devops-workshops-for-students/k8s.yaml at develop · kryty8/devops-workshops-for-students · GitHub

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kind: PersistentVolume
apiVersion: v1
metadata:
  name: postgres-pv-volume
  labels:
    type: local
    app: postgres
spec:
  storageClassName: manual
  capacity:
    storage: 1Gi
  accessModes:
    - ReadWriteMany
  hostPath:
    path: "/mnt/postgres_data"
---
kind: PersistentVolumeClaim
apiVersion: v1
metadata:
  name: postgres-pv-claim
  labels:
    app: postgres
spec:
  storageClassName: manual
  accessModes:
    - ReadWriteMany
  resources:
    requests:
      storage: 1Gi
---
apiVersion: v1
kind: ConfigMap
metadata:
  name: postgres-config
  labels:
    app: workshop
data:
  POSTGRES_DB: prod_db
  POSTGRES_USER: prod_user
  POSTGRES_PASSWORD: prod_password
---
apiVersion: v1
kind: ConfigMap
metadata:
  name: flaskr-config
  labels:
    app: workshop
    tier: backend
data:
  FLASK_DEBUG: "True"
  FLASK_ENV: "development"
  DATABASE_URI: "postgresql://prod_user:prod_password@postgres:5432/prod_db"
---
apiVersion: v1
kind: Service
metadata:
  name: postgres
  labels:
    app: workshop
spec:
  type: NodePort
  ports:
    - protocol: TCP
      port: 5432
      targetPort: 5432
  selector:
    app: workshop
    tier: database
---
apiVersion: v1
kind: Service
metadata:
  name: flaskr
  labels:
    app: workshop
spec:
  type: LoadBalancer
  selector:
    app: workshop
    tier: backend
  ports:
    - protocol: TCP
      port: 5000
      targetPort: 5000
---
kind: StatefulSet
apiVersion: apps/v1
metadata:
  name: postgres
  labels:
    app: workshop
spec:
  replicas: 1
  selector:
    matchLabels:
      app: workshop
      tier: database
  template:
    metadata:
      labels:
        app: workshop
        tier: database
    spec:
      volumes:
        - name: postgresql
          persistentVolumeClaim:
            claimName: postgres-pv-claim
      containers:
        - name: postgres
          image: postgres:14
          imagePullPolicy: IfNotPresent
          ports:
            - containerPort: 5432
          envFrom:
            - configMapRef:
                name: postgres-config
          volumeMounts:
            - name: postgresql
              mountPath: /var/lib/postgresql/data
---
apiVersion: apps/v1
kind: Deployment
metadata:
  name: flaskr
  labels:
    app: workshop
spec:
  selector:
    matchLabels:
      app: workshop
      tier: backend
  replicas: 1
  template:
    metadata:
      labels:
        app: workshop
        tier: backend
    spec:
      containers:
      - name: flaskr
        image: flask-app:develop
        imagePullPolicy: IfNotPresent
        startupProbe:
          httpGet:
            path: /
            port: 5000
          periodSeconds: 10
          failureThreshold: 30
        livenessProbe:
          httpGet:
            path: /
            port: 5000
          initialDelaySeconds: 10
          periodSeconds: 10
          failureThreshold: 1
        envFrom:
          - configMapRef:
              name: flaskr-config
        ports:
        - containerPort: 5000
      restartPolicy: Always