title: Pods are not starting. NetworkPlugin cni failed to set up pod
body: <p>K8 Version:</p>
  
  <pre><code>Client Version: version.Info{Major:"1", Minor:"6", GitVersion:"v1.6.4", GitCommit:"d6f433224538d4f9ca2f7ae19b252e6fcb66a3ae", GitTreeState:"clean", BuildDate:"2017-05-19T18:44:27Z", GoVersion:"go1.7.5", Compiler:"gc", Platform:"linux/amd64"}
  Server Version: version.Info{Major:"1", Minor:"6", GitVersion:"v1.6.4", GitCommit:"d6f433224538d4f9ca2f7ae19b252e6fcb66a3ae", GitTreeState:"clean", BuildDate:"2017-05-19T18:33:17Z", GoVersion:"go1.7.5", Compiler:"gc", Platform:"linux/amd64"}
  </code></pre>
  
  <p>I tried to launch spinnaker pods(<a href="https://github.com/spinnaker/spinnaker/tree/master/experimental/kubernetes/simple/svcs" rel="noreferrer">yaml files here</a>). I choose <code>Flannel</code>(<code>kubectl apply -f kube-flannel.yml</code>) while installing K8. Then I see the pods are not starting, it is struck in "ContainerCreating" status. I <code>kubectl describe</code> a pod, showing  <code>NetworkPlugin cni failed to set up pod</code></p>
  
  <pre><code>veeru@ubuntu:/opt/spinnaker/experimental/kubernetes/simple$ kubectl describe pod data-redis-master-v000-38j80 --namespace=spinnaker
  Name:       data-redis-master-v000-38j80
  Namespace:  spinnaker
  Node:       ubuntu/192.168.6.136
  Start Time: Thu, 01 Jun 2017 02:54:14 -0700
  Labels:     load-balancer-data-redis-server=true
          replication-controller=data-redis-master-v000
  Annotations:    kubernetes.io/created-by={"kind":"SerializedReference","apiVersion":"v1","reference":{"kind":"ReplicaSet","namespace":"spinnaker","name":"data-redis-master-v000","uid":"43d4a44c-46b0-11e7-b0e1-000c29b...
  Status:     Pending
  IP:     
  Controllers:    ReplicaSet/data-redis-master-v000
  Containers:
    redis-master:
      Container ID:   
      Image:      gcr.io/kubernetes-spinnaker/redis-cluster:v2
      Image ID:       
      Port:       6379/TCP
      State:      Waiting
        Reason:       ContainerCreating
      Ready:      False
      Restart Count:  0
      Limits:
        cpu:  100m
      Requests:
        cpu:  100m
      Environment:
        MASTER:   true
      Mounts:
        /redis-master-data from data (rw)
        /var/run/secrets/kubernetes.io/serviceaccount from default-token-71p4q (ro)
  Conditions:
    Type      Status
    Initialized   True 
    Ready     False 
    PodScheduled  True 
  Volumes:
    data:
      Type:   EmptyDir (a temporary directory that shares a pod's lifetime)
      Medium: 
    default-token-71p4q:
      Type:   Secret (a volume populated by a Secret)
      SecretName: default-token-71p4q
      Optional:   false
  QoS Class:  Burstable
  Node-Selectors: &lt;none&gt;
  Tolerations:    node.alpha.kubernetes.io/notReady=:Exists:NoExecute for 300s
          node.alpha.kubernetes.io/unreachable=:Exists:NoExecute for 300s
  Events:
    FirstSeen LastSeen    Count   From            SubObjectPath   Type        Reason      Message
    --------- --------    -----   ----            -------------   --------    ------      -------
    45m       45m     1   default-scheduler           Normal      Scheduled   Successfully assigned data-redis-master-v000-38j80 to ubuntu
    43m       43m     1   kubelet, ubuntu             Warning     FailedSync  Error syncing pod, skipping: failed to "KillPodSandbox" for "447d302c-46b0-11e7-b0e1-000c29b1270f" with KillPodSandboxError: "rpc error: code = 2 desc = NetworkPlugin cni failed to teardown pod \"_\" network: CNI failed to retrieve network namespace path: Error: No such container: 8265d80732e7b73ebf8f1493d40403021064b61436c4c559b41330e7592fd47f"
  
    43m   43m 1   kubelet, ubuntu     Warning FailedSync  Error syncing pod, skipping: rpc error: code = 2 desc = Error: No such container: b972862d763e621e026728073deb9a304748c4ec4522982db0a168663ab59d36
    42m   42m 1   kubelet, ubuntu     Warning FailedSync  Error syncing pod, skipping: failed to "KillPodSandbox" for "447d302c-46b0-11e7-b0e1-000c29b1270f" with KillPodSandboxError: "rpc error: code = 2 desc = NetworkPlugin cni failed to teardown pod \"_\" network: CNI failed to retrieve network namespace path: Error: No such container: 72b39083a3a81c0da1d4b7fa65b5d6450b62a3562a05452c27b185bc33197327"
  
    41m   41m 1   kubelet, ubuntu     Warning FailedSync  Error syncing pod, skipping: failed to "KillPodSandbox" for "447d302c-46b0-11e7-b0e1-000c29b1270f" with KillPodSandboxError: "rpc error: code = 2 desc = NetworkPlugin cni failed to teardown pod \"_\" network: CNI failed to retrieve network namespace path: Error: No such container: d315511bfa9f6f09d7ef4cd277bde44e4885291ea566e3089460356c1ed34413"
  
