version: '3'

services:
  postgres:
    image: postgres:12
    environment:
      POSTGRES_DB: dna_analyser
      POSTGRES_USER: ${POSTGRES_USER:-developer}
      POSTGRES_PASSWORD: ${POSTGRES_PASSWORD:-password}
      PGDATA: /data/postgres
    volumes:
      - postgres:/data/postgres
    ports:
      - 5432:5432

volumes:
  postgres:
  pgadmin:
