ECS Troubleshooting FAQs

Question 1

What ECS task states does this skill cover?

Accepted Answer

It provides detailed troubleshooting for tasks stuck in PENDING or transitioning to STOPPED, including deep dives into specific exit codes like 137 (OOM) and 1 (Application Error).

Question 2

Does it support both EC2 and Fargate?

Accepted Answer

Yes, the guides and commands are designed to work across both ECS launch types, including capacity provider checks and ENI provisioning diagnostics.

Question 3

Can I use this for network debugging between services?

Accepted Answer

Absolutely. It covers VPC connectivity, Security Group rules for ALB-to-ECS traffic, and service-to-service communication requirements.

Question 4

Can it help with image pull errors?

Accepted Answer

Yes, it includes specific diagnostic steps for CannotPullContainerError, including ECR permissions, VPC endpoint configuration, and NAT Gateway verification.

Question 5

How does it assist with IAM and permissions issues?

Accepted Answer

It provides Terraform templates and CLI commands to verify Task Execution Roles, Secrets Manager access, and SSM permissions for ECS Execute Command.

ECS Troubleshooting

Key Features

Use Cases

ECS Troubleshooting

Key Features

Use Cases