DevOps Practice on Real Systems
DevOps is judged by whether you can keep real systems running. These are real, mid-to -senior ops problems in a live cloud workspace - a 502 to trace, drift to reconcile, a broken pipeline - not quizzes.
Why real ops beats certs alone
Certifications prove you studied; fixing real systems proves you can do the work. The second is what gets you hired and what these practice on, end to end.
18 challenges to practice
Ship a Zero-Downtime Blue-Green DeployDevOps · SeniorPackage an App as a Helm ChartDevOps · SeniorMove Secrets Into HashiCorp VaultDevOps · SeniorTrace an Nginx 503 CascadeDevOps · MidPlug a Postgres Connection Pool LeakDevOps · MidIndex a Slow Postgres Search QueryDevOps · MidConfigure an Nginx Rate LimitDevOps · MidMake an App Wait for Postgres on StartupDevOps · MidRefactor Terraform Into a Reusable ModuleDevOps · MidReconcile Terraform State DriftDevOps · MidRepair a Broken Prometheus Scrape ConfigDevOps · MidWrite an Idempotent Ansible PlaybookDevOps · MidDesign an Observability StackDevOps · MidSpeed Up a Slow GitHub Actions PipelineDevOps · MidMigrate a Postgres Database With Zero DowntimeDevOps · MidWire Up an AWS SQS Dead-Letter QueueDevOps · MidLoad Config From AWS SSM Parameter StoreDevOps · MidProvision an AWS VPC and Security GroupDevOps · Mid
What to practice
Spread across web servers, containers, infra-as-code, and pipelines rather than one tool. Breadth is what a DevOps role demands, and each fix is a portfolio piece.
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