Errors in Docker containers

[madduck]

Hello, I am trying to run your app with Docker, and apart from #336, it seems there are also heaps of other issues:

neumatic-seaweedfs-volume  | I0812 17:12:05.719077 file_util.go:27 Folder /data Permission: -rwxr-xr-x
pneumatic-seaweedfs-volume  | I0812 17:12:05.736417 volume_grpc_client_to_master.go:44 checkWithMaster seaweedfs-master:9333: get master seaweedfs-master:9333 configuration: rpc error: code = Unavailable desc = connection error: desc = "transport: Error while dialing: dial tcp 172.18.0.6:19333: connect: connection refused"
pneumatic-backend           | python: can't open file 'manage.py': [Errno 2] No such file or directory
pneumatic-seaweedfs-volume  | I0812 17:12:07.528324 volume_grpc_client_to_master.go:44 checkWithMaster seaweedfs-master:9333: get master seaweedfs-master:9333 configuration: rpc error: code = Unavailable desc = connection error: desc = "transport: Error while dialing: dial tcp 172.18.0.6:19333: connect: connection refused"
pneumatic-backend exited with code 2 (restarting)
pneumatic-backend           | python: can't open file 'manage.py': [Errno 2] No such file or directory
pneumatic-seaweedfs-volume  | I0812 17:12:09.321995 volume_grpc_client_to_master.go:44 checkWithMaster seaweedfs-master:9333: get master seaweedfs-master:9333 configuration: rpc error: code = Unavailable desc = connection error: desc = "transport: Error while dialing: dial tcp 172.18.0.6:19333: connect: connection refused"
pneumatic-celery            | Error:
pneumatic-celery            | Unable to load celery application.
pneumatic-celery            | The module src was not found.
pneumatic-celery            |
pneumatic-celery-beat       | Error:
pneumatic-celery-beat       | Unable to load celery application.
pneumatic-celery-beat       | The module src was not found.
pneumatic-celery-beat       |