Make LaunchConfiguration resources mergeable

This can be very useful for merging of Metadata to be used
by optional services (e. g. to add services like tuskar to
undercloud on demand).

Change-Id: Ifc4016d6e994064c0772c12e668e98bf055fada9

1 files changed, 12 insertions, 8 deletions

diff --git a/merge.py b/merge.py
index 3b7d2dd3..fe42b8db 100644
--- a/merge.py
+++ b/merge.py
@@ -48,6 +48,8 @@ MERGABLE_TYPES = {'OS::Nova::Server':
                   {'image': 'image'},
                   'AWS::EC2::Instance':
                   {'image': 'ImageId'},
+                  'AWS::AutoScaling::LaunchConfiguration':
+                  {},
                  }
 
 
@@ -119,10 +121,11 @@ for template_path in templates:
     new_resources = template.get('Resources', {})
     for r, rbody in sorted(new_resources.items()):
         if rbody['Type'] in MERGABLE_TYPES:
-            image_key = MERGABLE_TYPES[rbody['Type']]['image']
-            # XXX Assuming ImageId is always a Ref
-            ikey_val = end_template['Parameters'][rbody['Properties'][image_key]['Ref']]
-            del end_template['Parameters'][rbody['Properties'][image_key]['Ref']]
+            if 'image' in MERGABLE_TYPES[rbody['Type']]:
+                image_key = MERGABLE_TYPES[rbody['Type']]['image']
+                # XXX Assuming ImageId is always a Ref
+                ikey_val = end_template['Parameters'][rbody['Properties'][image_key]['Ref']]
+                del end_template['Parameters'][rbody['Properties'][image_key]['Ref']]
             role = rbody.get('Metadata', {}).get('OpenStack::Role', r)
             role = translate_role(role)
             if role != r:
@@ -143,9 +146,10 @@ for template_path in templates:
             if 'Resources' not in end_template:
                 end_template['Resources'] = {}
             end_template['Resources'][role] = rbody
-            ikey = '%sImage' % (role)
-            end_template['Resources'][role]['Properties'][image_key] = {'Ref': ikey}
-            end_template['Parameters'][ikey] = ikey_val
+            if 'image' in MERGABLE_TYPES[rbody['Type']]:
+                ikey = '%sImage' % (role)
+                end_template['Resources'][role]['Properties'][image_key] = {'Ref': ikey}
+                end_template['Parameters'][ikey] = ikey_val
         elif rbody['Type'] == 'FileInclude':
             with open(rbody['Path']) as rfile:
                 include_content = yaml.safe_load(rfile.read())
@@ -196,7 +200,7 @@ def fix_ref(item, old, new):
 
 for change in resource_changes:
     fix_ref(end_template, change[0], change[1])
- 
+
 if errors:
     for e in errors:
         sys.stderr.write("ERROR: %s\n" % e)