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get_addons.go
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/
get_addons.go
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package main
import (
"fmt"
"github.com/spf13/cobra"
"k8s.io/kops/channels/pkg/channels"
"k8s.io/kops/util/pkg/tables"
k8sapi "k8s.io/kubernetes/pkg/api"
"k8s.io/kubernetes/pkg/api/v1"
"os"
)
type GetAddonsCmd struct {
}
var getAddonsCmd GetAddonsCmd
func init() {
cmd := &cobra.Command{
Use: "addons",
Aliases: []string{"addon"},
Short: "get addons",
Long: `List or get addons.`,
Run: func(cmd *cobra.Command, args []string) {
err := getAddonsCmd.Run(args)
if err != nil {
exitWithError(err)
}
},
}
getCmd.cobraCommand.AddCommand(cmd)
}
type addonInfo struct {
Name string
Version *channels.ChannelVersion
Namespace *v1.Namespace
}
func (c *GetAddonsCmd) Run(args []string) error {
k8sClient, err := rootCommand.KubernetesClient()
if err != nil {
return err
}
namespaces, err := k8sClient.Namespaces().List(k8sapi.ListOptions{})
if err != nil {
return fmt.Errorf("error listing namespaces: %v", err)
}
var info []*addonInfo
for i := range namespaces.Items {
ns := &namespaces.Items[i]
addons := channels.FindAddons(ns)
for name, version := range addons {
i := &addonInfo{
Name: name,
Version: version,
Namespace: ns,
}
info = append(info, i)
}
}
if len(info) == 0 {
fmt.Printf("\nNo managed addons found\n")
return nil
}
{
t := &tables.Table{}
t.AddColumn("NAME", func(r *addonInfo) string {
return r.Name
})
t.AddColumn("NAMESPACE", func(r *addonInfo) string {
return r.Namespace.Name
})
t.AddColumn("VERSION", func(r *addonInfo) string {
if r.Version == nil {
return "-"
}
if r.Version.Version != nil {
return *r.Version.Version
}
return "?"
})
t.AddColumn("CHANNEL", func(r *addonInfo) string {
if r.Version == nil {
return "-"
}
if r.Version.Channel != nil {
return *r.Version.Channel
}
return "?"
})
columns := []string{"NAMESPACE", "NAME", "VERSION", "CHANNEL"}
err := t.Render(info, os.Stdout, columns...)
if err != nil {
return err
}
}
fmt.Printf("\n")
return nil
}