mirror of
https://github.com/docker/compose.git
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3e2fd6a2a1
Removed all "smart" connection logic. Fig either uses the DOCKER_HOST environment variable if it's present, or passes `None` to docker-py, which does the "right thing" (i.e. falls back to the Unix socket). This means we no longer know at URL-deciding time whether we can connect to the Docker daemon, so we wrap `dispatch` in a `try/except` which catches `requests.exceptions.ConnectionError`.
63 lines
1.7 KiB
Python
63 lines
1.7 KiB
Python
from __future__ import unicode_literals
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from __future__ import absolute_import
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from ..packages.docker import Client
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from requests.exceptions import ConnectionError
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import errno
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import logging
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import os
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import re
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import yaml
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from ..project import Project
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from .docopt_command import DocoptCommand
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from .formatter import Formatter
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from .utils import cached_property, docker_url
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from .errors import UserError
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log = logging.getLogger(__name__)
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class Command(DocoptCommand):
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base_dir = '.'
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def dispatch(self, *args, **kwargs):
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try:
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super(Command, self).dispatch(*args, **kwargs)
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except ConnectionError:
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raise UserError("""
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Couldn't connect to Docker daemon at %s - is it running?
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If it's at a non-standard location, specify the URL with the DOCKER_HOST environment variable.
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""" % self.client.base_url)
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@cached_property
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def client(self):
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return Client(docker_url())
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@cached_property
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def project(self):
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try:
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yaml_path = os.path.join(self.base_dir, 'fig.yml')
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config = yaml.load(open(yaml_path))
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except IOError as e:
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if e.errno == errno.ENOENT:
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log.error("Can't find %s. Are you in the right directory?", os.path.basename(e.filename))
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else:
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log.error(e)
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exit(1)
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return Project.from_config(self.project_name, config, self.client)
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@cached_property
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def project_name(self):
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project = os.path.basename(os.getcwd())
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project = re.sub(r'[^a-zA-Z0-9]', '', project)
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if not project:
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project = 'default'
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return project
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@cached_property
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def formatter(self):
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return Formatter()
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