DockerCLI/cli/command/context/remove.go

69 lines
1.8 KiB
Go
Raw Normal View History

package context
import (
"errors"
"fmt"
"strings"
"github.com/docker/cli/cli"
"github.com/docker/cli/cli/command"
"github.com/spf13/cobra"
)
// RemoveOptions are the options used to remove contexts
type RemoveOptions struct {
Force bool
}
func newRemoveCommand(dockerCli command.Cli) *cobra.Command {
var opts RemoveOptions
cmd := &cobra.Command{
Use: "rm CONTEXT [CONTEXT...]",
Aliases: []string{"remove"},
Short: "Remove one or more contexts",
Args: cli.RequiresMinArgs(1),
RunE: func(cmd *cobra.Command, args []string) error {
return RunRemove(dockerCli, opts, args)
},
}
cmd.Flags().BoolVarP(&opts.Force, "force", "f", false, "Force the removal of a context in use")
return cmd
}
// RunRemove removes one or more contexts
func RunRemove(dockerCli command.Cli, opts RemoveOptions, names []string) error {
var errs []string
currentCtx := dockerCli.CurrentContext()
for _, name := range names {
if name == "default" {
errs = append(errs, `default: context "default" cannot be removed`)
} else if err := doRemove(dockerCli, name, name == currentCtx, opts.Force); err != nil {
errs = append(errs, fmt.Sprintf("%s: %s", name, err))
} else {
fmt.Fprintln(dockerCli.Out(), name)
}
}
if len(errs) > 0 {
return errors.New(strings.Join(errs, "\n"))
}
return nil
}
func doRemove(dockerCli command.Cli, name string, isCurrent, force bool) error {
if _, err := dockerCli.ContextStore().GetContextMetadata(name); err != nil {
return err
}
if isCurrent {
if !force {
return errors.New("context is in use, set -f flag to force remove")
}
// fallback to DOCKER_HOST
cfg := dockerCli.ConfigFile()
cfg.CurrentContext = ""
if err := cfg.Save(); err != nil {
return err
}
}
return dockerCli.ContextStore().RemoveContext(name)
}