安装环境
系统：centos7
需安装docker-ce-17以上版本，git等。
安装步骤
前往docker官方教程，安装docker-ce，安装完启动
service docker start
安装git
yum install -y git
创建discourse文件夹
mkdir /var/discourse
拉代码
git clone https://github.com/discourse/discourse_docker.git /var/discourse
配置文件（直接copy现成的app.xml）
cd /var/discourse
cp samples/standalone.yml containers/app.yml
vi containers/app.yml
拉取discourse镜像，从daocloud上查，并配置daocloud加速器。
curl -sSL https://get.daocloud.io/daotools/set_mirror.sh | sh -s http://adaa78cc.m.daocloud.io
docker pull discourse/base:2.0.20180306 (用官方的 discourse/base源,下最新的版本，然后更改/var/discourse/launcher中的版本号。)
等待pull结束。
./discourse-setup (完成后即可访问)
./launcher bootstrap app (初始化app)
./launcher app start (重启app)
初始化过程中不能识别github.com需要添加dns。
打开ipv4 forward.
# vi /etc/sysctl.conf
添加如下代码：
net.ipv4.ip_forward=1
重启network服务
# systemctl restart network
查看是否修改成功
# sysctl net.ipv4.ip_forward
如果返回为“net.ipv4.ip_forward = 1”则表示成功了，这时，重启容器即可。
126邮箱，需要登录邮箱设置授权码，并在app.yml里使用授权码登录，不用原来的邮箱密码。
rebuild时需要访问GitHub，部分连接被墙，需要vpn。
发邮件时提示邮件链接被主机封锁，重启网络服务试一下，也许可以解决。
service network restart
推荐一个免费流量的vpn地址：
https://kejibear.xyz/
需要邀请码请回复。
附上app.xml
1 ## this is the all-in-one, standalone Discourse Docker container template 2 ## 3 ## After making changes to this file, you MUST rebuild 4 ## /var/discourse/launcher rebuild app 5 ## 6 ## BE *VERY* CAREFUL WHEN EDITING! 7 ## YAML FILES ARE SUPER SUPER SENSITIVE TO MISTAKES IN WHITESPACE OR ALIGNMENT! 8 ## visit http://www.yamllint.com/ to validate this file as needed 9 10 templates: 11 - "templates/postgres.template.yml" 12 - "templates/redis.template.yml" 13 - "templates/web.template.yml" 14 - "templates/web.ratelimited.template.yml" 15 - "templates/web.china.template.yml" 16 ## Uncomment these two lines if you wish to add Lets Encrypt (https) 17 #- "templates/web.ssl.template.yml" 18 #- "templates/web.letsencrypt.ssl.template.yml" 19 20 21 ## which TCP/IP ports should this container expose? 22 ## If you want Discourse to share a port with another webserver like Apache or nginx, 23 ## see https://meta.discourse.org/t/17247 for details 24 expose: 25 - "80:80" # http 26 - "443:443" # https 27 28 params: 29 db_default_text_search_config: "pg_catalog.english" 30 31 ## Set db_shared_buffers to a max of 25% of the total memory. 32 ## will be set automatically by bootstrap based on detected RAM, or you can override 33 #db_shared_buffers: "256MB" 34 35 ## can improve sorting performance, but adds memory usage per-connection 36 #db_work_mem: "40MB" 37 38 ## Which Git revision should this container use? (default: tests-passed) 39 #version: tests-passed 40 41 env: 42 LANG: en_US.UTF-8 43 # DISCOURSE_DEFAULT_LOCALE: en 44 45 ## How many concurrent web requests are supported? Depends on memory and CPU cores. 46 ## will be set automatically by bootstrap based on detected CPUs, or you can override 47 #UNICORN_WORKERS: 3 48 49 ## TODO: The domain name this Discourse instance will respond to 50 DISCOURSE_HOSTNAME: '192.168.233.128' 51 52 ## Uncomment if you want the container to be started with the same 53 ## hostname (-h option) as specified above (default "$hostname-$config") 54 #DOCKER_USE_HOSTNAME: true 55 56 ## TODO: List of comma delimited emails that will be made admin and developer 57 ## on initial signup example 'user1@example.com,user2@example.com' 58 DISCOURSE_DEVELOPER_EMAILS: '*********44@126.com' 59 60 ## TODO: The SMTP mail server used to validate new accounts and send notifications 61 DISCOURSE_SMTP_ADDRESS: smtp.126.com # required 62 DISCOURSE_SMTP_PORT: 25 # (optional, default 587) 63 DISCOURSE_SMTP_USER_NAME: *********44@126.com # required 64 DISCOURSE_SMTP_PASSWORD: ********* # required, WARNING the char '#' in pw can cause problems! 65 DISCOURSE_SMTP_ENABLE_START_TLS: false # (optional, default true) 66 67 ## If you added the Lets Encrypt template, uncomment below to get a free SSL certificate 68 #LETSENCRYPT_ACCOUNT_EMAIL: me@example.com 69 70 ## The CDN address for this Discourse instance (configured to pull) 71 ## see https://meta.discourse.org/t/14857 for details 72 #DISCOURSE_CDN_URL: //discourse-cdn.example.com 73 74 ## The Docker container is stateless; all data is stored in /shared 75 volumes: 76 - volume: 77 host: /var/discourse/shared/standalone 78 guest: /shared 79 - volume: 80 host: /var/discourse/shared/standalone/log/var-log 81 guest: /var/log 82 83 ## Plugins go here 84 ## see https://meta.discourse.org/t/19157 for details 85 hooks: 86 after_code: 87 - exec: 88 cd: $home/plugins 89 cmd: 90 - git clone https://github.com/discourse/docker_manager.git 91 92 ## Any custom commands to run after building 93 run: 94 - exec: echo "Beginning of custom commands" 95 ## If you want to set the 'From' email address for your first registration, uncomment and change: 96 ## After getting the first signup email, re-comment the line. It only needs to run once. 97 - exec: rails r "SiteSetting.notification_email='*********44@126.com'" 98 - exec: echo "End of custom commands"
2018-03-14 16:41:16
贴个效果图，已个性化处理过css。
