LocalStack ECS deployment parameters drift from template values

warning

configurationUpdated May 2, 2024(via Exa)

Sources

bug: settings for ALB and ECS in template files are overwritten by tflocal/LocalStack on deploy · Issue #56 · localstack/terraform-localgithub.com

Technologies:

LocalStacksubject

Amazon ECSSymptoms of this issue are visible in Amazon ECS metrics and logs

How to detect:

LocalStack changes ECS service deployment_maximum_percent from 100 to 200 and deployment_minimum_healthy_percent from 50 to 100 on initial deployment, causing Terraform state drift on subsequent plan/apply operations.

Recommended action:

Set deployment_maximum_percent to 200 and deployment_minimum_healthy_percent to 100 in Terraform templates to match LocalStack's defaults, or avoid re-applying after initial deployment.