It's simple to add some limitation to ensure VIP and members are from
same subnet of pool. But I think it's not a good idea to do that.
I did a test, in my case, at first, I got VIP and some members from
pool's subnet, later I created a new subnet, connect it with previous
subnet by a router, and add members from the new subnet to pool. The
client can get response from both from previous members and new members.
So I think to limit members must from the same subnet is not a good
idea, and checking whether members' subnets are accessible to VIP will
make things complex.
** Changed in: neutron
Status: New => Invalid
** Changed in: neutron
Assignee: ZongKai LI (lzklibj) => (unassigned)
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https://bugs.launchpad.net/bugs/1453791
Title:
Lbaas Pool and Members from Different SubNets
Status in OpenStack Neutron (virtual network service):
Invalid
Bug description:
There is no definite mapping between Pool Subnet ID and Its Members.
It is possible to Assign another Subnet with different IP for Pool and
its members.
For E.g
A pool is created with subnet 135.254.189.0/24, and its members from
Instances assigned to Another Subnet (172.21.184.0/24).
Under the following reference,
https://etherpad.openstack.org/p/neutron-lbaas-api-proposals
For Create-Pool,
Request
POST /pools.json
{
'pool': {
'tenant_id': 'someid',
'name': 'some name',
'subnet_id': 'id-of-subnet-where-members-reside', -------> The
Subnet must be defined as per the instances Subnet
'protocol': 'HTTP',
'lb_method': 'ROUND_ROBIN'
'admin_state_up': True,
}
}
Validation needs to be done such that the instances ( Members ) are created
for the Pool of the same Subnet.
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https://bugs.launchpad.net/neutron/+bug/1453791/+subscriptions
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