feat: list sub-command for faas cli

cmd/list.go

@@ -0,0 +1,51 @@
+package cmd
+
+import (
+	"fmt"
+	"github.com/ory/viper"
+	"github.com/spf13/cobra"
+	metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
+	"k8s.io/client-go/tools/clientcmd"
+	servingv1client "knative.dev/serving/pkg/client/clientset/versioned/typed/serving/v1"
+)
+
+const (
+	nsFlag = "namespace"
+)
+
+func init() {
+	root.AddCommand(listCmd)
+	listCmd.Flags().StringP(nsFlag, "n", "", "optionally specify a namespace")
+	viper.BindPFlag(nsFlag, listCmd.Flags().Lookup(nsFlag))
+}
+
+var listCmd = &cobra.Command{
+	Use:        "list",
+	Short:      "Lists deployed Service Function",
+	Long:       `Lists deployed Service Function`,
+	SuggestFor: []string{"ls"},
+	RunE:       list,
+}
+
+func list(cmd *cobra.Command, args []string) (err error) {
+	loadingRules := clientcmd.NewDefaultClientConfigLoadingRules()
+	clientConfig := clientcmd.NewNonInteractiveDeferredLoadingClientConfig(loadingRules, &clientcmd.ConfigOverrides{})
+	config, err := clientConfig.ClientConfig()
+	if err != nil {
+		return
+	}
+	client, err := servingv1client.NewForConfig(config)
+	if err != nil {
+		return
+	}
+	opts := metav1.ListOptions{LabelSelector: "bosonFunction"}
+	ns := viper.GetString(nsFlag)
+	lst, err := client.Services(ns).List(opts)
+	if err != nil {
+		return
+	}
+	for _, service := range lst.Items {
+		fmt.Printf("%s/%s", service.Namespace, service.Name)
+	}
+	return nil
+}

go.mod

@@ -3,9 +3,18 @@ module github.com/lkingland/faas
 go 1.13
 
 require (
+	contrib.go.opencensus.io/exporter/ocagent v0.6.0 // indirect
+	contrib.go.opencensus.io/exporter/prometheus v0.1.0 // indirect
+	contrib.go.opencensus.io/exporter/stackdriver v0.13.1 // indirect
+	github.com/google/go-containerregistry v0.0.0-20200423114255-8f808463544c // indirect
+	github.com/openzipkin/zipkin-go v0.2.2 // indirect
 	github.com/ory/viper v1.7.4
 	github.com/spf13/cobra v1.0.0
 	golang.org/x/net v0.0.0-20200421231249-e086a090c8fd
+	gomodules.xyz/jsonpatch/v2 v2.1.0 // indirect
 	gopkg.in/yaml.v3 v3.0.0-20200313102051-9f266ea9e77c
-	k8s.io/apimachinery v0.18.2
+	k8s.io/apimachinery v0.17.4
+	k8s.io/client-go v0.17.4
+	knative.dev/pkg v0.0.0-20200414233146-0eed424fa4ee // indirect
+	knative.dev/serving v0.14.0
 )