참고사이트 https://docs.mattermost.com/install/installing-mattermost-omnibus.html Install Mattermost Omnibus — Mattermost documentation Mattermost Omnibus packages the free, unlicensed Mattermost Enterprise version of Mattermost, a PostgreSQL database, and when required, NGINX as the application proxy. A custom CLI (mmomni) and ansible recipes link the components together and configures th docs.matte..