本文将介绍在kubernetes环境中部署一套php应用系统。前端web采用nginx、中间件php以fastcgi的方式运行，后台数据库由mysql主从提供支撑。

各服务组件之间的调用采用dns解析服务名的方式进行，数据和配置文件持久化采用hostPath。

一、通过dockerfile创建php镜像文件

# cat dockerfile

FROM docker.io/openshift/base-centos7:latest

MAINTAINER feiyu "akwangj@126.com"

RUN yum makecache

RUN yum -y install php-fpm php php-gd php-mysql php-mbstring php-xml php-mcrypt  php-imap php-odbc php-pear php-xmlrpc

RUN sed -i 's/listen = 127.0.0.1:9000/listen = 0.0.0.0:9000/' /etc/php-fpm.d/www.conf

RUN sed -i 's/listen.allowed_clients = 127.0.0.1/;listen.allowed_clients = 127.0.0.1/' /etc/php-fpm.d/www.conf

EXPOSE 9000

CMD ["/sbin/php-fpm"]

# docker build -t php:0.1 .

二、部署php

# cat php-deployment.yaml

apiVersion: apps/v1

kind: Deployment

metadata:

name: php-server

labels:

name: php-server

spec:

replicas: 1

selector:

matchLabels:

app: php-server

template:

metadata:

labels:

app: php-server

spec:

containers:

- name: php-server

image: php:0.1

volumeMounts:

- mountPath: /var/www/html/

name: nginx-data

ports:

- containerPort: 9000

volumes:

- name: nginx-data

hostPath:

path: /root/k8s/nmp/html

# cat php-svc.yaml

apiVersion: v1

kind: Service

metadata:

name: php

spec:

ports:

- name: php

port: 9000

protocol: TCP

targetPort: 9000

selector:

app: php-server

kubectl apply -f php-deploy.yaml -f php-svc.yaml

三、部署nginx

cat nginx-deploy.yaml

apiVersion: apps/v1

kind: Deployment

metadata:

name: nginx-php

spec:

selector:

matchLabels:

app: nginx-php

replicas: 1

template:

metadata:

labels:

app: nginx-php

spec:

containers:

- name: nginx-php

image: nginx:latest

ports:

- containerPort: 80

volumeMounts:

- name: nginx-data

mountPath: /usr/share/nginx/html

- name: nginx-conf

mountPath: /etc/nginx/conf.d/

volumes:

- name: nginx-data

hostPath:

path: /root/k8s/nmp/html

- name: nginx-conf

hostPath:

path: /root/k8s/nmp/conf

cat nginx-svc.yaml

apiVersion: v1

kind: Service

metadata:

name: nginx-php

spec:

type: NodePort

ports:

- name: nginx

port: 80

protocol: TCP

targetPort: 80

nodePort: 30003

selector:

app: nginx-php

nginx配置文件

# cat /root/k8s/nmp/conf/default.conf

server {

listen       80;

server_name  localhost;

#charset koi8-r;

#access_log  /var/log/nginx/host.access.log  main;

location / {

root   /usr/share/nginx/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   /usr/share/nginx/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   php:9000;

fastcgi_index  index.php;

fastcgi_param  SCRIPT_FILENAME  /var/www/html/$fastcgi_script_name;

include        fastcgi_params;

}

# deny access to .htaccess files, if Apache's document root

# concurs with nginx's one

#

#location ~ /\.ht {

#    deny  all;

#}

}

kubectl apply -f nginx-deploy.yaml -f nginx-svc.yaml

网页访问phpinfo页面测试

四、部署mysql

vi mysql-deployment.yaml

apiVersion: apps/v1

kind: Deployment

metadata:

name: php-mysql

labels:

app: mysql

spec:

replicas: 2

selector:

matchLabels:

app: mysql

template:

metadata:

labels:

app: mysql

spec:

containers:

- image: mysql:5.7

name: mysql

env:

- name: MYSQL_ROOT_PASSWORD

valueFrom:

secretKeyRef:

#kubectl create secret generic mysql-pass --from-literal=password=Passwd123

name: mysql-pass

key: password

ports:

- containerPort: 3306

name: mysql

volumeMounts:

- name: mysql-persistent-storage

mountPath: /var/lib/mysql

volumes:

- name: mysql-persistent-storage

persistentVolumeClaim:

claimName: mysql-claim

vi mysql-svc.yaml

apiVersion: v1

kind: Service

metadata:

name: mysql

labels:

app: mysql

spec:

ports:

- port: 3306

targetPort: 3306

selector:

app: mysql

mysql>  grant all privileges on *.* to 'root'@'%' identified by 'Passwd123';

Query OK, 0 rows affected, 1 warning (0.05 sec)

mysql> flush privileges;

Query OK, 0 rows affected (0.04 sec)

五、下载Discuz应用部署，测试php和mysql主从的连通性

下载地址：http://www.discuz.net/thread-3796882-1-1.html

# cd /root/k8s/nmp/html

# unzip Discuz_X3.3_SC_UTF8.zip

# mv upload/* ./

通过访问网页进行部署

数据库服务器选择这里是个坑

安装成功，正常访问

---------------------

作者：菲宇

来源：CSDN

原文：https://blog.csdn.net/bbwangj/article/details/82954187

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