/usr/lib/python2.7/dist-packages/magnum/common/docker_utils.py is in python-magnum 3.1.1-5.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 | # Copyright 2015 Rackspace All rights reserved.
#
# Licensed under the Apache License, Version 2.0 (the "License"); you may
# not use this file except in compliance with the License. You may obtain
# a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
# License for the specific language governing permissions and limitations
# under the License.
import contextlib
import docker
from docker import client
from docker import tls
from docker.utils import utils
from oslo_config import cfg
from magnum.conductor.handlers.common import cert_manager
from magnum.conductor import utils as conductor_utils
docker_opts = [
cfg.StrOpt('docker_remote_api_version',
default='1.20',
help='Docker remote api version. Override it according to '
'specific docker api version in your environment.'),
cfg.IntOpt('default_timeout',
default=60,
help='Default timeout in seconds for docker client '
'operations.'),
cfg.BoolOpt('api_insecure',
default=False,
help='If set, ignore any SSL validation issues'),
cfg.StrOpt('ca_file',
help='Location of CA certificates file for '
'securing docker api requests (tlscacert).'),
cfg.StrOpt('cert_file',
help='Location of TLS certificate file for '
'securing docker api requests (tlscert).'),
cfg.StrOpt('key_file',
help='Location of TLS private key file for '
'securing docker api requests (tlskey).'),
]
CONF = cfg.CONF
CONF.register_opts(docker_opts, 'docker')
def parse_docker_image(image):
image_parts = image.split(':', 1)
image_repo = image_parts[0]
image_tag = None
if len(image_parts) > 1:
image_tag = image_parts[1]
return image_repo, image_tag
def is_docker_library_version_atleast(version):
if utils.compare_version(docker.version, version) <= 0:
return True
return False
def is_docker_api_version_atleast(docker, version):
if utils.compare_version(docker.version()['ApiVersion'], version) <= 0:
return True
return False
@contextlib.contextmanager
def docker_for_cluster(context, cluster):
cluster_template = conductor_utils.retrieve_cluster_template(
context, cluster)
ca_cert, magnum_key, magnum_cert = None, None, None
client_kwargs = dict()
if not cluster_template.tls_disabled:
(ca_cert, magnum_key,
magnum_cert) = cert_manager.create_client_files(cluster)
client_kwargs['ca_cert'] = ca_cert.name
client_kwargs['client_key'] = magnum_key.name
client_kwargs['client_cert'] = magnum_cert.name
yield DockerHTTPClient(
cluster.api_address,
CONF.docker.docker_remote_api_version,
CONF.docker.default_timeout,
**client_kwargs
)
if ca_cert:
ca_cert.close()
if magnum_key:
magnum_key.close()
if magnum_cert:
magnum_cert.close()
class DockerHTTPClient(client.Client):
def __init__(self, url='unix://var/run/docker.sock',
ver=CONF.docker.docker_remote_api_version,
timeout=CONF.docker.default_timeout,
ca_cert=None,
client_key=None,
client_cert=None):
if ca_cert and client_key and client_cert:
ssl_config = tls.TLSConfig(
client_cert=(client_cert, client_key),
verify=ca_cert,
assert_hostname=False,
)
else:
ssl_config = False
super(DockerHTTPClient, self).__init__(
base_url=url,
version=ver,
timeout=timeout,
tls=ssl_config
)
def list_instances(self, inspect=False):
res = []
for container in self.containers(all=True):
info = self.inspect_container(container['Id'])
if not info:
continue
if inspect:
res.append(info)
else:
res.append(info['Config'].get('Hostname'))
return res
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