Multisite Dockerfile issues

Installation
1

I tried to apply it by reading the guides. This is how the app.yml file happened. There may be mistakes. I’m just using Docker. I want to do; To be able to open 2 sites on the virtual server. 1. site name: dursuncan.com, 2. site name: forum.tekno-byte.com
How should I edit the app.yml file?

   # ./launcher rebuild app

    WARNING: We are about to start downloading the Discourse base image
    This process may take anywhere between a few minutes to an hour, depending on your network speed

    Please be patient

    2.0.20210415-1332: Pulling from discourse/base
    Digest: sha256:b3b1eb6d859d683f26ad2a02e0efabcd502a63ab07b8211e4c425aa7ba7dd3a4
    Status: Downloaded newer image for discourse/base:2.0.20210415-1332
    docker.io/discourse/base:2.0.20210415-1332
    Ensuring launcher is up to date
    Fetching origin
    Launcher is up-to-date
    Stopping old container
    + /usr/bin/docker stop -t 60 app
    app
    cd /pups && git pull && git checkout v1.0.3 && /pups/bin/pups --stdin
    docker: Error response from daemon: could not get container for postgres: No such container: postgres.
    See 'docker run --help'.
    cat: cids/app_bootstrap.cid: No such file or directory
    "docker rm" requires at least 1 argument.
    See 'docker rm --help'.

    Usage:  docker rm [OPTIONS] CONTAINER [CONTAINER...]

    Remove one or more containers
    rm: cannot remove 'cids/app_bootstrap.cid': No such file or directory
    ** FAILED TO BOOTSTRAP ** please scroll up and look for earlier error messages, there may be more than one.
    ./discourse-doctor may help diagnose the problem.

    ## 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"
      - "templates/cron.template.yml"
    ## Uncomment these two lines if you wish to add Lets Encrypt (https)
      - "templates/sshd.template.yml"  
      - "templates/web.ssl.template.yml"
      - "templates/web.letsencrypt.ssl.template.yml"

    ## 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"
       - "80:80"
       - "2222:22"
       - "443:443"
    #  - "80:80"   # http
    #  - "443:443" # https

    links:
       - link:
           name: postgres
           alias: postgres

    #docker_args:
    #   - "--net chain"

    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: "256MB"

      ## 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
      # 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: 3

      ## TODO: The domain name this Discourse instance will respond to
      ## Required. Discourse will not work with a bare IP number.
      DISCOURSE_HOSTNAME: 'dursuncan.com'
      # VIRTUAL_HOST: 'dursuncan.com,www.dursuncan.com'
      # LETSENCRYPT_HOST: 'dursuncan.com,www.dursuncan.com'
      # LETSENCRYPT_EMAIL: 'merhaba@dursuncan.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: 'poyrazdursuncan@gmail.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: smtp.eu.mailgun.org
      DISCOURSE_SMTP_PORT: 587
      DISCOURSE_SMTP_USER_NAME: postmaster@mg.dursuncan.com
      DISCOURSE_SMTP_PASSWORD: '***'
      DISCOURSE_SMTP_ENABLE_START_TLS: true
      DISCOURSE_SMTP_DOMAIN: dursuncan.com
      #DISCOURSE_NOTIFICATION_EMAIL: noreply@discourse.example.com    # (address to send notifications from)

      ## If you added the Lets Encrypt template, uncomment below to get a free SSL certificate
      LETSENCRYPT_ACCOUNT_EMAIL: 'merhaba@dursuncan.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

      DISCOURSE_DB_HOST: some-host
      DISCOURSE_DB_NAME: "{{config}}_discourse"

    labels:
      monitor: "true"
      app_name: "{{config}}_discourse"

    ## 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_postgres:
         - exec: sudo -u postgres createdb b_discourse || exit 0
         - exec:
              stdin: |
                grant all privileges on database b_discourse to discourse;
              cmd: sudo -u postgres psql b_discourse
              raise_on_fail: false

