title: Bash script to check if openshift/kubernetes pods are ready
body: <p>I am trying to create a shell script that will validate that certain pods are ready by checking the READY heading showing 1/1. I have tried two ways.</p>
  
  <p>1.</p>
  
  <pre><code>ready=$(oc get pods | awk '{print $2}' | tail -n +2) # prints 1/1 or 0/1 for each pod
  until [[ ${ready} == "1/1" ]]
  do
    echo "Waiting for pods to be ready."
    sleep 3
  done
  </code></pre>
  
  <p>Above script just keeps saying "Waiting for pods to be ready" even when the pods are ready and displaying 1/1 in the READY column. </p>
  
  <p>2.</p>
  
  <pre><code>while true ; do
    for i in 1 2 3; do
    ready=`oc get pods | awk '{print $2}' | tail -n +2 | head -n $i` 
  
    if [[ "${ready}" == "1/1" ]]; then
      echo "pods are up and running"
    else
      echo "waiting for pods to be ready"
    sleep 10
    break
    fi
    done
  done
  </code></pre>
  
  <p>Above script just continually prints waiting for pods to be ready and pods are up and running.</p>
  
  <p>Any help would be appreciated, I am starting with Bash and not quite sure what to do.</p>