* feat: add Helm chart for Kubernetes deployment
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
* Replace bundled Bitnami subcharts with in-chart manifests on official images
The Bitnami catalog removed all versioned image tags from docker.io/bitnami in
Aug 2025 (old images frozen in bitnamilegacy, maintained catalog now behind a
Broadcom subscription), so the bundled postgresql/redis/minio subcharts no
longer pull. Replace them with plain in-chart manifests built on official
upstream images, keeping the internal/all-in-one path fully self-contained and
free of third-party chart packaging that can disappear:
- internal-postgres.yaml: pgvector/pgvector:pg17 — upstream Postgres plus the
`vector` extension the migrations require. POSTGRES_USER=dograh is the initdb
superuser, so CREATE EXTENSION vector succeeds.
- internal-redis.yaml: redis:7.4-alpine, password-protected, AOF persistence.
- internal-minio.yaml: minio/minio, root creds shared with the app via a single
secret (can't drift); the app auto-creates its bucket.
Service/secret names are unchanged (<rel>-postgresql, <rel>-redisinternal-master,
<rel>-minio) so the app wiring is untouched. Dep passwords are generated once and
persisted across upgrades via lookup. Drop the Chart.yaml dependencies,
Chart.lock, and the `helm dependency` step; the internal manifests gate on the
mode toggles (database.mode=internal, etc.).
Also fixes surfaced by smoke-testing on a live EKS cluster:
- Dockerfile: ship the per-service run_*.sh entrypoints the chart invokes.
- migrate-job: run as a post-install/pre-upgrade hook (the bundled Postgres does
not exist during pre-install) with a wait-for-postgres init container.
- backend env: declare POSTGRES_PASSWORD/REDIS_PASSWORD before the DATABASE_URL/
REDIS_URL that interpolate them (Kubernetes only expands back-references).
- worker liveness probes: pgrep isn't in the slim runtime image; check
/proc/1/cmdline instead (each worker execs its process as PID 1).
- UI: set HOSTNAME=0.0.0.0 so Next.js standalone doesn't bind to the k8s-injected
pod name (which maps to the pod IP only, breaking port-forward/loopback).
Verified end-to-end on EKS 1.36: all pods Ready, migrations applied (pgvector
extension + 27 tables), UI login page and web API served via port-forward.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
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Co-authored-by: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
