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purge.go
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purge.go
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/*
* Ceph Nano (C) 2018 Red Hat, Inc.
*
* 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.
*/
/*
* Below main package has canonical imports for 'go get' and 'go build'
* to work with all other clones of github.com/ceph/cn repository. For
* more information refer https://golang.org/doc/go1.4#canonicalimports
*/
package cmd
import (
"fmt"
"log"
"os"
"github.com/docker/docker/api/types"
"github.com/spf13/cobra"
)
var (
// IamSure means whether or not the user wants to purge
IamSure bool
// Help shows a customer help
Help bool
// DeleteAll also deletes the container image
DeleteAll bool
)
// cliClusterPurge is the Cobra CLI call
func cliClusterPurge() *cobra.Command {
cmd := &cobra.Command{
Use: "purge [cluster]",
Short: "Purge an object storage server. DANGEROUS!",
Args: cobra.ExactArgs(1),
Run: purgeNano,
}
cmd.Flags().SortFlags = false
cmd.Flags().BoolVar(&IamSure, "yes-i-am-sure", false, "YES I know what I'm doing and I want to purge")
cmd.Flags().BoolVar(&DeleteAll, "all", false, "This also deletes the container image")
cmd.Flags().BoolVar(&Help, "help", false, "help for purge")
return cmd
}
// purgeNano purges Ceph Nano.
func purgeNano(cmd *cobra.Command, args []string) {
containerNameToShow := args[0]
containerName := containerNamePrefix + containerNameToShow
if !IamSure {
fmt.Printf("Purge option is too dangerous please set the right flag. \n \n")
cmd.Help()
os.Exit(1)
}
notExistCheck(containerName)
log.Println("Purging cluster " + containerNameToShow + "...")
removeContainer(containerName)
}
func removeContainer(containerName string) {
dataOsd := dockerInspect(containerName, "BindsData")
if DeleteAll {
imageName = dockerInspect(containerName, "image")
}
options := types.ContainerRemoveOptions{
RemoveLinks: false,
RemoveVolumes: true,
Force: true,
}
// we don't necessarily want to catch errors here
// it's not an issue if the container does not exist
getDocker().ContainerRemove(ctx, containerName, options)
if dataOsd != "noDataDir" && dataOsd != "/dev" {
testDev, err := getFileType(dataOsd)
if err != nil {
log.Fatal(err)
}
if testDev == "directory" {
err := os.RemoveAll(dataOsd)
if err != nil {
log.Println("Something went wrong while removing " + dataOsd + ".\n" +
"You need to purge the directory manually, next time run me as 'root' to avoid that.")
log.Fatal(err)
}
}
}
if DeleteAll {
options := types.ImageRemoveOptions{
Force: true,
PruneChildren: true,
}
log.Println("Removing container image " + imageName + "...")
getDocker().ImageRemove(ctx, imageName, options)
}
}