dep.yaml

kind: Deployment
apiVersion: apps/v1
metadata:
  name: php-fpm-nginx
  namespace: test
spec:
  selector:
    matchLabels:
      app: php-fpm-nginx
  replicas: 3
  strategy:
    type: RollingUpdate
    rollingUpdate:
      maxSurge: 1
      maxUnavailable: 1 
  template:
    metadata:
      labels:
        app: php-fpm-nginx
    spec:
      imagePullSecrets:
        - name: default-secret
      containers:
        - name: php-fpm
          image: CONTAINER_IMAGE
          imagePullPolicy: Always
          ports:
            - containerPort: 9000
          volumeMounts:
            - mountPath: /var/www/html
              name: nginx-www
          lifecycle:
            postStart:
              exec:
                command:
                  - "/bin/sh"
                  - "-c"
                  - >
                    cp -r /app/. /var/www/html;
                    chmod -R 755 /var/www/html;
            preStop:
              exec:
                command:
                  - sh
                  - '-c'
                  - sleep 5 && kill -SIGQUIT 1
        - name: nginx
          image: nginx
          ports:
            - containerPort: 80
          volumeMounts:
            - mountPath: /var/www/html
              name: nginx-www
            - mountPath: /etc/nginx/nginx.conf
              subPath: nginx.conf
              name: nginx-config
          lifecycle:
            preStop:
              exec:
                command:
                  - sh
                  - '-c'
                  - sleep 5 && /usr/sbin/nginx -s quit
      volumes:
        - name: nginx-www
          emptyDir: {}
        - name: nginx-config
          configMap:
            name: nginx-config