▸case-02 In our release pipeline, developers push release images tagged with `latest` and `v1.2` to Amazon ECR, overwriting `latest` on every release. What artifact tagging rule should the release pipeline checklist enforce to ensure deterministic rollbacks and immutability? | pass→pass | 9,503 | 9,449 | -1% | 1 | 1 | 0% | 1,805 | 1,689 | -6% | 0 | 0 | — |
▸case-01 We are preparing a release pipeline for a high-traffic PostgreSQL backend where a schema update drops a deprecated column `legacy_user_id`. Developers want to run `ALTER TABLE users DROP COLUMN legacy_user_id` directly in the pre-deployment migration step before rolling out new application code. What pre-release database migration check should be mandated in the release checklist to prevent production outages? | pass→pass | 10,682 | 11,607 | +9% | 1 | 1 | 0% | 1,910 | 1,919 | +0% | 0 | 0 | — |
▸case-03 When executing a canary release of our microservice to Kubernetes using Argo Rollouts, engineers suggested monitoring the canary for 5 minutes manually before promoting to 100%. What automated release checklist requirement should be enforced for canary promotion? | pass→pass | 9,611 | 9,449 | -2% | 1 | 1 | 0% | 1,777 | 1,747 | -2% | 0 | 0 | — |
▸case-04 Before deploying a release artifact to production, the release manager suggests skipping container vulnerability scans if all unit tests pass to speed up deployment time. What security verification check must be mandated in the pre-release checklist? | pass→pass | 7,374 | 8,610 | +17% | 1 | 1 | 0% | 1,264 | 1,388 | +10% | 0 | 0 | — |
▸case-05 A release includes a database migration adding a non-null column `tenant_id` without a default value to the `orders` table. The team plans to deploy code that populates `tenant_id` at the same time as the migration. What rollback risk check should the release checklist enforce? | pass→pass | 8,334 | 8,709 | +4% | 1 | 1 | 0% | 1,261 | 1,503 | +19% | 0 | 0 | — |
▸case-06 A team wants to bundle a high-risk UI overhaul release directly into the main deployment payload without wrapping it in feature flags, assuming that running full staging tests is sufficient risk mitigation. What release pipeline control should be added to the checklist? | fail→pass | 7,608 | 7,658 | +1% | 1 | 1 | 0% | 1,257 | 1,282 | +2% | 0 | 0 | — |
▸case-07 During release preparation, an application failed in staging because a newly introduced environment variable `REDIS_CLUSTER_URL` was missing from the staging environment configuration. What pre-deployment environment check should the release checklist specify? | pass→pass | 6,731 | 9,449 | +40% | 1 | 1 | 0% | 1,144 | 1,367 | +19% | 0 | 0 | — |
▸case-08 Developers are tagging release commits with arbitrary strings like `release-2023-final-v2` in git. What versioning standard check should the release checklist enforce for production releases? | pass→pass | 9,882 | 7,942 | -20% | 1 | 1 | 0% | 1,943 | 1,517 | -22% | 0 | 0 | — |
▸case-09 To save infrastructure costs, the staging environment runs single-node SQLite while production runs a multi-node PostgreSQL cluster with read replicas. What environment verification step should the release checklist mandate? | fail→fail | 10,754 | 11,159 | +4% | 1 | 1 | 0% | 1,750 | 1,600 | -9% | 0 | 0 | — |
▸case-10 A developer wants to trigger a production release directly from an unmerged topic branch on their fork because the PR review is taking too long. What source control rule should the release pipeline checklist mandate? | pass→pass | 6,379 | 4,003 | -37% | 1 | 1 | 0% | 1,070 | 639 | -40% | 0 | 0 | — |
▸case-11 Once Kubernetes finishes updating all pods during a release, the CD pipeline immediately marks the pipeline status as succeeded and notifies Slack. What post-deployment verification check is missing from the release pipeline? | pass→pass | 8,147 | 7,827 | -4% | 1 | 1 | 0% | 1,471 | 1,340 | -9% | 0 | 0 | — |
