Liberty in OpenShift Get Heapdump Recipe

1. Ensure you're logged in with oc
2. Find the relevant pod(s):

   $ oc get pods --namespace $NAMESPACE
   NAME                            READY   STATUS    RESTARTS   AGE
   mypod-7d57d6599f-tq7vt          1/1     Running   0          12m

3. Remote into the pod (if it has more than one container, specify the container with -c $CONTAINER):

   $ oc rsh --namespace $NAMESPACE -t $PODNAME
   sh-4.4$ 

4. Execute server javadump with the heapdump option. The $WLP path is usually either /opt/ibm/wlp or /opt/ol/wlp depending on whether it's WebSphere Liberty or OpenLiberty, respectively:

   $WLP/bin/server javadump --include=heap

5. Exit the remote shell:

   exit

6. Download the output directory that has the heapdump (replace $WLP as in step 4):

   oc cp --namespace $NAMESPACE $PODNAME:$WLP/output/defaultServer libertyoutput

7. Zip and upload the libertyoutput directory

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