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私有云搭建 Discourse 论坛系统

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1. 前期准备

服务器/域名/SMTP邮箱/

登录到系统:

ssh discourse@192.168.0.175 sudo apt update sudo apt upgrade -y

2. 准备部署文件

sudo -s
mkdir /var/discourse # 创建/var/discourse目录，所有与Discourse相关的文件都在此目录下。
git clone https://github.com/discourse/discourse_docker.git /var/discourse #将官方Discourse Docker Image复制到/var/discourse cd /var/discourse ls

3. 配置和引导Discourse
从这里，您可以启动安装脚本。

cd /var/discourse

./discourse-setup

您将被问到以下问题：

Discourse的主机名？

输入您要用于Discourse的主机名，例如，discourse.test.com，其中discourse.test.com可以用您的域名替换。您需要使用一个域名，因为发送电子邮件时不能用IP地址。

管理员帐户的电子邮件地址？选择要用于Discourse管理员帐户的电子邮件地址。这个电子邮件地址可以与您的Discourse域名完全无关，可以是您的电子邮件地址。

请注意，当第一个用户注册该电子邮件时，此电子邮件地址将默认成为Discourse管理员。稍后当您从其网络控制面板设置Discourse时，您还需要此电子邮件地址。

Hostname for your Discourse? [discourse.example.com]: Email address for admin account(s)? [me@example.com,you@example.com]: SMTP server address? [smtp.example.com]: SMTP port? [587]: SMTP user name? [user@example.com]: SMTP password? [pa$$word]: Let’s Encrypt account email? (ENTER to skip) [me@example.com]:

这里需要您填写您的邮箱相关信息，您可以参考您邮箱的相关设置。

最后，系统会要求您确认刚刚输入的所有设置。确认设置后，脚本将生成一个调用的配置文件app.yml，然后启动引导。

注意：如果您需要在引导后更改或修复这些设置，请编辑/containers/app.yml文件并运行./launcher rebuild app否则，您的更改将不会生效。

引导需要2-8分钟，之后将会运行。现在，让我们继续创建一个管理员帐户。

4. 注册管理员帐户
在您的浏览器中访问您的Discourse域名，你将看到下面的页面。

image.png

如果您收到502 Bad Gateway错误，请等一两分钟然后刷新重试，Discourse可能尚未完成安装。

页面加载时，单击蓝色注册按钮。您将看到一个名为“注册管理员帐户”的页面，其中包含以下字段：

电子邮件：从下拉菜单中选择您之前提供的电子邮件地址。

用户名：选择用户名。

密码：设置一个强密码。

然后单击表单上的蓝色“注册”按钮提交。您将看到一个对话框，显示确认您的电子邮件。检查收件箱中的确认电子邮件。如果您没有收到，请尝试单击“重新发送激活电子邮件”按钮。

注册管理员帐户后，安装向导将启动并引导您完成Discourse的基本配置。您现在可以浏览它或单击“稍后”跳过。

有时候由于邮件设置问题无法收到注册邮件可以如下操作：

后台创建admin账户

1.在cd /var/discourse 下执行：

./launcher enter app #进入容器 rake admin:create Email: duanshuaixing@gmail.com Password: Repeat password: Do you want to grant Admin privileges to this account? (Y/n) Y

创建成功，请记住设置的密码和邮箱，然后再次打开论坛网址，发现已经进入了论坛首页

5. 修改配置文件

## this is the all-in-one, standalone Discourse Docker container template
##
## After making changes to this file, you MUST rebuild
## /var/discourse/launcher rebuild app
##
## BE *VERY* CAREFUL WHEN EDITING!
## YAML FILES ARE SUPER SUPER SENSITIVE TO MISTAKES IN WHITESPACE OR ALIGNMENT!
## visit http://www.yamllint.com/ to validate this file as needed
 