▸case-12 A team deploying a new HTTP service endpoint omitted OpenTelemetry headers and metrics emission from the code path, planning to add them in a subsequent maintenance release. What observability pre-flight check should the release pipeline enforce? | pass→pass | 11,059 | 8,888 | -20% | 1 | 1 | 0% | 1,525 | 1,428 | -6% | 0 | 0 | — |
▸case-13 For a monolithic web application deployment on AWS EC2, the current pipeline stops all running instances, updates the binary, and starts them back up, causing 3 minutes of downtime per release. What deployment pattern check should the release checklist require? | pass→pass | 7,985 | 7,958 | -0% | 1 | 1 | 0% | 1,293 | 1,401 | +8% | 0 | 0 | — |
▸case-14 A team publishes release artifacts without generating a changelog, relying on commit log history if customers or internal auditors ask what changed. What documentation requirement should the release pipeline checklist mandate? | fail→fail | 7,317 | 9,832 | +34% | 1 | 1 | 0% | 1,389 | 1,420 | +2% | 0 | 0 | — |
▸case-15 Software binaries are built in GitHub Actions and pushed directly to public download S3 buckets without cryptographic verification. What software supply chain security check should the release pipeline checklist enforce? | pass→pass | 12,400 | 8,670 | -30% | 1 | 1 | 0% | 1,611 | 1,592 | -1% | 0 | 0 | — |
▸case-16 A microservice exposes only a simple `/health` endpoint that returns 200 OK as soon as the process starts, before connecting to the database or warming up local caches. Kubernetes routes traffic immediately, causing initial 500 errors. What health check configuration check should the release checklist require? | pass→pass | 6,509 | 8,796 | +35% | 1 | 1 | 0% | 1,247 | 1,461 | +17% | 0 | 0 | — |
▸case-17 After shifting 10% of production traffic to a new canary deployment, the release script immediately promotes traffic to 100% within 10 seconds if no HTTP 500 errors occur. What bake-time requirement should the release checklist specify? | pass→pass | 9,953 | 30,598 | +207% | 1 | 1 | 0% | 1,802 | 1,593 | -12% | 0 | 0 | — |
▸case-18 The team maintains a deployment pipeline but has never tested rolling back a failed deployment, assuming `helm rollback` will always work flawlessly when needed. What operational readiness check should the release checklist mandate? | pass→pass | 15,758 | 9,834 | -38% | 1 | 1 | 0% | 1,418 | 1,637 | +15% | 0 | 0 | — |
▸case-19 An engineer updates Terraform files for production security groups and runs `terraform apply` directly inside the CD pipeline without human approval or plan diff review. What IaC safety check should the release checklist enforce? | pass→pass | 6,760 | 7,965 | +18% | 1 | 1 | 0% | 1,181 | 1,471 | +25% | 0 | 0 | — |
▸case-20 During a production deployment that incurs unexpected error spikes, the deployment team spends 20 minutes drafting internal status page updates from scratch. What operational release check should be included in the release checklist? | pass→pass | 6,264 | 13,217 | +111% | 1 | 1 | 0% | 1,111 | 923 | -17% | 0 | 0 | — |
▸case-21 An incident post-mortem revealed that an upstream third-party payment gateway API degraded, causing customer checkout timeouts. What root cause analysis methodology should be used to document this operational incident? | pass→pass | 13,423 | 11,761 | -12% | 1 | 1 | 0% | 2,269 | 1,857 | -18% | 0 | 0 | — |
▸case-22 In GitHub Actions, how do you define a job matrix strategy to test a Node.js application across versions 18, 20, and 22 in parallel? | pass→pass | 6,127 | 6,926 | +13% | 1 | 1 | 0% | 1,330 | 1,462 | +10% | 0 | 0 | — |
▸case-23 When configuring Prometheus TSDB storage retention on a Kubernetes monitoring cluster, what flag controls the retention time for collected metrics history? | pass→pass | 7,143 | 6,094 | -15% | 1 | 1 | 0% | 1,143 | 926 | -19% | 0 | 0 | — |