add pg

manifests/00-system-stuff/pg-secret.yaml

@@ -0,0 +1,19 @@
+apiVersion: v1
+kind: Secret
+metadata:
+  name: postgres-secret
+  labels:
+    app: postgres
+type: Opaque
+data:
+    postgres-root-username: cm9vdA==
+    postgres-root-password: bXlwYXNzd29yZA==
+---
+apiVersion: v1
+kind: ConfigMap
+metadata:
+  name: postgres-configmap
+  labels:
+    app: postgres
+data:
+  postgres-dbname: mydb

manifests/01-namespaces/pg.yaml

@@ -0,0 +1,29 @@
+---
+apiVersion: v1
+kind: Namespace
+metadata:
+  labels:
+    name: pg
+  name: pg
+---
+#### https://blog.devgenius.io/how-to-deploy-postgresql-db-server-and-pgadmin-in-kubernetes-a-how-to-guide-57952b4e29a8
+# echo -n '<secret>' | base64
+apiVersion: v1
+kind: Secret
+metadata:
+  name: postgres-secret
+  labels:
+    app: postgres
+type: Opaque
+data:
+    postgres-root-username: YWRtaW4=
+    postgres-root-password: YWRtaW5p
+---
+apiVersion: v1
+kind: ConfigMap
+metadata:
+  name: postgres-configmap
+  labels:
+    app: postgres
+data:
+  postgres-dbname: mainbase

manifests/02-deployments/deployment-postgres.yaml

@@ -0,0 +1,87 @@
+apiVersion: apps/v1
+kind: Deployment
+metadata:
+  name: postgres
+  namespace: pg 
+spec:
+  selector:
+   matchLabels:
+    app: postgres
+  replicas: 1
+  template:
+    metadata:
+      labels:
+        app: postgres
+    spec:
+      containers:
+        - name: postgres
+          image: postgres:latest
+          imagePullPolicy: "IfNotPresent"
+          env:
+           - name: POSTGRES_USER
+             valueFrom:
+               secretKeyRef:
+                 name: postgres-secret
+                 key: postgres-root-username
+           - name: POSTGRES_PASSWORD
+             valueFrom:
+               secretKeyRef:
+                 name: postgres-secret
+                 key: postgres-root-password
+           - name: POSTGRES_DB
+             valueFrom:
+               configMapKeyRef:
+                 name: postgres-configmap
+                 key: postgres-dbname
+            volumeMounts:
+                        - mountPath: /var/lib/postgresql/data
+                          name: postgredb
+                  volumes:
+                    - name: postgredb
+                      persistentVolumeClaim:
+                        claimName: postgres-pv-claim
+            ---
+                kind: PersistentVolume
+                apiVersion: v1
+                metadata:
+                  name: postgres-pv-volume
+                  labels:
+                    type: local
+                    app: postgres
+                spec:
+                  storageClassName: manual
+                  capacity:
+                    storage: 5Gi
+                  accessModes:
+                    - ReadWriteMany
+                  hostPath:
+                    path: "/mnt/data"
+            ---
+                kind: PersistentVolumeClaim
+                apiVersion: v1
+                metadata:
+                  name: postgres-pv-claim
+                  labels:
+                    app: postgres
+                spec:
+                  storageClassName: manual
+                  accessModes:
+                    - ReadWriteMany
+                  resources:
+                    requests:
+                      storage: 5Gi
+            ---
+                apiVersion: v1
+                kind: Service
+                metadata:
+                  name: postgres
+                  labels:
+                    app: postgres
+                spec:
+                   ports:
+                    - name: postgres
+                      port: 5432
+                      nodePort: 30432
+                   type: NodePort
+                   selector:
+                    app: postgres