---
# Role: flink
# Template: flink-deployment.yml.j2
# Déploiement d'un cluster Apache Flink via FlinkKubernetesOperator
# Variables:
#   {{ flink_namespace }}  - Namespace Kubernetes (défaut: flink)
#   {{ flink_replicas }}  - Nombre de TaskManagers (défaut: 2)

---
apiVersion: v1
kind: Namespace
metadata:
  name: {{ flink_namespace | default('flink') }}
  labels:
    app: flink
    version: "1.18"

---
apiVersion: flink.apache.org/v1beta1
kind: FlinkDeployment
metadata:
  name: flink-cluster
  namespace: {{ flink_namespace | default('flink') }}
  labels:
    app: flink
    version: "1.18"
spec:
  image: flink:1.18-scala_2.12
  flinkVersion: v1_18
  imagePullPolicy: IfNotPresent

  # --- JobManager ---
  jobmanager:
    resource:
      memory: "2048m"
      cpu: 1
    replicas: 1

  # --- TaskManager ---
  taskmanager:
    resource:
      memory: "4096m"
      cpu: 2
    replicas: {{ flink_replicas | default(2) }}

  # --- Configuration Flink ---
  flinkConfiguration:
    taskmanager.numberOfTaskSlots: "2"
    state.backend: rocksdb
    state.checkpoints.dir: s3://flink-checkpoints
    state.savepoints.dir: s3://flink-savepoints
    high-availability: zookeeper
    high-availability.zookeeper.quorum: zk-cs.{{ flink_namespace | default('flink') }}.svc.cluster.local:2181
    web.upload.dir: /tmp/flink-web-upload

---
apiVersion: v1
kind: Service
metadata:
  name: flink-jobmanager
  namespace: {{ flink_namespace | default('flink') }}
  labels:
    app: flink
    component: jobmanager
    version: "1.18"
spec:
  type: ClusterIP
  selector:
    app: flink
    component: jobmanager
  ports:
    - name: rpc
      port: 6123
      targetPort: 6123
      protocol: TCP
    - name: blob
      port: 6124
      targetPort: 6124
      protocol: TCP
    - name: webui
      port: 8081
      targetPort: 8081
      protocol: TCP

---
apiVersion: v1
kind: Service
metadata:
  name: flink-taskmanager
  namespace: {{ flink_namespace | default('flink') }}
  labels:
    app: flink
    component: taskmanager
    version: "1.18"
spec:
  type: ClusterIP
  selector:
    app: flink
    component: taskmanager
  ports:
    - name: rpc
      port: 6122
      targetPort: 6122
      protocol: TCP
    - name: data
      port: 6125
      targetPort: 6125
      protocol: TCP

---
apiVersion: networking.k8s.io/v1
kind: Ingress
metadata:
  name: flink-webui
  namespace: {{ flink_namespace | default('flink') }}
  labels:
    app: flink
    component: webui
    version: "1.18"
  annotations:
    nginx.ingress.kubernetes.io/rewrite-target: /
    nginx.ingress.kubernetes.io/ssl-redirect: "true"
    cert-manager.io/cluster-issuer: "letsencrypt-prod"
spec:
  ingressClassName: nginx
  tls:
    - hosts:
        - flink.digitribe.fr
      secretName: flink-tls
  rules:
    - host: flink.digitribe.fr
      http:
        paths:
          - path: /
            pathType: Prefix
            backend:
              service:
                name: flink-jobmanager
                port:
                  number: 8081