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+..
+ This work is licensed under a Creative Commons Attribution 3.0 Unported
+ License.
+
+ http://creativecommons.org/licenses/by/3.0/legalcode
+
+===========================================
+Heat template migrate resources' properties
+===========================================
+
+https://blueprints.launchpad.net/heat/+spec/heat-template-port
+
+Heat does not provide api/cli to migrate the given template from old heat
+version to later.
+
+Problem description
+===================
+
+Heat is being released inline with each Openstack release and there is a chance
+that resource properties and attributes might have changed and/or deprecated
+across these releases. A user may wish to migrate the template to current
+version which was created during earlier version say juno. Currently heat
+does not support it.
+
+Proposed change
+===============
+
+Heat already having mechanism to define the translation rule for each of the
+properties being deprecated by using translation.TranslationRule.
+This is being implemented in resource plugins in order to support migration
+to new property in place of deprecated one.
+
+This feature could be updated with below command
+
+``openstack orchestration template migrate -t <template-file> --output-format
+[json|yaml] --output-file <output-file>``
+
+This command will migrate the given template file and will write the template
+output mentioned in output-format.
+
+Command will provide messages of changes made to the deprecated properties in
+below format::
+
+    <resource-path> <property> <action> <details>
+
+where:
+
+*resource-path*
+    Gives the resource path in the given template.
+
+*property*:
+    Property name to migrate to current version.
+
+*action*:
+    One of add, replace or delete.
+
+*details*:
+    Provides additional details about deprecation, if any.
+
+
+Alternatives
+------------
+
+None
+
+Implementation
+==============
+
+Assignee(s)
+-----------
+
+Primary assignee:
+  kanagaraj-manickam
+  ananta
+
+Milestones
+----------
+
+Target Milestone for completion:
+  ocata-1
+
+Work Items
+----------
+
+* For those deprecated properties in resource plugins, add translation rules
+* Add required API and test cases
+* update the python-openstackclient with new CLI as mentioned above.
+
+Dependencies
+============
+
+None