couchbase cluster in kubernetes

# kubernetes(k8s) 노드가 다음과 같이 구성되어 있다고 가정하고 설치한다.
1 maser
3 worker
1 ingress

# k8s couchbase 설치 참고
# https://kubernetes.io/blog/2016/08/create-couchbase-cluster-using-kubernetes/

# couchbase-cluster-master.yaml 내용
apiVersion: v1
kind: ReplicationController
metadata:
  name: couchbase-master-rc
spec:
  replicas: 1
  selector:
    app: couchbase-master-pod
  template:
    metadata:
      labels:
        app: couchbase-master-pod
    spec:
      containers:
      - name: couchbase-master
        image: couchbase:community-6.0.0
        env:
          - name: TYPE
            value: MASTER
        ports:
        - containerPort: 8091

---

apiVersion: v1
kind: Service
metadata:
  name: couchbase-master-service
  labels:
    app: couchbase-master-service
spec:
  ports:
    - port: 8091
  selector:
    app: couchbase-master-pod
  # type: LoadBalancer

# couchbase-cluster-worker.yaml 내용
apiVersion: v1
kind: ReplicationController
metadata:
  name: couchbase-worker-rc
spec:
  replicas: 3
  selector:
    app: couchbase-worker-pod
  template:
    metadata:
      labels:
        app: couchbase-worker-pod
    spec:
      containers:
      - name: couchbase-worker
        image: couchbase:community-6.0.0
        env:
          - name: TYPE
            value: "WORKER"
          - name: COUCHBASE_MASTER
            value: "couchbase-master-service"
          - name: AUTO_REBALANCE
            value: "false"
        ports:
        - containerPort: 8091

# couchbase-cluster-ingress.yaml 내용
apiVersion: extensions/v1beta1
kind: Ingress
metadata:
  name: couchbase-ingress
  namespace: default
  annotations:
    ingress.kubernetes.io/rewrite-target: /
spec:
  rules:
  - host: ysoftman-couchbase-server
    http:
      paths:
      - path: /
        backend:
          serviceName: couchbase-master-service
          servicePort: 8091

# couchbase 클러스터 master, worker, service, ingress 생성
kubectl apply -f couchbase-cluster-master.yaml
kubectl apply -f couchbase-cluster-worker.yaml
kubectl apply -f couchbase-cluster-ingress.yaml

# service, pod 확인
kubectl get all

# ingress 확인
kubectl get ingress

# ysoftman-couchbase-server 도메인을 만들면 ingress에서 처리해

# 외부에서 접속 할 수 있다.

http://ysoftman-couchbase-server

# couchbase 클러스터 구성
# worker pod 들의 ip 를 파악해서
kubectl get pod -o wide

# couchbase admin 페이지에서 서버 ip 를 추가한다.
http://ysoftman-couchbase-server -> servers -> add server 로 추가 -> rebalance