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-rw-r--r--cloudinit/cloud.py5
-rw-r--r--cloudinit/sources/DataSourceEc2.py5
-rw-r--r--cloudinit/sources/__init__.py9
-rw-r--r--cloudinit/user_data.py5
4 files changed, 17 insertions, 7 deletions
diff --git a/cloudinit/cloud.py b/cloudinit/cloud.py
index af69a541..95e0cfb2 100644
--- a/cloudinit/cloud.py
+++ b/cloudinit/cloud.py
@@ -76,8 +76,9 @@ class Cloud(object):
def get_instance_id(self):
return self.datasource.get_instance_id()
- def get_launch_index(self):
- return self.datasource.get_launch_index()
+ @property
+ def launch_index(self):
+ return self.datasource.launch_index
def get_public_ssh_keys(self):
return self.datasource.get_public_ssh_keys()
diff --git a/cloudinit/sources/DataSourceEc2.py b/cloudinit/sources/DataSourceEc2.py
index 3e450e7e..2a9a70f7 100644
--- a/cloudinit/sources/DataSourceEc2.py
+++ b/cloudinit/sources/DataSourceEc2.py
@@ -77,7 +77,10 @@ class DataSourceEc2(sources.DataSource):
self.metadata_address)
return False
- def get_launch_index(self):
+ @property
+ def launch_index(self):
+ if not self.metadata:
+ return None
return self.metadata.get('ami-launch-index')
def get_instance_id(self):
diff --git a/cloudinit/sources/__init__.py b/cloudinit/sources/__init__.py
index d49b67b2..74944e38 100644
--- a/cloudinit/sources/__init__.py
+++ b/cloudinit/sources/__init__.py
@@ -68,13 +68,18 @@ class DataSource(object):
return self._filter_userdata(self.userdata)
return self.userdata
- def get_launch_index(self):
+ @property
+ def launch_index(self):
+ if not self.metadata:
+ return None
+ if 'launch-index' in self.metadata:
+ return self.metadata['launch-index']
return None
def _filter_userdata(self, processed_ud):
if not processed_ud:
return processed_ud
- idx = self.get_launch_index()
+ idx = self.launch_index
if idx is None:
return processed_ud
# First do a scan to see if any one with launch-index
diff --git a/cloudinit/user_data.py b/cloudinit/user_data.py
index 2b76482a..5d550e1d 100644
--- a/cloudinit/user_data.py
+++ b/cloudinit/user_data.py
@@ -53,7 +53,8 @@ ARCHIVE_UNDEF_TYPE = "text/cloud-config"
ATTACHMENT_FIELD = 'Number-Attachments'
# Only the following content types can have there launch index examined
-CAN_HAVE_LAUNCH_INDEX = ["text/cloud-config", "text/cloud-config-archive"]
+# in there payload, evey other content type can still provide a header
+EXAMINE_FOR_LAUNCH_INDEX = ["text/cloud-config", "text/cloud-config-archive"]
class UserDataProcessor(object):
@@ -101,7 +102,7 @@ class UserDataProcessor(object):
def _attach_launch_index(self, msg):
header_idx = msg.get('Launch-Index', None)
payload_idx = None
- if msg.get_content_type() in CAN_HAVE_LAUNCH_INDEX:
+ if msg.get_content_type() in EXAMINE_FOR_LAUNCH_INDEX:
try:
# See if it has a launch-index field
# that might affect the final header