title: Using kubespray to install kubernetes always fails, which looks like a bug
body: <p>I use kubespray（v2.11.0） install kubernetes（1.14.0）.I have three vm.(plan two master,one nodes) Due to network reasons, I used the internal image repo and storage server. then i exec “ansible-playbook -i inventory/mycluster/hosts.yaml --become --become-user=root cluster.yml” command. the first time,it failed on node2. because of the task: [kubernetes-apps/network_plugin/flannel : Flannel | Wait for flannel subnet.env file presence]. the error is timeout to wait. but I exec &quot;kubectl get nodes&quot; I get this:</p>
  <pre><code>root@node1:~/kubespray# kubectl get nodes
  NAME    STATUS   ROLES    AGE   VERSION
  node1   Ready    master   22h   v1.14.0
  node3   Ready    &lt;none&gt;   69m   v1.14.0
  </code></pre>
  <p>So i think may be i should copy the first master 's file to the second master node.</p>
  <pre><code>scp node1:/run/flannel/subnet.env node2:/run/flannel
  </code></pre>
  <p>then i exec the command &quot;ansible-playbook -i inventory/mycluster/hosts.yaml --become --become-user=root cluster.yml&quot; again. this time all the task are ok. no fail. but I still can't get the node2 in kubernetes. which you can see that below.</p>
  <pre><code>TASK [kubernetes/preinstall : run growpart] *******************************************************************************************************************************
  Sunday 11 October 2020  22:20:34 -0400 (0:00:00.085)       0:05:19.550 ******** 
  
  TASK [kubernetes/preinstall : run xfs_growfs] *****************************************************************************************************************************
  Sunday 11 October 2020  22:20:34 -0400 (0:00:00.084)       0:05:19.635 ******** 
  
  PLAY RECAP ****************************************************************************************************************************************************************
  localhost                  : ok=1    changed=0    unreachable=0    failed=0   
  node1                      : ok=533  changed=24   unreachable=0    failed=0   
  node2                      : ok=608  changed=33   unreachable=0    failed=0   
  node3                      : ok=454  changed=20   unreachable=0    failed=0   
  
  Sunday 11 October 2020  22:20:34 -0400 (0:00:00.069)       0:05:19.704 ******** 
  =============================================================================== 
  kubernetes/client : Generate admin kubeconfig with external api endpoint ------------------------------------------------------------------------------------------ 10.37s
  download : download_container | Download image if required --------------------------------------------------------------------------------------------------------- 7.51s
  kubernetes-apps/network_plugin/flannel : Flannel | Wait for flannel subnet.env file presence ----------------------------------------------------------------------- 5.19s
  etcd : wait for etcd up -------------------------------------------------------------------------------------------------------------------------------------------- 4.46s
  container-engine/docker : ensure docker packages are installed ----------------------------------------------------------------------------------------------------- 4.13s
  kubernetes-apps/ansible : Kubernetes Apps | Start Resources -------------------------------------------------------------------------------------------------------- 3.47s
  kubernetes-apps/ingress_controller/ingress_nginx : NGINX Ingress Controller | Apply manifests ---------------------------------------------------------------------- 2.48s
  kubernetes-apps/ansible : Kubernetes Apps | Lay Down CoreDNS Template ---------------------------------------------------------------------------------------------- 2.39s
  kubernetes/master : kubeadm | write out kubeadm certs -------------------------------------------------------------------------------------------------------------- 2.29s
  etcd : reload etcd ------------------------------------------------------------------------------------------------------------------------------------------------- 2.04s
  kubernetes-apps/ingress_controller/ingress_nginx : NGINX Ingress Controller | Create manifests --------------------------------------------------------------------- 2.00s
  download : download | Download files / images ---------------------------------------------------------------------------------------------------------------------- 1.71s
  bootstrap-os : Fetch /etc/os-release ------------------------------------------------------------------------------------------------------------------------------- 1.52s
  kubernetes/master : slurp kubeadm certs ---------------------------------------------------------------------------------------------------------------------------- 1.44s
  bootstrap-os : Install dbus for the hostname module ---------------------------------------------------------------------------------------------------------------- 1.11s
  kubernetes/master : Backup old certs and keys ---------------------------------------------------------------------------------------------------------------------- 1.08s
  download : download | Download files / images ---------------------------------------------------------------------------------------------------------------------- 1.04s
  download : download_file | Download item --------------------------------------------------------------------------------------------------------------------------- 0.98s
  download : download | Sync files / images from ansible host to nodes ----------------------------------------------------------------------------------------------- 0.95s
  container-engine/docker : Ensure old versions of Docker are not installed. | Debian -------------------------------------------------------------------------------- 0.93s
  root@node1:~/kubespray# kc get nodes
  The program 'kc' is currently not installed. You can install it by typing:
  apt install kimwitu
  root@node1:~/kubespray# kubectl get nodes
  NAME    STATUS   ROLES    AGE   VERSION
  node1   Ready    master   22h   v1.14.0
  node3   Ready    &lt;none&gt;   69m   v1.14.0
  root@node1:~/kubespray#
  </code></pre>
  <p>someone tell me how to fix and debug this problem.</p>