nist0/copilot_dev/.github/skills/engineering/devops-cloud/helm
copilot_dev/.github/skills/engineering/devops-cloud/helm/SKILL.md
# Helm (Charts, Upgrades, Rollbacks) ## When to use - Helm upgrade/install fails, hangs, or produces unexpected manifests - You suspect values drift, templating issues, hooks/CRDs ordering, or immutable field updates - You want a safe upgrade/rollback workflow (production-grade) ## Workflow 1) Collect context - Release name, namespace, chart name/version, values source (files/--set), upgrade time window - Cluster type (AKS), ingress controller, CRDs involved, recent changes 2) Validate
development
Updated Apr 8, 2026
$ install --global
skillsauthnpx skillsauth add nist0/copilotdev-tmp-consumer copilot_dev/.github/skills/engineering/devops-cloud/helmInstall this skill globally with one command. Works with Claude Code, Cursor, and Windsurf.
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SKILL.md
Helm (Charts, Upgrades, Rollbacks)
When to use
- Helm upgrade/install fails, hangs, or produces unexpected manifests
- You suspect values drift, templating issues, hooks/CRDs ordering, or immutable field updates
- You want a safe upgrade/rollback workflow (production-grade)
Workflow
- Collect context
- Release name, namespace, chart name/version, values source (files/--set), upgrade time window
- Cluster type (AKS), ingress controller, CRDs involved, recent changes
- Validate the chart locally (fast gates)
helm lint <chartDir>helm template <release> <chartDir> -n <ns> -f values.yaml > rendered.yaml- Inspect: missing env vars, missing secrets/configmaps, wrong selectors/labels, probes, resources
- Compare intent vs reality
- Get current values:
helm get values <release> -n <ns> -a - Get current manifest:
helm get manifest <release> -n <ns> - Identify drift vs expected values files
- Get current values:
- Upgrade failure triage
- History:
helm history <release> -n <ns> - Status:
helm status <release> -n <ns> - Common failure buckets:
- Hooks failing (pre/post-install jobs)
- CRDs ordering (CRDs must exist before custom resources)
- Immutable fields (e.g., Service/StatefulSet selectors, PVC)
- RBAC/permissions
- Schema validation / admission controller rejections
- Missing secrets/configmaps
- History:
- Safer upgrade patterns
- Prefer
--atomicand--waitfor production when feasible - Set explicit
--timeout - Consider disabling problematic hooks temporarily (chart-dependent)
- For risky upgrades: stage rollout (canary namespace, separate values)
- Prefer
- Rollback strategy
- Confirm target revision:
helm history - Rollback:
helm rollback <release> <rev> -n <ns> --wait --timeout 10m - Verify rollout state (pods/services/ingress)
- Confirm target revision:
- Verification checklist
kubectl rollout status deploy/<name> -n <ns>- Probes passing, error rate stable, latency stable, smoke tests succeed
- Dashboards/alerts green
Outputs
- Root cause hypothesis + evidence
- Safe mitigation steps (rollback / scale / config revert)
- Remediation steps (chart fix, values fix, hook/CRD approach)
- Verification plan and “prevent recurrence” notes (tests, chart linting, CI gates)
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