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delete_pixie.go
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114 lines (101 loc) · 3.33 KB
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/*
* Copyright 2018- The Pixie 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.
*
* SPDX-License-Identifier: Apache-2.0
*/
package cmd
import (
"fmt"
"time"
"github.com/fatih/color"
"github.com/spf13/cobra"
"github.com/spf13/viper"
"px.dev/pixie/src/pixie_cli/pkg/components"
"px.dev/pixie/src/pixie_cli/pkg/utils"
"px.dev/pixie/src/pixie_cli/pkg/vizier"
"px.dev/pixie/src/utils/shared/k8s"
)
func init() {
DeleteCmd.Flags().BoolP("clobber", "d", true, "Whether to delete all dependencies in the cluster")
DeleteCmd.Flags().StringP("namespace", "n", "", "The namespace where Pixie is located")
}
// DeleteCmd is the "delete" command.
var DeleteCmd = &cobra.Command{
Use: "delete",
Short: "Deletes Pixie on the current K8s cluster",
PreRun: func(cmd *cobra.Command, args []string) {
viper.BindPFlag("clobber", cmd.Flags().Lookup("clobber"))
viper.BindPFlag("namespace", cmd.Flags().Lookup("namespace"))
},
Run: func(cmd *cobra.Command, args []string) {
clobberAll, _ := cmd.Flags().GetBool("clobber")
ns, _ := cmd.Flags().GetString("namespace")
if ns == "" {
ns = vizier.MustFindVizierNamespace()
}
deletePixie(ns, clobberAll)
},
}
func deletePixie(ns string, clobberAll bool) {
kubeConfig := k8s.GetConfig()
kubeAPIConfig := k8s.GetClientAPIConfig()
clientset := k8s.GetClientset(kubeConfig)
opNs, _ := vizier.FindOperatorNamespace(clientset)
od := k8s.ObjectDeleter{
Namespace: ns,
Clientset: clientset,
RestConfig: kubeConfig,
Timeout: 2 * time.Minute,
}
opOd := k8s.ObjectDeleter{
Namespace: opNs,
Clientset: clientset,
RestConfig: kubeConfig,
Timeout: 2 * time.Minute,
}
tasks := make([]utils.Task, 0)
currentCluster := kubeAPIConfig.CurrentContext
var noClobberInfo string
if clobberAll {
utils.WithColor(color.New(color.FgRed)).Infof("This action will delete the entire '%s' namespace.", ns)
noClobberInfo = " For a partial deletion which preserves the namespace, try `px delete --clobber=false`."
}
prompt := fmt.Sprintf("Confirm to proceed on cluster %s.", currentCluster)
proceed := components.YNPrompt(prompt, true)
if !proceed {
utils.Errorf("User exited.%s", noClobberInfo)
return
}
if clobberAll {
tasks = append(tasks, newTaskWrapper("Deleting namespace", od.DeleteNamespace))
if opNs != "" {
tasks = append(tasks, newTaskWrapper("Deleting operator namespace", opOd.DeleteNamespace))
}
tasks = append(tasks, newTaskWrapper("Deleting cluster-scoped resources", func() error {
_, err := od.DeleteByLabel("app=pl-monitoring")
return err
}))
} else {
tasks = append(tasks, newTaskWrapper("Deleting Vizier pods/services", func() error {
_, err := od.DeleteByLabel("component=vizier")
return err
}))
}
delJr := utils.NewSerialTaskRunner(tasks)
err := delJr.RunAndMonitor()
if err != nil {
utils.WithError(err).Fatal("Error deleting Pixie")
}
}