一.搭建nginx+php
1.站点配置文件
1.1创建nginx-configmap.yaml
| 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 | [root@master k8s]# cat nginx-configmap.yaml
apiVersion: v1
kind: ConfigMap
metadata:
name: nginx-config
data:
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
| 1 | #kubectl create -f nginx-configmap.yaml
|
2.nginx
2.1创建nginx-deployment.yaml
| 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 | [root@master k8s]# cat nginx-deployment.yaml
apiVersion: v1
kind: Service
metadata:
name: nginx-service
spec:
type: NodePort
selector:
app: nginx
ports:
- protocol: TCP
port: 80
targetPort: 80
---
apiVersion: extensions/v1beta1
kind: Deployment
metadata:
name: nginx-deployment
spec:
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
| 1 | #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
| 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 | [root@master k8s]# cat php-deployment.yaml
apiVersion: v1
kind: Service
metadata:
name: php-service
spec:
clusterIP: 10.254.235.214
selector:
app: php
ports:
- name: php
port: 9000
targetPort: 9000
---
apiVersion: extensions/v1beta1
kind: Deployment
metadata:
name: php-deployment
spec:
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
| 1 | #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
| 1 2 3 4 5 6 7 8 9 10 11 12 13 | [root@master]# cat mysql-service.yaml
apiVersion: v1
kind: Service
metadata:
name: mysql-service
namespace: default
spec:
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
| 1 2 3 4 5 6 7 8 9 10 11 12 13 14 | [root@master]# cat mysql-endpoint.yaml
apiVersion: v1
kind: Endpoints
metadata:
name: mysql-service
namespace: default
subsets:
- 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:
| 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 | [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)
| 1 | 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
| 1 | 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
| 1 | #curl http://192.168.2.18:31746/b.php
|
应该输出连接成功
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