From 0e48ec31f31b8e51b6aae00fd8906b8bda02d858 Mon Sep 17 00:00:00 2001 From: Dan Williams Date: Tue, 11 Jun 2019 09:39:37 -0500 Subject: [PATCH] vendor: update containernetworking/cni to v0.7.1 --- go.mod | 4 +- go.sum | 4 +- .../containernetworking/cni/libcni/api.go | 384 +++++++++++++++--- .../containernetworking/cni/libcni/conf.go | 18 +- .../cni/pkg/invoke/args.go | 68 +++- .../cni/pkg/invoke/delegate.go | 57 ++- .../cni/pkg/invoke/exec.go | 105 +++-- .../cni/pkg/invoke/os_unix.go | 2 +- .../cni/pkg/invoke/raw_exec.go | 25 +- .../cni/pkg/types/020/types.go | 7 +- .../cni/pkg/types/current/types.go | 29 +- .../cni/pkg/types/types.go | 26 +- .../cni/pkg/version/plugin.go | 63 +++ .../cni/pkg/version/version.go | 26 +- vendor/modules.txt | 2 +- 15 files changed, 664 insertions(+), 156 deletions(-) diff --git a/go.mod b/go.mod index 5b509b83c84..5278f9c78b6 100644 --- a/go.mod +++ b/go.mod @@ -36,7 +36,7 @@ require ( github.com/containerd/console v0.0.0-20170925154832-84eeaae905fa // indirect github.com/containerd/containerd v1.0.2 // indirect github.com/containerd/typeurl v0.0.0-20190228175220-2a93cfde8c20 // indirect - github.com/containernetworking/cni v0.6.0 + github.com/containernetworking/cni v0.7.1 github.com/coreos/etcd v3.3.13+incompatible github.com/coreos/go-semver v0.3.0 github.com/coreos/go-systemd v0.0.0-20180511133405-39ca1b05acc7 @@ -225,7 +225,7 @@ replace ( github.com/containerd/console => github.com/containerd/console v0.0.0-20170925154832-84eeaae905fa github.com/containerd/containerd => github.com/containerd/containerd v1.0.2 github.com/containerd/typeurl => github.com/containerd/typeurl v0.0.0-20190228175220-2a93cfde8c20 - github.com/containernetworking/cni => github.com/containernetworking/cni v0.6.0 + github.com/containernetworking/cni => github.com/containernetworking/cni v0.7.1 github.com/coreos/bbolt => github.com/coreos/bbolt v1.3.1-coreos.6 github.com/coreos/etcd => github.com/coreos/etcd v3.3.13+incompatible github.com/coreos/go-etcd => github.com/coreos/go-etcd v2.0.0+incompatible diff --git a/go.sum b/go.sum index 52424b1e150..33957eae6cf 100644 --- a/go.sum +++ b/go.sum @@ -75,8 +75,8 @@ github.com/containerd/containerd v1.0.2 h1:AcqeeOunmUuo2CvPPtHMhWn7mi54clu+j9yqX github.com/containerd/containerd v1.0.2/go.mod h1:bC6axHOhabU15QhwfG7w5PipXdVtMXFTttgp+kVtyUA= github.com/containerd/typeurl v0.0.0-20190228175220-2a93cfde8c20 h1:14r0i3IeJj6zkNLigAJiv/TWSR8EY+pxIjv5tFiT+n8= github.com/containerd/typeurl v0.0.0-20190228175220-2a93cfde8c20/go.mod h1:Cm3kwCdlkCfMSHURc+r6fwoGH6/F1hH3S4sg0rLFWPc= -github.com/containernetworking/cni v0.6.0 h1:FXICGBZNMtdHlW65trpoHviHctQD3seWhRRcqp2hMOU= -github.com/containernetworking/cni v0.6.0/go.mod h1:LGwApLUm2FpoOfxTDEeq8T9ipbpZ61X79hmU3w8FmsY= +github.com/containernetworking/cni v0.7.1 h1:fE3r16wpSEyaqY4Z4oFrLMmIGfBYIKpPrHK31EJ9FzE= +github.com/containernetworking/cni v0.7.1/go.mod h1:LGwApLUm2FpoOfxTDEeq8T9ipbpZ61X79hmU3w8FmsY= github.com/coreos/bbolt v1.3.1-coreos.6 h1:uTXKg9gY70s9jMAKdfljFQcuh4e/BXOM+V+d00KFj3A= github.com/coreos/bbolt v1.3.1-coreos.6/go.mod h1:iRUV2dpdMOn7Bo10OQBFzIJO9kkE559Wcmn+qkEiiKk= github.com/coreos/etcd v3.3.13+incompatible h1:8F3hqu9fGYLBifCmRCJsicFqDx/D68Rt3q1JMazcgBQ= diff --git a/vendor/github.com/containernetworking/cni/libcni/api.go b/vendor/github.com/containernetworking/cni/libcni/api.go index a23cbb2c57b..0f14d3427e9 100644 --- a/vendor/github.com/containernetworking/cni/libcni/api.go +++ b/vendor/github.com/containernetworking/cni/libcni/api.go @@ -15,7 +15,12 @@ package libcni import ( + "context" + "encoding/json" + "fmt" + "io/ioutil" "os" + "path/filepath" "strings" "github.com/containernetworking/cni/pkg/invoke" @@ -23,6 +28,14 @@ import ( "github.com/containernetworking/cni/pkg/version" ) +var ( + CacheDir = "/var/lib/cni" +) + +// A RuntimeConf holds the arguments to one invocation of a CNI plugin +// excepting the network configuration, with the nested exception that +// the `runtimeConfig` from the network configuration is included +// here. type RuntimeConf struct { ContainerID string NetNS string @@ -34,6 +47,9 @@ type RuntimeConf struct { // in this map which match the capabilities of the plugin are passed // to the plugin CapabilityArgs map[string]interface{} + + // A cache directory in which to library data. Defaults to CacheDir + CacheDir string } type NetworkConfig struct { @@ -42,33 +58,52 @@ type NetworkConfig struct { } type NetworkConfigList struct { - Name string - CNIVersion string - Plugins []*NetworkConfig - Bytes []byte + Name string + CNIVersion string + DisableCheck bool + Plugins []*NetworkConfig + Bytes []byte } type CNI interface { - AddNetworkList(net *NetworkConfigList, rt *RuntimeConf) (types.Result, error) - DelNetworkList(net *NetworkConfigList, rt *RuntimeConf) error + AddNetworkList(ctx context.Context, net *NetworkConfigList, rt *RuntimeConf) (types.Result, error) + CheckNetworkList(ctx context.Context, net *NetworkConfigList, rt *RuntimeConf) error + DelNetworkList(ctx context.Context, net *NetworkConfigList, rt *RuntimeConf) error + GetNetworkListCachedResult(net *NetworkConfigList, rt *RuntimeConf) (types.Result, error) - AddNetwork(net *NetworkConfig, rt *RuntimeConf) (types.Result, error) - DelNetwork(net *NetworkConfig, rt *RuntimeConf) error + AddNetwork(ctx context.Context, net *NetworkConfig, rt *RuntimeConf) (types.Result, error) + CheckNetwork(ctx context.Context, net *NetworkConfig, rt *RuntimeConf) error + DelNetwork(ctx context.Context, net *NetworkConfig, rt *RuntimeConf) error + GetNetworkCachedResult(net *NetworkConfig, rt *RuntimeConf) (types.Result, error) + + ValidateNetworkList(ctx context.Context, net *NetworkConfigList) ([]string, error) + ValidateNetwork(ctx context.Context, net *NetworkConfig) ([]string, error) } type CNIConfig struct { Path []string + exec invoke.Exec } // CNIConfig implements the CNI interface var _ CNI = &CNIConfig{} -func buildOneConfig(list *NetworkConfigList, orig *NetworkConfig, prevResult types.Result, rt *RuntimeConf) (*NetworkConfig, error) { +// NewCNIConfig returns a new CNIConfig object that will search for plugins +// in the given paths and use the given exec interface to run those plugins, +// or if the exec interface is not given, will use a default exec handler. +func NewCNIConfig(path []string, exec invoke.Exec) *CNIConfig { + return &CNIConfig{ + Path: path, + exec: exec, + } +} + +func buildOneConfig(name, cniVersion string, orig *NetworkConfig, prevResult types.Result, rt *RuntimeConf) (*NetworkConfig, error) { var err error inject := map[string]interface{}{ - "name": list.Name, - "cniVersion": list.CNIVersion, + "name": name, + "cniVersion": cniVersion, } // Add previous plugin result if prevResult != nil { @@ -92,7 +127,7 @@ func buildOneConfig(list *NetworkConfigList, orig *NetworkConfig, prevResult typ // 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 +// sent to the plugin via JSON on stdin. For example, 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. @@ -119,45 +154,154 @@ func injectRuntimeConfig(orig *NetworkConfig, rt *RuntimeConf) (*NetworkConfig, return orig, nil } +// ensure we have a usable exec if the CNIConfig was not given one +func (c *CNIConfig) ensureExec() invoke.Exec { + if c.exec == nil { + c.exec = &invoke.DefaultExec{ + RawExec: &invoke.RawExec{Stderr: os.Stderr}, + PluginDecoder: version.PluginDecoder{}, + } + } + return c.exec +} + +func getResultCacheFilePath(netName string, rt *RuntimeConf) string { + cacheDir := rt.CacheDir + if cacheDir == "" { + cacheDir = CacheDir + } + return filepath.Join(cacheDir, "results", fmt.Sprintf("%s-%s-%s", netName, rt.ContainerID, rt.IfName)) +} + +func setCachedResult(result types.Result, netName string, rt *RuntimeConf) error { + data, err := json.Marshal(result) + if err != nil { + return err + } + fname := getResultCacheFilePath(netName, rt) + if err := os.MkdirAll(filepath.Dir(fname), 0700); err != nil { + return err + } + return ioutil.WriteFile(fname, data, 0600) +} + +func delCachedResult(netName string, rt *RuntimeConf) error { + fname := getResultCacheFilePath(netName, rt) + return os.Remove(fname) +} + +func getCachedResult(netName, cniVersion string, rt *RuntimeConf) (types.Result, error) { + fname := getResultCacheFilePath(netName, rt) + data, err := ioutil.ReadFile(fname) + if err != nil { + // Ignore read errors; the cached result may not exist on-disk + return nil, nil + } + + // Read the version of the cached result + decoder := version.ConfigDecoder{} + resultCniVersion, err := decoder.Decode(data) + if err != nil { + return nil, err + } + + // Ensure we can understand the result + result, err := version.NewResult(resultCniVersion, data) + if err != nil { + return nil, err + } + + // Convert to the config version to ensure plugins get prevResult + // in the same version as the config. The cached result version + // should match the config version unless the config was changed + // while the container was running. + result, err = result.GetAsVersion(cniVersion) + if err != nil && resultCniVersion != cniVersion { + return nil, fmt.Errorf("failed to convert cached result version %q to config version %q: %v", resultCniVersion, cniVersion, err) + } + return result, err +} + +// GetNetworkListCachedResult returns the cached Result of the previous +// previous AddNetworkList() operation for a network list, or an error. +func (c *CNIConfig) GetNetworkListCachedResult(list *NetworkConfigList, rt *RuntimeConf) (types.Result, error) { + return getCachedResult(list.Name, list.CNIVersion, rt) +} + +// GetNetworkCachedResult returns the cached Result of the previous +// previous AddNetwork() operation for a network, or an error. +func (c *CNIConfig) GetNetworkCachedResult(net *NetworkConfig, rt *RuntimeConf) (types.Result, error) { + return getCachedResult(net.Network.Name, net.Network.CNIVersion, rt) +} + +func (c *CNIConfig) addNetwork(ctx context.Context, name, cniVersion string, net *NetworkConfig, prevResult types.Result, rt *RuntimeConf) (types.Result, error) { + c.ensureExec() + pluginPath, err := c.exec.FindInPath(net.Network.Type, c.Path) + if err != nil { + return nil, err + } + + newConf, err := buildOneConfig(name, cniVersion, net, prevResult, rt) + if err != nil { + return nil, err + } + + return invoke.ExecPluginWithResult(ctx, pluginPath, newConf.Bytes, c.args("ADD", rt), c.exec) +} + // 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 +func (c *CNIConfig) AddNetworkList(ctx context.Context, list *NetworkConfigList, rt *RuntimeConf) (types.Result, error) { + var err error + var result 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)) + result, err = c.addNetwork(ctx, list.Name, list.CNIVersion, net, result, rt) if err != nil { return nil, err } } - return prevResult, nil + if err = setCachedResult(result, list.Name, rt); err != nil { + return nil, fmt.Errorf("failed to set network %q cached result: %v", list.Name, err) + } + + return result, 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] +func (c *CNIConfig) checkNetwork(ctx context.Context, name, cniVersion string, net *NetworkConfig, prevResult types.Result, rt *RuntimeConf) error { + c.ensureExec() + pluginPath, err := c.exec.FindInPath(net.Network.Type, c.Path) + if err != nil { + return err + } - pluginPath, err := invoke.FindInPath(net.Network.Type, c.Path) - if err != nil { - return err - } + newConf, err := buildOneConfig(name, cniVersion, net, prevResult, rt) + if err != nil { + return err + } - newConf, err := buildOneConfig(list, net, nil, rt) - if err != nil { - return err - } + return invoke.ExecPluginWithoutResult(ctx, pluginPath, newConf.Bytes, c.args("CHECK", rt), c.exec) +} - if err := invoke.ExecPluginWithoutResult(pluginPath, newConf.Bytes, c.args("DEL", rt)); err != nil { +// CheckNetworkList executes a sequence of plugins with the CHECK command +func (c *CNIConfig) CheckNetworkList(ctx context.Context, list *NetworkConfigList, rt *RuntimeConf) error { + // CHECK was added in CNI spec version 0.4.0 and higher + if gtet, err := version.GreaterThanOrEqualTo(list.CNIVersion, "0.4.0"); err != nil { + return err + } else if !gtet { + return fmt.Errorf("configuration version %q does not support the CHECK command", list.CNIVersion) + } + + if list.DisableCheck { + return nil + } + + cachedResult, err := getCachedResult(list.Name, list.CNIVersion, rt) + if err != nil { + return fmt.Errorf("failed to get network %q cached result: %v", list.Name, err) + } + + for _, net := range list.Plugins { + if err := c.checkNetwork(ctx, list.Name, list.CNIVersion, net, cachedResult, rt); err != nil { return err } } @@ -165,45 +309,179 @@ func (c *CNIConfig) DelNetworkList(list *NetworkConfigList, rt *RuntimeConf) err return nil } +func (c *CNIConfig) delNetwork(ctx context.Context, name, cniVersion string, net *NetworkConfig, prevResult types.Result, rt *RuntimeConf) error { + c.ensureExec() + pluginPath, err := c.exec.FindInPath(net.Network.Type, c.Path) + if err != nil { + return err + } + + newConf, err := buildOneConfig(name, cniVersion, net, prevResult, rt) + if err != nil { + return err + } + + return invoke.ExecPluginWithoutResult(ctx, pluginPath, newConf.Bytes, c.args("DEL", rt), c.exec) +} + +// DelNetworkList executes a sequence of plugins with the DEL command +func (c *CNIConfig) DelNetworkList(ctx context.Context, list *NetworkConfigList, rt *RuntimeConf) error { + var cachedResult types.Result + + // Cached result on DEL was added in CNI spec version 0.4.0 and higher + if gtet, err := version.GreaterThanOrEqualTo(list.CNIVersion, "0.4.0"); err != nil { + return err + } else if gtet { + cachedResult, err = getCachedResult(list.Name, list.CNIVersion, rt) + if err != nil { + return fmt.Errorf("failed to get network %q cached result: %v", list.Name, err) + } + } + + for i := len(list.Plugins) - 1; i >= 0; i-- { + net := list.Plugins[i] + if err := c.delNetwork(ctx, list.Name, list.CNIVersion, net, cachedResult, rt); err != nil { + return err + } + } + _ = delCachedResult(list.Name, rt) + + return nil +} + // AddNetwork executes the plugin with the ADD command -func (c *CNIConfig) AddNetwork(net *NetworkConfig, rt *RuntimeConf) (types.Result, error) { - pluginPath, err := invoke.FindInPath(net.Network.Type, c.Path) +func (c *CNIConfig) AddNetwork(ctx context.Context, net *NetworkConfig, rt *RuntimeConf) (types.Result, error) { + result, err := c.addNetwork(ctx, net.Network.Name, net.Network.CNIVersion, net, nil, rt) if err != nil { return nil, err } - net, err = injectRuntimeConfig(net, rt) - if err != nil { - return nil, err + if err = setCachedResult(result, net.Network.Name, rt); err != nil { + return nil, fmt.Errorf("failed to set network %q cached result: %v", net.Network.Name, err) } - return invoke.ExecPluginWithResult(pluginPath, net.Bytes, c.args("ADD", rt)) + return result, nil +} + +// CheckNetwork executes the plugin with the CHECK command +func (c *CNIConfig) CheckNetwork(ctx context.Context, net *NetworkConfig, rt *RuntimeConf) error { + // CHECK was added in CNI spec version 0.4.0 and higher + if gtet, err := version.GreaterThanOrEqualTo(net.Network.CNIVersion, "0.4.0"); err != nil { + return err + } else if !gtet { + return fmt.Errorf("configuration version %q does not support the CHECK command", net.Network.CNIVersion) + } + + cachedResult, err := getCachedResult(net.Network.Name, net.Network.CNIVersion, rt) + if err != nil { + return fmt.Errorf("failed to get network %q cached result: %v", net.Network.Name, err) + } + return c.checkNetwork(ctx, net.Network.Name, net.Network.CNIVersion, net, cachedResult, rt) } // DelNetwork executes the plugin with the DEL command -func (c *CNIConfig) DelNetwork(net *NetworkConfig, rt *RuntimeConf) error { - pluginPath, err := invoke.FindInPath(net.Network.Type, c.Path) +func (c *CNIConfig) DelNetwork(ctx context.Context, net *NetworkConfig, rt *RuntimeConf) error { + var cachedResult types.Result + + // Cached result on DEL was added in CNI spec version 