vendor: add github.com/cri-o/ocicni
Signed-off-by: Dan Williams <dcbw@redhat.com>
This commit is contained in:
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191
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191
vendor/github.com/cri-o/ocicni/LICENSE
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Apache License
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Version 2.0, January 2004
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http://www.apache.org/licenses/
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TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION
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END OF TERMS AND CONDITIONS
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Copyright 2016 Red Hat, Inc.
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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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Unless required by applicable law or agreed to in writing, software
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See the License for the specific language governing permissions and
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3
vendor/github.com/cri-o/ocicni/README.md
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vendor/github.com/cri-o/ocicni/README.md
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# ocicni
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API layer to call the CNI plugins from an OCI lifecycle daemon
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vendor/github.com/cri-o/ocicni/pkg/ocicni/noop.go
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vendor/github.com/cri-o/ocicni/pkg/ocicni/noop.go
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package ocicni
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type cniNoOp struct {
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}
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func (noop *cniNoOp) Name() string {
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return "CNINoOp"
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}
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func (noop *cniNoOp) SetUpPod(network PodNetwork) error {
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return nil
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}
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func (noop *cniNoOp) TearDownPod(network PodNetwork) error {
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return nil
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}
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func (noop *cniNoOp) GetPodNetworkStatus(network PodNetwork) (string, error) {
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return "", nil
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}
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func (noop *cniNoOp) Status() error {
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return nil
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}
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vendor/github.com/cri-o/ocicni/pkg/ocicni/ocicni.go
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package ocicni
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import (
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"errors"
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"fmt"
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"os/exec"
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"sort"
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"strings"
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"sync"
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"github.com/containernetworking/cni/libcni"
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cnitypes "github.com/containernetworking/cni/pkg/types"
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"github.com/fsnotify/fsnotify"
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"github.com/sirupsen/logrus"
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)
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type cniNetworkPlugin struct {
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loNetwork *cniNetwork
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sync.RWMutex
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defaultNetwork *cniNetwork
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nsenterPath string
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pluginDir string
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cniDirs []string
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vendorCNIDirPrefix string
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monitorNetDirChan chan struct{}
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// The pod map provides synchronization for a given pod's network
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// operations. Each pod's setup/teardown/status operations
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// are synchronized against each other, but network operations of other
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// pods can proceed in parallel.
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podsLock sync.Mutex
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pods map[string]*podLock
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}
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type cniNetwork struct {
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name string
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NetworkConfig *libcni.NetworkConfigList
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CNIConfig libcni.CNI
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}
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var errMissingDefaultNetwork = errors.New("Missing CNI default network")
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type podLock struct {
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// Count of in-flight operations for this pod; when this reaches zero
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// the lock can be removed from the pod map
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refcount uint
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// Lock to synchronize operations for this specific pod
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mu sync.Mutex
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}
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func buildFullPodName(podNetwork PodNetwork) string {
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return podNetwork.Namespace + "_" + podNetwork.Name
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}
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// Lock network operations for a specific pod. If that pod is not yet in
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// the pod map, it will be added. The reference count for the pod will
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// be increased.
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func (plugin *cniNetworkPlugin) podLock(podNetwork PodNetwork) *sync.Mutex {
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plugin.podsLock.Lock()
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defer plugin.podsLock.Unlock()
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fullPodName := buildFullPodName(podNetwork)
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lock, ok := plugin.pods[fullPodName]
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if !ok {
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lock = &podLock{}
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plugin.pods[fullPodName] = lock
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}
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lock.refcount++
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return &lock.mu
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}
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// Unlock network operations for a specific pod. The reference count for the
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// pod will be decreased. If the reference count reaches zero, the pod will be
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// removed from the pod map.
