}) error {
if args == "" {
@ -85,8 +91,13 @@ func LoadArgs(args string, container interface{}) error {
unknownArgs = append(unknownArgs, pair)
continue
}
u := keyField.Addr().Interface().(encoding.TextUnmarshaler)
keyFieldIface := keyField.Addr().Interface()
u, ok := keyFieldIface.(encoding.TextUnmarshaler)
if !ok {
return UnmarshalableArgsError{fmt.Errorf(
"ARGS: cannot unmarshal into field '%s' - type '%s' does not implement encoding.TextUnmarshaler",
keyString, reflect.TypeOf(keyFieldIface))}
}
err := u.UnmarshalText([]byte(valueString))
if err != nil {
return fmt.Errorf("ARGS: error parsing value of pair %q: %v)", pair, err)

300
vendor/github.com/containernetworking/cni/pkg/types/current/types.go generated vendored Normal file
View File

@ -0,0 +1,300 @@
// Copyright 2016 CNI 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 current
import (
"encoding/json"
"fmt"
"net"
"os"
"github.com/containernetworking/cni/pkg/types"
"github.com/containernetworking/cni/pkg/types/020"
)
const ImplementedSpecVersion string = "0.3.1"
var SupportedVersions = []string{"0.3.0", ImplementedSpecVersion}
func NewResult(data []byte) (types.Result, error) {
result := &Result{}
if err := json.Unmarshal(data, result); err != nil {
return nil, err
}
return result, nil
}
func GetResult(r types.Result) (*Result, error) {
resultCurrent, err := r.GetAsVersion(ImplementedSpecVersion)
if err != nil {
return nil, err
}
result, ok := resultCurrent.(*Result)
if !ok {
return nil, fmt.Errorf("failed to convert result")
}
return result, nil
}
var resultConverters = []struct {
versions []string
convert func(types.Result) (*Result, error)
}{
{types020.SupportedVersions, convertFrom020},
{SupportedVersions, convertFrom030},
}
func convertFrom020(result types.Result) (*Result, error) {
oldResult, err := types020.GetResult(result)
if err != nil {
return nil, err
}
newResult := &Result{
CNIVersion: ImplementedSpecVersion,
DNS: oldResult.DNS,
Routes: []*types.Route{},
}
if oldResult.IP4 != nil {
newResult.IPs = append(newResult.IPs, &IPConfig{
Version: "4",
Address: oldResult.IP4.IP,
Gateway: oldResult.IP4.Gateway,
})
for _, route := range oldResult.IP4.Routes {
gw := route.GW
if gw == nil {
gw = oldResult.IP4.Gateway
}
newResult.Routes = append(newResult.Routes, &types.Route{
Dst: route.Dst,
GW: gw,
})
}
}
if oldResult.IP6 != nil {
newResult.IPs = append(newResult.IPs, &IPConfig{
Version: "6",
Address: oldResult.IP6.IP,
Gateway: oldResult.IP6.Gateway,
})
for _, route := range oldResult.IP6.Routes {
gw := route.GW
if gw == nil {
gw = oldResult.IP6.Gateway
}
newResult.Routes = append(newResult.Routes, &types.Route{
Dst: route.Dst,
GW: gw,
})
}
}
if len(newResult.IPs) == 0 {
return nil, fmt.Errorf("cannot convert: no valid IP addresses")
}
return newResult, nil
}
func convertFrom030(result types.Result) (*Result, error) {
newResult, ok := result.(*Result)
if !ok {
return nil, fmt.Errorf("failed to convert result")
}
newResult.CNIVersion = ImplementedSpecVersion
return newResult, nil
}
func NewResultFromResult(result types.Result) (*Result, error) {
version := result.Version()
for _, converter := range resultConverters {
for _, supportedVersion := range converter.versions {
if version == supportedVersion {
return converter.convert(result)
}
}
}
return nil, fmt.Errorf("unsupported CNI result22 version %q", version)
}
// Result is what gets returned from the plugin (via stdout) to the caller
type Result struct {
CNIVersion string `json:"cniVersion,omitempty"`
Interfaces []*Interface `json:"interfaces,omitempty"`
IPs []*IPConfig `json:"ips,omitempty"`
Routes []*types.Route `json:"routes,omitempty"`
DNS types.DNS `json:"dns,omitempty"`
}
// Convert to the older 0.2.0 CNI spec Result type
