Nginx Pod + PVC 조합 kafka connect plugin 관리

pv pvc 예시

apiVersion: v1
kind: PersistentVolume
metadata:
  name: plugin-repo-pv
spec:
  capacity:
    storage: 1Gi
  accessModes:
    - ReadOnlyMany
  hostPath:
    path: /home/ubuntu/plugin-repo # 실제 노드 디렉토리
---
apiVersion: v1
kind: PersistentVolumeClaim
metadata:
  name: plugin-repo-pvc
spec:
  accessModes:
    - ReadOnlyMany
  resources:
    requests:
      storage: 1Gi
  volumeName: plugin-repo-pv

nginx http 예

apiVersion: v1
kind: Pod
metadata:
  name: plugin-http
  labels:
    app: plugin-http
spec:
  containers:
    - name: nginx
      image: nginx:alpine
      ports:
        - containerPort: 80
      volumeMounts:
        - name: plugin-volume
          mountPath: /usr/share/nginx/html
          readOnly: true
  volumes:
    - name: plugin-volume
      persistentVolumeClaim:
        claimName: plugin-repo-pvc
---
apiVersion: v1
kind: Service
metadata:
  name: plugin-http
spec:
  selector:
    app: plugin-http
  ports:
    - port: 80
      targetPort: 80

 

initcontainer  예시

apiVersion: apps/v1
kind: Deployment
metadata:
  name: kafka-connect
spec:
  replicas: 1
  selector:
    matchLabels:
      app: kafka-connect
  template:
    metadata:
      labels:
        app: kafka-connect
    spec:
      volumes:
        - name: plugin-volume
          emptyDir: {}  # initContainer와 공유할 임시 볼륨

      initContainers:
        - name: init-download-plugin
          image: curlimages/curl:latest
          command: ["sh", "-c"]
          args:
            - >
              echo "⬇️ Downloading plugin..." &&
              curl -fSL http://plugin-http.default.svc.cluster.local/my-custom-plugin.jar -o /plugins/my-custom-plugin.jar &&
              echo "✅ Download complete"
          volumeMounts:
            - name: plugin-volume
              mountPath: /plugins

      containers:
        - name: kafka-connect
          image: confluentinc/cp-kafka-connect:latest
          env:
            - name: CONNECT_PLUGIN_PATH
              value: "/usr/share/java,/plugins"  # 다운로드된 경로 포함
            - name: CONNECT_BOOTSTRAP_SERVERS
              value: "your-kafka:9092"
            - name: CONNECT_REST_PORT
              value: "8083"
          ports:
            - containerPort: 8083
          volumeMounts:
            - name: plugin-volume
              mountPath: /plugins