View docker-compose services logs in split tmux panes

splitlogs.py

# Requires pyyaml

import os
import yaml

run = os.system
new_window = lambda cmd: run('tmux new-window -n "logs" "{}"'.format(cmd))
split_vertical = lambda cmd: run('tmux split-window "{}"'.format(cmd))
split_horizontal = lambda cmd: run('tmux split-window -h "{}"'.format(cmd))
even_vertical = lambda: run('tmux select-layout even-vertical')

if __name__ == '__main__':
    try:
        config_text = open('docker-compose.yaml').read()
    except IOError:
        config_text = open('docker-compose.yml').read()

    config = yaml.load(config_text)

    services = config['services'].keys()
    new_window('docker-compose logs -f {}'.format(services[0]))

    for service in services[1:]:
        split_horizontal('docker-compose logs -f {}'.format(service))

    even_vertical()

This works great for me! One minor issue - to run on python 3.7, line 20 should be:

    services = list(config['services'].keys())

To get around this warning:

/shell.py:18: YAMLLoadWarning: calling yaml.load() without Loader=... is deprecated, 
as the default Loader is unsafe. Please read https://msg.pyyaml.org/load for full details.
  config = yaml.load(config_text)

...you need to change line 18 to:

    config = yaml.load(config_text, Loader=yaml.SafeLoader)