templates:
  - "templates/postgres.template.yml"
  - "templates/redis.template.yml"
  - "templates/web.template.yml"
  - "templates/web.ratelimited.template.yml"
## Uncomment these two lines if you wish to add Lets Encrypt (https)
#  - "templates/web.ssl.template.yml"   ## 没有开启 支持https
#  - "templates/web.letsencrypt.ssl.template.yml"  ## 没有开启 支持https
## which TCP/IP ports should this container expose?
## If you want Discourse to share a port with another webserver like Apache or nginx,
## see https://meta.discourse.org/t/17247 for details
expose:
  - "80:80"   # http
  - "443:443" # https
  - "25:25"   # SMTP
params:
  db_default_text_search_config: "pg_catalog.english"
  ## Set db_shared_buffers to a max of 25% of the total memory.
  ## will be set automatically by bootstrap based on detected RAM, or you can override
  db_shared_buffers: "4096MB"
  ## can improve sorting performance, but adds memory usage per-connection
  #db_work_mem: "40MB"
  ## Which Git revision should this container use? (default: tests-passed)
  #version: tests-passed
 
env:
  LC_ALL: en_US.UTF-8
  LANG: en_US.UTF-8
  LANGUAGE: en_US.UTF-8
  EMBER_CLI_PROD_ASSETS: 1
  # DISCOURSE_DEFAULT_LOCALE: en
  ## How many concurrent web requests are supported? Depends on memory and CPU cores.
  ## will be set automatically by bootstrap based on detected CPUs, or you can override
  UNICORN_WORKERS: 8
  ## TODO: The domain name this Discourse instance will respond to
  ## Required. Discourse will not work with a bare IP number.
  DISCOURSE_HOSTNAME: discourse.test.com
  ## Uncomment if you want the container to be started with the same
  ## hostname (-h option) as specified above (default "$hostname-$config")
  #DOCKER_USE_HOSTNAME: true
  ## TODO: List of comma delimited emails that will be made admin and developer
  ## on initial signup example 'user1@example.com,user2@example.com'
  DISCOURSE_DEVELOPER_EMAILS: 'Discourse@test.com'
  ## TODO: The SMTP mail server used to validate new accounts and send notifications
  # SMTP ADDRESS, username, and password are required
  # WARNING the char '#' in SMTP password can cause problems!
  DISCOURSE_SMTP_ADDRESS: mail.test.com
  DISCOURSE_SMTP_PORT: 25
  # DISCOURSE_SMTP_USER_NAME:
  # DISCOURSE_SMTP_PASSWORD:
  #DISCOURSE_SMTP_ENABLE_START_TLS: true           # (optional, default true)
  DISCOURSE_SMTP_ENABLE_START_TLS: false         # (optional, default true)
  #DISCOURSE_NOTIFICATION_EMAIL: noreply@discourse.test.com
  DISCOURSE_NOTIFICATION_EMAIL: noreply@test.com
  #  DISCOURSE_SMTP_OPENSSL_VERIFY_MODE: none
  # DISCOURSE_SMTP_AUTHENTICATION: login
 
  ## If you added the Lets Encrypt template, uncomment below to get a free SSL certificate
  LETSENCRYPT_ACCOUNT_EMAIL: me@example.com
  ## The http or https CDN address for this Discourse instance (configured to pull)
  ## see https://meta.discourse.org/t/14857 for details
  #DISCOURSE_CDN_URL: https://discourse-cdn.example.com
  ## The maxmind geolocation IP address key for IP address lookup
  ## see https://meta.discourse.org/t/-/137387/23 for details
  #DISCOURSE_MAXMIND_LICENSE_KEY: 1234567890123456
## The Docker container is stateless; all data is stored in /shared
volumes:
  - volume:
      host: /var/discourse/shared/standalone
      guest: /shared
  - volume:
      host: /var/discourse/shared/standalone/log/var-log
      guest: /var/log
## Plugins go here
## see https://meta.discourse.org/t/19157 for details
hooks:
  after_code:
    - exec:
        cd: $home/plugins
        cmd:
          - git clone https://github.com/discourse/docker_manager.git
          - git clone https://github.com/jonmbake/discourse-ldap-auth.git
          - git clone https://github.com/discourse/discourse-solved.git
          - git clone https://github.com/discourse/discourse-math.git
          - git clone https://github.com/discourse/discourse-voting.git
          - git clone https://github.com/discourse/discourse-push-notifications.git
          - git clone https://github.com/discourse/discourse-spoiler-alert.git
          - git clone https://github.com/discourse/discourse-graphviz.git
          - git clone https://github.com/unfoldingWord-dev/discourse-mermaid.git
          - git clone https://github.com/discourse/discourse-checklist.git
          - git clone https://github.com/discourse/discourse-assign.git
          - git clone https://github.com/discourse/discourse-linkify-words.git
          - git clone https://github.com/communiteq/discourse-suppress-category-from-latest.git
          - git clone https://github.com/discourse/discourse-prometheus.git
          - git clone https://github.com/discourse/discourse-docs.git
          - git clone https://github.com/discourse/discourse-docs-card-filter.git
          - git clone https://github.com/discourse/discourse-translator.git
          
