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delete.go
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delete.go
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/*
Copyright 2016 The Kubernetes Authors All rights reserved.
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"
"os"
"strings"
"github.com/docker/machine/libmachine"
"github.com/minishift/minishift/cmd/minishift/cmd/util"
"github.com/minishift/minishift/pkg/minikube/cluster"
"github.com/minishift/minishift/pkg/minikube/constants"
minishiftConfig "github.com/minishift/minishift/pkg/minishift/config"
pkgUtil "github.com/minishift/minishift/pkg/util"
"github.com/minishift/minishift/pkg/util/filehelper"
"github.com/minishift/minishift/pkg/util/os/atexit"
"github.com/spf13/cobra"
)
var (
// deleteCmd represents the delete command
deleteCmd = &cobra.Command{
Use: "delete",
Short: "Deletes the Minishift VM.",
Long: `Deletes the Minishift VM, including the local OpenShift cluster and all associated files.`,
Run: runDelete,
}
forceMachineDeletion bool
clearCache bool
)
func runDelete(cmd *cobra.Command, args []string) {
api := libmachine.NewClient(constants.Minipath, constants.MakeMiniPath("certs"))
defer api.Close()
util.ExitIfUndefined(api, constants.MachineName)
if minishiftConfig.InstanceConfig.IsRegistered {
if stopped, err := cluster.UnRegister(api); err != nil || stopped {
handleFailedUnRegistration()
}
minishiftConfig.InstanceConfig.IsRegistered = false
minishiftConfig.InstanceConfig.Write()
}
if clearCache {
cachePath := constants.MakeMiniPath("cache")
err := os.RemoveAll(cachePath)
if err != nil {
atexit.ExitWithMessage(1, fmt.Sprintf("Error deleting Minishift cache: %v", err))
} else {
fmt.Printf("Removed the cache at: %s\n", cachePath)
}
}
fmt.Println("Deleting the Minishift VM...")
if err := cluster.DeleteHost(api); err != nil {
handleFailedHostDeletion(err)
}
removeInstanceConfigs()
fmt.Println("Minishift VM deleted.")
}
func handleFailedUnRegistration() {
userConfirmation := pkgUtil.ReadInputFromStdin("Current Minishift VM is registered, but unregistration failed. " +
"Do you still want to delete the VM [y/N]?")
if strings.ToUpper(userConfirmation) != "Y" {
atexit.ExitWithMessage(0, fmt.Sprintln("Delete aborted."))
}
}
func handleFailedHostDeletion(err error) {
if forceMachineDeletion {
err := os.RemoveAll(constants.MakeMiniPath("machines"))
if err != nil {
atexit.ExitWithMessage(1, fmt.Sprintf("Error deleting '%s': %v", constants.MakeMiniPath("machines"), err))
}
} else {
atexit.ExitWithMessage(1, fmt.Sprintf("Error deleting the Minishift VM: %v", err))
}
}
func removeInstanceConfigs() {
exists := filehelper.Exists(minishiftConfig.InstanceConfig.FilePath)
if exists {
if err := minishiftConfig.InstanceConfig.Delete(); err != nil {
atexit.ExitWithMessage(1, fmt.Sprintln(fmt.Sprintf("Error deleting %s: ", minishiftConfig.InstanceConfig.FilePath), err))
}
}
exists = filehelper.Exists(constants.KubeConfigPath)
if exists {
if err := os.Remove(constants.KubeConfigPath); err != nil {
atexit.ExitWithMessage(1, fmt.Sprintf("Error deleting '%s'", constants.KubeConfigPath))
}
}
}
func init() {
deleteCmd.Flags().BoolVar(&forceMachineDeletion, "force", false, "Forces the deletion of the VM specific files in MINISHIFT_HOME.")
deleteCmd.Flags().BoolVar(&clearCache, "clear-cache", false, "Deletes all cached artifacts as part of the VM deletion.")
RootCmd.AddCommand(deleteCmd)
}