Add update command for backward compatibility

Signed-off-by: Guillaume Tardif <guillaume.tardif@docker.com>

cli/cmd/context/context.go

@@ -34,6 +34,7 @@ func Command() *cobra.Command {
 		showCommand(),
 		useCommand(),
 		inspectCommand(),
+		updateCommand(),
 	)
 
 	return cmd

cli/cmd/context/update.go

@@ -0,0 +1,85 @@
+/*
+   Copyright 2020 Docker Compose CLI authors
+
+   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.
+*/
+
+package context
+
+import (
+	"github.com/pkg/errors"
+	"github.com/spf13/cobra"
+
+	"github.com/docker/compose-cli/cli/mobycli"
+	"github.com/docker/compose-cli/context/store"
+	"github.com/docker/compose-cli/errdefs"
+)
+
+func updateCommand() *cobra.Command {
+
+	longHelp := `Update a context
+
+Docker endpoint config:
+
+NAME                DESCRIPTION
+from                Copy named context's Docker endpoint configuration
+host                Docker endpoint on which to connect
+ca                  Trust certs signed only by this CA
+cert                Path to TLS certificate file
+key                 Path to TLS key file
+skip-tls-verify     Skip TLS certificate validation
+
+Kubernetes endpoint config:
+
+NAME                 DESCRIPTION
+from                 Copy named context's Kubernetes endpoint configuration
+config-file          Path to a Kubernetes config file
+context-override     Overrides the context set in the kubernetes config file
+namespace-override   Overrides the namespace set in the kubernetes config file
+
+Example:
+
+$ docker context update my-context --description "some description" --docker "host=tcp://myserver:2376,ca=~/ca-file,cert=~/cert-file,key=~/key-file"`
+
+	cmd := &cobra.Command{
+		Use:   "update",
+		Short: "Update a context",
+		Args:  cobra.ExactArgs(1),
+		RunE: func(cmd *cobra.Command, args []string) error {
+			return runUpdate(cmd, args[0])
+		},
+		Long: longHelp,
+	}
+	flags := cmd.Flags()
+	flags.String("description", "", "Description of the context")
+	flags.String(
+		"default-stack-orchestrator", "",
+		"Default orchestrator for stack operations to use with this context (swarm|kubernetes|all)")
+	flags.StringToString("docker", nil, "Set the docker endpoint")
+	flags.StringToString("kubernetes", nil, "Set the kubernetes endpoint")
+
+	return cmd
+}
+
+func runUpdate(cmd *cobra.Command, name string) error {
+	s := store.ContextStore(cmd.Context())
+	dockerContext, err := s.Get(name)
+	if err == nil && dockerContext != nil {
+		if dockerContext.Type() != store.DefaultContextType {
+			return errors.Wrapf(errdefs.ErrNotImplemented, "context update for context type %q not supported", dockerContext.Type())
+		}
+	}
+
+	mobycli.Exec(cmd.Root())
+	return nil
+}

tests/e2e/e2e_test.go

@@ -415,6 +415,8 @@ func TestLegacy(t *testing.T) {
 			ExitCode: 1,
 			Err:      `"docker swarm join" requires exactly 1 argument.`,
 		})
+		res = c.RunDockerCmd("context", "update", "moby-ctx", "--description", "updated context")
+		res.Assert(t, icmd.Expected{Out: "moby-ctx"})
 	})
 
 	t.Run("host flag overrides context", func(t *testing.T) {