94 lines
3.1 KiB
Go
94 lines
3.1 KiB
Go
/*
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Copyright © 2019 Vineeth Pothulapati <vineethpothulapati@outlook.com>
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Permission is hereby granted, free of charge, to any person obtaining a copy
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of this software and associated documentation files (the "Software"), to deal
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in the Software without restriction, including without limitation the rights
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to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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copies of the Software, and to permit persons to whom the Software is
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furnished to do so, subject to the following conditions:
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The above copyright notice and this permission notice shall be included in
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all copies or substantial portions of the Software.
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THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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THE SOFTWARE.
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*/
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package cmd
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import (
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"context"
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"fmt"
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"io/ioutil"
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"log"
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"github.com/spf13/cobra"
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v1 "github.com/zalando/postgres-operator/pkg/apis/acid.zalan.do/v1"
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PostgresqlLister "github.com/zalando/postgres-operator/pkg/generated/clientset/versioned/typed/acid.zalan.do/v1"
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"k8s.io/apiextensions-apiserver/pkg/client/clientset/clientset/scheme"
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metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
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)
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// updateCmd represents kubectl pg update
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var updateCmd = &cobra.Command{
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Use: "update",
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Short: "Updates postgresql object using manifest file",
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Long: `Updates the state of cluster using manifest file to reflect the changes on the cluster.`,
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Run: func(cmd *cobra.Command, args []string) {
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fileName, _ := cmd.Flags().GetString("file")
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updatePgResources(fileName)
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},
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Example: `
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#usage
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kubectl pg update -f [File-NAME]
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#update the postgres cluster with updated manifest file
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kubectl pg update -f cluster-manifest.yaml
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`,
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}
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// Update postgresql resources.
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func updatePgResources(fileName string) {
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config := getConfig()
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postgresConfig, err := PostgresqlLister.NewForConfig(config)
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ymlFile, err := ioutil.ReadFile(fileName)
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if err != nil {
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log.Fatal(err)
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}
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decode := scheme.Codecs.UniversalDeserializer().Decode
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obj, _, err := decode([]byte(ymlFile), nil, &v1.Postgresql{})
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if err != nil {
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log.Fatal(err)
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}
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newPostgresObj := obj.(*v1.Postgresql)
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oldPostgresObj, err := postgresConfig.Postgresqls(newPostgresObj.Namespace).Get(context.TODO(), newPostgresObj.Name, metav1.GetOptions{})
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if err != nil {
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log.Fatal(err)
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}
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newPostgresObj.ResourceVersion = oldPostgresObj.ResourceVersion
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response, err := postgresConfig.Postgresqls(newPostgresObj.Namespace).Update(context.TODO(), newPostgresObj, metav1.UpdateOptions{})
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if err != nil {
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log.Fatal(err)
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}
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if newPostgresObj.ResourceVersion != response.ResourceVersion {
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fmt.Printf("postgresql %s updated.\n", response.Name)
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} else {
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fmt.Printf("postgresql %s is unchanged.\n", response.Name)
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}
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}
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func init() {
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updateCmd.Flags().StringP("file", "f", "", "manifest file with the cluster definition.")
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rootCmd.AddCommand(updateCmd)
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}
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