No access to the metadata in containerized undercloud

[Juan Antonio Osorio Robles]

When trying to access the metadata, there is the following error:

curl http://169.254.169.254/openstack/2016-10-06/vendor_data2.json
curl: (7) Failed connect to 169.254.169.254:80; Connection refused

From an overcloud node we can see that the route is there:

$ netstat -nr
Kernel IP routing table
Destination Gateway Genmask Flags MSS Window irtt Iface
0.0.0.0 192.168.24.1 0.0.0.0 UG 0 0 0 br-ex
169.254.169.254 192.168.24.1 255.255.255.255 UGH 0 0 0 br-ex
172.16.0.0 0.0.0.0 255.255.255.0 U 0 0 0 vlan50
172.16.1.0 0.0.0.0 255.255.255.0 U 0 0 0 vlan30
172.16.2.0 0.0.0.0 255.255.255.0 U 0 0 0 vlan20
172.31.0.0 0.0.0.0 255.255.255.0 U 0 0 0 docker0
192.168.24.0 0.0.0.0 255.255.255.0 U 0 0 0 br-ex

But the metadata agent is missing.

[OpenStack Infra (hudson-openstack)]

Fix proposed to branch: master
Review: https://review.openstack.org/589354

[OpenStack Infra (hudson-openstack)]

Reviewed: https://review.openstack.org/589354
Committed: https://git.openstack.org/cgit/openstack/tripleo-heat-templates/commit/?id=60a63edc22fc8e6470cf1d040f4fb4b7bcd9205d
Submitter: Zuul
Branch: master

commit 60a63edc22fc8e6470cf1d040f4fb4b7bcd9205d
Author: Juan Antonio Osorio Robles <email address hidden>
Date: Tue Aug 7 08:17:08 2018 +0300

    Add neutron metadata agent to the undercloud

    It was missing and it's necessary for the nova metadata API to work.
    Without this we don't have a working TLS everywhere setup, since it
    relies on this functionality.

    Change-Id: I24ff6f1b5acc428f001b2ca9b0bdbfa8ec121e52
    Closes-Bug: #1785744

[OpenStack Infra (hudson-openstack)]

This issue was fixed in the openstack/tripleo-heat-templates 9.0.0.0rc1 release candidate.