TypeError: can only concatenate list (not "int") to list

[d2xdt2]

If docker-compose.yml contains

 expose: 5432

instead of

  expose:
    - "5432"

then you trigger this bug

# cat /etc/redhat-release 
CentOS Linux release 7.0.1406 (Core) 
# uname -a
Linux docker 3.10.0-123.8.1.el7.x86_64 #1 SMP Mon Sep 22 19:06:58 UTC 2014 x86_64 x86_64 x86_64 GNU/Linux
# docker --version
Docker version 1.3.2, build 39fa2fa/1.3.2
# docker-compose --version
docker-compose 1.1.0
# cd /tmp/
# cat docker-compose.yml 
dbase:
  image: training/postgres
  expose: 5432

rails:
  image: training/notes
  links:
    - dbase:db
  command: env

# docker-compose up
Creating tmp_dbase_1...
Traceback (most recent call last):
  File "<string>", line 3, in <module>
  File "/code/build/docker-compose/out00-PYZ.pyz/compose.cli.main", line 31, in main
  File "/code/build/docker-compose/out00-PYZ.pyz/compose.cli.docopt_command", line 21, in sys_dispatch
  File "/code/build/docker-compose/out00-PYZ.pyz/compose.cli.command", line 27, in dispatch
  File "/code/build/docker-compose/out00-PYZ.pyz/compose.cli.docopt_command", line 24, in dispatch
  File "/code/build/docker-compose/out00-PYZ.pyz/compose.cli.command", line 59, in perform_command
  File "/code/build/docker-compose/out00-PYZ.pyz/compose.cli.main", line 445, in up
  File "/code/build/docker-compose/out00-PYZ.pyz/compose.project", line 184, in up
  File "/code/build/docker-compose/out00-PYZ.pyz/compose.service", line 259, in recreate_containers
  File "/code/build/docker-compose/out00-PYZ.pyz/compose.service", line 227, in create_container
  File "/code/build/docker-compose/out00-PYZ.pyz/compose.service", line 438, in _get_container_create_options
TypeError: can only concatenate list (not "int") to list
# 

Removing expose: 5432 makes the error go away, and outputs

# docker-compose up
Creating root_dbase_1...
Creating root_rails_1...
Attaching to root_dbase_1, root_rails_1

but never finishes. Here I had cp /tmp/docker-compose.yml ~/ and removed the expose line.

[dnephin]

That is expected behaviour. Use docker-compose up -d to have it exit once the containers start.

Related #129 for the config validation, and #741 for changing -d to be default

[dnephin]

This should be fixed by #1808