mg4/k8s/README.md

Kubernetes manifests — car.k8s.stinnesbeck.com

Plain manifests for the car server, InfluxDB 2 and Grafana. They are only files: nothing here is applied automatically. Apply them yourself.

File	What
namespace.yaml	Namespace mg4
influxdb.yaml	InfluxDB 2.7.12 StatefulSet (10Gi PVC, default storage class), cluster-internal Service, NetworkPolicy admitting only the server and Grafana
server.yaml	Go server Deployment (1 replica, non-root, read-only root filesystem) and Service
grafana.yaml	Grafana 13.2.3 Deployment (1Gi PVC), Service; datasource and dashboards provisioned
grafana/	The provisioned InfluxDB datasource and the MG4 dashboards (Live, Consumption, Charging)
ingress.yaml	Traefik IngressRoutes for car.k8s.stinnesbeck.com and Grafana, TLS from Traefik's default certificate
secrets.example.yaml	Template for the Secrets; placeholders only, not in kustomization.yaml
secrets.yaml	Your filled-in copy — gitignored, never committed
kustomization.yaml	Everything except the Secrets; pins the server image, generates the Grafana ConfigMaps

Before the first apply

1. Check ingress.yaml: the ingress class (placeholder traefik-external for the public Traefik) and Grafana's host (placeholder car-grafana.k8s.stinnesbeck.com). Both hosts must be covered by Traefik's default certificate.
2. Create the Secrets. cp k8s/secrets.example.yaml k8s/secrets.yaml (gitignored), replace every CHANGE-ME there (openssl rand -hex 32): influxdb-auth, mg4-server (ingest token, approval password for pairing, your ABRP API key and user token) and grafana-admin. Keep secrets.example.yaml itself on placeholders only.
3. Registry access. The mg4-server package on git.stinnesbeck.com is public, so no pull secret is needed. If you make it private, add an imagePullSecrets entry to server.yaml.

Apply

kubectl apply -f k8s/namespace.yaml
kubectl apply -f k8s/secrets.yaml
kubectl apply -k k8s/

Notes

• InfluxDB's setup mode runs only on an empty volume. Changing admin-token in the Secret later does not change the token inside InfluxDB.
• The server and Grafana use the InfluxDB admin token. A token scoped to the mg4 bucket (read for Grafana, read/write for the server) can replace it later.
• The dashboards are read-only in Grafana's UI. Change the JSON in grafana/dashboards/; the ConfigMap name changes with its content, which rolls Grafana.
• The server image is pinned by digest in kustomization.yaml. To upgrade, push a new tag and put its digest there (skopeo inspect docker://git.stinnesbeck.com/nils/mg4-server:<tag>).