Add nodeselector, taints and tolerations examples

Signed-off-by: MobarakHsn <[email protected]>

docs/examples/pgpool/configuration/pgpool-node-selector.yaml

@@ -0,0 +1,16 @@
+apiVersion: kubedb.com/v1alpha2
+kind: Pgpool
+metadata:
+  name: pgpool-node-selector
+  namespace: demo
+spec:
+  version: "4.4.5"
+  replicas: 1
+  postgresRef:
+    name: ha-postgres
+    namespace: demo
+  podTemplate:
+    spec:
+      nodeSelector:
+        disktype: ssd
+  deletionPolicy: WipeOut

docs/examples/pgpool/configuration/pgpool-with-tolerations.yaml

@@ -0,0 +1,19 @@
+apiVersion: kubedb.com/v1alpha2
+kind: Pgpool
+metadata:
+  name: pgpool-with-tolerations
+  namespace: demo
+spec:
+  version: "4.4.5"
+  replicas: 1
+  postgresRef:
+    name: ha-postgres
+    namespace: demo
+  podTemplate:
+    spec:
+      tolerations:
+        - key: "key1"
+          operator: "Equal"
+          value: "node1"
+          effect: "NoSchedule"
+  deletionPolicy: WipeOut

docs/examples/pgpool/configuration/pgpool-without-tolerations.yaml

@@ -0,0 +1,12 @@
+apiVersion: kubedb.com/v1alpha2
+kind: Pgpool
+metadata:
+  name: pgpool-without-tolerations
+  namespace: demo
+spec:
+  version: "4.4.5"
+  replicas: 1
+  postgresRef:
+    name: ha-postgres
+    namespace: demo
+  deletionPolicy: WipeOut