Setup ecs local network

ecs-cli/modules/cli/local/local_app.go

@@ -17,6 +17,10 @@ package local
 
 import (
 	"fmt"
+
+	"github.com/aws/amazon-ecs-cli/ecs-cli/modules/cli/local/network"
+	"github.com/docker/docker/client"
+	"github.com/sirupsen/logrus"
 	"github.com/urfave/cli"
 )
 
@@ -26,3 +30,17 @@ func Create(c *cli.Context) {
 	// 3. write to docker-compose.local.yml file
 	fmt.Println("foo") // placeholder
 }
+
+// Up creates a Compose file from an ECS task definition and runs it locally.
+//
+// The Amazon ECS Local Endpoints container needs to be running already for any local ECS task to work
+// (see https://github.com/awslabs/amazon-ecs-local-container-endpoints).
+// If the container is not running, this command creates a new network for all local ECS tasks to join
+// and communicate with the Amazon ECS Local Endpoints container.
+func Up(c *cli.Context) {
+	docker, err := client.NewEnvClient() // Temporary client created to test network.Setup()
+	if err != nil {
+		logrus.Fatal("Could not connect to docker", err)
+	}
+	network.Setup(docker)
+}

ecs-cli/modules/cli/local/network/generate_mock.go

@@ -0,0 +1,16 @@
+// Copyright 2015-2019 Amazon.com, Inc. or its affiliates. All Rights Reserved.
+//
+// Licensed under the Apache License, Version 2.0 (the "License"). You may
+// not use this file except in compliance with the License. A copy of the
+// License is located at
+//
+//	http://aws.amazon.com/apache2.0/
+//
+// or in the "license" file accompanying this file. This file 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 network
+
+//go:generate mockgen.sh github.com/aws/amazon-ecs-cli/ecs-cli/modules/cli/local/network LocalEndpointsStarter mock_network/network.go