The Mattermost online chat system allows you to do a lot before needing to install plugins or integrations. Many additional features are available but need to be enabled in the system console by a user with the system admin role.
This is the case with playing YouTube videos within Mattermost channels and threads. Audio/video media files uploaded directly to Mattermost will show in a pop-up window. URLs to multimedia files will open a new tab. Below we cover:
- Allow Embedding YouTube Videos in Mattermost
- User Settings to Allow Link Preview
As of April 2020, Mattermost doesn’t support embedding Vimeo, SoundCloud, Spotify, Vlare, or Clyp.it media files.
Allow Embedding YouTube Videos in Mattermost
- Log into Mattermost as a system admin
- In the upper-left corner, select your username, then System Console
- Under Site Configuration, select Posts
- Beside Enable Link Previews, select true
- Save changes at the bottom
If you can’t enable link previews in the System Console, you’ll need to edit the raw configuration file.
- Log into SSH as root
- Edit your Mattermost configuration file:
nano +33 /opt/Mattermost/config/config.json
If this isn’t the location of your Mattermost configuration file, you can search for it with the
find / -name config.json | grep mattermost
- Beside “EnableLinkPreviews”, change
- Save your changes
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User Settings to Allow Link Preview
Mattermost users can disable link previews for their individual workflow or network capabilities. This change applies to all channels and teams the user joins.
- Log into Mattermost
- In the upper-left corner, select your username, then Account Settings
- On the left, select Display
- Set Website Link Previews to Off
- Select Save and link previews will disappear
If link previews are disabled, YouTube videos shared in the past may not disappear unless disabled by a system admin.
Is your Mattermost team collaborating on music production? Learn more about how to create a musician’s website with WordPress.