0.4.0 and higher + if gtet, err := version.GreaterThanOrEqualTo(net.Network.CNIVersion, "0.4.0"); err != nil { + return err + } else if gtet { + cachedResult, err = getCachedResult(net.Network.Name, net.Network.CNIVersion, rt) + if err != nil { + return fmt.Errorf("failed to get network %q cached result: %v", net.Network.Name, err) + } + } + + if err := c.delNetwork(ctx, net.Network.Name, net.Network.CNIVersion, net, cachedResult, rt); err != nil { + return err + } + _ = delCachedResult(net.Network.Name, rt) + return nil +} + +// ValidateNetworkList checks that a configuration is reasonably valid. +// - all the specified plugins exist on disk +// - every plugin supports the desired version. +// +// Returns a list of all capabilities supported by the configuration, or error +func (c *CNIConfig) ValidateNetworkList(ctx context.Context, list *NetworkConfigList) ([]string, error) { + version := list.CNIVersion + + // holding map for seen caps (in case of duplicates) + caps := map[string]interface{}{} + + errs := []error{} + for _, net := range list.Plugins { + if err := c.validatePlugin(ctx, net.Network.Type, version); err != nil { + errs = append(errs, err) + } + for c, enabled := range net.Network.Capabilities { + if !enabled { + continue + } + caps[c] = struct{}{} + } + } + + if len(errs) > 0 { + return nil, fmt.Errorf("%v", errs) + } + + // make caps list + cc := make([]string, 0, len(caps)) + for c := range caps { + cc = append(cc, c) + } + + return cc, nil +} + +// ValidateNetwork checks that a configuration is reasonably valid. +// It uses the same logic as ValidateNetworkList) +// Returns a list of capabilities +func (c *CNIConfig) ValidateNetwork(ctx context.Context, net *NetworkConfig) ([]string, error) { + caps := []string{} + for c, ok := range net.Network.Capabilities { + if ok { + caps = append(caps, c) + } + } + if err := c.validatePlugin(ctx, net.Network.Type, net.Network.CNIVersion); err != nil { + return nil, err + } + return caps, nil +} + +// validatePlugin checks that an individual plugin's configuration is sane +func (c *CNIConfig) validatePlugin(ctx context.Context, pluginName, expectedVersion string) error { + pluginPath, err := invoke.FindInPath(pluginName, c.Path) if err != nil { return err } - net, err = injectRuntimeConfig(net, rt) + vi, err := invoke.GetVersionInfo(ctx, pluginPath, c.exec) if err != nil { return err } - - return invoke.ExecPluginWithoutResult(pluginPath, net.Bytes, c.args("DEL", rt)) + for _, vers := range vi.SupportedVersions() { + if vers == expectedVersion { + return nil + } + } + return fmt.Errorf("plugin %s does not support config version %q", pluginName, expectedVersion) } // GetVersionInfo reports which versions of the CNI spec are supported by // the given plugin. -func (c *CNIConfig) GetVersionInfo(pluginType string) (version.PluginInfo, error) { - pluginPath, err := invoke.FindInPath(pluginType, c.Path) +func (c *CNIConfig) GetVersionInfo(ctx context.Context, pluginType string) (version.PluginInfo, error) { + c.ensureExec() + pluginPath, err := c.exec.FindInPath(pluginType, c.Path) if err != nil { return nil, err } - return invoke.GetVersionInfo(pluginPath) + return invoke.GetVersionInfo(ctx, pluginPath, c.exec) } // ===== diff --git a/vendor/github.com/containernetworking/cni/libcni/conf.go b/vendor/github.com/containernetworking/cni/libcni/conf.go index c7738c66503..ea56c509d01 100644 --- a/vendor/github.com/containernetworking/cni/libcni/conf.go +++ b/vendor/github.com/containernetworking/cni/libcni/conf.go @@ -45,6 +45,9 @@ func ConfFromBytes(bytes []byte) (*NetworkConfig, error) { if err := json.Unmarshal(bytes, &conf.Network); err != nil { return nil, fmt.Errorf("error parsing configuration: %s", err) } + if conf.Network.Type == "" { + return nil, fmt.Errorf("error parsing configuration: missing 'type'") + } return conf, nil } @@ -80,10 +83,19 @@ func ConfListFromBytes(bytes []byte) (*NetworkConfigList, error) { } } + disableCheck := false + if rawDisableCheck, ok := rawList["disableCheck"]; ok { + disableCheck, ok = rawDisableCheck.(bool) + if !ok { + return nil, fmt.Errorf("error parsing configuration list: invalid disableCheck type %T", rawDisableCheck) + } + } + list := &NetworkConfigList{ - Name: name, - CNIVersion: cniVersion, - Bytes: bytes, + Name: name, + DisableCheck: disableCheck, + CNIVersion: cniVersion, + Bytes: bytes, } var plugins []interface{} diff --git a/vendor/github.com/containernetworking/cni/pkg/invoke/args.go b/vendor/github.com/containernetworking/cni/pkg/invoke/args.go index 39b63972305..913528c1d59 100644 --- a/vendor/github.com/containernetworking/cni/pkg/invoke/args.go +++ b/vendor/github.com/containernetworking/cni/pkg/invoke/args.go @@ -15,6 +15,7 @@ package invoke import ( + "fmt" "os" "strings" ) @@ -22,6 +23,8 @@ import ( type CNIArgs interface { // For use with os/exec; i.e., return nil to inherit the // environment from this process + // For use in delegation; inherit the environment from this + // process and allow overrides AsEnv() []string } @@ -57,17 +60,17 @@ func (args *Args) AsEnv() []string { pluginArgsStr = stringify(args.PluginArgs) } - // 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 + // Duplicated values which come first will be overrided, so we must put the + // custom values in the end to avoid being overrided by