         - exec: /bin/bash -c 'sudo -u postgres psql b_discourse <<< "alter schema public owner to discourse;"'
         - exec: /bin/bash -c 'sudo -u postgres psql b_discourse <<< "create extension if not exists hstore;"'
         - exec: /bin/bash -c 'sudo -u postgres psql b_discourse <<< "create extension if not exists pg_trgm;"'

      after_code:
        - exec:
            cd: $home/plugins
            cmd:
              - mkdir -p plugins
              - git clone https://github.com/discourse/docker_manager.git
      before_bundle_exec:
        - file:
            path: $home/config/multisite.yml
            contents: |
             secondsite:
               adapter: postgresql
               database: b_discourse
               pool: 25
               timeout: 5000
               db_id: 2
               host_names:
                 - b.discourse.example.com

      after_bundle_exec:
        - exec: cd /var/discourse && sudo -E -u discourse bundle exec rake multisite:migrate

    ## Any custom commands to run after building
    run:
      - exec:
            cd: var/discourse
            hook: my_hook
            cmd:
              - echo 1
      ## 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='info@unconfigured.discourse.org'"
      - exec: echo "End of custom commands"
1 Like
2

You need two such containers and a reverse proxy in front. Copy app.yml to app2.yml and edit it. Running other websites on the same machine as Discourse or perhaps Multisite Configuration with Let’s Encrypt and no reverse proxy if they can have the same plugins and mail server.

4 Likes
3

I used the 1st method on lemp servers. Is it possible to make this method via docker? Does installing a nginx server outside of docker affect performance?

1 Like
4

Yes. You’ll have a docker image for each forum.

The external reverse proxy can be a docker container too.

Not much.

1 Like
5

I installed Nginx. I made my settings. I edited the app.yml file. rebuild process fails. What could be the problem?

./launcher rebuild app
Ensuring launcher is up to date
Fetching origin
Launcher is up-to-date
cd /pups && git pull && git checkout v1.0.3 && /pups/bin/pups --stdin
docker: invalid reference format: repository name must be lowercase.
See 'docker run --help'.
cat: cids/app_bootstrap.cid: No such file or directory
"docker rm" requires at least 1 argument.
See 'docker rm --help'.

Usage:  docker rm [OPTIONS] CONTAINER [CONTAINER...]

Remove one or more containers
rm: cannot remove 'cids/app_bootstrap.cid': No such file or directory
** FAILED TO BOOTSTRAP ** please scroll up and look for earlier error messages, there may be more than one.
./discourse-doctor may help diagnose the problem.
root@dursun:/var/discourse# docker image rm 8e23824acd3c
Error: No such image: 8e23824acd3c

app.yml

## 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

# base templates used; can cut down to include less functionality per container templates:
  #- "templates/sshd.template.yml"
  #- "templates/web.socketed.template.yml"
  - "templates/postgres.template.yml"
  - "templates/redis.template.yml"
  - "templates/web.template.yml"
  - "templates/web.ratelimited.template.yml"
  - "templates/web.socketed.template.yml"

## 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
# which ports to expose?
# expose: comment out entire section by putting a # in front of each line
# - "80:80"   # http
# - "443:443" # https

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: "256MB"

  ## 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
  # 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: 3

  ## TODO: The domain name this Discourse instance will respond to
  ## Required. Discourse will not work with a bare IP number.
  DISCOURSE_HOSTNAME: 'dursuncan.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: 'poyrazdursuncan@gmail.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: smtp.eu.mailgun.org
  DISCOURSE_SMTP_PORT: 587
  DISCOURSE_SMTP_USER_NAME: postmaster@mg.dursuncan.com
  DISCOURSE_SMTP_PASSWORD: '---------'
  DISCOURSE_SMTP_ENABLE_START_TLS: true
  DISCOURSE_SMTP_DOMAIN: dursuncan.com
  #DISCOURSE_NOTIFICATION_EMAIL: noreply@discourse.example.com    # (address to send notifications from)

  ## If you added the Lets Encrypt template, uncomment below to get a free SSL certificate
  LETSENCRYPT_ACCOUNT_EMAIL: 'merhaba@dursuncan.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

## 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='info@unconfigured.discourse.org'"
  - exec: echo "End of custom commands"
1 Like