No, there is no way to see the address assigned to the DHCP port from
the subnet creation response. That is because the subnet creation
operation is independent from the DHCP port creation operation
** Changed in: neutron
Status: New => Opinion
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https://bugs.launchpad.net/bugs/1740998
Title:
DHCP Agents of multiple Allocation Pools
Status in neutron:
Opinion
Bug description:
Problem :
OpenStack has down time to establish the ports for DHCP by creating subnet
("enable_dhcp":true), I can not control and know which IP is going to be or
apply as DHCP agents. The response can't provide the specific IP which is
selected as Attached Device(network:dhcp) immediatly. In my observations and
experiments, create the subnet with multiple allocation Pools, the IP will be
used as DHCP agents randomly by different allocation pools. I need to use the
Get /v2.0/ports to map the networks and subnets repeatly until the first IP is
show up in the repsonse.
If there's a way let us know which IP is used as DHCP agents by
multiple allocation Pools after geting the response by creating the
subnet.
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I sent a post which references the Networking API v2.0 to create a
subnet within multiple allocation Pools by the network, and I also
enable DHCP with ture.
version: mitaka
POST /v2.0/subnets
#Response
{"subnet":{"allocation_pools":[
{"start":"172.18.0.1","end":"172.18.0.10"},
{"start":"172.18.0.20","end":"172.18.0.30"}],
"ipv6_address_mode":null,
"tenant_id":"b3746b09cacb421cba95ce1afd380762",
"subnetpool_id":null,
"gateway_ip":"172.18.0.254",
"cidr":"172.18.0.0/24",
"id":"73b8ffaa-6fed-425a-b00b-fb75dffdaa57",
"updated_at":"2018-01-03T04:18:22",
"network_id":"0926e907-8e69-4231-ae2f-a051b2d77bf2",
"dns_nameservers":["8.8.8.8"],
"description":"","name":"",
"enable_dhcp":true,
"created_at":"2018-01-03T04:18:22","ipv6_ra_mode":null,"host_routes":[],"ip_version":4}}
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