默认应用无法重新构建

支持 安装
1

嘿，我使用这份指南在 Linux 机器上设置了默认的 Discourse。过程非常顺利，网站也完美启动。

我决定允许用户通过 Facebook 登录，因此我按照上述链接中引用的 Facebook 说明进行了操作（我本想再次提供链接，但新用户似乎只能发布两个链接）。结果未能成功，但网站仍然正常运行（我不记得尝试通过 Facebook 登录时遇到的具体错误）。

在浏览 Facebook 文档时，我看到需要启用 HTTPS，于是开始按照这些文档进行操作。一切顺利，直到执行 ./launcher rebuild app 时出现了 PostgreSQL 错误。这让我感到意外，因为据我所知，我并未对 PostgreSQL 配置做任何修改。第一个错误如下：

INFO -- : > cd /var/www/discourse && su discourse -c 'bundle exec rake db:migrate'
rake aborted!
PG::ConnectionBad: could not connect to server: No such file or directory
	Is the server running locally and accepting
	connections on Unix domain socket "/var/run/postgresql/.s.PGSQL.5432"?

我没有停止 PostgreSQL 服务，但尝试运行 service start postgres 时，系统提示该服务未安装。因此我推测它是以我习惯之外的其他方式自动安装的。请问我可能哪里做错了？谢谢。

我的 container/app.yml 内容如下：

templates:
  - "templates/web.template.yml"
  - "templates/web.ssl.template.yml"
  - "templates/web.letsencrypt.ssl.template.yml"
  - "templates/postgres.template.yml"
  - "templates/redis.template.yml"
  - "templates/web.template.yml"
  - "templates/web.ratelimited.template.yml"

expose:
  - "80:80"   # http
  - "443:443" # https

params:
  db_default_text_search_config: "pg_catalog.english"

  db_shared_buffers: "128MB"

env:
  LANG: en_US.UTF-8
  LETSENCRYPT_ACCOUNT_EMAIL: 'myotheremail@gmail.com'
  UNICORN_WORKERS: 2

  DISCOURSE_HOSTNAME: mysite.com

  DISCOURSE_DEVELOPER_EMAILS: 'myemail@gmail.com'

  DISCOURSE_SMTP_ADDRESS: smtp.gmail.com
  DISCOURSE_SMTP_PORT: 587
  DISCOURSE_SMTP_USER_NAME: myemail@gmail.com
  DISCOURSE_SMTP_PASSWORD: "myPa$$word"

  ## 此 Discourse 实例的 HTTP 或 HTTPS CDN 地址（配置为拉取）
  ## 详见 https://meta.discourse.org/t/14857
  #DISCOURSE_CDN_URL: https://discourse-cdn.example.com

volumes:
  - volume:
      host: /var/discourse/shared/standalone
      guest: /shared
  - volume:
      host: /var/discourse/shared/standalone/log/var-log
      guest: /var/log

hooks:
  after_code:
    - exec:
        cd: $home/plugins
        cmd:
          - git clone https://github.com/discourse/docker_manager.git

run:
  - exec: echo "Beginning of custom commands"
  - exec: echo "End of custom commands"
2

If you were following the official guide, HTTPS should have been set up automatically. Note at the very top of the guide you linked to:

3

Yes, that’s correct. And those are the instructions I followed. I did move to the facebook login connect guide first, but I am doubtful that that’s the issue. I went through the guide that you posted, and moved on to https, and now I’m having the issues listed above.

4

Ok, let’s regroup for a moment.

These two guides are all you should need to follow:

This one you do not want to follow since HTTPS is enabled by default:

I would start fresh if possible and then report back any errors you receive when trying to log in with Facebook.

5

Ok, well when I finished the first guide, the site was up, but it wasn’t https. I assumed it wouldn’t be https until I enabled it. I’ll go back through the instructions, maybe I didn’t understand something, then I’ll report back.

6

Ok, I got the app back up, but I don’t see anywhere in these instructions that could possibly setup the site as https as there’s nowhere that involves a cert other than the Let’s Encrypt method at the bottom. What am I missing? Can you point me to where exactly in those instructions it would set up https?

7

It’s all done behind the scenes. When you enter your email in the last configuration step:

01%20PM
Screen Shot 2019-08-23 at 6.07.01 PM.png1782×388 50.1 KB

8

I bet I hit ENTER to skip and didn’t even realize it. If that’s the case, would it just be best to re-run the config, or go through the let’s encrypt instructions. Keeping in mind, I have a little bit of content on the site right now and I don’t want it wiped. (Thanks again for your help)

9

Just run discourse-setup again and provide an address for let’s encrypt.

11

What a fantastic feature. I feel so ridiculous for missing that the first time around. Thanks to both of you, and the team for implementing that.

12

Is there some way to change the words that would have made you understood it sooner?

13

I think so. I’m pretty experienced working on servers, but I haven’t been very active since Let’s Encrypt came out, so I just assumed that there would be a section on getting a cert in the documentation if that was something that would work out of the box. Since there wasn’t, I assumed I would have to do it in another step. There’s nothing on that page that evens mentions Let’s Encrypt except for the output from the ./disource-setup command. Maybe mention under the Edit Discourse Configuration (before the command) mention that if you want https, then you’ll have to put something in the Let’s Encrypt field. I knew to look on that page for https, but there were not https string matches (when I ctrl+f), so I assumed it wasn’t there. I searched for “https” and “cert”, and since it wasn’t there, I assumed it was separate.

And honestly, if I worked on website hosting more frequently, I probably would have seen Let’s Encrypt and immediately known what was going on. Maybe if there was a “what you’ll need” section, that included an email associated with Let’s Encrypt?

I don’t want this to come off as insulting, the documentation is great, and it was human error (my human error) that caused my issue.

14

Fair enough. What words?

15

I can’t tell if you couldn’t see the rest of my response, but maybe I’ll just put in a PR with the fixes I think would be good. But really just mentioning that the docs have certs handled would be good.

16

Ah,! So the install cloud doc doesn’t make it clear? That sounds right.

I’ll have a look at the language at discourse-setup to see if it should make it clearer just what let’s encrypt is. It’s true that it shouldn’t assume that the user knows.

Thanks