Files
docker-docs/compose/network.py
2016-01-14 17:59:37 +00:00

59 lines
1.8 KiB
Python

from __future__ import absolute_import
from __future__ import unicode_literals
import logging
from docker.errors import NotFound
from .config import ConfigurationError
log = logging.getLogger(__name__)
# TODO: support external networks
class Network(object):
def __init__(self, client, project, name, driver=None, driver_opts=None):
self.client = client
self.project = project
self.name = name
self.driver = driver
self.driver_opts = driver_opts
def ensure(self):
try:
data = self.inspect()
if self.driver and data['Driver'] != self.driver:
raise ConfigurationError(
'Network {} needs to be recreated - driver has changed'
.format(self.full_name))
if data['Options'] != (self.driver_opts or {}):
raise ConfigurationError(
'Network {} needs to be recreated - options have changed'
.format(self.full_name))
except NotFound:
driver_name = 'the default driver'
if self.driver:
driver_name = 'driver "{}"'.format(self.driver)
log.info(
'Creating network "{}" with {}'
.format(self.full_name, driver_name)
)
self.client.create_network(
self.full_name, self.driver, self.driver_opts
)
def remove(self):
# TODO: don't remove external networks
log.info("Removing network {}".format(self.full_name))
self.client.remove_network(self.full_name)
def inspect(self):
return self.client.inspect_network(self.full_name)
@property
def full_name(self):
return '{0}_{1}'.format(self.project, self.name)