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authorJoshua Harlow <harlowja@gmail.com>2012-11-22 09:00:14 -0800
committerJoshua Harlow <harlowja@gmail.com>2012-11-22 09:00:14 -0800
commit180e83b20aa02dc9df903fa7e31121dd49a49b3a (patch)
tree29b83342950bdb62d2f2dc87de132a3f2308a958 /cloudinit/handlers/cloud_config.py
parent67e318c71c05b3c5dcc7e4ef9775951bbc42534c (diff)
downloadvyos-cloud-init-180e83b20aa02dc9df903fa7e31121dd49a49b3a.tar.gz
vyos-cloud-init-180e83b20aa02dc9df903fa7e31121dd49a49b3a.zip
Add which files the yaml blob came from.
Diffstat (limited to 'cloudinit/handlers/cloud_config.py')
-rw-r--r--cloudinit/handlers/cloud_config.py22
1 files changed, 19 insertions, 3 deletions
diff --git a/cloudinit/handlers/cloud_config.py b/cloudinit/handlers/cloud_config.py
index 1cfbc210..9a8782bb 100644
--- a/cloudinit/handlers/cloud_config.py
+++ b/cloudinit/handlers/cloud_config.py
@@ -38,6 +38,7 @@ class CloudConfigPartHandler(handlers.Handler):
handlers.Handler.__init__(self, PER_ALWAYS, version=3)
self.cloud_buf = {}
self.cloud_fn = paths.get_ipath("cloud_config")
+ self.file_names = []
def list_types(self):
return [
@@ -48,7 +49,17 @@ class CloudConfigPartHandler(handlers.Handler):
if not self.cloud_fn:
return
# Write the combined & merged dictionary/yaml out
- lines = ["#cloud-config", util.yaml_dumps(self.cloud_buf)]
+ lines = [
+ "#cloud-config",
+ '',
+ ]
+ # Write which files we merged from
+ if self.file_names:
+ lines.append("# from %s files" % (len(self.file_names)))
+ for fn in self.file_names:
+ lines.append("# %s" % (fn))
+ lines.append("")
+ lines.append(util.yaml_dumps(self.cloud_buf))
util.write_file(self.cloud_fn, "\n".join(lines), 0600)
def _merge_header_extract(self, payload_yaml):
@@ -78,16 +89,21 @@ class CloudConfigPartHandler(handlers.Handler):
merger = mergers.construct(merge_how)
self.cloud_buf = merger.merge(self.cloud_buf, payload_yaml)
+ def _reset(self):
+ self.file_names = []
+ self.cloud_buf = {}
+
def handle_part(self, _data, ctype, filename, payload, _freq, headers):
if ctype == handlers.CONTENT_START:
- self.cloud_buf = {}
+ self._reset()
return
if ctype == handlers.CONTENT_END:
self._write_cloud_config(self.cloud_buf)
- self.cloud_buf = {}
+ self._reset()
return
try:
self._merge_part(payload, headers)
+ self.file_names.append(filename)
except:
util.logexc(LOG, "Failed at merging in cloud config part from %s",
filename)