kops/channels/pkg/cmd/get_addons.go

141 lines
3.2 KiB
Go

/*
Copyright 2016 The Kubernetes Authors.
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
*/
/*
Copyright 2017 The Kubernetes Authors.
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
*/
package cmd
import (
"fmt"
"io"
"os"
"github.com/spf13/cobra"
"k8s.io/api/core/v1"
metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
"k8s.io/kops/channels/pkg/channels"
"k8s.io/kops/util/pkg/tables"
)
type GetAddonsOptions struct {
}
func NewCmdGetAddons(f Factory, out io.Writer) *cobra.Command {
var options GetAddonsOptions
cmd := &cobra.Command{
Use: "addons",
Aliases: []string{"addon"},
Short: "get addons",
Long: `List or get addons.`,
RunE: func(cmd *cobra.Command, args []string) error {
return RunGetAddons(f, out, &options)
},
}
return cmd
}
type addonInfo struct {
Name string
Version *channels.ChannelVersion
Namespace *v1.Namespace
}
func RunGetAddons(f Factory, out io.Writer, options *GetAddonsOptions) error {
k8sClient, err := f.KubernetesClient()
if err != nil {
return err
}
namespaces, err := k8sClient.CoreV1().Namespaces().List(metav1.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
}