func (r *Result) convertTo020() (*types020.Result, error) {
oldResult := &types020.Result{
CNIVersion: types020.ImplementedSpecVersion,
DNS: r.DNS,
}
for _, ip := range r.IPs {
// Only convert the first IP address of each version as 0.2.0
// and earlier cannot handle multiple IP addresses
if ip.Version == "4" && oldResult.IP4 == nil {
oldResult.IP4 = &types020.IPConfig{
IP: ip.Address,
Gateway: ip.Gateway,
}
} else if ip.Version == "6" && oldResult.IP6 == nil {
oldResult.IP6 = &types020.IPConfig{
IP: ip.Address,
Gateway: ip.Gateway,
}
}
if oldResult.IP4 != nil && oldResult.IP6 != nil {
break
}
}
for _, route := range r.Routes {
is4 := route.Dst.IP.To4() != nil
if is4 && oldResult.IP4 != nil {
oldResult.IP4.Routes = append(oldResult.IP4.Routes, types.Route{
Dst: route.Dst,
GW: route.GW,
})
} else if !is4 && oldResult.IP6 != nil {
oldResult.IP6.Routes = append(oldResult.IP6.Routes, types.Route{
Dst: route.Dst,
GW: route.GW,
})
}
}
if oldResult.IP4 == nil && oldResult.IP6 == nil {
return nil, fmt.Errorf("cannot convert: no valid IP addresses")
}
return oldResult, nil
}
func (r *Result) Version() string {
return ImplementedSpecVersion
}
func (r *Result) GetAsVersion(version string) (types.Result, error) {
switch version {
case "0.3.0", ImplementedSpecVersion:
r.CNIVersion = version
return r, nil
case types020.SupportedVersions[0], types020.SupportedVersions[1], types020.SupportedVersions[2]:
return r.convertTo020()
}
return nil, fmt.Errorf("cannot convert version 0.3.x to %q", version)
}
func (r *Result) Print() error {
data, err := json.MarshalIndent(r, "", " ")
if err != nil {
return err
}
_, err = os.Stdout.Write(data)
return err
}
// String returns a formatted string in the form of "[Interfaces: $1,][ IP: $2,] DNS: $3" where
// $1 represents the receiver's Interfaces, $2 represents the receiver's IP addresses and $3 the
// receiver's DNS. If $1 or $2 are nil, they won't be present in the returned string.
func (r *Result) String() string {
var str string
if len(r.Interfaces) > 0 {
str += fmt.Sprintf("Interfaces:%+v, ", r.Interfaces)
}
if len(r.IPs) > 0 {
str += fmt.Sprintf("IP:%+v, ", r.IPs)
}
if len(r.Routes) > 0 {
str += fmt.Sprintf("Routes:%+v, ", r.Routes)
}
return fmt.Sprintf("%sDNS:%+v", str, r.DNS)
}
// Convert this old version result to the current CNI version result
func (r *Result) Convert() (*Result, error) {
return r, nil
}
// Interface contains values about the created interfaces
type Interface struct {
Name string `json:"name"`
Mac string `json:"mac,omitempty"`
Sandbox string `json:"sandbox,omitempty"`
}
func (i *Interface) String() string {
return fmt.Sprintf("%+v", *i)
}
// Int returns a pointer to the int value passed in. Used to
// set the IPConfig.Interface field.
func Int(v int) *int {
return &v
}
// IPConfig contains values necessary to configure an IP address on an interface
type IPConfig struct {
// IP version, either "4" or "6"
Version string
// Index into Result structs Interfaces list
Interface *int
Address net.IPNet
Gateway net.IP
}
func (i *IPConfig) String() string {
return fmt.Sprintf("%+v", *i)
}
// JSON (un)marshallable types
type ipConfig struct {
Version string `json:"version"`
Interface *int `json:"interface,omitempty"`
Address types.IPNet `json:"address"`
Gateway net.IP `json:"gateway,omitempty"`
}
func (c *IPConfig) MarshalJSON() ([]byte, error) {
ipc := ipConfig{
Version: c.Version,
Interface: c.Interface,
Address: types.IPNet(c.Address),
Gateway: c.Gateway,
}
return json.Marshal(ipc)
}
func (c *IPConfig) UnmarshalJSON(data []byte) error {
ipc := ipConfig{}
if err := json.Unmarshal(data, &ipc); err != nil {
return err
}
c.Version = ipc.Version
c.Interface = ipc.Interface
c.Address = net.IPNet(ipc.Address)
c.Gateway = ipc.Gateway
return nil
}

