Hi everyone, I have an issue with ECS blue-green deployment. When I deploy it for the first time, it works fine but when I run

pulumi up

again, I'm getting following exception. As I understand this is expected, but I can't make any changes on my stack. I can use code deploy for ECS deployment, that's ok. But I want to make some changes on other things and I'm not able to. Is there a workaround for this? Here is my code.

* updating ECS Service (arn:aws:ecs:us-east-1:xxxxx): operation error ECS: UpdateService, https response error StatusCode: 400, RequestID: xxxxxxxx, InvalidParameterException: Unable to update task definition on services with a CODE_DEPLOY deployment controller. Use AWS CodeDeploy to trigger a new deployment.

You could ignore the changes that trigger the ECS service to be updated: https://www.pulumi.com/docs/iac/concepts/options/ignorechanges/?utm_campaign=NA-Perf[…]cmfYu8RdZhfi7tVDIyH3luzWv3lOlTvJC1sRE5JfBYFBNgFoaAut1EALw_wcB

Annoyingly ignoring doesn't work. I'm still getting the same error. There is a similar issue in here

What value did you try for

ignoreChanges

?

I'm passing following. I understand why it's happening. It looks like

new awsx.ecs.FargateService

is no respecting

ignoreChanges

parameter, but

new aws.ecs.Service

does. Probably I'll need to refactor my original code to use new

aws.ecs.Service

instead of

awsx.ecs.FargateService

.

ignoreChanges: ['desiredCount', 'loadBalancers', 'taskDefinition'],

Ah, you're using a component. Components do not pass ignoreChanges to the child resources they're creating. You can use the

transforms

resource option to set ignore changes on the child resources: https://www.pulumi.com/docs/iac/concepts/options/transforms/

Interesting, then why are they accepting it as parameter?

ignoreChanges

is part of the generic base class for all resources. It's not like components do not support

ignoreChanges

, but it's up to the component implementor to decide how to pass that to the components childs. In most cases this is difficult to implement given that you rarely want

ignoreChanges

to apply to all the child resources.

ok thanks. That makes sense but I don't think it's clear in the documentation. Following transformation helped.

transforms: [
        (args) => {
          if (args.type === 'aws:ecs/service:Service') {
            return {
              props: args.props,
              opts: pulumi.mergeOptions(args.opts, {
                ignoreChanges: ['desiredCount', 'loadBalancers', 'taskDefinition'],
              }),
            }
          }
          return undefined
        },
      ],