docker-compose.yml

version: "3.6"
services:
  testdb:
    # We're using postgis so that we can test the creation of the postgis
    # extension, which requires superuser extensions.
    # 
    # To use the equivalent in plain postgres, use `postgres:15`
    image: postgis/postgis:15-master
    environment:
      POSTGRES_PASSWORD: password
    restart: unless-stopped
    volumes:
      # Uses a tmpfs volume to make tests extremely fast. The data in test
      # databases is not persisted across restarts, nor does it need to be.
      - type: tmpfs
        target: /var/lib/postgresql/data/
    command:
      - "postgres"
      - "-c"
      - "fsync=off"
      - "-c"
      - "shared_buffers=1024MB"
      - "-c"
      - "synchronous_commit=off"
      - "-c"
      - "full_page_writes=off"
      - "-c"
      - "log_statement=all"
      - "-c"
      - "max_connections=1000"
    ports:
      - "5433:5432"