AWS DevOps Engineer Professional
942 incident response problems that help with AWS DevOps Engineer Professional prep.
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All problems (942)
CICD-1386A reusable workflow signs artifacts successfully and verification failsArtifact signing is introduced and later verification fails only on outputs emitted by one pool of self-hosted runners.CI/CDAdvanced14 minProCICD-1310A self-hosted runner wrapper update breaks relative volume mountsA self-hosted deployment job fails after a runner service or wrapper upgrade without any change to the compose file itself.CI/CDIntermediate14 minProCICD-1406A supply-chain attestation verifies on hosted runners and fails on one self...A supply-chain attestation verifies on hosted runners and fails on one self... focuses on Runner Hygiene and asks the reader to isolate the key signal in GitHub. Supply-chain verification can break on locale and formatting drift e...CI/CDAdvanced14 minProCICD-1432A Terraform Cloud apply keeps waiting for a run task that already respondedA Terraform Cloud apply keeps waiting for a run task that already responded focuses on execution-context and asks the reader to isolate the key signal in hashicorp. External approval integrations can deadlock on tiny path-signature m...CI/CDAdvanced14 minProCICD-1422A Terraform Cloud apply stays blocked behind a phantom run taskA Terraform Cloud apply stays blocked behind a phantom run task focuses on execution-context and asks the reader to isolate the key signal in hashicorp. External run-task integrations can deadlock on duplicate callback...CI/CDAdvanced14 minProCICD-1442A Terraform Cloud run task replies approve and the run still waitsA Terraform Cloud run task replies approve and the run still waits focuses on execution-context and asks the reader to isolate the key signal in hashicorp. Small path rewrites at proxies can create a second callback identity and...CI/CDAdvanced14 minProCICD-1404An Argo CD sync wave rollout never reaches the final jobAn Argo CD sync wave rollout never reaches the final job focuses on Deployment Governance and asks the reader to isolate the key signal in GitHub. Hook ordering bugs often appear when tooling mixes numeric and string comparisons for seemingly ident...CI/CDAdvanced14 minProCICD-024Manual approval gate skips production environment reviewManual approval gate skips production environment review is a hands-on troubleshooting drill. A workflow was expected to pause before production, but a condition mismatch causes the approval gate to be skipped. GitHub GitHub Actions Workflows needs to be checked by narrowing s...CI/CDBeginner14 minProCICD-1306A BuildKit push works manually on the runner but fails in automationA self-hosted runner pushes images successfully by hand and fails only inside the CI job using BuildKit or buildx.CI/CDIntermediate15 minProCICD-1296A cache migration to the new backend breaks one monorepoA monorepo upgrades cache actions and starts seeing odd dependency drift between package builds.CI/CDIntermediate15 minProCICD-1282A canceled deployment keeps every later release blockedA release job is manually canceled during an outage drill, and every subsequent deployment remains stuck in queued or waiting state.CI/CDIntermediate15 minProCICD-1272A checkout step fails only after repository ownership hardeningA self-hosted runner begins failing on fetch, submodule, or describe steps after a host hardening or container ownership change.CI/CDIntermediate15 minProCICD-1269A deployment job waits forever on environment approvalA deployment pipeline was refactored into reusable pieces and later one stage keeps waiting even though human approval already happened.CI/CDIntermediate15 minProCICD-1290A deployment reports the new image tag correctly but Kubernetes still rolls backA team standardizes image tags and suddenly deployments roll back despite successful image publication.CI/CDIntermediate15 minProCICD-1300A generated artifact downloads correctly but unzip fails only on Windows runnersA cross-platform workflow publishes one shared artifact and later only Windows jobs fail to unpack it.CI/CDIntermediate15 minProCICD-1315A registry retention cleanup removes a digest still referenced by a manifest listA registry cleanup policy appears safe until one platform begins failing pulls from a still-present multi-arch tag.CI/CDIntermediate15 minProCICD-1276A release job creates the image correctly but the deploy host still pulls the previous versionA release pipeline reports success and later the runtime still runs yesterday's image even though the registry contains the new one.CI/CDIntermediate15 minProCICD-1293A secrets: inherit rollout still breaks one reusable workflowOne shared deployment workflow works in some repos and fails in another after secret inheritance was adopted.CI/CDIntermediate15 minProCICD-1295A self-hosted runner builds once and then fails on rerunA self-hosted runner succeeds on first execution and later begins failing on rerun or retry flows.CI/CDIntermediate15 minProCICD-003Adding an approval stage to an unverified production deployment pipelineA template-style problem for designing an approval flow and staging verification with per-environment deployment boundaries.CI/CDBeginner15 minPro