Created helm chart to run postgres

Author: adityasinghal26

.gitignore

@@ -35,4 +35,7 @@ packages/react-devtools-extensions/shared/build
 packages/react-devtools-extensions/.tempUserDataDir
 packages/react-devtools-inline/dist
 packages/react-devtools-shell/dist
-packages/react-devtools-timeline/dist
+packages/react-devtools-timeline/dist
+
+# Helm charts
+*.tgz

deployment/kubernetes/postgres/helm/Chart.yaml

@@ -0,0 +1,24 @@
+apiVersion: v2
+name: postgres
+description: A Helm chart for Kubernetes
+
+# A chart can be either an 'application' or a 'library' chart.
+#
+# Application charts are a collection of templates that can be packaged into versioned archives
+# to be deployed.
+#
+# Library charts provide useful utilities or functions for the chart developer. They're included as
+# a dependency of application charts to inject those utilities and functions into the rendering
+# pipeline. Library charts do not define any templates and therefore cannot be deployed.
+type: application
+
+# This is the chart version. This version number should be incremented each time you make changes
+# to the chart and its templates, including the app version.
+# Versions are expected to follow Semantic Versioning (https://semver.org/)
+version: 0.1.0
+
+# This is the version number of the application being deployed. This version number should be
+# incremented each time you make changes to the application. Versions are not expected to
+# follow Semantic Versioning. They should reflect the version the application is using.
+# It is recommended to use it with quotes.
+appVersion: "0.1.0"

deployment/kubernetes/postgres/helm/templates/deployment.yaml

@@ -0,0 +1,32 @@
+# kubernetes/postgres.yaml
+apiVersion: apps/v1
+kind: Deployment
+metadata:
+  name: {{ .Values.app.name }}
+  namespace: {{ .Values.namespace }}
+spec:
+  replicas: {{ .Values.deployment.replicas }}
+  selector:
+    matchLabels:
+      app: {{ .Values.app.name }}
+  template:
+    metadata:
+      labels:
+        app: {{ .Values.app.name }}
+    spec:
+      containers:
+        - name: {{ .Values.container.name }}
+          image: postgres:13.2-alpine
+          imagePullPolicy: 'IfNotPresent'
+          ports:
+            - containerPort: {{ .Values.container.port }}
+          envFrom:
+            - secretRef:
+                name: postgres-secrets
+          volumeMounts:
+            - mountPath: /var/lib/postgresql/data
+              name: postgresdb
+      volumes:
+        - name: postgresdb
+          persistentVolumeClaim:
+            claimName: postgres-storage-claim

deployment/kubernetes/postgres/helm/templates/secret.yaml

@@ -0,0 +1,9 @@
+apiVersion: v1
+kind: Secret
+metadata:
+  name: postgres-secrets
+  namespace: {{ .Values.namespace }}
+type: Opaque
+data:
+  POSTGRES_USER: {{ .Values.postgres.username }}
+  POSTGRES_PASSWORD: {{ .Values.postgres.password }}

deployment/kubernetes/postgres/helm/templates/service.yaml

@@ -0,0 +1,11 @@
+# kubernetes/postgres-service.yaml
+apiVersion: v1
+kind: Service
+metadata:
+  name: {{ .Values.app.name }}
+  namespace: {{ .Values.namespace }}
+spec:
+  selector:
+    app: {{ .Values.app.name }}
+  ports:
+    - port: {{ .Values.app.port }}

deployment/kubernetes/postgres/helm/templates/storage.yaml

@@ -0,0 +1,30 @@
+# kubernetes/postgres-storage.yaml
+apiVersion: v1
+kind: PersistentVolume
+metadata:
+  name: postgres-storage
+  namespace: backstage
+  labels:
+    type: local
+spec:
+  storageClassName: manual
+  capacity:
+    storage: 2G
+  accessModes:
+    - ReadWriteOnce
+  persistentVolumeReclaimPolicy: Retain
+  hostPath:
+    path: '/mnt/data'
+---
+apiVersion: v1
+kind: PersistentVolumeClaim
+metadata:
+  name: postgres-storage-claim
+  namespace: backstage
+spec:
+  storageClassName: manual
+  accessModes:
+    - ReadWriteOnce
+  resources:
+    requests:
+      storage: 2G

deployment/kubernetes/postgres/helm/values.yaml

@@ -0,0 +1,15 @@
+namespace: 'backstage'
+deployment:
+  replicas: '1'
+
+app:
+  name: 'postgres'
+  port: '5432'
+
+container:
+  name: 'postgres'
+  port: '5432'
+
+postgres:
+  username: 'YmFja3N0YWdl'
+  password: 'aHVudGVyMg=='