version: '3'

services:
  redis-instance:
    image: redis:latest
    command: redis-server
    ports:
      - 6379:6379
  db:
    image: postgres-alpine
    restart: always
    environment:
      POSTGRES_USER: expr
      POSTGRES_PASSWORD: exprpassword
      POSTGRES_DB: exprdb_test
    ports:
      - 5432:5432