Merge pull request #123 from topolvm/doc-update-user-manual

doc: fix "Stop the pie" user manual to remove finalizers for probe Pods

docs/user-manual.md

@@ -21,15 +21,26 @@ To stop the pie, follow these steps:
    $ NAMESPACE=<Set the namespace of the pie.>
    $ kubectl -n ${NAMESPACE} scale deployments --replicas=0 pie
    ```
-2. Wait for Pods to stop.
+2. Wait for the controller Pod to stop.
    ```console
    $ watch kubectl -n ${NAMESPACE} get pods
    ```
 3. Delete CronJobs (if exists).
    ```console
-   $ CRONJOBS_LIST=$(kubectl -n ${NAMESPACE} get cronjobs --no-headers=true | awk '{print $1}')
+   $ CRONJOBS_LIST=$(kubectl -n ${NAMESPACE} get cronjobs --no-headers=true | grep -E '^pie-probe-|^provision-probe-|^mount-probe-' | awk '{print $1}')
    $ [ -n "${CRONJOBS_LIST}" ] && kubectl -n ${NAMESPACE} delete cronjobs ${CRONJOBS_LIST}
    ```
+4. Remove the pie's finalizers for the Pods.
+   ```console
+   $ PODs=$(kubectl get pod -n ${NAMESPACE} -o json | jq -r '.items[] | .metadata.name' | grep -E '^pie-probe-|^provision-probe-|^mount-probe-')
+   $ for POD in ${PODs}; do
+        kubectl patch pod -n ${NAMESPACE} ${POD} --type='json' -p='[{"op": "remove", "path": "/metadata/finalizers"}]'
+   $ done
+   ```
+5. Wait for all the probe Pods to stop.
+   ```console
+   $ watch kubectl -n ${NAMESPACE} get pods
+   ```
 
 ### Start the pie