Added Postgres reconfigure docs

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

docs/examples/postgres/reconfigure/apply-config.yaml

@@ -0,0 +1,14 @@
+apiVersion: ops.kubedb.com/v1alpha1
+kind: PostgresOpsRequest
+metadata:
+  name: pgops-reconfigure-apply-config
+  namespace: demo
+spec:
+  type: Reconfigure
+  databaseRef:
+    name: ha-postgres
+  configuration:   
+    applyConfig:
+      user.conf: |
+        max_connections = 230
+        shared_buffers = 512MB

docs/examples/postgres/reconfigure/ha-postgres.yaml

@@ -0,0 +1,19 @@
+apiVersion: kubedb.com/v1
+kind: Postgres
+metadata:
+  name: ha-postgres
+  namespace: demo
+spec:
+  version: "16.1"
+  replicas: 3
+  configSecret:
+    name: pg-configuration
+  storageType: Durable
+  storage:
+    storageClassName: "standard"
+    accessModes:
+      - ReadWriteOnce
+    resources:
+      requests:
+        storage: 1Gi
+  deletionPolicy: WipeOut

docs/examples/postgres/reconfigure/reconfigure-using-secret.yaml

@@ -0,0 +1,12 @@
+apiVersion: ops.kubedb.com/v1alpha1
+kind: PostgresOpsRequest
+metadata:
+  name: pgops-reconfigure-config
+  namespace: demo
+spec:
+  type: Reconfigure
+  databaseRef:
+    name: ha-postgres
+  configuration:   
+    configSecret:
+      name: new-pg-configuration

docs/examples/postgres/reconfigure/remove-config.yaml

@@ -0,0 +1,11 @@
+apiVersion: ops.kubedb.com/v1alpha1
+kind: PostgresOpsRequest
+metadata:
+  name: remove-config
+  namespace: demo
+spec:
+  type: Reconfigure
+  databaseRef:
+    name: ha-postgres
+  configuration:
+    removeCustomConfig: true

docs/guides/postgres/reconfigure/_index.md

@@ -0,0 +1,10 @@
+---
+title: Reconfigure
+menu:
+  docs_{{ .version }}:
+    identifier: pg-reconfigure
+    name: Reconfigure
+    parent: pg-postgres-guides
+    weight: 46
+menu_name: docs_{{ .version }}
+---