# =============================================================================
# Grafana (TASK-0135, phase-15) — Deployment + Service, ns `monitoring`.
#
# Provisioning + dashboards are generated into ConfigMaps by kustomization.yaml
# FROM infrastructure/observability/grafana/ (single source of truth):
#   /etc/grafana/provisioning/datasources/datasource.yaml   (uid factory-prometheus)
#   /etc/grafana/provisioning/dashboards/dashboards.yaml    (provider → folder "Factory")
#   /var/lib/grafana/dashboards/*.json                      (the six dashboards)
#
# The admin password comes from the `grafana-admin` secret (key
# admin-password) — create it before applying (like factory-secrets):
#   kubectl -n monitoring create secret generic grafana-admin \
#     --from-literal=admin-password='$(openssl rand -base64 18)'
# Image pinned: grafana/grafana:10.4.0.
# =============================================================================
apiVersion: apps/v1
kind: Deployment
metadata:
  name: grafana
  namespace: monitoring
  labels:
    app.kubernetes.io/name: grafana
    app.kubernetes.io/part-of: ai-software-factory
spec:
  replicas: 1
  selector:
    matchLabels:
      app.kubernetes.io/name: grafana
  strategy:
    type: Recreate
  template:
    metadata:
      labels:
        app.kubernetes.io/name: grafana
    spec:
      containers:
        - name: grafana
          image: grafana/grafana:10.4.0
          imagePullPolicy: IfNotPresent
          ports:
            - containerPort: 3000
              name: http
          env:
            - name: GF_SECURITY_ADMIN_USER
              value: admin
            - name: GF_SECURITY_ADMIN_PASSWORD__FILE
              value: /etc/grafana-secret/admin-password
            - name: GF_USERS_ALLOW_SIGN_UP
              value: "false"
            - name: GF_ANALYTICS_REPORTING_ENABLED
              value: "false"
            - name: GF_ANALYTICS_CHECK_FOR_UPDATES
              value: "false"
          volumeMounts:
            - name: datasources
              mountPath: /etc/grafana/provisioning/datasources
              readOnly: true
            - name: dashboards-provider
              mountPath: /etc/grafana/provisioning/dashboards
              readOnly: true
            - name: dashboards
              mountPath: /var/lib/grafana/dashboards
              readOnly: true
            - name: admin-secret
              mountPath: /etc/grafana-secret
              readOnly: true
            - name: data
              mountPath: /var/lib/grafana
          readinessProbe:
            httpGet:
              path: /api/health
              port: 3000
            initialDelaySeconds: 10
            periodSeconds: 10
          livenessProbe:
            httpGet:
              path: /api/health
              port: 3000
            initialDelaySeconds: 30
            periodSeconds: 15
          resources:
            requests:
              cpu: 100m
              memory: 256Mi
            limits:
              cpu: 500m
              memory: 1Gi
          securityContext:
            allowPrivilegeEscalation: false
            runAsNonRoot: true
            # the grafana image runs as `grafana` (uid 472) by default
            runAsUser: 472
            runAsGroup: 472
            seccompProfile:
              type: RuntimeDefault
      terminationGracePeriodSeconds: 20
      volumes:
        - name: datasources
          configMap:
            name: grafana-datasources  # hashed name substituted by kustomize
        - name: dashboards-provider
          configMap:
            name: grafana-dashboards-provider  # hashed name substituted by kustomize
        - name: dashboards
          configMap:
            name: grafana-dashboards  # hashed name substituted by kustomize
        - name: admin-secret
          secret:
            secretName: grafana-admin  # created out-of-band (see header)
        - name: data
          emptyDir: {}
---
apiVersion: v1
kind: Service
metadata:
  name: grafana
  namespace: monitoring
  labels:
    app.kubernetes.io/name: grafana
    app.kubernetes.io/part-of: ai-software-factory
spec:
  selector:
    app.kubernetes.io/name: grafana
  ports:
    - name: http
      port: 3000
      targetPort: 3000