I used to deploy different services/apps on different domains. And recently I decided to move those under my main site henrywithu.com, as subdomains, for the purpose of SEO.
0. Before You Start
If you are going to change your.old.domain to your.new.domain, and your.new.domain is originally hosted by Cloudflare, be sure to disable Rocket Loader, and then purge cache.
Also, for any unexpected issue, you might want to disable CDN during the process.
1. Nextcloud (Snap Installation)
sudo snap run nextcloud.occ config:system:set trusted_domains 1 --value=your.new.domain sudo snap restart nextcloud sudo nextcloud.enable-https lets-encrypt
2. Nextcloud (Docker Installation)
Update Nginx files and obtain new cert.
Set your new domain as trusted domains
...... 'trusted_domains' => array ( 0 => 'your.new.domain', ), ......
3. Rocket.Chat (Snap Installation)
Replace the old domain
sudo systemctl restart snap.rocketchat-server.rocketchat-caddy
4. Discourse (Docker Installation)
Set DISCOURSE_HOSTNAME value to your new domain
cd /var/discourse/ ./launcher rebuild app
Note: Actually you can run
./discourse-setup as an easier way(according to the official document), but it didn’t work for me.
Update Nginx config files.