docker-compose static IP example

docker-compose.yaml

version: '3'
networks:
  mynetwork:
    ipam:
      config:
        - subnet: 172.20.0.0/24
services:
  nodered1:
    image: nodered/node-red-docker
    ports:
      - "1880:1880"
    restart: always
    environment:
      - TZ
      - IP_BROKER=mqtt
      - DOCKER=true
      - PORT=1880
    hostname: nodered1
    networks:
      mynetwork:
        ipv4_address: 172.20.0.6
  nodered2:
    image: nodered/node-red-docker
    ports:
      - "1881:1880"
    restart: always
    environment:
      - TZ
      - IP_BROKER=mqtt
      - DOCKER=true
      - PORT=1880
    hostname: nodered2
    networks:
      mynetwork:
        ipv4_address: 172.20.0.7

This works great. It is a good way to use Docker Compose for Static/fixed IP . An alternative option would be to use container names instead of IP Addresses.

My container network has Nginx Reverse Proxy Manager with IP address 10, Portainer Docker Compose with IP Address 11, and finally WorPress MYSQL Docker Compose with IP Address 9 and 8 respectively.