services: tarballer: build: context: . volumes: - ./bin:/output - ./test:/test - .:/workdir working_dir: /workdir command: sh -c "cp /app/tarballer-freebsd /output/ && cp /app/tarballer-darwin /output/ && cp /app/tarballer-linux /output/ && chmod +x /output/tarballer-* && /bin/test.sh all"