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package stack
import (
"fmt"
"strings"
"github.com/docker/cli/cli"
"github.com/docker/cli/cli/command"
"github.com/docker/docker/api/types"
"github.com/docker/docker/api/types/swarm"
"github.com/pkg/errors"
"github.com/spf13/cobra"
"golang.org/x/net/context"
)
type removeOptions struct {
namespaces []string
}
func newRemoveCommand(dockerCli command.Cli) *cobra.Command {
var opts removeOptions
cmd := &cobra.Command{
Use: "rm STACK [STACK...]",
Aliases: []string{"remove", "down"},
Short: "Remove one or more stacks",
Args: cli.RequiresMinArgs(1),
RunE: func(cmd *cobra.Command, args []string) error {
opts.namespaces = args
return runRemove(dockerCli, opts)
},
}
return cmd
}
func runRemove(dockerCli command.Cli, opts removeOptions) error {
namespaces := opts.namespaces
client := dockerCli.Client()
ctx := context.Background()
var errs []string
for _, namespace := range namespaces {
services, err := getServices(ctx, client, namespace)
if err != nil {
return err
}
networks, err := getStackNetworks(ctx, client, namespace)
if err != nil {
return err
}
secrets, err := getStackSecrets(ctx, client, namespace)
if err != nil {
return err
}
configs, err := getStackConfigs(ctx, client, namespace)
if err != nil {
return err
}
if len(services)+len(networks)+len(secrets)+len(configs) == 0 {
fmt.Fprintf(dockerCli.Out(), "Nothing found in stack: %s\n", namespace)
continue
}
hasError := removeServices(ctx, dockerCli, services)
hasError = removeSecrets(ctx, dockerCli, secrets) || hasError
hasError = removeConfigs(ctx, dockerCli, configs) || hasError
hasError = removeNetworks(ctx, dockerCli, networks) || hasError
if hasError {
errs = append(errs, fmt.Sprintf("Failed to remove some resources from stack: %s", namespace))
}
}
if len(errs) > 0 {
return errors.Errorf(strings.Join(errs, "\n"))
}
return nil
}
func removeServices(
ctx context.Context,
dockerCli command.Cli,
services []swarm.Service,
) bool {
var err error
for _, service := range services {
fmt.Fprintf(dockerCli.Err(), "Removing service %s\n", service.Spec.Name)
if err = dockerCli.Client().ServiceRemove(ctx, service.ID); err != nil {
fmt.Fprintf(dockerCli.Err(), "Failed to remove service %s: %s", service.ID, err)
}
}
return err != nil
}
func removeNetworks(
ctx context.Context,
dockerCli command.Cli,
networks []types.NetworkResource,
) bool {
var err error
for _, network := range networks {
fmt.Fprintf(dockerCli.Err(), "Removing network %s\n", network.Name)
if err = dockerCli.Client().NetworkRemove(ctx, network.ID); err != nil {
fmt.Fprintf(dockerCli.Err(), "Failed to remove network %s: %s", network.ID, err)
}
}
return err != nil
}
func removeSecrets(
ctx context.Context,
dockerCli command.Cli,
secrets []swarm.Secret,
) bool {
var err error
for _, secret := range secrets {
fmt.Fprintf(dockerCli.Err(), "Removing secret %s\n", secret.Spec.Name)
if err = dockerCli.Client().SecretRemove(ctx, secret.ID); err != nil {
fmt.Fprintf(dockerCli.Err(), "Failed to remove secret %s: %s", secret.ID, err)
}
}
return err != nil
}
func removeConfigs(
ctx context.Context,
dockerCli command.Cli,
configs []swarm.Config,
) bool {
var err error
for _, config := range configs {
fmt.Fprintf(dockerCli.Err(), "Removing config %s\n", config.Spec.Name)
if err = dockerCli.Client().ConfigRemove(ctx, config.ID); err != nil {
fmt.Fprintf(dockerCli.Err(), "Failed to remove config %s: %s", config.ID, err)
}
}
return err != nil
}