Docker stack 如何一键编排Inmp？【linux云计算+运维开发】

环境要求

1、配置nfs存储卷

（1）在docker swarm集群中所有节点都确认安装nfs客户端软件

# yum install nfs-utils rpcbind -y

（2）在192.168.122.1 上搭建nfs,共享目录给docker swarm集群中所有节点挂载

[root@nfs ~]# mkdir /opt/dockervolume

[root@nfs ~]# vim /etc/exports

/opt/dockervolume   *(rw,no_root_squash,sync)

[root@nfs ~]# systemctl restart rpcbind nfs-server
[root@nfs ~]# systemctl enble rpcbind nfs-server

（3）在docker swarm集群中所有节点创建存储卷，并验证。

# docker volume create   --driver local --opt type=nfs --opt o=addr=192.168.122.1,rw --opt device=:/opt/dockervolume

nginx_volume

# docker volume ls |grep nginx_volume

local               nginx_volume

# docker volume inspect nginx_volume
[

    {

        "CreatedAt": "2019-06-12T13:24:09+08:00",

        "Driver": "local",

        "Labels": {}, "Mountpoint":

        "/var/lib/docker/volumes/nginx_volume/_data", "Name": "nginx_volume",

        "Options": {

            "device": ":/opt/dockervolume", "o": "addr=192.168.122.1,rw",

            注意这里的挂载参数要有

            "type": "nfs"

},

"Scope": "local"

}

2、下载镜像

在任意能上外网的机器上操作

[root@nfs ~]# docker pull richarvey/nginx-php-fpm

3、准备是相关配置文件

[root@nfs ~]# mkdir /root/discuz/dockerfile -p
[root@nfs ~]# cd /root/discuz/dockerfile

准备nginx主配置文件

[root@nfs dockerfile]# vim nginx.conf user nginx;

worker_processes auto;

error_log /var/log/nginx/error.log warn;

pid /var/run/nginx.pid;

events {

    use epoll;
    worker_connections 65535;

}

http {

    include    /etc/nginx/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

    sendfile #tcp_nopush

    /var/log/nginx/access.log on;

    on;

    main;

    keepalive_timeout 65; #gzip on;

    include /etc/nginx/conf.d/*.conf;

}

准备nginx子配置文件

[root@nfs dockerfile]# vim web.conf server {

    listen 80; server_name _;

    index index.php index.html; root /var/www/html;

    location ~ \.php$ {

        fastcgi_pass 127.0.0.1:9000; fastcgi_index index.php; fastcgi_param SCRIPT_FILENAME

        $document_root$fastcgi_script_name; include fastcgi_params;

    }

}

准备时区文件

[root@nfs dockerfile]# cp /etc/localtime .

准备php-fpm子配置文件

[root@nfs dockerfile]# vim php-fpm-www.conf [www]

user = nginx group = nginx

listen = 127.0.0.1:9000

pm = dynamic pm.max_children = 64

pm.start_servers = 20

pm.min_spare_servers = 5

pm.max_spare_servers = 35

pm.max_requests = 500

rlimit_files = 1024

4、准备镜像

编写Dockerfile

[root@nfs dockerfile]# vim dockerfile FROM richarvey/nginx-php-fpm

MAINTAINER daniel@itcast.cn

RUN echo 'Asia/Shanghai' > /etc/timezone && rm -f

/etc/nginx/nginx.conf && rm -f /usr/local/etc/php- fpm.d/www.conf

COPY localtime /etc/localtime

COPY nginx.conf /etc/nginx/nginx.conf COPY web.conf /etc/nginx/conf.d/web.conf

COPY php-fpm-www.conf /usr/local/etc/php-fpm.d/www.conf

CMD /usr/sbin/nginx -c /etc/nginx/nginx.conf &&

/usr/local/sbin/php-fpm -c /usr/local/etc/php-fpm.conf

构建镜像

[root@nfs dockerfile]# docker build -f dockerfile -t 192.168.122.18/library/nginx-php-fpm:v1 .

上传镜像到harbor

[root@nfs dockerfile]# docker login 192.168.122.18

[root@nfs dockerfile]# docker push
192.168.122.18/library/nginx-php-fpm:v1

5、编排docker stack

编写YMAL文件

在docker swarm集群中的管理节点进行操作

[root@manager ~]# cat discuz.yml
version: '3'

services:
    db:

    image: 192.168.122.18/library/mysql:5.7 environment:

        MYSQL_ROOT_PASSWORD: 123

        MYSQL_DATABASE: discuz
        MYSQL_USER: discuz_user MYSQL_PASSWORD: 123

    deploy:

        replicas: 1

    nginx-php:

        image: 192.168.122.18/library/nginx-php-fpm:v1
        depends_on:

            - db
    ports:

        - "8011:80"

     volumes:

        - "nginx_volume:/var/www/html"
    deploy:

        replicas: 1

volumes:

    nginx_volume:
        driver: local
        driver_opts:

            type: "nfs"

            o: "addr=192.168.122.1,rw"

            device: ":/opt/dockervolume"

一键发布stack

[root@manager ~]# docker stack deploy -c discuz2.yml discuz
Creating network discuz_default

Creating service discuz_db
Creating service discuz_nginx-php

6、拷贝discuz代码到nfs共享

在nfs服务器上操作

[root@nfs dockerfile]# git clone
https://gitee.com/ComsenzDiscuz/DiscuzX.git

[root@nfs dockerfile]# cp DiscuzX/upload/* /opt/dockervolume/

-rf

cp: overwrite '/opt/dockervolume/index.php'? y

7, 通过浏览器安装

[root@nfs dockerfile]# chmod o+w -R /opt/dockervolume/

上图少了-R参数，请加上

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