Docker 学习笔记（四） docker-compose 篇 搭建多容器 ghost博客系统

                   docker-compose搭建多容器 ghost博客系统

一.下载安装 docker-compose

[root@localhost data]# curl -L https://github.com/docker/compose/releases/download/1.9.0/docker-compose-$(uname -s)-$(uname -m) > /usr/local/bin/docker-compose
  % Total    % Received % Xferd  Average Speed   Time    Time     Time  Current
                                 Dload  Upload   Total   Spent    Left  Speed
100   617    0   617    0     0    121      0 --:--:--  0:00:05 --:--:--   195
100 7857k  100 7857k    0     0   148k      0  0:00:52  0:00:52 --:--:--  209k
[root@localhost data]# cd /usr/local/bin/
[root@localhost bin]# ll
总用量 7860
-rw-r--r--. 1 root root 8045957 8月   3 22:13 docker-compose
[root@localhost bin]# cd docker-compose
-bash: cd: docker-compose: 不是目录
[root@localhost bin]# ls -l /usr/local/bin/docker-compose 
-rw-r--r--. 1 root root 8045957 8月   3 22:13 /usr/local/bin/docker-compose
[root@localhost bin]# chmod a+x /usr/local/bin/docker-compose 
[root@localhost bin]# ll
总用量 7860
-rwxr-xr-x. 1 root root 8045957 8月   3 22:13 docker-compose
[root@localhost bin]# docker-compose -version
docker-compose version 1.9.0, build 2585387

[root@localhost bin]# uname -s
Linux
[root@localhost bin]# uname -m
x86_64

curl -L https://github.com/docker/compose/releases/download/1.9.0/docker-compose-$(uname -s)-$(uname -m) > /usr/local/bin/docker-compose

注意 ：$(uname -s)-$(uname -m)将 uname -s 和 uname -m输出的字符拼接到下载地址中。

二 . 搭建多容器 ghost博客系统

[root@localhost ghost]# ll
总用量 4
drwxr-xr-x. 2 root root   6 8月   3 22:41 data
-rw-r--r--. 1 root root 562 8月   3 23:03 docker-compose.yml
drwxr-xr-x. 2 root root  41 8月   3 23:29 ghost
drwxr-xr-x. 2 root root  42 8月   3 23:18 nginx
[root@localhost ghost]# cd ghost/
[root@localhost ghost]# ll
总用量 8
-rw-r--r--. 1 root root 528 8月   3 22:51 config.js
-rw-r--r--. 1 root root 100 8月   3 23:23 Dockerfile
[root@localhost ghost]# vim Dockerfile 
FROM ghost
COPY ./config.js /var/lib/ghost/config.js
EXPOSE 2368
CMD ["npm","start","--production"]
[root@localhost ghost]# ll
总用量 8
-rw-r--r--. 1 root root 528 8月   3 22:51 config.js
-rw-r--r--. 1 root root 100 8月   3 23:23 Dockerfile
[root@localhost ghost]# vim config.js 
var path = require('path'),
config;

config = {
  production:{
    url: 'http://mytestblog.com',
    mail: {},
    database:{
        client: 'mysql',
        connection: {
           host: 'db',
           user: 'ghost',
           password: 'ghost',
           database: 'ghost',
           port: '3306',
           charset: 'utf8'
        },
        debug: false
     },
    paths {
        contentPath: path.join(process.env.GHOST_CONTENT,'/')
    },

    server:{
      host: '0.0.0.0',
      port: '2368'
    }
  }
};
~
[root@localhost ghost]# ll
总用量 8
-rw-r--r--. 1 root root 528 8月   3 22:51 config.js
-rw-r--r--. 1 root root 100 8月   3 23:23 Dockerfile
[root@localhost ghost]# cd ..
[root@localhost ghost]# ll
总用量 4
drwxr-xr-x. 2 root root   6 8月   3 22:41 data
-rw-r--r--. 1 root root 562 8月   3 23:03 docker-compose.yml
drwxr-xr-x. 2 root root  41 8月   3 23:32 ghost
drwxr-xr-x. 2 root root  42 8月   3 23:18 nginx
[root@localhost ghost]# cd nginx/
[root@localhost nginx]# ll
总用量 8
-rw-r--r--. 1 root root  60 8月   3 22:52 Dockerfile
-rw-r--r--. 1 root root 154 8月   3 23:18 nginx.conf
[root@localhost nginx]# vim Dockerfile 
FROM nginx
COPY nginx.conf /etc/nginx/nginx.conf
EXPOSE 80


