Docker install tigase-xmpp-server
https://hub.docker.com/r/tigase/tigase-xmpp-server
docker pull tigase/tigase-xmpp-server
docker run --name tigase-server -p 8080:8080 -p 5222:5222 tigase/tigase-xmpp-server:latest
Once started, open http://localhost:8080 (from the same machine, or using http://<server_hostname>:8080),
by default those are: 'admin-user' = 'admin' and 'admin-password' = 'tigase'.