val = loader.construct_scalar(node)
return env[val]
def load_clients(stream):
"""
Loads client configurations from a YAML document stream.
:param stream: YAML stream.
:type stream: file
:return: A dictionary of client configuration objects.
:rtype: dict[unicode, dockerfabric.apiclient.DockerClientConfiguration]
"""
return _load_clients(stream, configuration_class=DockerClientConfiguration)
def load_clients_file(filename):
"""
Loads client configurations from a YAML file.
:param filename: YAML file name.
:type filename: unicode
:return: A dictionary of client configuration objects.
:rtype: dict[unicode, dockerfabric.apiclient.DockerClientConfiguration]
"""
return _load_clients_file(filename, configuration_class=DockerClientConfiguration)
yaml.add_constructor('!env_lazy', expand_env_lazy, yaml.SafeLoader)
yaml.add_constructor('!env', expand_env, yaml.SafeLoader)
Substitutes a variable read from a YAML node with a MsgPack ExtType value referring to data stored in a pillar.
:param loader: YAML loader.
:type loader: yaml.loader.SafeLoader
:param node: Document node.
:type node: ScalarNode
:return: Corresponding value stored in the pillar.
:rtype: msgpack.ExtType
"""
val = loader.construct_scalar(node)
return ExtType(_ext_types['pillar'], val.encode('utf-8'))
def expand_grain_lazy(loader, node):
"""
Substitutes a variable read from a YAML node with a MsgPack ExtType value referring to data stored in a grain.
:param loader: YAML loader.
:type loader: yaml.loader.SafeLoader
:param node: Document node.
:type node: ScalarNode
:return: Corresponding value stored in the grain.
:rtype: msgpack.ExtType
"""
val = loader.construct_scalar(node)
return ExtType(_ext_types['grain'], val.encode('utf-8'))
yaml.add_constructor('!pillar', expand_pillar_lazy, SaltYamlSafeLoader)
yaml.add_constructor('!grain', expand_pillar_lazy, SaltYamlSafeLoader)