feat(aws-ecs-patterns): entryPoint and command support within ApplicationLoadBalancedFargateService and ApplicationLoadBalancedEc2Service

packages/@aws-cdk/aws-ecs-patterns/README.md

@@ -34,6 +34,8 @@ const loadBalancedEcsService = new ecsPatterns.ApplicationLoadBalancedEc2Service
       TEST_ENVIRONMENT_VARIABLE1: "test environment variable 1 value",
       TEST_ENVIRONMENT_VARIABLE2: "test environment variable 2 value",
     },
+    command: ['command'],
+    entryPoint: ['entry', 'point'],
   },
   desiredCount: 2,
 });
@@ -49,6 +51,8 @@ const loadBalancedFargateService = new ecsPatterns.ApplicationLoadBalancedFargat
   cpu: 512,
   taskImageOptions: {
     image: ecs.ContainerImage.fromRegistry("amazon/amazon-ecs-sample"),
+    command: ['command'],
+    entryPoint: ['entry', 'point'],
   },
 });
 

packages/@aws-cdk/aws-ecs-patterns/lib/base/application-load-balanced-service-base.ts

@@ -365,6 +365,32 @@ export interface ApplicationLoadBalancedTaskImageOptions {
    * @default - No labels.
    */
   readonly dockerLabels?: { [key: string]: string };
+
+  /**
+  * The entry point that's passed to the container.
+  *
+  * This parameter maps to `Entrypoint` in the [Create a container](https://docs.docker.com/engine/api/v1.38/#operation/ContainerCreate) section
+  * of the [Docker Remote API](https://docs.docker.com/engine/api/v1.38/) and the `--entrypoint` option to
+  * [docker run](https://docs.docker.com/engine/reference/commandline/run/).
+  *
+  * For more information about the Docker `ENTRYPOINT` parameter, see https://docs.docker.com/engine/reference/builder/#entrypoint.
+  *
+  * @default none
+  */
+  readonly entryPoint?: string[];
+
+  /**
+  * The command that's passed to the container. If there are multiple arguments, make sure that each argument is a separated string in the array.
+  *
+  * This parameter maps to `Cmd` in the [Create a container](https://docs.docker.com/engine/api/v1.38/#operation/ContainerCreate) section
+  * of the [Docker Remote API](https://docs.docker.com/engine/api/v1.38/) and the `COMMAND` parameter to
+  * [docker run](https://docs.docker.com/engine/reference/commandline/run/).
+  *
+  * For more information about the Docker `CMD` parameter, see https://docs.docker.com/engine/reference/builder/#cmd.
+  *
+  * @default none
+  */
+  readonly command?: string[];
 }
 
 /**

packages/@aws-cdk/aws-ecs-patterns/lib/ecs/application-load-balanced-ecs-service.ts

@@ -128,6 +128,8 @@ export class ApplicationLoadBalancedEc2Service extends ApplicationLoadBalancedSe
         secrets: taskImageOptions.secrets,
         logging: logDriver,
         dockerLabels: taskImageOptions.dockerLabels,
+        command: taskImageOptions.command,
+        entryPoint: taskImageOptions.entryPoint,
       });
       container.addPortMappings({
         containerPort: taskImageOptions.containerPort || 80,

packages/@aws-cdk/aws-ecs-patterns/lib/fargate/application-load-balanced-fargate-service.ts

@@ -86,6 +86,8 @@ export class ApplicationLoadBalancedFargateService extends ApplicationLoadBalanc
         environment: taskImageOptions.environment,
         secrets: taskImageOptions.secrets,
         dockerLabels: taskImageOptions.dockerLabels,
+        command: taskImageOptions.command,
+        entryPoint: taskImageOptions.entryPoint,
       });
       container.addPortMappings({
         containerPort: taskImageOptions.containerPort || 80,

packages/@aws-cdk/aws-ecs-patterns/test/ec2/l3s.test.ts

@@ -36,6 +36,8 @@ test('test ECS loadbalanced construct', () => {
         TEST_ENVIRONMENT_VARIABLE2: 'test environment variable 2 value',
       },
       dockerLabels: { label1: 'labelValue1', label2: 'labelValue2' },
+      entryPoint: ['echo', 'ecs-is-awesome'],
+      command: ['/bin/bash'],
     },
     desiredCount: 2,
   });
@@ -66,6 +68,8 @@ test('test ECS loadbalanced construct', () => {
           label1: 'labelValue1',
           label2: 'labelValue2',
         },
+        EntryPoint: ['echo', 'ecs-is-awesome'],
+        Command: ['/bin/bash'],
       }),
     ],
   });
@@ -405,6 +409,8 @@ test('test Fargate loadbalanced construct', () => {
         TEST_ENVIRONMENT_VARIABLE2: 'test environment variable 2 value',
       },
       dockerLabels: { label1: 'labelValue1', label2: 'labelValue2' },
+      entryPoint: ['echo', 'running-on-fargate'],
+      command: ['/bin/bash'],
     },
     desiredCount: 2,
   });
@@ -436,6 +442,8 @@ test('test Fargate loadbalanced construct', () => {
           label1: 'labelValue1',
           label2: 'labelValue2',
         },
+        EntryPoint: ['echo', 'running-on-fargate'],
+        Command: ['/bin/bash'],
       }),
     ],
   });

packages/@aws-cdk/aws-ecs-patterns/test/fargate/load-balanced-fargate-service.test.ts

@@ -409,6 +409,50 @@ test('setting ALB deployment controller', () => {
   });
 });
 
+test('setting a command for taskImageOptions in an ApplicationLoadBalancedFargateService works', () => {
+  // GIVEN
+  const stack = new cdk.Stack();
+
+  // WHEN
+  new ecsPatterns.ApplicationLoadBalancedFargateService(stack, 'Service', {
+    taskImageOptions: {
+      image: ecs.ContainerImage.fromRegistry('/aws/aws-example-app'),
+      command: ['./app/bin/start.sh', '--foo'],
+    },
+  });
+  // THEN
+  Template.fromStack(stack).hasResourceProperties('AWS::ECS::TaskDefinition', {
+    ContainerDefinitions: [
+      Match.objectLike({
+        Image: '/aws/aws-example-app',
+        Command: ['./app/bin/start.sh', '--foo'],
+      }),
+    ],
+  });
+});
+
+test('setting an entryPoint for taskImageOptions in an ApplicationLoadBalancedFargateService works', () => {
+  // GIVEN
+  const stack = new cdk.Stack();
+
+  // WHEN
+  new ecsPatterns.ApplicationLoadBalancedFargateService(stack, 'Service', {
+    taskImageOptions: {
+      image: ecs.ContainerImage.fromRegistry('/aws/aws-example-app'),
+      entryPoint: ['echo', 'foo'],
+    },
+  });
+  // THEN
+  Template.fromStack(stack).hasResourceProperties('AWS::ECS::TaskDefinition', {
+    ContainerDefinitions: [
+      Match.objectLike({
+        Image: '/aws/aws-example-app',
+        EntryPoint: ['echo', 'foo'],
+      }),
+    ],
+  });
+});
+
 test('setting NLB deployment controller', () => {
   // GIVEN
   const stack = new cdk.Stack();
@@ -1165,4 +1209,4 @@ test('NetworkLoadBalancedFargateService multiple capacity provider strategies ar
       },
     ]),
   });
-});
+});