Merge pull request #376 from docker/logout

Implement azure logout

cli/cmd/login/login.go

@@ -35,7 +35,7 @@ import (
 func Command() *cobra.Command {
 	cmd := &cobra.Command{
 		Use:   "login [OPTIONS] [SERVER]",
-		Short: "Log in to a Docker registry",
+		Short: "Log in to a Docker registry or cloud backend",
 		Long:  "Log in to a Docker registry or cloud backend.\nIf no registry server is specified, the default is defined by the daemon.",
 		Args:  cobra.MaximumNArgs(1),
 		RunE:  runLogin,

cli/cmd/logout/azurelogout.go

@@ -0,0 +1,42 @@
+package logout
+
+import (
+	"context"
+	"fmt"
+
+	"github.com/pkg/errors"
+	"github.com/spf13/cobra"
+
+	"github.com/docker/api/client"
+	"github.com/docker/api/errdefs"
+)
+
+// AzureLogoutCommand returns the azure logout command
+func AzureLogoutCommand() *cobra.Command {
+	cmd := &cobra.Command{
+		Use:   "azure",
+		Short: "Logout from Azure",
+		Args:  cobra.MaximumNArgs(0),
+		RunE: func(cmd *cobra.Command, args []string) error {
+			return cloudLogout(cmd, "aci")
+		},
+	}
+	return cmd
+}
+
+func cloudLogout(cmd *cobra.Command, backendType string) error {
+	ctx := cmd.Context()
+	cs, err := client.GetCloudService(ctx, backendType)
+	if err != nil {
+		return errors.Wrap(errdefs.ErrLoginFailed, "cannot connect to backend")
+	}
+	err = cs.Logout(ctx)
+	if errors.Is(err, context.Canceled) {
+		return errors.New("logout canceled")
+	}
+	if err != nil {
+		return err
+	}
+	fmt.Println("Removing login credentials for Azure")
+	return nil
+}

cli/cmd/logout/logout.go

@@ -0,0 +1,25 @@
+package logout
+
+import (
+	"github.com/spf13/cobra"
+
+	"github.com/docker/api/cli/mobycli"
+)
+
+// Command returns the login command
+func Command() *cobra.Command {
+	cmd := &cobra.Command{
+		Use:   "logout [SERVER]",
+		Short: "Log out from a Docker registry or cloud backend",
+		Long:  "Log out from a Docker registry or cloud backend.\nIf no server is specified, the default is defined by the daemon.",
+		Args:  cobra.MaximumNArgs(0),
+		RunE:  runLogout,
+	}
+
+	cmd.AddCommand(AzureLogoutCommand())
+	return cmd
+}
+
+func runLogout(cmd *cobra.Command, args []string) error {
+	return mobycli.ExecCmd(cmd)
+}