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func (plugin *cniNetworkPlugin) podUnlock(podNetwork PodNetwork) {
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plugin.podsLock.Lock()
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defer plugin.podsLock.Unlock()
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fullPodName := buildFullPodName(podNetwork)
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lock, ok := plugin.pods[fullPodName]
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if !ok {
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logrus.Warningf("Unbalanced pod lock unref for %s", fullPodName)
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return
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} else if lock.refcount == 0 {
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// This should never ever happen, but handle it anyway
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delete(plugin.pods, fullPodName)
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logrus.Errorf("Pod lock for %s still in map with zero refcount", fullPodName)
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return
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}
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lock.refcount--
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lock.mu.Unlock()
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if lock.refcount == 0 {
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delete(plugin.pods, fullPodName)
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}
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}
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func (plugin *cniNetworkPlugin) monitorNetDir() {
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watcher, err := fsnotify.NewWatcher()
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if err != nil {
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logrus.Errorf("could not create new watcher %v", err)
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return
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}
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defer watcher.Close()
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go func() {
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for {
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select {
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case event := <-watcher.Events:
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logrus.Debugf("CNI monitoring event %v", event)
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if event.Op&fsnotify.Create != fsnotify.Create &&
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event.Op&fsnotify.Write != fsnotify.Write {
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continue
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}
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if err = plugin.syncNetworkConfig(); err == nil {
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logrus.Infof("CNI asynchronous setting succeeded")
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continue
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}
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logrus.Errorf("CNI setting failed, continue monitoring: %v", err)
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case err := <-watcher.Errors:
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logrus.Errorf("CNI monitoring error %v", err)
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close(plugin.monitorNetDirChan)
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return
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}
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}
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}()
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if err = watcher.Add(plugin.pluginDir); err != nil {
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logrus.Error(err)
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return
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}
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<-plugin.monitorNetDirChan
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}
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// InitCNI takes the plugin directory and cni directories where the cni files should be searched for
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// Returns a valid plugin object and any error
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func InitCNI(pluginDir string, cniDirs ...string) (CNIPlugin, error) {
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plugin := probeNetworkPluginsWithVendorCNIDirPrefix(pluginDir, cniDirs, "")
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var err error
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||||||
|
plugin.nsenterPath, err = exec.LookPath("nsenter")
|
||||||
|
if err != nil {
|
||||||
|
return nil, err
|
||||||
|
}
|
||||||
|
|
||||||
|
// check if a default network exists, otherwise dump the CNI search and return a noop plugin
|
||||||
|
_, err = getDefaultCNINetwork(plugin.pluginDir, plugin.cniDirs, plugin.vendorCNIDirPrefix)
|
||||||
|
if err != nil {
|
||||||
|
if err != errMissingDefaultNetwork {
|
||||||
|
logrus.Warningf("Error in finding usable CNI plugin - %v", err)
|
||||||
|
// create a noop plugin instead
|
||||||
|
return &cniNoOp{}, nil
|
||||||
|
}
|
||||||
|
|
||||||
|
// We do not have a default network, we start the monitoring thread.
|
||||||
|
go plugin.monitorNetDir()
|
||||||
|
}
|
||||||
|
|
||||||
|
return plugin, nil
|
||||||
|
}
|
||||||
|
|
||||||
|
func probeNetworkPluginsWithVendorCNIDirPrefix(pluginDir string, cniDirs []string, vendorCNIDirPrefix string) *cniNetworkPlugin {
|
||||||
|
plugin := &cniNetworkPlugin{
|
||||||
|
defaultNetwork: nil,
|
||||||
|
loNetwork: getLoNetwork(cniDirs, vendorCNIDirPrefix),
|
||||||
|
pluginDir: pluginDir,
|
||||||
|
cniDirs: cniDirs,
|
||||||
|
vendorCNIDirPrefix: vendorCNIDirPrefix,
|
||||||
|
monitorNetDirChan: make(chan struct{}),
|
||||||
|
pods: make(map[string]*podLock),
|
||||||
|
}
|
||||||
|
|
||||||
|
// sync NetworkConfig in best effort during probing.
