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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.

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Showing labs related to Terraform.

All labs Beginner Intermediate API Gateway CloudWatch DynamoDB EC2 GitHub Actions Terraform

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.

published

Intermediate VPC EC2 VPC Peering Security Groups Network ACLs Terraform

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.

published

Intermediate IAM Lambda Terraform GitHub Actions

45-75 minutesUsually under $1 if destroyed after completion

The Inventory API That Lost Its Stock

A release broke stock reservations while the database still contains inventory. Follow the request through an authenticated API, fix two hidden dependencies, and prevent overselling.

published

Intermediate API Gateway Lambda DynamoDB IAM CloudWatch Terraform

60–90 minutesBudget $1 for a short session; AWS charges vary. Destroy resources afterwards.

The Orders That Never Shipped

Customers paid, but warehouse receipts stopped arriving. Trace a serverless order pipeline, restore delivery, and keep one bad order from delaying the rest.

published

Intermediate SQS Lambda S3 IAM CloudWatch Terraform

60–90 minutesBudget $1 for a short session; AWS charges vary. Destroy resources afterwards.