Dockerized Primary/Replica Redis

docker-compose.yml

version: "3.9"
services:
    redis-primary:
      container_name: redis-primary
      image: redis:latest
      command: redis-server --port 6379
      ports:
        - "6379:6379"
    redis-replica:
      container_name: redis-replica
      image: redis:latest
      command: redis-server --slaveof redis-primary 6379
      ports:
        - "6380:6379"

Run this by typing docker compose-up -d on the same level as the docker-compose.yml resides