|
||||||
|
if err := plugin.syncNetworkConfig(); err != nil {
|
||||||
|
logrus.Error(err)
|
||||||
|
}
|
||||||
|
return plugin
|
||||||
|
}
|
||||||
|
|
||||||
|
func getDefaultCNINetwork(pluginDir string, cniDirs []string, vendorCNIDirPrefix string) (*cniNetwork, error) {
|
||||||
|
if pluginDir == "" {
|
||||||
|
pluginDir = DefaultNetDir
|
||||||
|
}
|
||||||
|
if len(cniDirs) == 0 {
|
||||||
|
cniDirs = []string{DefaultCNIDir}
|
||||||
|
}
|
||||||
|
|
||||||
|
files, err := libcni.ConfFiles(pluginDir, []string{".conf", ".conflist", ".json"})
|
||||||
|
switch {
|
||||||
|
case err != nil:
|
||||||
|
return nil, err
|
||||||
|
case len(files) == 0:
|
||||||
|
return nil, errMissingDefaultNetwork
|
||||||
|
}
|
||||||
|
|
||||||
|
sort.Strings(files)
|
||||||
|
for _, confFile := range files {
|
||||||
|
var confList *libcni.NetworkConfigList
|
||||||
|
if strings.HasSuffix(confFile, ".conflist") {
|
||||||
|
confList, err = libcni.ConfListFromFile(confFile)
|
||||||
|
if err != nil {
|
||||||
|
logrus.Warningf("Error loading CNI config list file %s: %v", confFile, err)
|
||||||
|
continue
|
||||||
|
}
|
||||||
|
} else {
|
||||||
|
conf, err := libcni.ConfFromFile(confFile)
|
||||||
|
if err != nil {
|
||||||
|
logrus.Warningf("Error loading CNI config file %s: %v", confFile, err)
|
||||||
|
continue
|
||||||
|
}
|
||||||
|
if conf.Network.Type == "" {
|
||||||
|
logrus.Warningf("Error loading CNI config file %s: no 'type'; perhaps this is a .conflist?", confFile)
|
||||||
|
continue
|
||||||
|
}
|
||||||
|
confList, err = libcni.ConfListFromConf(conf)
|
||||||
|
if err != nil {
|
||||||
|
logrus.Warningf("Error converting CNI config file %s to list: %v", confFile, err)
|
||||||
|
continue
|
||||||
|
}
|
||||||
|
}
|
||||||
|
if len(confList.Plugins) == 0 {
|
||||||
|
logrus.Warningf("CNI config list %s has no networks, skipping", confFile)
|
||||||
|
continue
|
||||||
|
}
|
||||||
|
logrus.Infof("CNI network %s (type=%v) is used from %s", confList.Name, confList.Plugins[0].Network.Type, confFile)
|
||||||
|
// Search for vendor-specific plugins as well as default plugins in the CNI codebase.
|
||||||
|
vendorDir := vendorCNIDir(vendorCNIDirPrefix, confList.Plugins[0].Network.Type)
|
||||||
|
cninet := &libcni.CNIConfig{
|
||||||
|
Path: append(cniDirs, vendorDir),
|
||||||
|
}
|
||||||
|
network := &cniNetwork{name: confList.Name, NetworkConfig: confList, CNIConfig: cninet}
|
||||||
|
return network, nil
|
||||||
|
}
|
||||||
|
return nil, fmt.Errorf("No valid networks found in %s", pluginDir)
|
||||||
|
}
|
||||||
|
|
||||||
|
func vendorCNIDir(prefix, pluginType string) string {
|
||||||
|
return fmt.Sprintf(VendorCNIDirTemplate, prefix, pluginType)
|
||||||
|
}
|
||||||
|
|
||||||
|
func getLoNetwork(cniDirs []string, vendorDirPrefix string) *cniNetwork {
|
||||||
|
if len(cniDirs) == 0 {
|
||||||
|
cniDirs = []string{DefaultCNIDir}
|
||||||
|
}
|
||||||
|
|
||||||
|
loConfig, err := libcni.ConfListFromBytes([]byte(`{
|
||||||
|
"cniVersion": "0.2.0",
|
||||||
|
"name": "cni-loopback",
|
||||||
|
"plugins": [{