## Any custom commands to run after building
run:
  - exec: echo "Beginning of custom commands"

  ## If you want to set the 'From' email address for your first registration, uncomment and change:
  ## After getting the first signup email, re-comment the line. It only needs to run once.
  #  - exec: rails r "SiteSetting.notification_email='noreply@discuss.streamcomputing.com
  - exec:
      cmd:
        - sed -i 's/MinProtocol = TLSv1.2/\#MinProtocol = TLSv1.2/' /etc/ssl/openssl.cnf    # 这个注释TLS 配置， 否则SMTP邮件协议不match，发不了邮件
        - sed -i 's/CipherString = DEFAULT\@SECLEVEL=2/\#CipherString = DEFAULT\@SECLEVEL=2/' /etc/ssl/openssl.cnf#这个注释TLS 配置
 
  - exec: echo "End of custom commands"

更改或修复这些设置，请编辑 /var/discourse/containers/app.yml文件并运行./launcher rebuild app否则，您的更改将不会生效。

6. 支持https
修改app.yml

/var/discourse/containers/app.yml内修改打开这个注释 - “templates/web.ssl.template.yml”

生成证书并导入证书
生成证书参考Certbot自签Let’s Encrypt证书

mkdir -p /var/discourse/shared/standalone/ssl/ cp ssl.crt /var/discourse/shared/standalone/ssl/ssl.crt cp ssl.key /var/discourse/shared/standalone/ssl/ssl.key

重建app

./launcher rebuild app

开启强制httpsimage.png

重启应用

./launcher restart app

  1. 安装插件

./launcher enter app cd /var/www/discourse/ rake plugin:install repo=https://github.com/unfoldingWord-dev/discourse-mermaid.git rake plugin:install repo=https://github.com/albertchan/discourse-aliyun-oss.git rake assets:precompile exit ./launcher restart app

  1. 备份和恢复
    备份image.png

恢复，下载的备份导入到另外一个环境

mkdir -p /var/discourse/shared/standalone/backups/default scp root@192.168.0.175:/var/discourse/shared/standalone/backups/discourse-2021-04-21-151816-v20210328233843.tar.gz /var/discourse/shared/standalone/backups/default

cd /var/discourse ./launcher enter app discourse enable_restore discourse restore discourse-2021-04-21-151816-v20210328233843.tar.gz

9. 卸载

cd /var/discourse ./launcher destroy app rm -rf /var/discourse/

10. FAQ

构建项目git clone慢可以通过给容器配置vpn或者代理方式解决，建议sshuttle 方式，比较方便
docker配置代理

mkdir ~/.docker cat ~/.docker/config.json { "proxies": { "default": { "httpProxy": "http://47.57.14.232:8080", "httpsProxy": "http://47.57.14.232:8443", "noProxy": "127.0.0.1,localhost,172.17.0.0/16,192.168.0.0/24,gems.ruby-china.com } } }

systemctl daemon-reload systemctl restart docker

cd /var/discourse ./launcher bootstrap app ./launcher start app

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