Marking this as WontFix only because I think its a feature request, not
a bug and we don't need to keep track of it in the bugs database. Please
submit this as a proposal to nova-specs and blueprint
** Changed in: nova
Status: New => Won't Fix
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https://bugs.launchpad.net/bugs/1323981
Title:
Can't determine instance's server_group via 'DescribeInstance()'
Status in OpenStack Compute (Nova):
Won't Fix
Bug description:
The 'server_group' function is implemented in Icehouse.
But we can't determine VM's server_group via 'DescribeInstance()'.
The only way to get this info is to filter from all server_groups'
memberships.
That's not an elegant & convenient way.
----------------
Imagine the use case below:
1. One environment has lots of(like 100) server_groups, and each server_group
involves 100 instances inside.
2. One instance has been created into one server_group before. Now I need to
create another one with anti-affinity policy with it.
3. Now how can I determine which server_group should I choose?
4. The only way here is to list all server_groups info, and filter their
membership using vm's uuid.
5. More and more workloads will be increased if environment has much more
server_groups.
----------------
So, we need to add one item like 'server_group' in 'DescribeInstance()'s
response IMO.
The server_group info is already stored in db. We only need to feedback the
relationship of instance and server_group via the API.
In this case, the step above can be simplified into one step:
1. Execute 'DescirbeInstance()' to get the server_group's uuid.
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