title: Redis Pods are not able to join Redis cluster
body: <p>I want to create redis cluster of 6 nodes in kubernetes. I am running kubernetes using <strong>Minikube</strong>. </p>
  
  <p>Below is my implementation for creating the  6 node cluster.</p>
  
  <pre><code>kind: StatefulSet
  metadata:
    generation: 1
    labels:
      app: demo-app
    name: demo-app
    namespace: default
  spec:
    podManagementPolicy: OrderedReady
    replicas: 6
    revisionHistoryLimit: 10
    selector:
      matchLabels:
        app: demo-app
    serviceName: ""
    template:
      metadata:
        creationTimestamp: null
        labels:
          app: demo-app
      spec:
        containers:
        - command:
          - redis-server
          - --port 6379
          - --cluster-enabled yes
          - --cluster-node-timeout 5000
          - --appendonly yes
          - --appendfilename appendonly-6379.aof
          image: redis:latest
          imagePullPolicy: Always
          name: demo-app
          resources: {}
          terminationMessagePath: /dev/termination-log
          terminationMessagePolicy: File
          volumeMounts:
           - name: redis-pvc
             mountPath: /var
        - image: nginx:1.12
          imagePullPolicy: IfNotPresent
          name: redis-exporter
          resources: {}
          terminationMessagePath: /dev/termination-log
          terminationMessagePolicy: File
        dnsPolicy: ClusterFirst
        restartPolicy: Always
        schedulerName: default-scheduler
        securityContext: {}
        terminationGracePeriodSeconds: 30
    updateStrategy:
      rollingUpdate:
        partition: 0
      type: RollingUpdate
  
    volumeClaimTemplates:
      - metadata: 
          name: redis-pvc
        spec: 
            accessModes: 
             - ReadWriteOnce
            resources:
               requests:
                   storage: 1Gi
  </code></pre>
  
  <p>After creation of stateful sets I am executing redis create cluster command from inside one of pods. </p>
  
  <pre><code> redis-cli --cluster create 172.17.0.4:6379 172.17.0.5:6379  172.17.0.6:6379  172.17.0.7:6379  172.17.0.8:6379  172.17.0.9:6379 --cluster-replicas 1
  </code></pre>
  
  <p>These all are the ips of the pods.With this I am able to Start my cluster. But once I manually delete a single pod using </p>
  
  <pre><code>kubernetes delete pod &lt;podname&gt; 
  </code></pre>
  
  <p>For example deleting the redis node with IP address: 172.17.0.6:6379 which was supposed to be master.After deleting the redis cluster state is:</p>
  
  <pre><code>127.0.0.1:6379&gt; cluster nodes
  1c8c238c58d99181018b37af44c2ebfe049e4564 172.17.0.9:6379@16379 slave 4b75e95772887e76eb3d0c9518d13def097ce5fd 0 1579496695000 6 connected
  96e6be88d29d847aed9111410cb0f790db068d0e 172.17.0.8:6379@16379 slave 0db23edf54bb57f7db1e2c9eb182ce956229d16e 0 1579496696596 5 connected
  c8be98b16a8fa7c1c9c2d43109abafefc803d345 172.17.0.7:6379@16379 master - 0 1579496695991 7 connected 10923-16383
  0db23edf54bb57f7db1e2c9eb182ce956229d16e 172.17.0.4:6379@16379 myself,master - 0 1579496694000 1 connected 0-5460
  4daae1051e6a72f2ffc0675649e9e2dad9430fc4 172.17.0.6:6379@16379 master,fail - 1579496680825 1579496679000 3 disconnected
  4b75e95772887e76eb3d0c9518d13def097ce5fd 172.17.0.5:6379@16379 master - 0 1579496695000 2 connected 5461-10922
  </code></pre>
  
  <p>and after sometime it changes to:</p>
  
  <pre><code>127.0.0.1:6379&gt; cluster nodes
  1c8c238c58d99181018b37af44c2ebfe049e4564 172.17.0.9:6379@16379 slave 4b75e95772887e76eb3d0c9518d13def097ce5fd 0 1579496697529 6 connected
  96e6be88d29d847aed9111410cb0f790db068d0e 172.17.0.8:6379@16379 slave 0db23edf54bb57f7db1e2c9eb182ce956229d16e 0 1579496696596 5 connected
  c8be98b16a8fa7c1c9c2d43109abafefc803d345 172.17.0.7:6379@16379 master - 0 1579496698031 7 connected 10923-16383
  0db23edf54bb57f7db1e2c9eb182ce956229d16e 172.17.0.4:6379@16379 myself,master - 0 1579496697000 1 connected 0-5460
  4daae1051e6a72f2ffc0675649e9e2dad9430fc4 :0@0 master,fail,noaddr - 1579496680825 1579496679000 3 disconnected
  4b75e95772887e76eb3d0c9518d13def097ce5fd 172.17.0.5:6379@16379 master - 0 1579496697028 2 connected 5461-10922
  </code></pre>
  
  <p>As redis cluster provide automatic failover but the pod's redis is unable to join automatically to the cluster? </p>
  
  <p>Or Should I join that pod manually into the cluster?</p>