Delay elasticsearch-data termination

This update adds a preStop lifecycle script to be run on
elasticsearch-data pods when they are also functioning
as master capable, as will be the case for AIO-DX without
worker hosts.  The script will check if the data node is
master capable, and if so sleep for a number of seconds
configured by an environment variable, defaulted to 100.

The elasticsearch-data termination delay is desired when
the single master capable only pod is on the standby
controller and that controller host is locked.  The delay
in termination will leave the 2 elasticsearch-data pods up
to maintain master quorum until the elasticsearch-master
pod has migrated over to the active controller.

This update also removes the check for green cluster
health status in the elasticsearch readiness probe.

Story: 2005733
Task: 37321

Change-Id: I6991ffff4e94342f9190896e92790cdaa8de9dea
Signed-off-by: Kevin Smith <kevin.smith@windriver.com>

stx-monitor-helm/stx-monitor-helm/manifests/monitor_manifest.yaml

@@ -103,6 +103,14 @@ data:
     esMajorVersion: 7
     masterService: 'mon-elasticsearch-data-headless, mon-elasticsearch-master'
     podManagementPolicy: OrderedReady
+    clusterHealthCheckParams: ''
+    extraEnvs:
+      - name: DATA_PRESTOP_SLEEP
+        value: "100"
+    lifecycle:
+      preStop:
+        exec:
+          command: ["/bin/sh", "-c", "MASTER=$(printenv node.master);if [[ \"$MASTER\" == true ]]; then sleep $(printenv DATA_PRESTOP_SLEEP);fi"]
   wait:
     resources:
       - labels:
@@ -177,6 +185,7 @@ data:
     esMajorVersion: 7
     masterService: 'mon-elasticsearch-data-headless, mon-elasticsearch-master'
     podManagementPolicy: OrderedReady
+    clusterHealthCheckParams: ''
   wait:
     resources:
       - labels:
@@ -231,6 +240,7 @@ data:
     esMajorVersion: 7
     masterService: 'mon-elasticsearch-data-headless, mon-elasticsearch-master'
     podManagementPolicy: OrderedReady
+    clusterHealthCheckParams: ''
   wait:
     resources:
       - labels: