compose/compose/config/serialize.py
Daniel Nephin 2acf286ed6 Support V3.2
Signed-off-by: Daniel Nephin <dnephin@docker.com>
2017-03-15 11:40:31 -04:00

113 lines
3.4 KiB
Python

from __future__ import absolute_import
from __future__ import unicode_literals
import six
import yaml
from compose import const
from compose.config import types
from compose.const import COMPOSEFILE_V1 as V1
from compose.const import COMPOSEFILE_V2_1 as V2_1
def serialize_config_type(dumper, data):
representer = dumper.represent_str if six.PY3 else dumper.represent_unicode
return representer(data.repr())
def serialize_dict_type(dumper, data):
return dumper.represent_dict(data.repr())
yaml.SafeDumper.add_representer(types.VolumeFromSpec, serialize_config_type)
yaml.SafeDumper.add_representer(types.VolumeSpec, serialize_config_type)
yaml.SafeDumper.add_representer(types.ServiceSecret, serialize_dict_type)
yaml.SafeDumper.add_representer(types.ServicePort, serialize_dict_type)
def denormalize_config(config):
result = {'version': V2_1 if config.version == V1 else config.version}
denormalized_services = [
denormalize_service_dict(service_dict, config.version)
for service_dict in config.services
]
result['services'] = {
service_dict.pop('name'): service_dict
for service_dict in denormalized_services
}
result['networks'] = config.networks.copy()
for net_name, net_conf in result['networks'].items():
if 'external_name' in net_conf:
del net_conf['external_name']
result['volumes'] = config.volumes.copy()
for vol_name, vol_conf in result['volumes'].items():
if 'external_name' in vol_conf:
del vol_conf['external_name']
if config.version in (V3_1,):
result['secrets'] = config.secrets
return result
def serialize_config(config):
return yaml.safe_dump(
denormalize_config(config),
default_flow_style=False,
indent=2,
width=80)
def serialize_ns_time_value(value):
result = (value, 'ns')
table = [
(1000., 'us'),
(1000., 'ms'),
(1000., 's'),
(60., 'm'),
(60., 'h')
]
for stage in table:
tmp = value / stage[0]
if tmp == int(value / stage[0]):
value = tmp
result = (int(value), stage[1])
else:
break
return '{0}{1}'.format(*result)
def denormalize_service_dict(service_dict, version):
service_dict = service_dict.copy()
if 'restart' in service_dict:
service_dict['restart'] = types.serialize_restart_spec(
service_dict['restart']
)
if version == V1 and 'network_mode' not in service_dict:
service_dict['network_mode'] = 'bridge'
if 'depends_on' in service_dict and version != V2_1:
service_dict['depends_on'] = sorted([
svc for svc in service_dict['depends_on'].keys()
])
if 'healthcheck' in service_dict:
if 'interval' in service_dict['healthcheck']:
service_dict['healthcheck']['interval'] = serialize_ns_time_value(
service_dict['healthcheck']['interval']
)
if 'timeout' in service_dict['healthcheck']:
service_dict['healthcheck']['timeout'] = serialize_ns_time_value(
service_dict['healthcheck']['timeout']
)
if 'ports' in service_dict and version < const.COMPOSEFILE_V3_2:
service_dict['ports'] = map(
lambda p: p.legacy_repr() if isinstance(p, types.ServicePort) else p,
service_dict['ports']
)
return service_dict