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-rw-r--r--cloudinit/__init__.py44
1 files changed, 44 insertions, 0 deletions
diff --git a/cloudinit/__init__.py b/cloudinit/__init__.py
index 6d276d84..0b46dde9 100644
--- a/cloudinit/__init__.py
+++ b/cloudinit/__init__.py
@@ -137,7 +137,27 @@ class CloudInit:
if ds_deps != None:
self.ds_deps = ds_deps
+
self.sysconfig = sysconfig
+
+ if DataSource.DEP_NETWORK in self.ds_deps:
+ target = "%s.d/%s" % (self.sysconfig, "91_kernel_cmdline_url.cfg")
+ if os.path.exists(target):
+ log.debug("cmdline: %s existed" % target)
+ else:
+ try:
+ (key, url, content) = get_cmdline_url()
+ if key and content:
+ util.write_file(target, content, mode=0600)
+ log.debug("cmdline: wrote %s from %s, %s" %
+ (target, key, url))
+ elif key:
+ log.debug("cmdline: %s, %s had no cloud-config" %
+ (key, url))
+ except Exception:
+ util.logexc(log)
+ log.warn("cmdline: exception occurred while reading")
+
self.cfg = self.read_cfg()
def read_cfg(self):
@@ -639,3 +659,27 @@ class InternalPartHandler:
def handle_part(self, data, ctype, filename, payload, frequency):
return(self.handler(data, ctype, filename, payload, frequency))
+
+
+def get_cmdline_url(names=('cloud-config-url', 'url'),
+ starts="#cloud-config", cmdline=None):
+
+ if cmdline == None:
+ cmdline = util.get_cmdline()
+
+ data = util.keyval_str_to_dict(cmdline)
+ url = None
+ key = None
+ for key in names:
+ if key in data:
+ url = data[key]
+ break
+ if url == None:
+ return (None, None, None)
+
+ contents = util.readurl(url)
+
+ if contents.startswith(starts):
+ return (key, url, contents)
+
+ return (key, url, None)