502 Bad Gateway using ubuntu, ansible, lxc, nginx and mattermost

[amy.blais]

Hi @jcurt11n,

As a first step, some of these earlier threads might help:

• [SOLVED] Mattermost server not starting after upgrade (4.5.0 to 4.6.1)
• [SOLVED] Start MM via systemd ubuntu 16.04
• https://github.com/mattermost/mattermost-server/issues/1953
• [SOLVED] NGINX Mattermost: 502 Bad gateway
• Mattermost stops working 502 Gateway error - backups also will not work