title: How to allocate redis-sentinel pods on different nodes?
body: <p>I'm running the redis chart (<a href="https://artifacthub.io/packages/helm/bitnami/redis/15.7.0" rel="nofollow noreferrer">https://artifacthub.io/packages/helm/bitnami/redis/15.7.0</a>) as a dependency of a custom chart. I enabled sentinel, then the pods are running two containers (redis and sentinel).
  I'm using the default values for the chart and I defined 4 replicas. The cluster have 10 nodes and I notice that three redis-sentinel's pods run on a single node and only one runs in another node:</p>
  <pre><code>myapp-redis-node-0    2/2    Running    8d     ip    k8s-appname-ctw9v
  myapp-redis-node-1    2/2    Running    34d    ip    k8s-appname-ctw9v
  myapp-redis-node-2    2/2    Running    34d    ip    k8s-appname-ctw9v
  myapp-redis-node-3    2/2    Running    34d    ip    k8s-appname-crm3k
  </code></pre>
  <p>This is the affinity section for the pod's:</p>
  <pre><code>spec:
    affinity:
      podAntiAffinity:
        preferredDuringSchedulingIgnoredDuringExecution:
        - podAffinityTerm:
            labelSelector:
              matchLabels:
                app.kubernetes.io/component: node
                app.kubernetes.io/instance: myapp
                app.kubernetes.io/name: redis
            namespaces:
            - test
            topologyKey: kubernetes.io/hostname
          weight: 1
  </code></pre>
  <p>How I can do to have each pod on diferent nodes?</p>
  <p>Thanks!</p>