# =============================================================================
# Grafana -- tableaux de bord (logs Loki + metriques Prometheus)
# =============================================================================
# Expose sur grafana.xpeditis.com, protege par TROIS couches :
#   1. le firewall Hetzner (seules les IP Cloudflare atteignent le serveur)
#   2. le middleware Traefik admin-ip-allowlist (vos IP d'administration)
#   3. l'authentification Grafana (Secret grafana-admin)
# L'inscription et l'acces anonyme sont desactives.
---
apiVersion: v1
kind: ConfigMap
metadata:
  name: grafana-provisioning
  namespace: monitoring
data:
  datasources.yaml: |
    apiVersion: 1
    datasources:
      - name: Loki
        type: loki
        access: proxy
        url: http://loki:3100
        isDefault: false
        jsonData:
          maxLines: 2000
      - name: Prometheus
        type: prometheus
        access: proxy
        url: http://prometheus:9090
        isDefault: true
        jsonData:
          timeInterval: 30s

  dashboards.yaml: |
    apiVersion: 1
    providers:
      - name: xpeditis
        orgId: 1
        folder: Xpeditis
        type: file
        disableDeletion: false
        updateIntervalSeconds: 60
        allowUiUpdates: true
        options:
          path: /var/lib/grafana/dashboards
---
apiVersion: v1
kind: PersistentVolumeClaim
metadata:
  name: grafana-data
  namespace: monitoring
spec:
  accessModes: [ReadWriteOnce]
  storageClassName: local-path
  resources:
    requests:
      storage: 5Gi
---
apiVersion: apps/v1
kind: Deployment
metadata:
  name: grafana
  namespace: monitoring
  labels:
    app.kubernetes.io/name: grafana
spec:
  replicas: 1
  strategy:
    type: Recreate
  selector:
    matchLabels:
      app.kubernetes.io/name: grafana
  template:
    metadata:
      labels:
        app.kubernetes.io/name: grafana
    spec:
      securityContext:
        runAsNonRoot: true
        runAsUser: 472
        runAsGroup: 472
        fsGroup: 472
        seccompProfile:
          type: RuntimeDefault
      containers:
        - name: grafana
          image: grafana/grafana:11.4.0
          ports:
            - name: http
              containerPort: 3000
          env:
            - name: GF_SECURITY_ADMIN_USER
              valueFrom:
                secretKeyRef:
                  name: grafana-admin
                  key: admin-user
            - name: GF_SECURITY_ADMIN_PASSWORD
              valueFrom:
                secretKeyRef:
                  name: grafana-admin
                  key: admin-password
            - name: GF_SERVER_ROOT_URL
              value: "https://grafana.xpeditis.com"
            - name: GF_USERS_ALLOW_SIGN_UP
              value: "false"
            - name: GF_AUTH_ANONYMOUS_ENABLED
              value: "false"
            # Empeche l'integration de Grafana dans une iframe tierce.
            - name: GF_SECURITY_ALLOW_EMBEDDING
              value: "false"
            - name: GF_SECURITY_COOKIE_SECURE
              value: "true"
            - name: GF_SECURITY_COOKIE_SAMESITE
              value: "strict"
            - name: GF_SECURITY_STRICT_TRANSPORT_SECURITY
              value: "true"
            - name: GF_ANALYTICS_REPORTING_ENABLED
              value: "false"
            - name: GF_ANALYTICS_CHECK_FOR_UPDATES
              value: "false"
            # Les alertes sont evaluees par Prometheus et routees par
            # Alertmanager : l'alerting Grafana ferait doublon.
            - name: GF_UNIFIED_ALERTING_ENABLED
              value: "false"
            - name: GF_ALERTING_ENABLED
              value: "false"
          readinessProbe:
            httpGet:
              path: /api/health
              port: http
            initialDelaySeconds: 20
          livenessProbe:
            httpGet:
              path: /api/health
              port: http
            initialDelaySeconds: 60
            periodSeconds: 30
          resources:
            requests:
              cpu: 50m
              memory: 128Mi
            limits:
              cpu: 500m
              memory: 512Mi
          securityContext:
            allowPrivilegeEscalation: false
            capabilities:
              drop: ["ALL"]
          volumeMounts:
            - name: provisioning-datasources
              mountPath: /etc/grafana/provisioning/datasources
            - name: provisioning-dashboards
              mountPath: /etc/grafana/provisioning/dashboards
            - name: dashboards
              mountPath: /var/lib/grafana/dashboards
            - name: data
              mountPath: /var/lib/grafana
      volumes:
        - name: provisioning-datasources
          configMap:
            name: grafana-provisioning
            items:
              - key: datasources.yaml
                path: datasources.yaml
        - name: provisioning-dashboards
          configMap:
            name: grafana-provisioning
            items:
              - key: dashboards.yaml
                path: dashboards.yaml
        # Cree par scripts/deploy-monitoring.sh depuis infra/logging/grafana/.
        - name: dashboards
          configMap:
            name: grafana-dashboards
            optional: true
        - name: data
          persistentVolumeClaim:
            claimName: grafana-data
---
apiVersion: v1
kind: Service
metadata:
  name: grafana
  namespace: monitoring
spec:
  type: ClusterIP
  selector:
    app.kubernetes.io/name: grafana
  ports:
    - name: http
      port: 3000
      targetPort: http
---
apiVersion: networking.k8s.io/v1
kind: Ingress
metadata:
  name: grafana
  namespace: monitoring
  annotations:
    traefik.ingress.kubernetes.io/router.entrypoints: websecure
    traefik.ingress.kubernetes.io/router.tls: "true"
    traefik.ingress.kubernetes.io/router.middlewares: monitoring-admin-ip-allowlist@kubernetescrd,monitoring-security-headers@kubernetescrd
spec:
  ingressClassName: traefik
  tls:
    - hosts:
        - grafana.xpeditis.com
      secretName: grafana-tls
  rules:
    - host: grafana.xpeditis.com
      http:
        paths:
          - path: /
            pathType: Prefix
            backend:
              service:
                name: grafana
                port:
                  name: http