102
vendor/github.com/containernetworking/cni/pkg/types/types.go generated vendored
View File

@ -16,6 +16,7 @@ package types
import (
"encoding/json"
"errors"
"fmt"
"net"
"os"
@ -59,44 +60,48 @@ func (n *IPNet) UnmarshalJSON(data []byte) error {
type NetConf struct {
CNIVersion string `json:"cniVersion,omitempty"`
Name string `json:"name,omitempty"`
Type string `json:"type,omitempty"`
IPAM struct {
Name string `json:"name,omitempty"`
Type string `json:"type,omitempty"`
Capabilities map[string]bool `json:"capabilities,omitempty"`
IPAM struct {
Type string `json:"type,omitempty"`
} `json:"ipam,omitempty"`
DNS DNS `json:"dns"`
}
// Result is what gets returned from the plugin (via stdout) to the caller
type Result struct {
IP4 *IPConfig `json:"ip4,omitempty"`
IP6 *IPConfig `json:"ip6,omitempty"`
DNS DNS `json:"dns,omitempty"`
// NetConfList describes an ordered list of networks.
type NetConfList struct {
CNIVersion string `json:"cniVersion,omitempty"`
Name string `json:"name,omitempty"`
Plugins []*NetConf `json:"plugins,omitempty"`
}
func (r *Result) Print() error {
return prettyPrint(r)
type ResultFactoryFunc func([]byte) (Result, error)
// Result is an interface that provides the result of plugin execution
type Result interface {
// The highest CNI specification result verison the result supports
// without having to convert
Version() string
// Returns the result converted into the requested CNI specification
// result version, or an error if conversion failed
GetAsVersion(version string) (Result, error)
// Prints the result in JSON format to stdout
Print() error
// Returns a JSON string representation of the result
String() string
}
// String returns a formatted string in the form of "[IP4: $1,][ IP6: $2,] DNS: $3" where
// $1 represents the receiver's IPv4, $2 represents the receiver's IPv6 and $3 the
// receiver's DNS. If $1 or $2 are nil, they won't be present in the returned string.
func (r *Result) String() string {
var str string
if r.IP4 != nil {
str = fmt.Sprintf("IP4:%+v, ", *r.IP4)
func PrintResult(result Result, version string) error {
newResult, err := result.GetAsVersion(version)
if err != nil {
return err
}
if r.IP6 != nil {
str += fmt.Sprintf("IP6:%+v, ", *r.IP6)
}
return fmt.Sprintf("%sDNS:%+v", str, r.DNS)
}
// IPConfig contains values necessary to configure an interface
type IPConfig struct {
IP net.IPNet
Gateway net.IP
Routes []Route
return newResult.Print()
}
// DNS contains values interesting for DNS resolvers
@ -112,6 +117,10 @@ type Route struct {
GW net.IP
}
func (r *Route) String() string {
return fmt.Sprintf("%+v", *r)
}
// Well known error codes
// see https://github.com/containernetworking/cni/blob/master/SPEC.md#well-known-error-codes
const (
@ -127,7 +136,11 @@ type Error struct {
}
func (e *Error) Error() string {
return e.Msg
details := ""
if e.Details != "" {
details = fmt.Sprintf("; %v", e.Details)
}
return fmt.Sprintf("%v%v", e.Msg, details)
}
func (e *Error) Print() error {
@ -138,39 +151,11 @@ func (e *Error) Print() error {
// for our custom IPNet type
// JSON (un)marshallable types
type ipConfig struct {
IP IPNet `json:"ip"`
Gateway net.IP `json:"gateway,omitempty"`
Routes []Route `json:"routes,omitempty"`
}
type route struct {
Dst IPNet `json:"dst"`
GW net.IP `json:"gw,omitempty"`
}
func (c *IPConfig) MarshalJSON() ([]byte, error) {
ipc := ipConfig{
IP: IPNet(c.IP),
Gateway: c.Gateway,
Routes: c.Routes,
}
return json.Marshal(ipc)
}
func (c *IPConfig) UnmarshalJSON(data []byte) error {
ipc := ipConfig{}
if err := json.Unmarshal(data, &ipc); err != nil {
return err
}
c.IP = net.IPNet(ipc.IP)
c.Gateway = ipc.Gateway
c.Routes = ipc.Routes
return nil
}
func (r *Route) UnmarshalJSON(data []byte) error {
rt := route{}
if err := json.Unmarshal(data, &rt); err != nil {
@ -199,3 +184,6 @@ func prettyPrint(obj interface{}) error {
_, err = os.Stdout.Write(data)
return err
}
// NotImplementedError is used to indicate that a method is not implemented for the given platform
var NotImplementedError = errors.New("Not Implemented")

