terraform apply not updating the ecs task when there is a variable update how to do force update?

Naggappan Ramukannan 0
Viewed 72

Hi team when ever i do run terraform apply it is not recreating the service task of ecs and not deploying it as well, even though i have added force deploy option as below,

resource "aws_ecs_task_definition" "pq-backend-task" {
  family = "pq-backend-task"
  container_definitions = jsonencode([
    {
      name                 = "pq-backend-container"
      image                = "${data.terraform_remote_state.infra.outputs.pq_backend_ecr_url}:latest"
      cpu                  = 2
      memory               = 4096
      essential            = true
      force_new_deployment = true
      portMappings = [
        {
          containerPort = 80
          hostPort      = 0
        }
      ]
      environment : [
        {
          "name" : "DB_PASSWORD",
          "value" : var.DB_PASSWORD
        },
        {
          "name:" : "BUILD_NO",
          "value" : var.BUILD_NO
        },
      ]
    }
  ])
}

In above example I have updated the environment variable of BUILD_NO, but terraform run always says as below,

No changes. Your infrastructure still matches the configuration. , So how should I do force update? any workaround ?

terraform-provider-aws amazon-ecs terraform amazon-web-services
1 Answers

Instead of using the latest tag, use the image digest.

You can use a data block to retrieve image digest:

data "aws_ecr_image" "service_image" {
  repository_name = "image-name"
  image_tag       = "latest"
}

Then update your container definition to: $ACCOUNT_NUMBER.dkr.ecr.$REGION.amazonaws.com/image-name:latest@${data.aws_ecr_image.service_image.image_digest}.

Edit: You also have a typo in your container definition:

        {
          "name:" : "BUILD_NO",
          "value" : var.BUILD_NO
        },

There's an extra colon next to the name attribute.

javierlga0
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