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StatefulSet-based deployment with:
- Pipeline config via ConfigMap (inline or existing)
- Secrets for credentials only (user/password) — expanded via ${VAR}
in pipeline config at startup
- PVC for SQLite checkpoints + DLQ (persistent across restarts)
- Liveness (/health) and readiness (/ready) probes
- Prometheus metrics port (9000) with optional ServiceMonitor
- Configurable resources, security context, scheduling
- PodDisruptionBudget for multi-replica
- `terminationGracePeriodSeconds: 30` for graceful checkpoint flush
Located at deploy/helm/deltaforge/ following CNCF convention.
Usage:
helm install deltaforge ./deploy/helm/deltaforge \
--set secrets.create=true \
--set secrets.data.MYSQL_USER=cdc_user \
--set secrets.data.MYSQL_PASSWORD=s3cret
Verified: helm lint (0 failures), helm template (all variants render).
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What
Helm chart at
deploy/helm/deltaforge/for deploying DeltaForge on Kubernetes. Deployment guide atdocs/src/deployment.md.Chart features:
${VAR}in DSN at startup/health) and readiness (/ready) probesterminationGracePeriodSeconds: 30for graceful checkpoint flushDocs:
docs/src/deployment.md: Docker, Docker Compose, Kubernetes/Helm deployment guideTested on k3d: chart installs, pod starts, config loads, retry logic works. Validated with
helm lint+helm templatefor all value combinations.Why
Helm chart is the biggest adoption friction reducer for Kubernetes users and the foundation for the future operator (PipelineTemplate, PipelinePool, auto-scaling for 300+ source clusters).
Testing
helm lint deploy/helm/deltaforge- 0 failureshelm templateverified for: default values, ServiceMonitor, Secret creation, postgres backend, existingConfigMap, multi-replica PDBmdbook build docs/- buildsChecklist
cargo test)cargo fmt)