Add network-group-affinity/anti-affinity server group policies#116
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Add network-group-affinity/anti-affinity server group policies#116RSabounds wants to merge 1 commit into
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Introduces two new server group policies that constrain instance
placement based on the physical network group (VLAN group / cabinet
switch pair) an Ironic node belongs to.
New policies:
- network-group-affinity: schedule only onto nodes in the specified
network group
- network-group-anti-affinity: schedule only onto nodes NOT in the
specified network group
The network group is specified via the server group rules field:
openstack server group create --policy network-group-affinity \
--rule network_group=a1-1-network my-cabinet-group
The filters match CUSTOM_NETGROUP_* traits reported by Ironic nodes
via the Placement service. This eliminates the need for per-network-
group flavor proliferation.
Changes:
- New NetworkGroupAffinityFilter and NetworkGroupAntiAffinityFilter
- Schema updated to accept new policies and network_group rule
- API controller validates rules per policy type
- InstanceGroup.rules property parses network_group
- Scheduler utils recognizes new policies
- New filters added to default enabled_filters
- Unit tests (15 tests, all passing)
- Lint clean (flake8 + hacking)
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Introduces two new server group policies that constrain instance placement based on the physical network group (VLAN group / cabinet switch pair) an Ironic node belongs to.
New policies:
The network group is specified via the server group rules field:
openstack server group create --policy network-group-affinity
--rule network_group=a1-1-network my-cabinet-group
The filters match CUSTOM_NETGROUP_* traits reported by Ironic nodes via the Placement service. This eliminates the need for per-network- group flavor proliferation.
Changes: