Hello, I was unable to get anti-affinity to work in Sahara. The logs were reporting a Heat error that u'' was not a valid UUID. Upon further investigation, I think I found several errors in the `sahara/service/heat/templates.py` file. I'm working with Sahara 7.0.0 but the master branch still exhibits these problems.
I figured I would start with posting to the general openstack list rather than -dev or opening a bug report just to check my sanity on this. If these findings are correct, then anti-affinity is broke and has been for some time. The alternative is that I've missed some configuration somewhere -- which is entirely possible :) 1. ng.count is either invalid, always returns 0, or isn't being set somewhere else. https://github.com/openstack/sahara/blob/master/sahara/service/heat/templates.py#L276 Instead, I've used ng_count = self.node_groups_extra[ng.id]['node_count'] 2. an uninitialized Python key. https://github.com/openstack/sahara/blob/master/sahara/service/heat/templates.py#L283 3. Incorrect bounds in range(): https://github.com/openstack/sahara/blob/master/sahara/service/heat/templates.py#L255-L256 I believe this should be: for i in range(0, self.cluster.anti_affinity_ratio): resources.update(self._serialize_aa_server_group(i+1)) https://github.com/openstack/sahara/blob/master/sahara/service/heat/templates.py#L278 I believe this should be: for i in range(0, ng_count): Thanks, Joe
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