1-deployment.yml

apiVersion: apps/v1
kind: Deployment
metadata:
  name: ghost
  namespace: default
  labels:
    app: ghost
spec:
  strategy:
    type: Recreate
  replicas: 1
  selector:
    matchLabels:
      app: ghost
  template:
    metadata:
      labels:
        app: ghost
    spec:
      containers:
        - name: website
          image: ghost:5.48-alpine
          imagePullPolicy: Always
          ports:
            - name: http
              containerPort: 2368
              protocol: TCP
          readinessProbe:
            httpGet:
              path: /ghost/api/admin/site/
              port: http
              httpHeaders:
              - name: X-Forwarded-Proto
                value: https
          livenessProbe:
            initialDelaySeconds: 60
            httpGet:
              path: /ghost/api/admin/site/
              port: http
              httpHeaders:
              - name: X-Forwarded-Proto
                value: https
          resources:
            requests:
              memory: '128Mi'
              cpu: '100m'
            limits:
              memory: '256Mi'
              cpu: '150m'
          env:
            - name: NODE_ENV
              value: production
            - name: database__client
              value: mysql
            - name: database__connection__host
              value: your-mysql.host.com
            - name: database__connection__user
              valueFrom:
                secretKeyRef:
                  name: ghost
                  key: mysql_username
            - name: database__connection__password
              valueFrom:
                secretKeyRef:
                  name: ghost
                  key: mysql_password
            - name: database__connection__database
              value: <your-database-name>
            - name: logging__transports
              value: '["stdout"]'
            - name: logging__level
              value: info
            - name: url
              value: <https://your-host-name.domain.com>
            - name: mail__transport
              value: SMTP
            - name: mail__options__service
              value: Mailgun
            - name: mail__options__auth__user
              valueFrom:
                secretKeyRef:
                  name: ghost
                  key: smtp_username
            - name: mail__options__auth__pass
              valueFrom:
                secretKeyRef:
                  name: ghost
                  key: smtp_password
          volumeMounts:
          - name: ghost
            mountPath: /var/lib/ghost/content

      volumes:
        - name: ghost
          persistentVolumeClaim:
            claimName: ghost