Deploy to AWS ECS without Task Defintion

[Joshua Nordstrom]

Pipe in Question:

https://support.atlassian.com/bitbucket-cloud/docs/deploy-to-amazon-ecs/

https://bitbucket.org/atlassian/aws-ecs-deploy/src/master/

Description:

I would like to be able to deploy to ECS without using a new task definition and instead using the FORCE_NEW_DEPLOYMENT option to update the service to pull the `:latest` image from ECR.

The amazon cli update-service command provides this functionality. See the note. I want to be able to run this command:

aws ecs update-service --cluster $CLUSTER_NAME --service $SERVICE_NAME --force-new-deployment

Our use case is that we have cloudformation templates in a repo hat manages our IFA (infrastructure as code) separate from the application code. Thus, we would prefer to maintain the Task Definition in the IFA repo. But if we want to use this pipe, then we need to maintain the Task Definition in the application code.

Problem:

Currently, the `TASK_DEFINITION` is required in order for the pipe to complete successfully. So this prevents us from using the FORCE_NEW_DEPLOYMENT only.

Solution:

I propose making the TASK_DEFINITION optional so that we can force a new deployment without the need of the task definition. 

Here's an example of how the yaml would look:

pipelines:
  branches:
    development:
      - step:
          name: Build and Push image to ECR
          script:
            - docker build -f Dockerfile.prod -t <value> .
            - pipe: atlassian/aws-ecr-push-image:1.2.1
              variables:
                   IMAGE_NAME: <value>
          services:
            - docker
          caches:
            - docker
      - step:
          name: Deploy to ECS
          script:
            - pipe: atlassian/aws-ecs-deploy:1.2.1
              variables:
                CLUSTER_NAME: <value>
                SERVICE_NAME: <value>
                FORCE_NEW_DEPLOYMENT: true

[Oleksandr Kyrdan · Accepted solution]

Hi @Joshua Nordstrom ,

we have released the new version of the atlassian/aws-ecs-deploy:1.4.0 pipe with the TASK_DEFINITION variable optional.

In the Advanced examples of the README, you could find details:

If your updated Docker image uses the same tag as what is in the existing task definition for your service (for example, my_image:latest ), you do not need to create a new revision of your task definition. You can update the service using the FORCE_NEW_DEPLOYMENT option. The new tasks launched by the deployment pull the current image/tag combination from your repository when they start.

script:
  - pipe: atlassian/aws-ecs-deploy:1.4.0
    variables:
      AWS_ACCESS_KEY_ID: $AWS_ACCESS_KEY_ID
      AWS_SECRET_ACCESS_KEY: $AWS_SECRET_ACCESS_KEY
      AWS_DEFAULT_REGION: 'us-east-1'
      CLUSTER_NAME: 'my-ecs-cluster'
      SERVICE_NAME: 'my-ecs-service'
      FORCE_NEW_DEPLOYMENT: 'true'

Welcome to provide us with your feedback about the pipe.


Cheers,
Oleksandr

[Joshua Nordstrom]

Woohoo!! Thank you for adding this functionality.

[Galyna Zholtkevych]

@Joshua Nordstrom thanks for raising a case!

We will discuss this change within a team.

I'll notify about updates.

Cheers, Galyna