|
||||||
|
"type": "loopback"
|
||||||
|
}]
|
||||||
|
}`))
|
||||||
|
if err != nil {
|
||||||
|
// The hardcoded config above should always be valid and unit tests will
|
||||||
|
// catch this
|
||||||
|
panic(err)
|
||||||
|
}
|
||||||
|
vendorDir := vendorCNIDir(vendorDirPrefix, loConfig.Plugins[0].Network.Type)
|
||||||
|
cninet := &libcni.CNIConfig{
|
||||||
|
Path: append(cniDirs, vendorDir),
|
||||||
|
}
|
||||||
|
loNetwork := &cniNetwork{
|
||||||
|
name: "lo",
|
||||||
|
NetworkConfig: loConfig,
|
||||||
|
CNIConfig: cninet,
|
||||||
|
}
|
||||||
|
|
||||||
|
return loNetwork
|
||||||
|
}
|
||||||
|
|
||||||
|
func (plugin *cniNetworkPlugin) syncNetworkConfig() error {
|
||||||
|
network, err := getDefaultCNINetwork(plugin.pluginDir, plugin.cniDirs, plugin.vendorCNIDirPrefix)
|
||||||
|
if err != nil {
|
||||||
|
logrus.Errorf("error updating cni config: %s", err)
|
||||||
|
return err
|
||||||
|
}
|
||||||
|
plugin.setDefaultNetwork(network)
|
||||||
|
|
||||||
|
return nil
|
||||||
|
}
|
||||||
|
|
||||||
|
func (plugin *cniNetworkPlugin) getDefaultNetwork() *cniNetwork {
|
||||||
|
plugin.RLock()
|
||||||
|
defer plugin.RUnlock()
|
||||||
|
return plugin.defaultNetwork
|
||||||
|
}
|
||||||
|
|
||||||
|
func (plugin *cniNetworkPlugin) setDefaultNetwork(n *cniNetwork) {
|
||||||
|
plugin.Lock()
|
||||||
|
defer plugin.Unlock()
|
||||||
|
plugin.defaultNetwork = n
|
||||||
|
}
|
||||||
|
|
||||||
|
func (plugin *cniNetworkPlugin) checkInitialized() error {
|
||||||
|
if plugin.getDefaultNetwork() == nil {
|
||||||
|
return errors.New("cni config uninitialized")
|
||||||
|
}
|
||||||
|
return nil
|
||||||
|
}
|
||||||
|
|
||||||
|
func (plugin *cniNetworkPlugin) Name() string {
|
||||||
|
return CNIPluginName
|
||||||
|
}
|
||||||
|
|
||||||
|
func (plugin *cniNetworkPlugin) SetUpPod(podNetwork PodNetwork) error {
|
||||||
|
if err := plugin.checkInitialized(); err != nil {
|
||||||
|
return err
|
||||||
|
}
|
||||||
|
|
||||||
|
plugin.podLock(podNetwork).Lock()
|
||||||
|
defer plugin.podUnlock(podNetwork)
|
||||||
|
|
||||||
|
_, err := plugin.loNetwork.addToNetwork(podNetwork)
|
||||||
|
if err != nil {
|
||||||
|
logrus.Errorf("Error while adding to cni lo network: %s", err)
|
||||||
|
return err
|
||||||
|
}
|
||||||
|
|
||||||
|
_, err = plugin.getDefaultNetwork().addToNetwork(podNetwork)
|
||||||
|
if err != nil {
|
||||||
|
logrus.Errorf("Error while adding to cni network: %s", err)
|
||||||
|
return err
|
||||||
|
}
|
||||||
|
|
||||||
|
return err
|
||||||
|
}
|
||||||
|
|
||||||
|
func (plugin *cniNetworkPlugin) TearDownPod(podNetwork PodNetwork) error {
|
||||||
|
if err := plugin.checkInitialized(); err != nil {
|
||||||
|
return err
|
||||||
|
}
|
||||||
|
|
||||||
|
plugin.podLock(podNetwork).Lock()
|
||||||
|
defer plugin.podUnlock(podNetwork)
|
||||||
|
|
||||||
|
return plugin.getDefaultNetwork().deleteFromNetwork(podNetwork)
|
||||||
|
}
|
||||||
|
|
||||||
|
// TODO: Use the addToNetwork function to obtain the IP of the Pod. That will assume idempotent ADD call to the plugin.
