Unifi Controller Docker with external MongoDB container

[admin]

Here I describe how you connect the Unifi Controller to external Database.

At first you need the MongoDB Container.

create docker-compose.yml in folder mongodb where you want it:

services:
  mongo:
    image: 'mongo:4.4'
    restart: unless-stopped
    ports:
      - '27017:27017'
    environment:
      MONGO_INITDB_ROOT_USERNAME: test
      MONGO_INITDB_ROOT_PASSWORD: password
      MONGO_INITDB_DATABASE: test
    volumes:
      - mongo-data:/data/db

volumes:
  mongo-data:

Then you need to create User for Unifi Controller like this:

use unifi
db.createUser(
  {
    user: "unifi",
    pwd: "password",  // or cleartext password
    roles: [
       { role: "readWrite", db:"admin" } ,
       { role: "readWrite", db:"unifi" } ,
       { role: "readWrite", db:"unifi_stat" }
    ]
  }
)

Now we can another folder called unifi and also create the docker-compose.yml

version: '2.3'
services:
  controller:
    image: "jacobalberty/unifi:latest"
    container_name: unifi_controller
    init: true
    restart: always
    volumes:
      - dir:/unifi
      - data:/unifi/data
      - log:/unifi/log
      - cert:/unifi/cert
      - init:/unifi/init.d
      - run:/var/run/unifi
      # Mount local folder for backups and autobackups
      - ./backup:/unifi/data/backup
    user: unifi
    sysctls:
      net.ipv4.ip_unprivileged_port_start: 0
    environment:
      # DB_URI: mongodb://mongo/unifi
      #STATDB_URI: mongodb://mongo/unifi_stat
      DB_URI: mongodb://unifi:password@89.58.43.67:27017/unifi?authSource=unifi
      STATDB_URI: mongodb://unifi:password@89.58.43.67:27017/unifi_stat?authSource=unifi
      DB_NAME: unifi
    ports:
      - "3478:3478/udp" # STUN
      - "5514:5514/tcp" # Remote Logging 
      - "6789:6789/tcp" # Speed test
      - "8080:8080/tcp" # Device/ controller comm.
      - "8443:8443/tcp" # Controller GUI/API as seen in a web browser
      - "8880:8880/tcp" # HTTP portal redirection
      - "8843:8843/tcp" # HTTPS portal redirection
      - "10001:10001/udp" # AP discovery
  logs:
    image: bash
    container_name: unifi_logs
    depends_on:
      - controller
    command: bash -c 'tail -F /unifi/log/*.log'
    restart: always
    volumes:
      - log:/unifi/log

volumes:
  data:
  log:
  cert:
  init:
  dir:
  run: