feat: Add examples of Reclaim Policy Retain

Author: ondrejsika

README.md

@@ -1381,6 +1381,36 @@ kubectl apply -f nfs-volume-example.yml
 
 See: <http://127.0.0.1:8001/api/v1/namespaces/default/pods/nfs-volume-example/proxy/>
 
+### Reclaim Policy Retain
+
+#### Install Storage Classes with Reclaim Policy Retain
+
+Minikube
+
+```
+kubectl apply -f sc-minikube-retain.yml
+```
+
+DigitalOcean
+
+```
+kubectl apply -f sc-do-retain.yml
+```
+
+#### Apply PVC with Storage Class
+
+Minikube
+
+```
+kubectl apply -f pvc-minikube-retain.yml
+```
+
+DigitalOcean
+
+```
+kubectl apply -f pvc-do-retain.yml
+```
+
 ## ConfigMaps & Secrets
 
 ### Create secret

pvc-do-retain.yml

@@ -0,0 +1,11 @@
+apiVersion: v1
+kind: PersistentVolumeClaim
+metadata:
+  name: do-block-storage-retain
+spec:
+  storageClassName: do-block-storage-retain
+  accessModes:
+    - ReadWriteOnce
+  resources:
+    requests:
+      storage: 1Gi

pvc-minikube-retain.yml

@@ -0,0 +1,11 @@
+apiVersion: v1
+kind: PersistentVolumeClaim
+metadata:
+  name: standard-retain
+spec:
+  storageClassName: standard-retain
+  accessModes:
+    - ReadWriteOnce
+  resources:
+    requests:
+      storage: 1Gi