Installing Rocketchat with Docker

1. Create directory mkdir rocketchat
2. cd rocketchat
3. sudo nano compose.yml
   

4. volumes:
     mongodb_data: { driver: local }
   
   services:
     rocketchat:
       image: registry.rocket.chat/rocketchat/rocket.chat:latest
       restart: always
       labels:
         traefik.enable: "true"
         traefik.http.routers.rocketchat.rule: Host(`${DOMAIN:-}`)
         traefik.http.routers.rocketchat.tls: "true"
         traefik.http.routers.rocketchat.entrypoints: https
         traefik.http.routers.rocketchat.tls.certresolver: le
       environment:
         MONGO_URL: "${MONGO_URL:-\
           mongodb://${MONGODB_ADVERTISED_HOSTNAME:-mongodb}:${MONGODB_INITIAL_PRIMARY_PORT_NUMBER:-27017}/\
           ${MONGODB_DATABASE:-rocketchat}?replicaSet=${MONGODB_REPLICA_SET_NAME:-rs0}}"
         MONGO_OPLOG_URL: "${MONGO_OPLOG_URL:\
           -mongodb://${MONGODB_ADVERTISED_HOSTNAME:-mongodb}:${MONGODB_INITIAL_PRIMARY_PORT_NUMBER:-27017}/\
           local?replicaSet=${MONGODB_REPLICA_SET_NAME:-rs0}}"
         ROOT_URL: ${ROOT_URL:-http://localhost:${HOST_PORT:-3000}}
         PORT: ${PORT:-3000}
         DEPLOY_METHOD: docker
         DEPLOY_PLATFORM: ${DEPLOY_PLATFORM:-}
         REG_TOKEN: ${REG_TOKEN:-}
       depends_on:
         - mongodb
       expose:
         - ${PORT:-3000}
       ports:
         - "${BIND_IP:-0.0.0.0}:${HOST_PORT:-3000}:${PORT:-3000}"
   
     mongodb:
       image: docker.io/bitnami/mongodb:${MONGODB_VERSION:-5.0}
       restart: always
       volumes:
         - mongodb_data:/bitnami/mongodb
       environment:
         MONGODB_REPLICA_SET_MODE: primary
         MONGODB_REPLICA_SET_NAME: ${MONGODB_REPLICA_SET_NAME:-rs0}
         MONGODB_PORT_NUMBER: ${MONGODB_PORT_NUMBER:-27017}
         MONGODB_INITIAL_PRIMARY_HOST: ${MONGODB_INITIAL_PRIMARY_HOST:-mongodb}
         MONGODB_INITIAL_PRIMARY_PORT_NUMBER: ${MONGODB_INITIAL_PRIMARY_PORT_NUMBER:-27017}
         MONGODB_ADVERTISED_HOSTNAME: ${MONGODB_ADVERTISED_HOSTNAME:-mongodb}
         MONGODB_ENABLE_JOURNAL: ${MONGODB_ENABLE_JOURNAL:-true}
         ALLOW_EMPTY_PASSWORD: ${ALLOW_EMPTY_PASSWORD:-yes}

5. CTR + X --> 'y' --> "Enter"
6. sudo nano .env

7. ### Rocket.Chat configuration
   
   # Rocket.Chat version
   # see:- https://github.com/RocketChat/Rocket.Chat/releases
   #RELEASE=
   # MongoDB endpoint (include ?replicaSet= parameter)
   #MONGO_URL=
   # MongoDB endpoint to the local database
   #MONGO_OPLOG_URL=
   # IP to bind the process to
   #BIND_IP=
   # URL used to access your Rocket.Chat instance
   #ROOT_URL=
   # Port Rocket.Chat runs on (in-container)
   #PORT=
   # Port on the host to bind to
   #HOST_PORT=
   
   ### MongoDB configuration
   # MongoDB version/image tag
   #MONGODB_VERSION=
   # See:- https://hub.docker.com/r/bitnami/mongodb
   
   ### Traefik config (if enabled)
   # Traefik version/image tag
   #TRAEFIK_RELEASE=
   # Domain for https (change ROOT_URL & BIND_IP accordingly)
   #DOMAIN=
   # Email for certificate notifications
   #LETSENCRYPT_EMAIL=
   
   #########

8. CTR + X --> 'y' --> "Enter"
9. docker-compose up -d
   
10. Go to 127.0.0.1:3000 in a browser