title: My kubernetes pods keep crashing with "CrashLoopBackOff" but I can't find any log
body: <p>This is what I keep getting:</p>
  <pre><code>[root@centos-master ~]# kubectl get pods
  NAME               READY     STATUS             RESTARTS   AGE
  nfs-server-h6nw8   1/1       Running            0          1h
  nfs-web-07rxz      0/1       CrashLoopBackOff   8          16m
  nfs-web-fdr9h      0/1       CrashLoopBackOff   8          16m
  </code></pre>
  <p>Below is output from <code>describe pods</code>
  <a href="https://i.stack.imgur.com/qUtPV.png" rel="noreferrer">kubectl describe pods</a></p>
  <pre><code>Events:
    FirstSeen LastSeen    Count   From                SubobjectPath       Type        Reason      Message
    --------- --------    -----   ----                -------------       --------    ------      -------
    16m       16m     1   {default-scheduler }                    Normal      Scheduled   Successfully assigned nfs-web-fdr9h to centos-minion-2
    16m       16m     1   {kubelet centos-minion-2}   spec.containers{web}    Normal      Created     Created container with docker id 495fcbb06836
    16m       16m     1   {kubelet centos-minion-2}   spec.containers{web}    Normal      Started     Started container with docker id 495fcbb06836
    16m       16m     1   {kubelet centos-minion-2}   spec.containers{web}    Normal      Started     Started container with docker id d56f34ae4e8f
    16m       16m     1   {kubelet centos-minion-2}   spec.containers{web}    Normal      Created     Created container with docker id d56f34ae4e8f
    16m       16m     2   {kubelet centos-minion-2}               Warning     FailedSync  Error syncing pod, skipping: failed to &quot;StartContainer&quot; for &quot;web&quot; with CrashLoopBackOff: &quot;Back-off 10s restarting failed container=web pod=nfs-web-fdr9h_default(461c937d-d870-11e6-98de-005056040cc2)&quot;
  </code></pre>
  <p>I have two pods: <code>nfs-web-07rxz</code>, <code>nfs-web-fdr9h</code>, but if I do <code>kubectl logs nfs-web-07rxz</code> or with <code>-p</code> option I don't see any log in both pods.</p>
  <pre><code>[root@centos-master ~]# kubectl logs nfs-web-07rxz -p
  [root@centos-master ~]# kubectl logs nfs-web-07rxz
  </code></pre>
  <p>This is my replicationController yaml file:
  <a href="https://i.stack.imgur.com/kSbnv.png" rel="noreferrer">replicationController yaml file</a></p>
  <pre><code>apiVersion: v1 kind: ReplicationController metadata:   name: nfs-web spec:   replicas: 2   selector:
      role: web-frontend   template:
      metadata:
        labels:
          role: web-frontend
      spec:
        containers:
        - name: web
          image: eso-cmbu-docker.artifactory.eng.vmware.com/demo-container:demo-version3.0
          ports:
            - name: web
              containerPort: 80
          securityContext:
            privileged: true
  </code></pre>
  <p>My Docker image was made from this simple docker file:</p>
  <pre><code>FROM ubuntu
  RUN apt-get update
  RUN apt-get install -y nginx
  RUN apt-get install -y nfs-common
  </code></pre>
  <p>I am running my kubernetes cluster on CentOs-1611, kube version:</p>
  <pre><code>[root@centos-master ~]# kubectl version
  Client Version: version.Info{Major:&quot;1&quot;, Minor:&quot;3&quot;, GitVersion:&quot;v1.3.0&quot;, GitCommit:&quot;86dc49aa137175378ac7fba7751c3d3e7f18e5fc&quot;, GitTreeState:&quot;clean&quot;, BuildDate:&quot;2016-12-15T16:57:18Z&quot;, GoVersion:&quot;go1.6.3&quot;, Compiler:&quot;gc&quot;, Platform:&quot;linux/amd64&quot;}
  Server Version: version.Info{Major:&quot;1&quot;, Minor:&quot;3&quot;, GitVersion:&quot;v1.3.0&quot;, GitCommit:&quot;86dc49aa137175378ac7fba7751c3d3e7f18e5fc&quot;, GitTreeState:&quot;clean&quot;, BuildDate:&quot;2016-12-15T16:57:18Z&quot;, GoVersion:&quot;go1.6.3&quot;, Compiler:&quot;gc&quot;, Platform:&quot;linux/amd64&quot;}
  </code></pre>
  <p>If I run the docker image by <code>docker run</code> I was able to run the image without any issue, only through kubernetes I got the crash.</p>
  <p>Can someone help me out, how can I debug without seeing any log?</p>