[root@localhost nginx]# ll
总用量 8
-rw-r--r--. 1 root root  60 8月   3 22:52 Dockerfile
-rw-r--r--. 1 root root 154 8月   3 23:18 nginx.conf
[root@localhost nginx]# vim nginx.conf 
worker_processes 4;
events {worker_connections 1024;}
http {
  server {
    listen 80;
    location / {
       proxy_pass http://ghost-app:2368;
  }
 }
}

[root@localhost nginx]# cd ..
[root@localhost ghost]# ll
总用量 4
drwxr-xr-x. 2 root root   6 8月   3 22:41 data
-rw-r--r--. 1 root root 562 8月   3 23:03 docker-compose.yml
drwxr-xr-x. 2 root root  41 8月   3 23:32 ghost
drwxr-xr-x. 2 root root  42 8月   3 23:32 nginx
[root@localhost ghost]# vim docker-compose.yml 
version: '2'

networks:
   ghost:

services:
   ghost-app:
     build: ghost
     networks:
       - ghost
     depends_on:
       - db
     ports:
       - "2368:2368"

   nginx:
     build: nginx
     networks:
       - ghost
     depends_on:
       - ghost-app
     ports:
       - "80:80"

   db:
     image: "mysql:5.7.15"
     networks:
       - ghost
     environment:
       MYSQL_ROOT_PASSWORD: mysqlroot
       MYSQL_USER: ghost
       MYSQL_PASSWORD: ghost
     volumes:
       - $PWD/data:/var/lib/mysql
     ports:
       - "3306:3306"

~
[root@localhost ghost]# ll
总用量 4
drwxr-xr-x. 2 root root   6 8月   3 22:41 data
-rw-r--r--. 1 root root 562 8月   3 23:03 docker-compose.yml
drwxr-xr-x. 2 root root  41 8月   3 23:32 ghost
drwxr-xr-x. 2 root root  42 8月   3 23:32 nginx

[root@localhost ghost]# ll
总用量 4
drwxr-xr-x. 2 root root   6 8月   3 23:33 data
-rw-r--r--. 1 root root 562 8月   3 23:03 docker-compose.yml
drwxr-xr-x. 2 root root  41 8月   3 23:32 ghost
drwxr-xr-x. 2 root root  42 8月   3 23:32 nginx
[root@localhost ghost]# cd data
[root@localhost data]# ll
总用量 0
[root@localhost data]# docker-compose build
db uses an image, skipping
Building ghost-app
Step 1/4 : FROM ghost
 ---> 998ed7a41488
Step 2/4 : COPY ./config.js /var/lib/ghost/config.js
 ---> Using cache
 ---> 63f0329b75a9
Step 3/4 : EXPOSE 2368
 ---> Using cache
 ---> 9bbe725d825b
Step 4/4 : CMD npm start --production
 ---> Using cache
 ---> 1e1cf3ac94ab
Successfully built 1e1cf3ac94ab
Building nginx
Step 1/3 : FROM nginx
 ---> c82521676580
Step 2/3 : COPY nginx.conf /etc/nginx/nginx.conf
 ---> Using cache
 ---> 2573d7756c50
Step 3/3 : EXPOSE 80
 ---> Using cache
 ---> 7a45a147f375
Successfully built 7a45a147f375
[root@localhost data]# docker-compose up -d
Recreating ghost_db_1
Recreating ghost_ghost-app_1
Recreating ghost_nginx_1
[root@localhost data]# curl localhost