kubernetes-nginx+php访问集群外mysql部署wordpress

Posted 2021-12-19 南北二斗

一、配置nginx的configmap

apiVersion: v1
kind: ConfigMap
metadata:
  name: nginx-config
data:
 default: |
    server 
        listen       80;
        server_name  localhost;

        location / 
            root   /usr/share/nginx/html;
            index  index.html index.htm index.php;
        

        error_page   500 502 503 504  /50x.html;
        location = /50x.html 
            root   /var/www/html;
        

        location ~ \\.php$ 
            root           /usr/share/nginx/html;
            fastcgi_pass   127.0.0.1:9000;
            fastcgi_index  index.php;
            fastcgi_param  SCRIPT_FILENAME  $document_root$fastcgi_script_name;
            include        fastcgi_params;
        

        location ~ /\\.ht 
            deny  all;
        
    

二、创建nginx+php（nginx和php在同一个pod下）

apiVersion: apps/v1
kind: Deployment
metadata:
  name: nginx-php-deployment
spec:
  selector:
    matchLabels:
      app: nginx-php-deployment
  replicas: 1
  template:
    metadata:
      labels:
        app: nginx-php-deployment
    spec:
      containers:
      - name: php
        image: registry.cn-shenzhen.aliyuncs.com/user-sum/php
        imagePullPolicy: IfNotPresent
        ports:
        - containerPort: 9000
        volumeMounts:
        - name: nginxpath
#          mountPath: /var/www/html/
          mountPath: /usr/share/nginx/html
      - name: nginx
#        image: registry.cn-shenzhen.aliyuncs.com/user-sum/alpine:nginx1.18.0
        image: nginx
        imagePullPolicy: IfNotPresent
        ports:
        - containerPort: 80
        volumeMounts:
        - name: nginxpath
          mountPath: /usr/share/nginx/html
        - name: nginx-config
          mountPath: /etc/nginx/conf.d/
      volumes:
        - name: nginx-config
          configMap:
            name: nginx-config
            items:
              - key: default
                path: default.conf
        - name: nginxpath
          hostPath:
            path: /root/nginxpath          

三、创建nginx的service

kind: Service
apiVersion: v1
metadata:
  name: nginx-php-svc
spec:
  type: NodePort
  selector:
    app: nginx-php-deployment
  ports:
  - name: http
    protocol: TCP
    port: 80
#    nodePort: 80
    targetPort: 80

四、创建endpoint和service连接集群外mysql

apiVersion: v1
kind: Endpoints
metadata:
  name: mysql-external
  namespace: default
subsets:
- addresses:
  - ip: 172.17.138.251
#  - ip: 172.29.9.52
  ports:
  - name: mysql
    port: 3306
    protocol: TCP
  notReadyAddresses:
  - ip: 172.17.138.252
---
apiVersion: v1
kind: Service
metadata:
  name: mysql-external
  namespace: default
spec:
  type: ClusterIP
  ports:
  - name: mysql
    port: 3306
    targetPort: 3306
    protocol: TCP

五、部署wordpress

1、下载wordpress源码

下载，也可wget去网上下载
链接：https://pan.baidu.com/s/1XPL5YOystz7HXlSpt3YpBg 
提取码：wxi4

2、部署

cd /root/nginxpath/
tar -zxvf wordpress-5.0.1-zh_CN.tar.gz
mv wordpress/* /root/nginxpath/

3、通过nodeport 20375访问（记得防火墙开放端口）

[root@nginxpath]# kubectl get svc
NAME                      TYPE        CLUSTER-IP    EXTERNAL-IP      PORT(S)        AGE
demoapp-nodeport-svc123   NodePort    10.1.69.83    <none>           80:30937/TCP   2d6h
kubernetes                ClusterIP   10.1.0.1      <none>           443/TCP        23d
mysql-external            ClusterIP   10.1.219.34   <none>           3306/TCP       2d5h
nginx-php-svc             NodePort    10.1.0.141    <none>           80:20375/TCP   33h

http://ip:20375/index.php