AWS and DevOps practice
Lab catalog
Pick a realistic AWS or DevOps failure, deploy the assets locally, and validate the fix when your investigation is complete.
Filter labs
Click a difficulty or service tag to narrow the catalog.
EC2 to RDS Connectivity Troubleshooting
A backend EC2 instance cannot connect to a PostgreSQL RDS database. Find and fix the root cause.
Cross-Region VPC Peering Troubleshooting
A cross-region private HTTP path fails across VPC peering. Find the missing route, security group rule, and network ACL rule.
75-120 minutesAround $1-$3 if destroyed after completion
Terraform IAM PassRole Debugging
Terraform can create a Lambda function, but the apply fails because of a missing or unsafe IAM permission.
45-75 minutesUsually under $1 if destroyed after completion