the process environments. + 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, + ) + return dedupEnv(env) } // taken from rkt/networking/net_plugin.go @@ -80,3 +83,46 @@ func stringify(pluginArgs [][2]string) string { return strings.Join(entries, ";") } + +// DelegateArgs implements the CNIArgs interface +// used for delegation to inherit from environments +// and allow some overrides like CNI_COMMAND +var _ CNIArgs = &DelegateArgs{} + +type DelegateArgs struct { + Command string +} + +func (d *DelegateArgs) AsEnv() []string { + env := os.Environ() + + // The custom values should come in the end to override the existing + // process environment of the same key. + env = append(env, + "CNI_COMMAND="+d.Command, + ) + return dedupEnv(env) +} + +// dedupEnv returns a copy of env with any duplicates removed, in favor of later values. +// Items not of the normal environment "key=value" form are preserved unchanged. +func dedupEnv(env []string) []string { + out := make([]string, 0, len(env)) + envMap := map[string]string{} + + for _, kv := range env { + // find the first "=" in environment, if not, just keep it + eq := strings.Index(kv, "=") + if eq < 0 { + out = append(out, kv) + continue + } + envMap[kv[:eq]] = kv[eq+1:] + } + + for k, v := range envMap { + out = append(out, fmt.Sprintf("%s=%s", k, v)) + } + + return out +} diff --git a/vendor/github.com/containernetworking/cni/pkg/invoke/delegate.go b/vendor/github.com/containernetworking/cni/pkg/invoke/delegate.go index c78a69eebc8..8defe4dd398 100644 --- a/vendor/github.com/containernetworking/cni/pkg/invoke/delegate.go +++ b/vendor/github.com/containernetworking/cni/pkg/invoke/delegate.go @@ -15,39 +15,66 @@ package invoke import ( - "fmt" + "context" "os" "path/filepath" "github.com/containernetworking/cni/pkg/types" ) -func DelegateAdd(delegatePlugin string, netconf []byte) (types.Result, error) { - if os.Getenv("CNI_COMMAND") != "ADD" { - return nil, fmt.Errorf("CNI_COMMAND is not ADD") +func delegateCommon(delegatePlugin string, exec Exec) (string, Exec, error) { + if exec == nil { + exec = defaultExec } paths := filepath.SplitList(os.Getenv("CNI_PATH")) + pluginPath, err := exec.FindInPath(delegatePlugin, paths) + if err != nil { + return "", nil, err + } - pluginPath, err := FindInPath(delegatePlugin, paths) + return pluginPath, exec, nil +} + +// DelegateAdd calls the given delegate plugin with the CNI ADD action and +// JSON configuration +func DelegateAdd(ctx context.Context, delegatePlugin string, netconf []byte, exec Exec) (types.Result, error) { + pluginPath, realExec, err := delegateCommon(delegatePlugin, exec) if err != nil { return nil, err } - return ExecPluginWithResult(pluginPath, netconf, ArgsFromEnv()) + // DelegateAdd will override the original "CNI_COMMAND" env from process with ADD + return ExecPluginWithResult(ctx, pluginPath, netconf, delegateArgs("ADD"), realExec) } -func DelegateDel(delegatePlugin string, netconf []byte) error { - if os.Getenv("CNI_COMMAND") != "DEL" { - return fmt.Errorf("CNI_COMMAND is not DEL") - } - - paths := filepath.SplitList(os.Getenv("CNI_PATH")) - - pluginPath, err := FindInPath(delegatePlugin, paths) +// DelegateCheck calls the given delegate plugin with the CNI CHECK action and +// JSON configuration +func DelegateCheck(ctx context.Context, delegatePlugin string, netconf []byte, exec Exec) error { + pluginPath, realExec, err := delegateCommon(delegatePlugin, exec) if err != nil { return err } - return ExecPluginWithoutResult(pluginPath, netconf, ArgsFromEnv()) + // DelegateCheck will override the original CNI_COMMAND env from process with CHECK + return ExecPluginWithoutResult(ctx, pluginPath, netconf, delegateArgs("CHECK"), realExec) +} + +// DelegateDel calls the given delegate plugin with the CNI DEL action and +// JSON configuration +func DelegateDel(ctx context.Context, delegatePlugin string, netconf []byte, exec Exec) error { + pluginPath, realExec, err := delegateCommon(delegatePlugin, exec) + if err != nil { + return err + } + + // DelegateDel will override the original CNI_COMMAND env from process with DEL + return ExecPluginWithoutResult(ctx, pluginPath, netconf, delegateArgs("DEL"), realExec) +} + +// return CNIArgs used by delegation +func delegateArgs(action string) *DelegateArgs { + return &DelegateArgs{ + Command: action, + } } diff --git a/vendor/github.com/containernetworking/cni/pkg/invoke/exec.go b/vendor/github.com/containernetworking/cni/pkg/invoke/exec.go index fc47e7c8253..8e6d30b8290 100644 --- a/vendor/github.com/containernetworking/cni/pkg/invoke/exec.go +++ b/vendor/github.com/containernetworking/cni/pkg/invoke/exec.go @@ -15,6 +15,7 @@ package invoke import ( + "context" "fmt" "os" @@ -22,34 +23,62 @@ import ( "github.com/containernetworking/cni/pkg/version" ) -func ExecPluginWithResult(pluginPath string, netconf []byte, args CNIArgs) (types.Result, error) { - return defaultPluginExec.WithResult(pluginPath, netconf, args) +// Exec is an interface encapsulates all operations that deal with finding +// and executing a CNI plugin. Tests may provide a fake implementation +// to avoid writing fake plugins to temporary directories during the test. +type Exec interface { + ExecPlugin(ctx context.Context, pluginPath string, stdinData []byte, environ []string) ([]byte, error) + FindInPath(plugin