Docker 在kubernetes部署couchbase时出现连接拒绝错误{未能连接到127.0.0.1端口8091:连接被拒绝}

我使用以下yaml文件在kubernetes中部署couchbase

主机：

apiVersion: v1  
kind: ReplicationController  
metadata:  
  name: couchbase-master-rc
spec:  
  replicas: 1  
  selector:  
    app: master-pod  
  template:  
    metadata:  
      labels:  
        app: master-pod  
    spec:  
      containers:  
      - name: couchbase-master  
        image: arungupta/couchbase:k8s 
        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: master-pod  
  type: LoadBalancer

apiVersion: v1  
kind: ReplicationController  
metadata:  
  name: couchbase-worker-rc  
spec:  
  replicas: 1  
  selector:  
    app: couchbase-worker-pod  
  template:  
    metadata:  
      labels:  
        app: couchbase-worker-pod  
    spec:  
      containers:  
      - name: couchbase-worker  
        image: arungupta/couchbase:k8s  
        env:  
          - name: TYPE  
            value: "WORKER"  
          - name: COUCHBASE_MASTER  
            value: "couchbase-master-service"  
          - name: AUTO_REBALANCE  
            value: "false"  
        ports:  
        - containerPort: 8091

apiVersion: extensions/v1beta1
kind: Ingress
metadata:
  name: couchbase
  annotations:
    nginx.ingress.kubernetes.io/rewrite-target: /
spec:
  rules:
  - host: xxx.com
    http:
      paths:
      - path: /
        backend:
          serviceName: couchbase-master-service
          servicePort: 8091

工人：

apiVersion: v1  
kind: ReplicationController  
metadata:  
  name: couchbase-master-rc
spec:  
  replicas: 1  
  selector:  
    app: master-pod  
  template:  
    metadata:  
      labels:  
        app: master-pod  
    spec:  
      containers:  
      - name: couchbase-master  
        image: arungupta/couchbase:k8s 
        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: master-pod  
  type: LoadBalancer

apiVersion: v1  
kind: ReplicationController  
metadata:  
  name: couchbase-worker-rc  
spec:  
  replicas: 1  
  selector:  
    app: couchbase-worker-pod  
  template:  
    metadata:  
      labels:  
        app: couchbase-worker-pod  
    spec:  
      containers:  
      - name: couchbase-worker  
        image: arungupta/couchbase:k8s  
        env:  
          - name: TYPE  
            value: "WORKER"  
          - name: COUCHBASE_MASTER  
            value: "couchbase-master-service"  
          - name: AUTO_REBALANCE  
            value: "false"  
        ports:  
        - containerPort: 8091

apiVersion: extensions/v1beta1
kind: Ingress
metadata:
  name: couchbase
  annotations:
    nginx.ingress.kubernetes.io/rewrite-target: /
spec:
  rules:
  - host: xxx.com
    http:
      paths:
      - path: /
        backend:
          serviceName: couchbase-master-service
          servicePort: 8091

入口：

apiVersion: v1  
kind: ReplicationController  
metadata:  
  name: couchbase-master-rc
spec:  
  replicas: 1  
  selector:  
    app: master-pod  
  template:  
    metadata:  
      labels:  
        app: master-pod  
    spec:  
      containers:  
      - name: couchbase-master  
        image: arungupta/couchbase:k8s 
        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: master-pod  
  type: LoadBalancer

apiVersion: v1  
kind: ReplicationController  
metadata:  
  name: couchbase-worker-rc  
spec:  
  replicas: 1  
  selector:  
    app: couchbase-worker-pod  
  template:  
    metadata:  
      labels:  
        app: couchbase-worker-pod  
    spec:  
      containers:  
      - name: couchbase-worker  
        image: arungupta/couchbase:k8s  
        env:  
          - name: TYPE  
            value: "WORKER"  
          - name: COUCHBASE_MASTER  
            value: "couchbase-master-service"  
          - name: AUTO_REBALANCE  
            value: "false"  
        ports:  
        - containerPort: 8091

apiVersion: extensions/v1beta1
kind: Ingress
metadata:
  name: couchbase
  annotations:
    nginx.ingress.kubernetes.io/rewrite-target: /
spec:
  rules:
  - host: xxx.com
    http:
      paths:
      - path: /
        backend:
          serviceName: couchbase-master-service
          servicePort: 8091

吊舱开始运行，乍一看似乎没有什么问题。但是当我试图点击HostUrl时，它给了我一个坏的网关。当我查看主吊舱的日志时，它显示连接在127.0.0.1:8091被拒绝。我试图执行pod并手动应用entrypoint.sh中的curl语句，但它也给了我错误“无法连接到127.0.0.1端口8091：连接被拒绝”。

---

我发现主映像正在使用

我运行了这个容器映像，看起来curl失败了，因为couchbase服务器没有足够的时间启动和打开8091端口

你能做的最简单的事情就是将睡眠设置为更高的值，但睡眠通常不是最好的选择。（事实上，这张图片充满了糟糕的做法）

更好的方法是使用以下等待端口8091打开的线路替换睡眠：

while ! nc -z localhost 8091; do   
  sleep 1
done

---

我建议不要使用arungupta/couchbase:k8s，这是一个可能已经过时的非官方图像。另外，我建议对kubernetes部署使用Couchbase操作符：实际上我没有对集群的完全访问权。因此，我不打算应用集群角色和集群角色绑定。所以我不能和接线员一起工作。没有操作员，我只是在网上找到了这个yaml文件作为一个例子。实际上，我是新来的。所以我有一个疑问。我认为entrypoint.sh在图像中。那么我怎样才能更新其中的内容呢？看起来这些都是你需要的文件。你只需要构建它并推送到docker repo。