Install Plugins in Discourse

:warning: This guide assumes that you have a self-hosted standard installation. We only support the standard method of install here, so these instructions assume you have a standard install.

:warning: This guide only applies to self-hosted Discourse instances. If you are using a managed hosting service, the available plugins are controlled by your hosting provider. For example, on our hosting these specific plugins are available by hosting tier.

In this tutorial, we’ll install the Discourse Spoiler Alert plugin.

  • Copy the plugin’s GitHub or Bitbucket git clone url.

  • Access your container’s app.yml file (present in /var/discourse/containers/)

    cd /var/discourse
    nano containers/app.yml
  • Add the plugin’s repository URL to your container’s app.yml file:

        - exec:
            cd: $home/plugins
              - sudo -E -u discourse git clone
              - sudo -E -u discourse git clone

    Add the plugin’s git clone url just below the line containing git clone

    Follow the existing format of the docker_manager.git line; if it does not contain sudo -E -u discourse then insert - git clone

  • Rebuild the container:

    cd /var/discourse
    ./launcher rebuild app

    That’s it, you’ve successfully installed the Discourse Spoiler Alert plugin on your Discourse instance!

My plugin is hosted in a private repository

You must use an OAuth token to install your plugin:

With the OAuth token, you can install your plugin in the same way as a public repo, and you don’t need to create a SSH key.

    - exec:
        cd: $home/plugins
              - sudo -E -u discourse git clone https://<token>

We strongly advise you to use OAuth tokens for plugins in private repositories. However, if you cannot, see below.

SSH Key Private Install Steps
  - exec: echo "Beginning of custom commands"
  - exec: cd /var/www/discourse && sudo -u discourse bundle install --deployment --without test --without development
  - exec: echo "Host\n\tStrictHostKeyChecking no\n" >> /user/.ssh/config
  - file:
      path: /user/.ssh/id_rsa
      chmod: 600
      contents: |
        -----BEGIN RSA PRIVATE KEY-----
           .... etc ....
        -----END RSA PRIVATE KEY-----
  - file:
      path: /user/.ssh/
      chmod: 600
      contents: ssh-rsa AAAAB3NzaC1yc2EAAAABIwAAAQEAklOUpkDHrfHY17SbrmTIpNLTGK9Tj .... etc .... user@discourse
  - exec: cd $home/plugins && git clone
  - exec: cd $home && sudo -E -u discourse bundle exec rake db:migrate
  - exec: cd $home && rm -fr tmp/cache
  - exec: cd $home &&  sudo -E -u discourse bundle exec rake assets:precompile
  - exec: rm /user/.ssh/id_rsa
  - exec: rm /user/.ssh/

  - exec: echo "End of custom commands"
  • Rebuild the container:
cd /var/discourse
./launcher rebuild app

Your private plugin should be installed on your Discourse instance.

How to remove/uninstall a plugin

To remove a plugin, simply remove the - git clone line from your app.yml file and rebuild your site via

cd /var/discourse
./launcher rebuild app
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Hello everyone. And how to remove the plugin?
I can delete the plugin’s repository URL to your container’s app.yml file?
After then I rebuild the container?

cd /var/discourse
./launcher rebuild app

I have added this to the OP to make it easier to find