title: unable to run a container with volume on glusterfs
body: <p>i've a kubernetes cluster with a master node and 3 minions, i've already a glusterfs cluster, every node of kubernetes cluster have glusterfs-client installed and working.
  i'm trying to run a pod ( a simple mysql ) mounting /var/lib/mysql on glusterfs but i see:</p>
  
  <pre><code>Image: mysql:5.6 is ready, container is creating 
  </code></pre>
  
  <p>i run: 
      kubectl get event 
  i see:</p>
  
  <pre><code>Thu, 18 Feb 2016 10:08:01 +0100   Thu, 18 Feb 2016 10:08:01 +0100   1         mysql-9ym10         Pod                                 scheduled          {scheduler }                Successfully assigned mysql-9ym10 to nodeXX
  Thu, 18 Feb 2016 10:08:01 +0100   Thu, 18 Feb 2016 10:08:01 +0100   1         mysql               ReplicationController               successfulCreate   {replication-controller }   Created pod: mysql-9ym10
  Thu, 18 Feb 2016 10:08:02 +0100   Thu, 18 Feb 2016 10:08:12 +0100   2         mysql-9ym10         Pod                                 failedMount        {kubelet nodeXX}    Unable to mount volumes for pod "mysql-9ym10_default": exit status 1
  Thu, 18 Feb 2016 10:08:02 +0100   Thu, 18 Feb 2016 10:08:12 +0100   2         mysql-9ym10         Pod                                 failedSync         {kubelet nodeXX}    Error syncing pod, skipping: exit status 1
  </code></pre>
  
  <p>if i run 
      kubectl describe pod mysql-9ym10 
  i see:</p>
  
  <pre><code>Name:                           mysql-9ym10
  Namespace:                      default
  Image(s):                       mysql:5.6
  Node:                           nodeXX/nodeXX
  Labels:                         app=mysql
  Status:                         Pending
  Reason:
  Message:
  IP:
  Replication Controllers:        mysql (1/1 replicas created)
  Containers:
    mysql:
      Image:              mysql:5.6
      State:              Waiting
        Reason:           Image: mysql:5.6 is ready, container is creating
      Ready:              False
      Restart Count:      0
  Conditions:
    Type          Status
    Ready         False 
  Events:
    FirstSeen                             LastSeen                        Count   From                            SubobjectPath   Reason          Message
    Thu, 18 Feb 2016 10:08:01 +0100       Thu, 18 Feb 2016 10:08:01 +0100 1       {scheduler }                                    scheduled       Successfully assigned mysql-9ym10 to nodeXX
    Thu, 18 Feb 2016 10:08:02 +0100       Thu, 18 Feb 2016 10:10:22 +0100 15      {kubelet nodeXX}                        failedMount     Unable to mount volumes for pod "mysql-9ym10_default": exit status 1
    Thu, 18 Feb 2016 10:08:02 +0100       Thu, 18 Feb 2016 10:10:22 +0100 15      {kubelet nodeXX}                        failedSync      Error syncing pod, skipping: exit status 1
  </code></pre>
  
  <p>this is the yaml file for container:</p>
  
  <pre><code>apiVersion: v1
  kind: ReplicationController
  metadata:
    name: mysql
  spec:
    replicas: 1
    selector:
      app: mysql
    template:
      metadata:
        name: mysql
        labels:
          app: mysql
      spec:
        containers:
        - name: mysql
          image: mysql:5.6
          ports:
          - containerPort: 3306
          env:
            - name: MYSQL_ROOT_PASSWORD
              value: password
          volumeMounts:
            - mountPath: /var/lib/mysql
              name: glusterfsvol
        volumes:
        - glusterfs:
            endpoints: glusterfs-cluster
            path: glustervolume
            readOnly: false
          name: glusterfsvol
  </code></pre>