services: pg: image: postgres:latest environment: POSTGRES_USER: '${POSTGRES_USER}' POSTGRES_DB: '${POSTGRES_DB}' POSTGRES_PASSWORD: '${POSTGRES_PASSWORD}' ports: - '45432:5432' volumes: - "./db:/var/lib/postgresql/data" server: environment: CONNECTIONSTRINGS__SPACERACE: "Server=pg;Port=5432;Database=${POSTGRES_DB};User Id=${POSTGRES_USER};Password=${POSTGRES_PASSWORD}" build: context: . dockerfile: ./Dockerfile