Add experimental docker stack commands

Signed-off-by: Daniel Nephin <dnephin@docker.com>
Upstream-commit: 71104bb592dc98467d3828394eabcbe50ca22ae4
Component: engine

components/engine/api/client/stack/remove.go

@@ -0,0 +1,70 @@
+// +build experimental
+
+package stack
+
+import (
+	"fmt"
+
+	"golang.org/x/net/context"
+
+	"github.com/docker/docker/api/client"
+	"github.com/docker/docker/cli"
+	"github.com/spf13/cobra"
+)
+
+type removeOptions struct {
+	namespace string
+}
+
+func newRemoveCommand(dockerCli *client.DockerCli) *cobra.Command {
+	var opts removeOptions
+
+	cmd := &cobra.Command{
+		Use:     "rm STACK",
+		Aliases: []string{"remove", "down"},
+		Short:   "Remove the stack",
+		Args:    cli.ExactArgs(1),
+		RunE: func(cmd *cobra.Command, args []string) error {
+			opts.namespace = args[0]
+			return runRemove(dockerCli, opts)
+		},
+	}
+	return cmd
+}
+
+func runRemove(dockerCli *client.DockerCli, opts removeOptions) error {
+	namespace := opts.namespace
+	client := dockerCli.Client()
+	stderr := dockerCli.Err()
+	ctx := context.Background()
+	hasError := false
+
+	services, err := getServices(ctx, client, namespace)
+	if err != nil {
+		return err
+	}
+	for _, service := range services {
+		fmt.Fprintf(stderr, "Removing service %s\n", service.Spec.Name)
+		if err := client.ServiceRemove(ctx, service.ID); err != nil {
+			hasError = true
+			fmt.Fprintf(stderr, "Failed to remove service %s: %s", service.ID, err)
+		}
+	}
+
+	networks, err := getNetworks(ctx, client, namespace)
+	if err != nil {
+		return err
+	}
+	for _, network := range networks {
+		fmt.Fprintf(stderr, "Removing network %s\n", network.Name)
+		if err := client.NetworkRemove(ctx, network.ID); err != nil {
+			hasError = true
+			fmt.Fprintf(stderr, "Failed to remove network %s: %s", network.ID, err)
+		}
+	}
+
+	if hasError {
+		return fmt.Errorf("Failed to remove some resources")
+	}
+	return nil
+}