Template: rocketchat-server/domain_name
Type: string
Default: chat.localhost.localdomain
Description: Rocket.Chat's domain name
 Your Rocket.Chat instance need a domain name.
 .
 This is the domain name users will have to type in their browser.

Template: rocketchat-server/tcp_port
Type: string
Default: 3000
Description: Rocket.Chat's TCP port
 Which TCP port to listen on.

Template: rocketchat-server/mongo_url
Type: string
Default: mongodb://localhost:27017/rocketchat?replicaSet=rs01
Description: Rocket.Chat's mongoDB database
 All rocketchat's data is stored in a MongoDB database.
 .
 Specify where that database is stored.

Template: rocketchat-server/mongo_oplog_url
Type: string
Default: mongodb://localhost:27017/local?replicaSet=rs01
Description: Rocket.Chat's mongoDB OPLOG database
 Rocket.Chat uses MongoDB replicaSet to allow redundancy and high availability.
 .
 For this to work, a separated database is needed for "oplog".
 .
 Specify where that database is stored.
