Create aws context

Signed-off-by: aiordache <anca.iordache@docker.com>

cli/cmd/context/create.go

@@ -72,6 +72,7 @@ $ docker context create my-context --description "some description" --docker "ho
 
 	cmd.AddCommand(
 		createAciCommand(),
+		createAwsCommand(),
 		createLocalCommand(),
 		createExampleCommand(),
 	)

cli/cmd/context/createaws.go

@@ -0,0 +1,69 @@
+/*
+   Copyright 2020 Docker, Inc.
+
+   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 (
+	"context"
+
+	"github.com/pkg/errors"
+	"github.com/spf13/cobra"
+
+	"github.com/docker/api/amazon"
+	"github.com/docker/api/client"
+	"github.com/docker/api/context/store"
+	"github.com/docker/api/errdefs"
+)
+
+func createAwsCommand() *cobra.Command {
+	var opts amazon.ContextParams
+	cmd := &cobra.Command{
+		Use:   "aws CONTEXT [flags]",
+		Short: "Create a context for Amazon ECS",
+		Args:  cobra.ExactArgs(1),
+		RunE: func(cmd *cobra.Command, args []string) error {
+			return runCreateAws(cmd.Context(), args[0], opts)
+		},
+	}
+
+	addDescriptionFlag(cmd, &opts.Description)
+	cmd.Flags().StringVar(&opts.Profile, "profile", "", "AWS Profile")
+	cmd.Flags().StringVar(&opts.Cluster, "cluster", "", "ECS cluster")
+	cmd.Flags().StringVar(&opts.Region, "region", "", "AWS region")
+	cmd.Flags().StringVar(&opts.AwsID, "key-id", "", "AWS Access Key ID")
+	cmd.Flags().StringVar(&opts.AwsSecret, "secret-key", "", "AWS Secret Access Key")
+	return cmd
+}
+
+func runCreateAws(ctx context.Context, contextName string, opts amazon.ContextParams) error {
+	if contextExists(ctx, contextName) {
+		return errors.Wrapf(errdefs.ErrAlreadyExists, "context %s", contextName)
+	}
+	contextData, description, err := getAwsContextData(ctx, opts)
+	if err != nil {
+		return err
+	}
+	return createDockerContext(ctx, contextName, store.AwsContextType, description, contextData)
+
+}
+
+func getAwsContextData(ctx context.Context, opts amazon.ContextParams) (interface{}, string, error) {
+	cs, err := client.GetCloudService(ctx, store.AwsContextType)
+	if err != nil {
+		return nil, "", errors.Wrap(err, "cannot connect to AWS backend")
+	}
+	return cs.CreateContextData(ctx, opts)
+}