Allow user_data modification¶
https://blueprints.launchpad.net/nova/+spec/userdata-modification
Current nova API allows setting up user_data during server creation and retrieving it along with other extended server attributes. EC2 API requires public API for modification of this data for compatibility with Amazon. However, it will be implemented only for user_data owned by metadata server. If metadata is stored on config drive it will not be changed.
Problem description¶
There is no mechanism for end-user to modify user_data.
Use Cases¶
User wants to modify user_data. Impacts end user.
Project Priority¶
None
Proposed change¶
Add a new microversion allowing modification of OS-USER-DATA:user_data via PUT method.
Alternatives¶
None
Data model impact¶
None
REST API impact¶
The method:
“/v2/{project_id}/servers/{server_id}”
With the method type PUT.
will be updated to allow setting of attribute “user_data” The JSON schema will be used exactly the same as for creation (it will be reused):
server_create = {
'user_data': {
'type': 'string',
'format': 'base64'
}
Security impact¶
None
Notifications impact¶
None
Other end user impact¶
None
Performance Impact¶
None
Other deployer impact¶
None
Developer impact¶
None
Implementation¶
Assignee(s)¶
- Primary assignee:
Alexandre Levine (alexandrelevine@gmail.com)
Work Items¶
Single work item.
Dependencies¶
None
Testing¶
Unit tests and functional tests to be created.
Documentation Impact¶
Compute API documentation changes
References¶
https://etherpad.openstack.org/p/YVR-nova-contributor-meetup
http://docs.aws.amazon.com/AWSEC2/latest/APIReference/
API_ModifyInstanceAttribute.html
History¶
None