    40m   40m 1   kubelet, ubuntu     Warning FailedSync  Error syncing pod, skipping: failed to "KillPodSandbox" for "447d302c-46b0-11e7-b0e1-000c29b1270f" with KillPodSandboxError: "rpc error: code = 2 desc = NetworkPlugin cni failed to teardown pod \"_\" network: CNI failed to retrieve network namespace path: Error: No such container: a03d776d2d7c5c4ae9c1ec31681b0b6e40759326a452916cff0e60c4d4e2c954"
  
    40m   40m 1   kubelet, ubuntu     Warning FailedSync  Error syncing pod, skipping: failed to "KillPodSandbox" for "447d302c-46b0-11e7-b0e1-000c29b1270f" with KillPodSandboxError: "rpc error: code = 2 desc = NetworkPlugin cni failed to teardown pod \"_\" network: CNI failed to retrieve network namespace path: Error: No such container: acf30a4aacda0c53bdbb8bc2d416704720bd1b623c43874052b4029f15950052"
  
    39m   39m 1   kubelet, ubuntu     Warning FailedSync  Error syncing pod, skipping: failed to "KillPodSandbox" for "447d302c-46b0-11e7-b0e1-000c29b1270f" with KillPodSandboxError: "rpc error: code = 2 desc = NetworkPlugin cni failed to teardown pod \"_\" network: CNI failed to retrieve network namespace path: Error: No such container: ea49f5f9428d585be7138f4ebce54f713eef549b16104a3d7aa728175b6ebc2a"
  
    38m   38m 1   kubelet, ubuntu     Warning FailedSync  Error syncing pod, skipping: failed to "KillPodSandbox" for "447d302c-46b0-11e7-b0e1-000c29b1270f" with KillPodSandboxError: "rpc error: code = 2 desc = NetworkPlugin cni failed to teardown pod \"_\" network: CNI failed to retrieve network namespace path: Error: No such container: ec2483435b4b22576c9bd7bffac5d67d53893c189c0cf26aca1ae6af79d09914"
  
    38m   1m  39  kubelet, ubuntu     Warning FailedSync  (events with common reason combined)
    45m   1s  448 kubelet, ubuntu     Normal  SandboxChanged  Pod sandbox changed, it will be killed and re-created.
    45m   0s  412 kubelet, ubuntu     Warning FailedSync  Error syncing pod, skipping: failed to "CreatePodSandbox" for "data-redis-master-v000-38j80_spinnaker(447d302c-46b0-11e7-b0e1-000c29b1270f)" with CreatePodSandboxError: "CreatePodSandbox for pod \"data-redis-master-v000-38j80_spinnaker(447d302c-46b0-11e7-b0e1-000c29b1270f)\" failed: rpc error: code = 2 desc = NetworkPlugin cni failed to set up pod \"data-redis-master-v000-38j80_spinnaker\" network: open /run/flannel/subnet.env: no such file or directory"
  </code></pre>
  
  <p>How can I resolve above issue?  </p>
  
  <p><strong>UPDATE-1</strong></p>
  
  <p>I have reinitialized K8 with <code>kubeadm init --pod-network-cidr=10.244.0.0/16</code> and deployed sample <a href="http://containertutorials.com/get_started_kubernetes/k8s_example.html" rel="noreferrer">nginx pod</a>. Still getting same error</p>
  
  <pre><code>-----------------OUTPUT REMOVED------------------------------- 
  Events:
    FirstSeen LastSeen    Count   From            SubObjectPath   Type        Reason      Message
    --------- --------    -----   ----            -------------   --------    ------      -------
    3m        3m      1   default-scheduler           Normal      Scheduled   Successfully assigned nginx-622qj to ubuntu
    1m        1m      1   kubelet, ubuntu             Warning     FailedSync  Error syncing pod, skipping: failed to "KillPodSandbox" for "0728fece-46fe-11e7-ae5d-000c29b1270f" with KillPodSandboxError: "rpc error: code = 2 desc = NetworkPlugin cni failed to teardown pod \"_\" network: CNI failed to retrieve network namespace path: Error: No such container: 38250afd765f0108aeff6e31bbe5a642a60db99b97cbbf15711f810cbe8f3829"
  
    24s   24s 1   kubelet, ubuntu     Warning FailedSync  Error syncing pod, skipping: failed to "KillPodSandbox" for "0728fece-46fe-11e7-ae5d-000c29b1270f" with KillPodSandboxError: "rpc error: code = 2 desc = NetworkPlugin cni failed to teardown pod \"_\" network: CNI failed to retrieve network namespace path: Error: No such container: 3bebcef02cb5f6645a65dcf06b2730144080f9d3c4fb18267feca5c5ce21031c"
  
    2m    9s  33  kubelet, ubuntu     Normal  SandboxChanged  Pod sandbox changed, it will be killed and re-created.
    3m    7s  32  kubelet, ubuntu     Warning FailedSync  Error syncing pod, skipping: failed to "CreatePodSandbox" for "nginx-622qj_default(0728fece-46fe-11e7-ae5d-000c29b1270f)" with CreatePodSandboxError: "CreatePodSandbox for pod \"nginx-622qj_default(0728fece-46fe-11e7-ae5d-000c29b1270f)\" failed: rpc error: code = 2 desc = NetworkPlugin cni failed to set up pod \"nginx-622qj_default\" network: open /run/flannel/subnet.env: no such file or directory"
  </code></pre>