feat: Helm chart + deploy runbook/SLOs for hosted environments - #179
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Add deploy/ with a Helm chart for a horizontally scaled Flakemetry: stateless api/worker/web with HorizontalPodAutoscalers, a pre-install migration hook that never seeds, secret/configmap wiring, and ingress. The chart runs against a managed Postgres and object store — never bundling a database. Ships an example production values file, a deploy guide with one documented path from zero to a running environment, and an operations runbook with SLOs and a symptom-to-action table. A helm CI workflow lints and templates the chart on every change.
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Part of #52 — the documented path from zero to a horizontally scaled, hosted Flakemetry.
What's in it
deploy/helm/flakemetry— a Helm chart forapi/worker/web:prisma migrate deploy) that never seeds — production data is untouched.values.schema-friendlyvalues.yaml.deploy/helm/example-values.yaml— a documented production values file.deploy/README.md— one documented path from zero to a running environment (provision → publish images → configure →helm install).deploy/RUNBOOK.md— SLOs, error-budget policy, scaling guidance, upgrade/rollback, and a symptom→action table..github/workflows/helm.yml— CI lints and templates the chart on every change so it can't rot.Verification
helm lint— clean.helm template— renders 11 resources (ServiceAccount, Secret, 2 Services, 3 Deployments, 2 HPAs, Ingress, migrate Job); required-value guards fire on missingdatabase.url/auth.secret;existingSecretsuppresses the managed Secret; AI env is wired into worker + web when enabled.pnpm turbo run build lint typecheck test— 61/61 green;pnpm format:checkclean (helm templates excluded from Prettier, validated byhelm lintinstead).Deliberately scoped out (follow-up)
Terraform modules for the managed dependencies and reference dogfood OTel dashboards for the platform's own telemetry are filed as a follow-up rather than shipped unverifiable here. The Helm-against-managed-deps path already satisfies the issue's core acceptance criterion.