radvd not installed in neutron_agents_container

[mrstanwell]

The radvd package needs to be present in the neutron_agents container in order to support IPv6 tenant networks. Without it, tenant instances cannot get IPv6 prefixes. If I install it myself and create an IPv6 subnet, tenants get router advertisements and can configure addresses via SLAAC.

[mrstanwell (mrstanwell)]

Grr. Forgot to note that this was found in 11.0.4, but still apparently affects kilo HEAD since I still don't see radvd being installed.

[Jean-Philippe Evrard (jean-philippe-evrard)]

Is this really needed? I thought dnsmasq handled both the slaac autoconfiguration and dhcpv6.

[mrstanwell (mrstanwell)]

According to http://docs.openstack.org/networking-guide/adv_config_ipv6.html, setting ipv6_ra_mode and ipv6_address_mode to either slaac or dhcpv6-stateless means that guest instances will get addresses using "OpenStack managed radvd". In my installation at least, dnsmasq wasn't sending router advertisements. When I created a v6 subnet, the sudo log on neutron_agents_container showed an attempt to start radvd. So given all that, I assumed that radvd was a requirement. Just installing it and re-creating the subnet got me RAs and successful slaac autoconf.

I'm fine with using dnsmasq instead, if that's a viable alternative in openstack. However, I suppose that means something else needs to change to enable RA when the v6 subnet is created.

[OpenStack Infra (hudson-openstack)]

Fix proposed to branch: master
Review: https://review.openstack.org/289561

[OpenStack Infra (hudson-openstack)]

Reviewed: https://review.openstack.org/289561
Committed: https://git.openstack.org/cgit/openstack/openstack-ansible-os_neutron/commit/?id=236ff32ca3559bd69a5f2c7dae84bd2fae5c4768
Submitter: Jenkins
Branch: master

commit 236ff32ca3559bd69a5f2c7dae84bd2fae5c4768
Author: Major Hayden <email address hidden>
Date: Mon Mar 7 14:55:07 2016 -0600

    Add radvd to neutron containers

    The radvd daemon supports additional IPv6 features that
    dnsmasq does not, such as unicast router announcements. This patch
    installs radvd within the neutron containers.

    Closes-Bug: 1492080

    Change-Id: Ia3ff88c19e878015331af9446eca6393c85e1ca9

[OpenStack Infra (hudson-openstack)]

Fix proposed to branch: liberty
Review: https://review.openstack.org/291826

[OpenStack Infra (hudson-openstack)]

Reviewed: https://review.openstack.org/291826
Committed: https://git.openstack.org/cgit/openstack/openstack-ansible/commit/?id=17f59f0beafabfde5f5a529a7bdb20ffe5c784ad
Submitter: Jenkins
Branch: liberty

commit 17f59f0beafabfde5f5a529a7bdb20ffe5c784ad
Author: Major Hayden <email address hidden>
Date: Fri Mar 11 11:16:05 2016 -0600

    Add radvd to neutron containers

    The radvd daemon supports additional IPv6 features that
    dnsmasq does not, such as unicast router announcements. This patch
    installs radvd within the neutron containers.

    Closes-Bug: 1492080

    Change-Id: I8fd2addc2a3acd9e2a3648daf972c3b85333f1a2
    (Manual backport of Ia3ff88c19e878015331af9446eca6393c85e1ca9)

[Doug Hellmann (doug-hellmann)]

This issue was fixed in the openstack/openstack-ansible 12.0.8 release.

[Doug Hellmann (doug-hellmann)]

This issue was fixed in the openstack/openstack-ansible 12.0.9 release.

[Davanum Srinivas (DIMS) (dims-v)]

This issue was fixed in the openstack/openstack-ansible 12.0.11 release.

[OpenStack Infra (hudson-openstack)]

This issue was fixed in the openstack/openstack-ansible 12.0.8 release.