Update util.sh

When we deploy the kubernetes using Ubuntu's script. 1. First we set the roles "ai i i" and NUM_MINIONS=3, it runs as expected. 2. Then we change the roles to "a i i" and NUM_MINIONS=2, we found it will not run successfully. It's because there are history files left on the previous deployment. This commit will delete the files when stop the cluster.

Update util.sh
bb28684f · Jian Huang · a101aa17 · bb28684f
Commit bb28684f authored Jul 31, 2015 by Jian Huang
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util.sh cluster/ubuntu/util.sh +2 -0

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--- a/cluster/ubuntu/util.sh
+++ b/cluster/ubuntu/util.sh
@@ -437,6 +437,8 @@ function kube-down {
    {
      echo "Cleaning on node ${i#*@}"
      ssh -t $i 'pgrep etcd && sudo -p "[sudo] password for cleaning etcd data: " service etcd stop && sudo rm -rf /infra*'
+      # Delete the files in order to generate a clean environment, so you can change each node's role at next deployment.
+      ssh -t $i 'rm -f /opt/bin/kube* /etc/init/kube* /etc/init.d/kube* /etc/default/kube*; rm -rf ~/kube'
    }
  done
  wait