3 files changed, 20 insertions, 11 deletions
diff --git a/cloudinit/sources/DataSourceCloudSigma.py b/cloudinit/sources/DataSourceCloudSigma.py
index 07e8ae11..d1f806d6 100644
--- a/cloudinit/sources/DataSourceCloudSigma.py
+++ b/cloudinit/sources/DataSourceCloudSigma.py
@@ -115,6 +115,9 @@ class DataSourceCloudSigma(sources.DataSource):
         return self.metadata['uuid']
 
 
+# Legacy: Must be present in case we load an old pkl object
+DataSourceCloudSigmaNet = DataSourceCloudSigma
+
 # Used to match classes to dependencies. Since this datasource uses the serial
 # port network is not really required, so it's okay to load without it, too.
 datasources = [
diff --git a/cloudinit/sources/DataSourceConfigDrive.py b/cloudinit/sources/DataSourceConfigDrive.py
index 2d13a32f..61d967d9 100644
--- a/cloudinit/sources/DataSourceConfigDrive.py
+++ b/cloudinit/sources/DataSourceConfigDrive.py
@@ -254,17 +254,6 @@ def find_candidate_devs(probe_optical=True):
     return devices
 
 
-# Used to match classes to dependencies
-datasources = [
-    (DataSourceConfigDrive, (sources.DEP_FILESYSTEM, )),
-]
-
-
-# Return a list of data sources that match this set of dependencies
-def get_datasource_list(depends):
-    return sources.list_from_depends(depends, datasources)
-
-
 # Convert OpenStack ConfigDrive NetworkData json to network_config yaml
 def convert_network_data(network_json=None):
     """Return a dictionary of network_config by parsing provided
@@ -382,3 +371,17 @@ def convert_network_data(network_json=None):
         config.append(cfg)
 
     return {'version': 1, 'config': config}
+
+
+# Legacy: Must be present in case we load an old pkl object
+DataSourceConfigDriveNet = DataSourceConfigDrive
+
+# Used to match classes to dependencies
+datasources = [
+    (DataSourceConfigDrive, (sources.DEP_FILESYSTEM, )),
+]
+
+
+# Return a list of data sources that match this set of dependencies
+def get_datasource_list(depends):
+    return sources.list_from_depends(depends, datasources)
diff --git a/cloudinit/sources/DataSourceOpenNebula.py b/cloudinit/sources/DataSourceOpenNebula.py
index 15819a4f..8f85b115 100644
--- a/cloudinit/sources/DataSourceOpenNebula.py
+++ b/cloudinit/sources/DataSourceOpenNebula.py
@@ -415,6 +415,9 @@ def read_context_disk_dir(source_dir, asuser=None):
     return results
 
 
+# Legacy: Must be present in case we load an old pkl object
+DataSourceOpenNebulaNet = DataSourceOpenNebula
+
 # Used to match classes to dependencies
 datasources = [
     (DataSourceOpenNebula, (sources.DEP_FILESYSTEM, )),