Graham McIntire
50324c61ce
Add PromEx with Application/BEAM/Phoenix/LiveView/Ecto/Oban plugins plus a custom plugin that bridges existing Towerops Oban/Redis telemetry events. The metrics HTTP server runs isolated on port 9568 so scrape traffic never traverses the public Traefik IngressRoute. The pod template carries prometheus.io annotations (scrape, port, path, job) so the external Prometheus on 10.0.15.31 discovers each pod through the existing kubernetes-pods scrape job (apiserver-proxy). |
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|---|---|---|
| .. | ||
| base-image | ||
| certificate.yaml | ||
| deployment.yaml | ||
| Dockerfile | ||
| Dockerfile.base | ||
| ingressroute.yaml | ||
| kustomization.yaml | ||
| namespace.yaml | ||
| poddisruptionbudget.yaml | ||
| README.md | ||
| service-headless.yaml | ||
| service.yaml | ||
| traefik-security-headers-middleware.yaml | ||
Kubernetes Deployment
Secrets Management
Secrets are managed directly in the cluster and must be created before deploying the application.
Required secrets in the towerops namespace:
gitlab-registry- Docker registry credentials for pulling imagestowerops-secrets- Application secrets (RELEASE_COOKIE, SECRET_KEY_BASE)towerops-db- Database connection credentialstowerops-aws- AWS credentials (AWS_ACCESS_KEY_ID, AWS_SECRET_ACCESS_KEY, AWS_REGION)
For local development, the project root .envrc is used by direnv.
Deployment Timestamp
The application footer displays the deployment timestamp to track when the current version was deployed. This is automatically set by GitLab CI during deployment:
# GitLab CI sets this during deploy
- kubectl set env deployment/towerops DEPLOY_TIMESTAMP=$(date -u +"%Y-%m-%dT%H:%M:%SZ") -n towerops
All pods in the deployment share the same timestamp (when the deployment was initiated), regardless of when individual pods were created. This is displayed in the footer as "Last deployed X ago · YYYY-MM-DD HH:MM:SS UTC".
For manual deployments without GitLab CI, set the timestamp:
kubectl set env deployment/towerops DEPLOY_TIMESTAMP=$(date -u +"%Y-%m-%dT%H:%M:%SZ") -n towerops
Deploying
Apply all resources using kustomize:
kubectl apply -k k8s/
Or individually:
kubectl apply -f k8s/namespace.yaml
kubectl apply -f k8s/secret.yaml
kubectl apply -f k8s/deployment.yaml
kubectl apply -f k8s/service.yaml
kubectl apply -f k8s/service-headless.yaml
kubectl apply -f k8s/certificate.yaml
kubectl apply -f k8s/ingressroute.yaml