[OVN] Update the DHCP options when the metadata port is modified
Always update the DHCP options when the metadata port is created,
updated or deleted. If the metadata port IP addresses are updated,
the DHCP options register should be too, modifying the static routes
defined in "DHCP_Options.options.classless_static_route".
These static routes will be injected in the VM in the DHCP request.
The IP address of the metadata port should match with the static
route redirecting the traffic to the metadata IP address
"169.254.169.254/32":
$ ip r
default via 10.0.0.1 dev eth0
10.0.0.0/28 dev eth0 scope link src 10.0.0.7
169.254.169.254 via 10.0.0.2 dev eth0 # 10.0.0.2 is the metadata # port IP address
Reviewed: https:/ /review. opendev. org/c/openstack /neutron/ +/807692 /opendev. org/openstack/ neutron/ commit/ bd0ded15ca21161 c0f20679477445f 4e31128267
Committed: https:/
Submitter: "Zuul (22348)"
Branch: master
commit bd0ded15ca21161 c0f20679477445f 4e31128267
Author: Rodolfo Alonso Hernandez <email address hidden>
Date: Tue Sep 7 08:52:21 2021 +0000
[OVN] Update the DHCP options when the metadata port is modified
Always update the DHCP options when the metadata port is created, options. classless_ static_ route".
updated or deleted. If the metadata port IP addresses are updated,
the DHCP options register should be too, modifying the static routes
defined in "DHCP_Options.
These static routes will be injected in the VM in the DHCP request. 254.169. 254/32" :
The IP address of the metadata port should match with the static
route redirecting the traffic to the metadata IP address
"169.
$ ip r 254.169. 254 via 10.0.0.2 dev eth0 # 10.0.0.2 is the metadata
# port IP address
default via 10.0.0.1 dev eth0
10.0.0.0/28 dev eth0 scope link src 10.0.0.7
169.
Closes-Bug: #1942794 899b97d83bdc196 3b010e97dac
Change-Id: Id5d4909caa521a