string, paths []string) (string, error) + Decode(jsonBytes []byte) (version.PluginInfo, error) } -func ExecPluginWithoutResult(pluginPath string, netconf []byte, args CNIArgs) error { - return defaultPluginExec.WithoutResult(pluginPath, netconf, args) -} +// For example, a testcase could pass an instance of the following fakeExec +// object to ExecPluginWithResult() to verify the incoming stdin and environment +// and provide a tailored response: +// +//import ( +// "encoding/json" +// "path" +// "strings" +//) +// +//type fakeExec struct { +// version.PluginDecoder +//} +// +//func (f *fakeExec) ExecPlugin(pluginPath string, stdinData []byte, environ []string) ([]byte, error) { +// net := &types.NetConf{} +// err := json.Unmarshal(stdinData, net) +// if err != nil { +// return nil, fmt.Errorf("failed to unmarshal configuration: %v", err) +// } +// pluginName := path.Base(pluginPath) +// if pluginName != net.Type { +// return nil, fmt.Errorf("plugin name %q did not match config type %q", pluginName, net.Type) +// } +// for _, e := range environ { +// // Check environment for forced failure request +// parts := strings.Split(e, "=") +// if len(parts) > 0 && parts[0] == "FAIL" { +// return nil, fmt.Errorf("failed to execute plugin %s", pluginName) +// } +// } +// return []byte("{\"CNIVersion\":\"0.4.0\"}"), nil +//} +// +//func (f *fakeExec) FindInPath(plugin string, paths []string) (string, error) { +// if len(paths) > 0 { +// return path.Join(paths[0], plugin), nil +// } +// return "", fmt.Errorf("failed to find plugin %s in paths %v", plugin, paths) +//} -func GetVersionInfo(pluginPath string) (version.PluginInfo, error) { - return defaultPluginExec.GetVersionInfo(pluginPath) -} - -var defaultPluginExec = &PluginExec{ - RawExec: &RawExec{Stderr: os.Stderr}, - VersionDecoder: &version.PluginDecoder{}, -} - -type PluginExec struct { - RawExec interface { - ExecPlugin(pluginPath string, stdinData []byte, environ []string) ([]byte, error) +func ExecPluginWithResult(ctx context.Context, pluginPath string, netconf []byte, args CNIArgs, exec Exec) (types.Result, error) { + if exec == nil { + exec = defaultExec } - VersionDecoder interface { - Decode(jsonBytes []byte) (version.PluginInfo, error) - } -} -func (e *PluginExec) WithResult(pluginPath string, netconf []byte, args CNIArgs) (types.Result, error) { - stdoutBytes, err := e.RawExec.ExecPlugin(pluginPath, netconf, args.AsEnv()) + stdoutBytes, err := exec.ExecPlugin(ctx, pluginPath, netconf, args.AsEnv()) if err != nil { return nil, err } @@ -64,8 +93,11 @@ func (e *PluginExec) WithResult(pluginPath string, netconf []byte, args CNIArgs) return version.NewResult(confVersion, stdoutBytes) } -func (e *PluginExec) WithoutResult(pluginPath string, netconf []byte, args CNIArgs) error { - _, err := e.RawExec.ExecPlugin(pluginPath, netconf, args.AsEnv()) +func ExecPluginWithoutResult(ctx context.Context, pluginPath string, netconf []byte, args CNIArgs, exec Exec) error { + if exec == nil { + exec = defaultExec + } + _, err := exec.ExecPlugin(ctx, pluginPath, netconf, args.AsEnv()) return err } @@ -73,7 +105,10 @@ func (e *PluginExec) WithoutResult(pluginPath string, netconf []byte, args CNIAr // For recent-enough plugins, it uses the information returned by the VERSION // command. For older plugins which do not recognize that command, it reports // version 0.1.0 -func (e *PluginExec) GetVersionInfo(pluginPath string) (version.PluginInfo, error) { +func GetVersionInfo(ctx context.Context, pluginPath string, exec Exec) (version.PluginInfo, error) { + if exec == nil { + exec = defaultExec + } args := &Args{ Command: "VERSION", @@ -83,7 +118,7 @@ func (e *PluginExec) GetVersionInfo(pluginPath string) (version.PluginInfo, erro Path: "dummy", } stdin := []byte(fmt.Sprintf(`{"cniVersion":%q}`, version.Current())) - stdoutBytes, err := e.RawExec.ExecPlugin(pluginPath, stdin, args.AsEnv()) + stdoutBytes, err := exec.ExecPlugin(ctx, pluginPath, stdin, args.AsEnv()) if err != nil { if err.Error() == "unknown CNI_COMMAND: VERSION" { return version.PluginSupports("0.1.0"), nil @@ -91,5 +126,19 @@ func (e *PluginExec) GetVersionInfo(pluginPath string) (version.PluginInfo, erro return nil, err } - return e.VersionDecoder.Decode(stdoutBytes) + return exec.Decode(stdoutBytes) +} + +// DefaultExec is an object that implements the Exec interface which looks +// for and executes plugins from disk. +type DefaultExec struct { + *RawExec + version.PluginDecoder +} + +// DefaultExec implements the Exec interface +var _ Exec = &DefaultExec{} + +var defaultExec = &DefaultExec{ + RawExec: &RawExec{Stderr: os.Stderr}, } diff --git a/vendor/github.com/containernetworking/cni/pkg/invoke/os_unix.go b/vendor/github.com/containernetworking/cni/pkg/invoke/os_unix.go index bab5737a99d..9bcfb455367 100644 --- a/vendor/github.com/containernetworking/cni/pkg/invoke/os_unix.go +++ b/vendor/github.com/containernetworking/cni/pkg/invoke/os_unix.go @@ -12,7 +12,7 @@ // See the License for the specific language governing permissions and // limitations under the License. -// +build darwin dragonfly freebsd linux netbsd opensbd solaris +// +build darwin dragonfly freebsd linux netbsd openbsd solaris package invoke diff --git a/vendor/github.com/containernetworking/cni/pkg/invoke/raw_exec.go b/vendor/github.com/containernetworking/cni/pkg/invoke/raw_exec.go