version: '3' services: frontend: build: . image: registry.gitlab.com/sahkoinsinoorikilta/vtmk/web2.0-frontend ports: - "3000:3000" environment: API_URL: ${API_URL} mock-backend: build: . image: registry.gitlab.com/sahkoinsinoorikilta/vtmk/web2.0-frontend/frontend-mock-backend ports: - "1234:1234" command: npm run mock-backend