|
||||||
|
// Also fix the runtime's call to Status function to be done only in the case that the IP is lost, no need to do periodic calls
|
||||||
|
func (plugin *cniNetworkPlugin) GetPodNetworkStatus(podNetwork PodNetwork) (string, error) {
|
||||||
|
plugin.podLock(podNetwork).Lock()
|
||||||
|
defer plugin.podUnlock(podNetwork)
|
||||||
|
|
||||||
|
ip, err := getContainerIP(plugin.nsenterPath, podNetwork.NetNS, DefaultInterfaceName, "-4")
|
||||||
|
if err != nil {
|
||||||
|
return "", err
|
||||||
|
}
|
||||||
|
|
||||||
|
return ip.String(), nil
|
||||||
|
}
|
||||||
|
|
||||||
|
func (network *cniNetwork) addToNetwork(podNetwork PodNetwork) (cnitypes.Result, error) {
|
||||||
|
rt, err := buildCNIRuntimeConf(podNetwork)
|
||||||
|
if err != nil {
|
||||||
|
logrus.Errorf("Error adding network: %v", err)
|
||||||
|
return nil, err
|
||||||
|
}
|
||||||
|
|
||||||
|
netconf, cninet := network.NetworkConfig, network.CNIConfig
|
||||||
|
logrus.Infof("About to add CNI network %s (type=%v)", netconf.Name, netconf.Plugins[0].Network.Type)
|
||||||
|
res, err := cninet.AddNetworkList(netconf, rt)
|
||||||
|
if err != nil {
|
||||||
|
logrus.Errorf("Error adding network: %v", err)
|
||||||
|
return nil, err
|
||||||
|
}
|
||||||
|
|
||||||
|
return res, nil
|
||||||
|
}
|
||||||
|
|
||||||
|
func (network *cniNetwork) deleteFromNetwork(podNetwork PodNetwork) error {
|
||||||
|
rt, err := buildCNIRuntimeConf(podNetwork)
|
||||||
|
if err != nil {
|
||||||
|
logrus.Errorf("Error deleting network: %v", err)
|
||||||
|
return err
|
||||||
|
}
|
||||||
|
|
||||||
|
netconf, cninet := network.NetworkConfig, network.CNIConfig
|
||||||
|
logrus.Infof("About to del CNI network %s (type=%v)", netconf.Name, netconf.Plugins[0].Network.Type)
|
||||||
|
err = cninet.DelNetworkList(netconf, rt)
|
||||||
|
if err != nil {
|
||||||
|
logrus.Errorf("Error deleting network: %v", err)
|
||||||
|
return err
|
||||||
|
}
|
||||||
|
return nil
|
||||||
|
}
|
||||||
|
|
||||||
|
func buildCNIRuntimeConf(podNetwork PodNetwork) (*libcni.RuntimeConf, error) {
|
||||||
|
logrus.Infof("Got pod network %+v", podNetwork)
|
||||||
|
|
||||||
|
rt := &libcni.RuntimeConf{
|
||||||
|
ContainerID: podNetwork.ID,
|
||||||
|
NetNS: podNetwork.NetNS,
|
||||||
|
IfName: DefaultInterfaceName,
|
||||||
|
Args: [][2]string{
|
||||||
|
{"IgnoreUnknown", "1"},
|
||||||
|
{"K8S_POD_NAMESPACE", podNetwork.Namespace},
|
||||||
|
{"K8S_POD_NAME", podNetwork.Name},
|
||||||
|
{"K8S_POD_INFRA_CONTAINER_ID", podNetwork.ID},
|
||||||
|
},
|
||||||
|
}
|
||||||
|
|
||||||
|
if len(podNetwork.PortMappings) == 0 {
|
||||||
|
return rt, nil
|
||||||
|
}
|
||||||
|
|
||||||
|
rt.CapabilityArgs = map[string]interface{}{
|
||||||
|
"portMappings": podNetwork.PortMappings,
|
||||||
|
}
|
||||||
|
return rt, nil
|
||||||
|
}
|
||||||
|
|
||||||
|
func (plugin *cniNetworkPlugin) Status() error {
|
||||||
|
return plugin.checkInitialized()
|
||||||
|
}
|
62
vendor/github.com/cri-o/ocicni/pkg/ocicni/types.go
generated
vendored
Normal file
62
vendor/github.com/cri-o/ocicni/pkg/ocicni/types.go
generated
vendored
Normal file
|
@ -0,0 +1,62 @@
|
||||||
|
package ocicni
|
||||||
|
|
||||||
|
const (
|
||||||
|
// DefaultInterfaceName is the string to be used for the interface name inside the net namespace
|
||||||
|
DefaultInterfaceName = "eth0"
|
||||||
|
// CNIPluginName is the default name of the plugin
|
||||||
|
CNIPluginName = "cni"
|
||||||
|
// DefaultNetDir is the place to look for CNI Network
|
||||||
|
DefaultNetDir = "/etc/cni/net.d"
|
||||||
|
// DefaultCNIDir is the place to look for cni config files
|
||||||
|
DefaultCNIDir = "/opt/cni/bin"
|
||||||
|
// VendorCNIDirTemplate is the template for looking up vendor specific cni config/executable files
|
||||||
|
VendorCNIDirTemplate = "%s/opt/%s/bin"
|
||||||
|
)
|
||||||
|
|
||||||
|
// PortMapping maps to the standard CNI portmapping Capability
|
||||||
|
// see: https://github.com/containernetworking/cni/blob/master/CONVENTIONS.md
|
||||||
|
type PortMapping struct {
|
||||||
|
// HostPort is the port number on the host.
|
||||||
|
HostPort int32 `json:"hostPort"`
|
||||||
|
// ContainerPort is the port number inside the sandbox.
|
||||||
|
ContainerPort int32 `json:"containerPort"`
|
||||||
|
// Protocol is the protocol of the port mapping.
|
||||||
|
Protocol string `json:"protocol"`
|
||||||
|
// HostIP is the host ip to use.
|
||||||
|
HostIP string `json:"hostIP"`
|
||||||
|
}
|
||||||
|
|
||||||
|
// PodNetwork configures the network of a pod sandbox.
|
||||||
|
type PodNetwork struct {
|
||||||
|
// Name is the name of the sandbox.
|
||||||
|
Name string
|
||||||
|
// Namespace is the namespace of the sandbox.
|
||||||
|
Namespace string
|
||||||
|
// ID is the id of the sandbox container.
|
||||||
|
ID string
|
||||||
|
// NetNS is the network namespace path of the sandbox.
|
||||||
|
NetNS string
|
||||||
|
// PortMappings is the port mapping of the sandbox.
|
||||||
|
PortMappings []PortMapping
|
||||||
|
}
|
||||||
|
|
||||||
|
// CNIPlugin is the interface that needs to be implemented by a plugin
|
||||||
|
type CNIPlugin interface {
|
||||||
|
// Name returns the plugin's name. This will be used when searching
|
||||||
|
// for a plugin by name, e.g.
|
||||||
|
Name() string
|
||||||
|
|
||||||
|
// SetUpPod is the method called after the sandbox container of
|
||||||
|
// the pod has been created but before the other containers of the
|
||||||
|
// pod are launched.
|
||||||
|
SetUpPod(network PodNetwork) error
|
||||||
|
|
||||||
|
// TearDownPod is the method called before a pod's sandbox container will be deleted
|
||||||
|
TearDownPod(network PodNetwork) error
|
||||||
|
|
||||||
|
// Status is the method called to obtain the ipv4 or ipv6 addresses of the pod sandbox
|
||||||
|
GetPodNetworkStatus(network PodNetwork) (string, error)
|
||||||
|
|
||||||
|
// NetworkStatus returns error if the network plugin is in error state
|
||||||
|
Status() error
|
||||||
|
}
|
32
vendor/github.com/cri-o/ocicni/pkg/ocicni/util.go
generated
vendored
Normal file
32
vendor/github.com/cri-o/ocicni/pkg/ocicni/util.go
generated
vendored
Normal file
|
@ -0,0 +1,32 @@
|
||||||
|
package ocicni
|
||||||
|
|
||||||
|
import (
|
||||||
|
"fmt"
|
||||||
|
"net"
|
||||||
|
"os/exec"
|
||||||
|
"strings"
|
||||||
|
)
|
||||||
|
|
||||||
|
func getContainerIP(nsenterPath, netnsPath, interfaceName, addrType string) (net.IP, error) {
|
||||||
|
// Try to retrieve ip inside container network namespace
|
||||||
|
output, err := exec.Command(nsenterPath, fmt.Sprintf("--net=%s", netnsPath), "-F", "--",
|
||||||
|
"ip", "-o", addrType, "addr", "show", "dev", interfaceName, "scope", "global").CombinedOutput()
|
||||||
|
if err != nil {
|
||||||
|
return nil, fmt.Errorf("Unexpected command output %s with error: %v", output, err)
|
||||||
|
}
|
||||||
|
|
||||||
|
lines := strings.Split(string(output), "\n")
|
||||||
|
if len(lines) < 1 {
|
||||||
|
return nil, fmt.Errorf("Unexpected command output %s", output)
|
||||||
|
}
|
||||||
|
fields := strings.Fields(lines[0])
|
||||||
|
if len(fields) < 4 {
|
||||||
|
return nil, fmt.Errorf("Unexpected address output %s ", lines[0])
|
||||||
|
}
|
||||||
|
ip, _, err := net.ParseCIDR(fields[3])
|
||||||
|
if err != nil {
|
||||||
|
return nil, fmt.Errorf("CNI failed to parse ip from output %s due to %v", output, err)
|
||||||
|
}
|
||||||
|
|
||||||
|
return ip, nil
|
||||||
|
}
|
Loading…
Add table
Reference in a new issue