一.搭建nginx+php
1.站点配置文件
1.1创建nginx-configmap.yaml
[root@master k8s]# cat nginx-configmap.yamlapiVersion: v1kind: ConfigMapmetadata: ???name: nginx-configdata: ???default.conf: | ???????server { ???????????listen ??????80; ???????????server_name ?localhost; ???????????root ??/usr/share/nginx/html; ???????????access_log ?/var/log/nginx/host_access.log; ???????????error_log ?/var/log/nginx/host_error.log debug; ???????????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 ??/usr/share/nginx/html; ???????????} ???????????location ~ \.php$ { ???????????root ??/usr/share/nginx/html; ???????????fastcgi_pass ??10.254.235.214:9000; ???????????fastcgi_index ?index.php; ???????????fastcgi_param ?SCRIPT_FILENAME ?$document_root$fastcgi_script_name; ???????????include ???????fastcgi_params; ???????????} ???????????}
ps:
10.254.235.214: 是下文中配置的php-service服务的集群ip
1.2 应用该配置文件
#kubectl create -f nginx-configmap.yaml
2.nginx
2.1创建nginx-deployment.yaml
[root@master k8s]# cat nginx-deployment.yamlapiVersion: v1kind: Servicemetadata: ???name: nginx-servicespec: ???type: NodePort ???selector: ???????app: nginx ???ports: ???????- protocol: TCP ?????????port: 80 ?????????targetPort: 80---apiVersion: extensions/v1beta1kind: Deploymentmetadata: ???name: nginx-deploymentspec: ???selector: ???????matchLabels: ???????????app: nginx ???template: ???????metadata: ???????????labels: ???????????????app: nginx ???????spec: ???????????containers: ???????????????- name: nginx ?????????????????image: nginx:alpine ?????????????????volumeMounts: ?????????????????????- name: nginx-config ???????????????????????mountPath: /etc/nginx/conf.d ?????????????????????- name: web-root ???????????????????????mountPath: /usr/share/nginx/html ???????????volumes: ???????????????- name: nginx-config ?????????????????configMap: ?????????????????????name: nginx-config ???????????????- name: web-root ?????????????????nfs: ?????????????????????server: 192.168.2.17 ?????????????????????path: /data/nfs
ps:请提前搭建好nfs环境,nfs中的server为局域网ip
2.2 应用该配置文件
#kubectl create -f nginx-configmap.yaml
ps:
因为使用了NodePort类型,现在你可以在外部通过任意节点服务器ip+端口访问到nginx服务
你可以可以通过pod上的ip来访问到nginx服务
3.php
3.1 php-deployment.yaml
[root@master k8s]# cat php-deployment.yamlapiVersion: v1kind: Servicemetadata: ???name: php-servicespec: ???clusterIP: 10.254.235.214 ???selector: ???????app: php ???ports: ???????- name: php ?????????port: 9000 ?????????targetPort: 9000---apiVersion: extensions/v1beta1kind: Deploymentmetadata: ???name: php-deploymentspec: ???replicas: 1 ???selector: ???????matchLabels: ???????????app: php ???template: ???????metadata: ???????????labels: ???????????????app: php ???????spec: ???????????containers: ???????????????- name: php ?????????????????image: php:7.2-fpm ?????????????????volumeMounts: ?????????????????????- name: web-root ???????????????????????mountPath: /usr/share/nginx/html ???????????volumes: ???????????????- name: web-root ?????????????????nfs: ?????????????????????server: 192.168.2.17 ?????????????????????path: /data/nfs
3.2 应用该配置文件
#kubectl create -f php-configmap.yaml
二.创建mysql服务
1.一般我们将数据库放在单独的物理服务器上或另一个集群上,我们创建一个mysql-service.yaml
[root@master]# cat mysql-service.yamlapiVersion: v1kind: Servicemetadata: ?name: mysql-service ?namespace: defaultspec: ?ports: ?- protocol: TCP ???port: 3306 ???targetPort: 3306[root@master]#kubectl create -f mysql-service.yaml
2.创建同名的endpoint,这样子service可以使用endpoint
[root@master]# cat mysql-endpoint.yamlapiVersion: v1kind: Endpointsmetadata: ?name: mysql-service ?namespace: defaultsubsets:- addresses: ?- ip: 192.168.2.10 ?ports: ?- port: 3306 ???protocol: TCP[root@master]#kubectl create -f mysql-endpoint.yaml
三.应用程序文件
1.一个简单的php程序文件:
[root@master]#cat b.php<?php$dbms=‘mysql‘;$host= getenv(‘MYSQL_SERVICE_SERVICE_HOST‘); // 获得环境变量,对应php-service;可以进入pod容器内使用env查看$dbName=‘test‘;$user=‘test‘; $pass=‘1983512gx‘;$dsn="$dbms:host=$host;dbname=$dbName";try { ???$dbh = new PDO($dsn, $user, $pass); ????echo "连接成功<br/>"; ???$dbh = null;} catch (PDOException $e) { ???die ("Error!: " . $e->getMessage() . "<br/>");}
2.运行该文件,提示
Error!: could not find driver
这是因为用到了pdo,但php-fpm2镜像并没有这个扩展
3.安装php-pdo扩展(更好的办法是你应该制作一个运行php环境的容器)
kubectl exec -it php-deployment-3540934081-75sqv -- /usr/local/bin/docker-php-ext-install pdo_mysql
4.重启节点上对应的php 容器
docker restart 4cf7949cfc30
ps:
实际操作中在容器内无法连同service,重启了节点的docker才可以.
四.访问
在任意节点上或master上访问
#curl http://192.168.2.18:31746/b.php
应该输出连接成功
在k8s上部署第一个php应用
原文地址：https://www.cnblogs.com/itfenqing/p/10127145.html