I've been facing a frustrating issue with AWS ECS where I receive a ResourceInitializationError indicating a failure to pull secrets from AWS Secrets Manager. The error message suggests there's a connection problem between my task and Secrets Manager. I noticed that the tasks tend to vanish quickly, making it hard to diagnose these intermittent deployment issues. After not making any changes, the original error resolved itself, but I've also been experiencing random pipeline failures during deployment. I'm looking for advice on how to handle these stability issues and how to retain tasks for better diagnostics.
1 Answer
I've dealt with similar issues before, and it usually boils down to the network setup. Make sure your tasks are configured properly across different Availability Zones and that at least one has access to the internet. If there's a task in a subnet without internet access, it won't be able to reach Secrets Manager, which leads to those errors. So, check your network configuration, including route tables in each subnet.
Totally agree! I’d also recommend checking the container IDs linked to the errors. They might share a common starting subnet. One trick is to launch a test EC2 instance in each of your ECS-configured subnets and see if you can connect to the Secrets Manager from there. If it's a connectivity issue, this should help you pinpoint the problem.