Merge pull request #4308 from aojea/bumpcni

bump cni dependencies
This commit is contained in:
Michael Crosby
2020-08-25 11:54:53 -04:00
committed by GitHub
18 changed files with 508 additions and 237 deletions

View File

@@ -13,35 +13,67 @@ go-cni aims to support plugins that implement [Container Network Interface](http
## Usage
```go
package main
import (
"context"
"fmt"
"log"
gocni "github.com/containerd/go-cni"
)
func main() {
id := "123456"
netns := "/proc/9999/ns/net"
id := "example"
netns := "/var/run/netns/example-ns-1"
// CNI allows multiple CNI configurations and the network interface
// will be named by eth0, eth1, ..., ethN.
ifPrefixName := "eth"
defaultIfName := "eth0"
// Initialize library
l = gocni.New(gocni.WithMinNetworkCount(2),
gocni.WithPluginConfDir("/etc/mycni/net.d"),
gocni.WithPluginDir([]string{"/opt/mycni/bin", "/opt/cni/bin"}),
gocni.WithDefaultIfName(defaultIfName))
// Load the cni configuration
err:= l.Load(gocni.WithLoNetwork, gocni.WithDefaultConf)
if err != nil{
log.Errorf("failed to load cni configuration: %v", err)
return
// Initializes library
l, err := gocni.New(
// one for loopback network interface
gocni.WithMinNetworkCount(2),
gocni.WithPluginConfDir("/etc/cni/net.d"),
gocni.WithPluginDir([]string{"/opt/cni/bin"}),
// Sets the prefix for network interfaces, eth by default
gocni.WithInterfacePrefix(ifPrefixName))
if err != nil {
log.Fatalf("failed to initialize cni library: %v", err)
}
// Load the cni configuration
if err := l.Load(gocni.WithLoNetwork, gocni.WithDefaultConf); err != nil {
log.Fatalf("failed to load cni configuration: %v", err)
}
// Setup network for namespace.
labels := map[string]string{
"K8S_POD_NAMESPACE": "namespace1",
"K8S_POD_NAME": "pod1",
"K8S_POD_INFRA_CONTAINER_ID": id,
// Plugin tolerates all Args embedded by unknown labels, like
// K8S_POD_NAMESPACE/NAME/INFRA_CONTAINER_ID...
"IgnoreUnknown": "1",
}
result, err := l.Setup(id, netns, gocni.WithLabels(labels))
ctx := context.Background()
// Teardown network
defer func() {
if err := l.Remove(ctx, id, netns, gocni.WithLabels(labels)); err != nil {
log.Fatalf("failed to teardown network: %v", err)
}
}()
// Setup network
result, err := l.Setup(ctx, id, netns, gocni.WithLabels(labels))
if err != nil {
log.Errorf("failed to setup network for namespace %q: %v",id, err)
return
log.Fatalf("failed to setup network for namespace: %v", err)
}
// Get IP of the default interface
IP := result.Interfaces[defaultIfName].IPConfigs[0].IP.String()
fmt.Printf("IP of the default interface %s:%s", defaultIfName, IP)

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@@ -1,7 +1,7 @@
module github.com/containerd/go-cni
require (
github.com/containernetworking/cni v0.7.1
github.com/containernetworking/cni v0.8.0
github.com/davecgh/go-spew v1.1.1 // indirect
github.com/onsi/ginkgo v1.10.3 // indirect
github.com/onsi/gomega v1.7.1 // indirect