架构图：

 示例：

[root@master ~]# cat webcluster.yaml 
---
kind: PersistentVolume
apiVersion: v1
metadata:
  name: pv-nfs
spec:
  volumeMode: Filesystem
  capacity:
    storage: 30Gi
  accessModes:
  - ReadWriteOnce
  - ReadOnlyMany
  - ReadWriteMany
  persistentVolumeReclaimPolicy: Retain
  nfs:
    server: 192.168.1.100
    path: /var/webroot

---
kind: PersistentVolumeClaim
apiVersion: v1
metadata:
  name: pvc-nfs
spec:
  volumeMode: Filesystem
  accessModes:
  - ReadWriteMany
  resources:
    requests:
      storage: 25Gi

---
kind: ConfigMap
apiVersion: v1
metadata:
  name: nginx-conf
data:
  nginx.conf: |2

    #user  nobody;
    worker_processes  1;

    #error_log  logs/error.log;
    #error_log  logs/error.log  notice;
    #error_log  logs/error.log  info;

    #pid        logs/nginx.pid;


    events {
        worker_connections  1024;
    }


    http {
        include       mime.types;
        default_type  application/octet-stream;

        #log_format  main  '$remote_addr - $remote_user [$time_local] "$request" '
        #                  '$status $body_bytes_sent "$http_referer" '
        #                  '"$http_user_agent" "$http_x_forwarded_for"';

        #access_log  logs/access.log  main;

        sendfile        on;
        #tcp_nopush     on;

        #keepalive_timeout  0;
        keepalive_timeout  65;

        #gzip  on;

        server {
            listen       80;
            server_name  localhost;

            #charset koi8-r;

            #access_log  logs/host.access.log  main;

            location / {
                root   html;
                index  index.html index.htm;
            }

            #error_page  404              /404.html;

            # redirect server error pages to the static page /50x.html
            #
            error_page   500 502 503 504  /50x.html;
            location = /50x.html {
                root   html;
            }

            # proxy the PHP scripts to Apache listening on 127.0.0.1:80
            #
            #location ~ \.php$ {
            #    proxy_pass   http://127.0.0.1;
            #}

            # pass the PHP scripts to FastCGI server listening on 127.0.0.1:9000
            #
            location ~ \.php$ {
                root           html;
                fastcgi_pass   127.0.0.1:9000;
                fastcgi_index  index.php;
                include        fastcgi.conf;
            }

            # deny access to .htaccess files, if Apache's document root
            # concurs with nginx's one
            #
            #location ~ /\.ht {
            #    deny  all;
            #}
        }


        # another virtual host using mix of IP-, name-, and port-based configuration
        #
        #server {
        #    listen       8000;
        #    listen       somename:8080;
        #    server_name  somename  alias  another.alias;

        #    location / {
        #        root   html;
        #        index  index.html index.htm;
        #    }
        #}


        # HTTPS server
        #
        #server {
        #    listen       443 ssl;
        #    server_name  localhost;

        #    ssl_certificate      cert.pem;
        #    ssl_certificate_key  cert.key;

        #    ssl_session_cache    shared:SSL:1m;
        #    ssl_session_timeout  5m;

        #    ssl_ciphers  HIGH:!aNULL:!MD5;
        #    ssl_prefer_server_ciphers  on;

        #    location / {
        #        root   html;
        #        index  index.html index.htm;
        #    }
        #}

    }

---
kind: Deployment
apiVersion: apps/v1
metadata:
  name: webnginx
spec:
  selector:
    matchLabels:
      myapp: nginx
  replicas: 3
  template:
    metadata:
      labels:
        myapp: nginx
    spec:
      volumes:
      - name: nginx-php
        configMap: 
          name: nginx-conf
      - name: log-data
        hostPath:
          path: /var/log/weblog
          type: DirectoryOrCreate
      - name: website
        persistentVolumeClaim:
          claimName: pvc-nfs
      containers:
      - name: nginx
        image: 192.168.1.100:5000/myos:nginx
        volumeMounts:
        - name: nginx-php
          subPath: nginx.conf
          mountPath: /usr/local/nginx/conf/nginx.conf
        - name: log-data
          mountPath: /usr/local/nginx/logs
        - name: website
          mountPath: /usr/local/nginx/html
        ports:
        - protocol: TCP
          containerPort: 80
      - name: php-backend
        image: 192.168.1.100:5000/myos:php-fpm
        volumeMounts:
        - name: website
          mountPath: /usr/local/nginx/html
      restartPolicy: Always

---
kind: Service
apiVersion: v1
metadata:
  name: webcluster
spec:
  ports:
  - protocol: TCP
    port: 80
    targetPort: 80
  selector:
    myapp: nginx
  type: ClusterIP

---
apiVersion: extensions/v1beta1
kind: Ingress
metadata:
  name: myweb
  annotations:
    kubernetes.io/ingress.class: "nginx"
spec:
  backend:
    serviceName: webcluster
    servicePort: 80

[root@master ~]# kubectl apply -f webcluster.yaml 
persistentvolume/pv-nfs created
persistentvolumeclaim/pvc-nfs created
configmap/nginx-conf created
deployment.apps/webnginx created
service/webcluster created
ingress.extensions/myweb created
[root@master ~]# kubectl get pod
NAME                       READY   STATUS    RESTARTS   AGE
webnginx-647877b59-hdb64   2/2     Running   0          11s
webnginx-647877b59-ljb6g   2/2     Running   0          11s
webnginx-647877b59-rqmdr   2/2     Running   0          11s
[root@master ~]# kubectl get ingresses
NAME    HOSTS   ADDRESS        PORTS   AGE
myweb   *       192.168.1.31   80      17s
[root@master ~]# # 给 node-0001 绑定弹性公网IP，或使用 ELB 发布到互联网即可验证