To Deploy kubernetes pods of OracleDatabase only on nodes in a particular nodepool having label "pool" (#1895)

* Added Pool

* Added nodepool label 'pool'

* Added nodepool label 'pool'

* generalised the label name

* generalised the label name

* generalised the label name

Author: mahipalm0911

OracleDatabase/SingleInstance/helm-charts/oracle-db/templates/deployment.yaml

@@ -31,9 +31,14 @@ spec:
       securityContext:
         runAsUser: 54321
         fsGroup: 54321
-    {{- if .Values.availabilityDomain }}
+    {{- if or .Values.availabilityDomain .Values.nodeLabels}}
       nodeSelector:
+      {{- range $key, $value := .Values.nodeLabels }}
+        {{ $key }}: {{ $value | quote }}
+      {{- end }}
+      {{- if .Values.availabilityDomain }}
         failure-domain.beta.kubernetes.io/zone: "{{ .Values.availabilityDomain }}"
+      {{- end }}
     {{- end }}
       containers:
         - name: oracle-db

OracleDatabase/SingleInstance/helm-charts/oracle-db/values.yaml

@@ -46,3 +46,8 @@ imagePullPolicy: Always
 ## container registry login/password
 imagePullSecrets:
 
+## Deploy only on nodes having required labels .
+## Format label_name : label_value . eg pool: sidb
+## Leave empty if there is no such requirement
+nodeLabels:
+#  pool: sidb