index 93f1e75d9fa..ad8498ba27d 100644 --- a/vendor/github.com/containernetworking/cni/pkg/invoke/raw_exec.go +++ b/vendor/github.com/containernetworking/cni/pkg/invoke/raw_exec.go @@ -16,6 +16,7 @@ package invoke import ( "bytes" + "context" "encoding/json" "fmt" "io" @@ -28,17 +29,13 @@ type RawExec struct { Stderr io.Writer } -func (e *RawExec) ExecPlugin(pluginPath string, stdinData []byte, environ []string) ([]byte, error) { +func (e *RawExec) ExecPlugin(ctx context.Context, pluginPath string, stdinData []byte, environ []string) ([]byte, error) { stdout := &bytes.Buffer{} - - c := exec.Cmd{ - Env: environ, - Path: pluginPath, - Args: []string{pluginPath}, - Stdin: bytes.NewBuffer(stdinData), - Stdout: stdout, - Stderr: e.Stderr, - } + c := exec.CommandContext(ctx, pluginPath) + c.Env = environ + c.Stdin = bytes.NewBuffer(stdinData) + c.Stdout = stdout + c.Stderr = e.Stderr if err := c.Run(); err != nil { return nil, pluginErr(err, stdout.Bytes()) } @@ -49,7 +46,9 @@ func (e *RawExec) ExecPlugin(pluginPath string, stdinData []byte, environ []stri func pluginErr(err error, output []byte) error { if _, ok := err.(*exec.ExitError); ok { emsg := types.Error{} - if perr := json.Unmarshal(output, &emsg); perr != nil { + if len(output) == 0 { + emsg.Msg = "netplugin failed with no error message" + } else if perr := json.Unmarshal(output, &emsg); perr != nil { emsg.Msg = fmt.Sprintf("netplugin failed but error parsing its diagnostic message %q: %v", string(output), perr) } return &emsg @@ -57,3 +56,7 @@ func pluginErr(err error, output []byte) error { return err } + +func (e *RawExec) FindInPath(plugin string, paths []string) (string, error) { + return FindInPath(plugin, paths) +} diff --git a/vendor/github.com/containernetworking/cni/pkg/types/020/types.go b/vendor/github.com/containernetworking/cni/pkg/types/020/types.go index 2833aba787f..53256167fad 100644 --- a/vendor/github.com/containernetworking/cni/pkg/types/020/types.go +++ b/vendor/github.com/containernetworking/cni/pkg/types/020/types.go @@ -17,6 +17,7 @@ package types020 import ( "encoding/json" "fmt" + "io" "net" "os" @@ -73,11 +74,15 @@ func (r *Result) GetAsVersion(version string) (types.Result, error) { } func (r *Result) Print() error { + return r.PrintTo(os.Stdout) +} + +func (r *Result) PrintTo(writer io.Writer) error { data, err := json.MarshalIndent(r, "", " ") if err != nil { return err } - _, err = os.Stdout.Write(data) + _, err = writer.Write(data) return err } diff --git a/vendor/github.com/containernetworking/cni/pkg/types/current/types.go b/vendor/github.com/containernetworking/cni/pkg/types/current/types.go index caac92ba77c..7267a2e6d1f 100644 --- a/vendor/github.com/containernetworking/cni/pkg/types/current/types.go +++ b/vendor/github.com/containernetworking/cni/pkg/types/current/types.go @@ -17,6 +17,7 @@ package current import ( "encoding/json" "fmt" + "io" "net" "os" @@ -24,9 +25,9 @@ import ( "github.com/containernetworking/cni/pkg/types/020" ) -const ImplementedSpecVersion string = "0.3.1" +const ImplementedSpecVersion string = "0.4.0" -var SupportedVersions = []string{"0.3.0", ImplementedSpecVersion} +var SupportedVersions = []string{"0.3.0", "0.3.1", ImplementedSpecVersion} func NewResult(data []byte) (types.Result, error) { result := &Result{} @@ -75,13 +76,9 @@ func convertFrom020(result types.Result) (*Result, error) { 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, + GW: route.GW, }) } } @@ -93,21 +90,13 @@ func convertFrom020(result types.Result) (*Result, error) { 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, + GW: route.GW, }) } } - if len(newResult.IPs) == 0 { - return nil, fmt.Errorf("cannot convert: no valid IP addresses") - } - return newResult, nil } @@ -196,7 +185,7 @@ func (r *Result) Version() string { func (r *Result) GetAsVersion(version string) (types.Result, error) { switch version { - case "0.3.0", ImplementedSpecVersion: + case "0.3.0", "0.3.1", ImplementedSpecVersion: r.CNIVersion = version return r, nil case types020.SupportedVersions[0], types020.SupportedVersions[1], types020.SupportedVersions[2]: @@ -206,11 +195,15 @@ func (r *Result) GetAsVersion(version string) (types.Result, error) { } func (r *Result) Print() error { + return r.PrintTo(os.Stdout) +} + +func (r *Result) PrintTo(writer io.Writer) error { data, err := json.MarshalIndent(r, "", " ") if err != nil { return err } - _, err = os.Stdout.Write(data) + _, err = writer.Write(data) return err } diff --git a/vendor/github.com/containernetworking/cni/pkg/types/types.go b/vendor/github.com/containernetworking/cni/pkg/types/types.go index 6412756007e..d0d11006a05 100644 --- a/vendor/github.com/containernetworking/cni/pkg/types/types.go +++ b/vendor/github.com/containernetworking/cni/pkg/types/types.go @@ -18,6 +18,7 @@ import ( "encoding/json" "errors" "fmt" + "io" "net" "os" ) @@ -63,25 +64,31 @@ type NetConf 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"` + IPAM IPAM `json:"ipam,omitempty"` + DNS DNS `json:"dns"` + + RawPrevResult map[string]interface{} `json:"prevResult,omitempty"` + PrevResult Result `json:"-"` +} + +type IPAM struct { + Type string `json:"type,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"` + Name string `json:"name,omitempty"` + DisableCheck bool `json:"disableCheck,omitempty"` + Plugins []*NetConf `json:"plugins,omitempty"` } 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 + // The highest CNI specification result version the result supports // without having to convert Version() string @@ -92,6 +99,9 @@ type Result interface { // Prints the result in JSON format to stdout Print() error + // Prints the result in JSON format to provided writer + PrintTo(writer io.Writer) error + // Returns a JSON string representation of the result String() string } @@ -167,7 +177,7 @@ func (r *Route) UnmarshalJSON(data []byte) error { return nil } -func (r *Route) MarshalJSON() ([]byte, error) { +func (r Route) MarshalJSON() ([]byte, error) { rt := route{ Dst: IPNet(r.Dst), GW: r.GW, diff --git a/vendor/github.com/containernetworking/cni/pkg/version/plugin.go b/vendor/github.com/containernetworking/cni/pkg/version/plugin.go index 8a46728105c..1df427243f3 100644 --- a/vendor/github.com/containernetworking/cni/pkg/version/plugin.go +++ b/vendor/github.com/containernetworking/cni/pkg/version/plugin.go @@ -18,6 +18,8 @@ import ( "encoding/json" "fmt" "io" + "strconv" + "strings" ) // PluginInfo reports information about CNI versioning @@ -79,3 +81,64 @@ func (*PluginDecoder) Decode(jsonBytes []byte) (PluginInfo, error) { } return &info, nil } + +// ParseVersion parses a version string like "3.0.1" or "0.4.5" into major, +// minor, and micro numbers or returns an error +func ParseVersion(version string) (int, int, int, error) { + var major, minor, micro int + if version == "" { + return -1, -1, -1, fmt.Errorf("invalid version %q: the version is empty", version) + } + + parts := strings.Split(version, ".") + if len(parts) >= 4 { + return -1, -1, -1, fmt.Errorf("invalid version %q: too many parts", version) + } + + major, err := strconv.Atoi(parts[0]) + if err != nil { + return -1, -1, -1, fmt.Errorf("failed to convert major version part %q: %v", parts[0], err) + } + + if len(parts) >= 2 { + minor, err = strconv.Atoi(parts[1]) + if err != nil { + return -1, -1, -1, fmt.Errorf("failed to convert minor version part %q: %v", parts[1], err) + } + } + + if len(parts) >= 3 { + micro, err = strconv.Atoi(parts[2]) + if err != nil { + return -1, -1, -1, fmt.Errorf("failed to convert micro version part %q: %v", parts[2], err) + } + } + + return major, minor, micro, nil +} + +// GreaterThanOrEqualTo takes two string versions, parses them into major/minor/micro +// numbers, and compares them to determine whether the first version is greater +// than or equal to the second +func GreaterThanOrEqualTo(version, otherVersion string) (bool, error) { + firstMajor, firstMinor, firstMicro, err := ParseVersion(version) + if err != nil { + return false, err + } + + secondMajor, secondMinor, secondMicro, err := ParseVersion(otherVersion) + if err != nil { + return false, err + } + + if firstMajor > secondMajor { + return true, nil + } else if firstMajor == secondMajor { + if firstMinor > secondMinor { + return true, nil + } else if firstMinor == secondMinor && firstMicro >= secondMicro { + return true, nil + } + } + return false, nil +} diff --git a/vendor/github.com/containernetworking/cni/pkg/version/version.go b/vendor/github.com/containernetworking/cni/pkg/version/version.go index efe8ea8716d..8f3508e61f3 100644 --- a/vendor/github.com/containernetworking/cni/pkg/version/version.go +++ b/vendor/github.com/containernetworking/cni/pkg/version/version.go @@ -15,6 +15,7 @@ package version import ( + "encoding/json" "fmt" "github.com/containernetworking/cni/pkg/types" @@ -24,7 +25,7 @@ import ( // Current reports the version of the CNI spec implemented by this library func Current() string { - return "0.3.1" + return "0.4.0" } // Legacy PluginInfo describes a plugin that is backwards compatible with the @@ -35,7 +36,7 @@ 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 All = PluginSupports("0.1.0", "0.2.0", "0.3.0", "0.3.1", "0.4.0") var resultFactories = []struct { supportedVersions []string @@ -59,3 +60,24 @@ func NewResult(version string, resultBytes []byte) (types.Result, error) { return nil, fmt.Errorf("unsupported CNI result version %q", version) } + +// ParsePrevResult parses a prevResult in a NetConf structure and sets +// the NetConf's PrevResult member to the parsed Result object. +func ParsePrevResult(conf *types.NetConf) error { + if conf.RawPrevResult == nil { + return nil + } + + resultBytes, err := json.Marshal(conf.RawPrevResult) + if err != nil { + return fmt.Errorf("could not serialize prevResult: %v", err) + } + + conf.RawPrevResult = nil + conf.PrevResult, err = NewResult(conf.CNIVersion, resultBytes) + if err != nil { + return fmt.Errorf("could not parse prevResult: %v", err) + } + + return nil +} diff --git a/vendor/modules.txt b/vendor/modules.txt index f582c1376d6..c37dc966ac5 100644 --- a/vendor/modules.txt +++ b/vendor/modules.txt @@ -176,7 +176,7 @@ github.com/containerd/containerd/containers github.com/containerd/containerd/dialer github.com/containerd/containerd/errdefs github.com/containerd/containerd/namespaces -# github.com/containernetworking/cni v0.6.0 => github.com/containernetworking/cni v0.6.0 +# github.com/containernetworking/cni v0.7.1 => github.com/containernetworking/cni v0.7.1 github.com/containernetworking/cni/libcni github.com/containernetworking/cni/pkg/invoke github.com/containernetworking/cni/pkg/types