diff options
Diffstat (limited to 'cloudinit/sources')
| -rw-r--r-- | cloudinit/sources/__init__.py | 16 |
1 files changed, 16 insertions, 0 deletions
diff --git a/cloudinit/sources/__init__.py b/cloudinit/sources/__init__.py index e6966b31..9d249366 100644 --- a/cloudinit/sources/__init__.py +++ b/cloudinit/sources/__init__.py @@ -66,6 +66,13 @@ CLOUD_ID_REGION_PREFIX_MAP = { 'china': ('azure-china', lambda c: c == 'azure'), # only change azure } +# NetworkConfigSource represents the canonical list of network config sources +# that cloud-init knows about. (Python 2.7 lacks PEP 435, so use a singleton +# namedtuple as an enum; see https://stackoverflow.com/a/6971002) +_NETCFG_SOURCE_NAMES = ('cmdline', 'ds', 'system_cfg', 'fallback') +NetworkConfigSource = namedtuple('NetworkConfigSource', + _NETCFG_SOURCE_NAMES)(*_NETCFG_SOURCE_NAMES) + class DataSourceNotFoundException(Exception): pass @@ -153,6 +160,15 @@ class DataSource(object): # Track the discovered fallback nic for use in configuration generation. _fallback_interface = None + # The network configuration sources that should be considered for this data + # source. (The first source in this list that provides network + # configuration will be used without considering any that follow.) This + # should always be a subset of the members of NetworkConfigSource with no + # duplicate entries. + network_config_sources = (NetworkConfigSource.cmdline, + NetworkConfigSource.system_cfg, + NetworkConfigSource.ds) + # read_url_params url_max_wait = -1 # max_wait < 0 means do not wait url_timeout = 10 # timeout for each metadata url read attempt |