feat (k8s): add local storage class for persistent storage

k8s/storage/local-storage-class.yaml

@@ -0,0 +1,8 @@
+apiVersion: storage.k8s.io/v1
+kind: StorageClass
+metadata:
+  name: local-storage
+  annotations:
+    storageclass.kubernetes.io/is-default-class: "true"
+provisioner: kubernetes.io/no-provisioner
+volumeBindingMode: WaitForFirstConsumer

k8s/storage/postgresql-pv.yaml

@@ -0,0 +1,21 @@
+apiVersion: v1
+kind: PersistentVolume
+metadata:
+  name: postgresql-pv
+spec:
+  capacity:
+    storage: 20Gi
+  accessModes:
+  - ReadWriteOnce
+  persistentVolumeReclaimPolicy: Retain
+  storageClassName: local-storage
+  local:
+    path: /root/containers/postgresql-k8s-data
+  nodeAffinity:
+    required:
+      nodeSelectorTerms:
+      - matchExpressions:
+        - key: kubernetes.io/hostname
+          operator: In
+          values:
+          - intel-4cpu-ubuntu-16gb-nbg-base