20
vendor/github.com/containernetworking/cni/pkg/version/reconcile.go generated vendored
View File

@ -17,12 +17,12 @@ package version
import "fmt"
type ErrorIncompatible struct {
Config string
Plugin []string
Config string
Supported []string
}
func (e *ErrorIncompatible) Details() string {
return fmt.Sprintf("config is %q, plugin supports %q", e.Config, e.Plugin)
return fmt.Sprintf("config is %q, plugin supports %q", e.Config, e.Supported)
}
func (e *ErrorIncompatible) Error() string {
@ -31,17 +31,19 @@ func (e *ErrorIncompatible) Error() string {
type Reconciler struct{}
func (*Reconciler) Check(configVersion string, pluginInfo PluginInfo) *ErrorIncompatible {
pluginVersions := pluginInfo.SupportedVersions()
func (r *Reconciler) Check(configVersion string, pluginInfo PluginInfo) *ErrorIncompatible {
return r.CheckRaw(configVersion, pluginInfo.SupportedVersions())
}
for _, pluginVersion := range pluginVersions {
if configVersion == pluginVersion {
func (*Reconciler) CheckRaw(configVersion string, supportedVersions []string) *ErrorIncompatible {
for _, supportedVersion := range supportedVersions {
if configVersion == supportedVersion {
return nil
}
}
return &ErrorIncompatible{
Config: configVersion,
Plugin: pluginVersions,
Config: configVersion,
Supported: supportedVersions,
}
}

34
vendor/github.com/containernetworking/cni/pkg/version/version.go generated vendored
View File

@ -14,9 +14,17 @@
package version
import (
"fmt"
"github.com/containernetworking/cni/pkg/types"
"github.com/containernetworking/cni/pkg/types/020"
"github.com/containernetworking/cni/pkg/types/current"
)
// Current reports the version of the CNI spec implemented by this library
func Current() string {
return "0.2.0"
return "0.3.1"
}
// Legacy PluginInfo describes a plugin that is backwards compatible with the
@ -27,3 +35,27 @@ func Current() string {
// Any future CNI spec versions which meet this definition should be added to
// this list.
var Legacy = PluginSupports("0.1.0", "0.2.0")
var All = PluginSupports("0.1.0", "0.2.0", "0.3.0", "0.3.1")
var resultFactories = []struct {
supportedVersions []string
newResult types.ResultFactoryFunc
}{
{current.SupportedVersions, current.NewResult},
{types020.SupportedVersions, types020.NewResult},
}
// Finds a Result object matching the requested version (if any) and asks
// that object to parse the plugin result, returning an error if parsing failed.
func NewResult(version string, resultBytes []byte) (types.Result, error) {
reconciler := &Reconciler{}
for _, resultFactory := range resultFactories {
err := reconciler.CheckRaw(version, resultFactory.supportedVersions)
if err == nil {
// Result supports this version
return resultFactory.newResult(resultBytes)
}
}
return nil, fmt.Errorf("unsupported CNI result version %q", version)
}