Trouble adding IPv6 to installed Keystone charm.

[Ryan Beisner]

Hi Ken,

It is possible that you've hit a bug.  But to know for sure, can you tell
us the output of this command on the unit?:
    ip addr show eth0

Also feel free to raise a bug [1] with further details and/or chat on
freenode IRC, the #openstack-charms channel.
[1] https://bugs.launchpad.net/charm-keystone/+filebug

Cheers,

Ryan


On Mon, Dec 4, 2017 at 1:25 PM, Ken D'Ambrosio <ken at jots.org> wrote:

> Hey, all.  Looking to enable IPv6 endpoints on our Newton cloud.  "juju
> config keystone" shows this:
>
>  prefer-ipv6:
>     description: |
>       If True enables IPv6 support. The charm will expect network
> interfaces
>       to be configured with an IPv6 address. If set to False (default) IPv4
>       is expected.
>       .
>       NOTE: these charms do not currently support IPv6 privacy extension.
> In
>       order for this charm to function correctly, the privacy extension
> must be
>       disabled and a non-temporary address must be configured/available on
>       your network interface.
>     type: boolean
>     value: true
>
> It had originally been false.  I manually added 2004::100 to eth0 on my
> keystone host, and changed the value to true.  The Juju log on the Keystone
> host comes back with this:
>
> 2017-12-04 19:16:06 INFO config-changed Exception: Interface 'eth0' does
> not have a scope global non-temporary ipv6 address.
>
> eth0 looks like this:
> eth0      Link encap:Ethernet  HWaddr 00:16:3e:7f:eb:70
>           inet addr:172.23.248.38  Bcast:172.23.248.63
> Mask:255.255.255.192
>           inet6 addr: 2004::100/64 Scope:Global
> [...]
>
> I've googled like crazy, and can't find anything that really seems to fit
> the bill for "non-temporary ipv6 address", except in a different charm (
> https://api.jujucharms.com/v5/~sdn-charmers/trusty/contrail
> -analytics-31/archive/hooks/charmhelpers/contrib/network/ip.py) which
> says:
>
>     We currently only support scope global IPv6 addresses i.e.
> non-temporary
>     addresses. If no global IPv6 address is found, return the first one
> found
>     in the ipv6 address list.
>
> Which seems to imply that a global IPv6 address *is* non-temporary by
> definition, which confuses me even more as to what's broken.
>
> Any pointers here?
>
> Thanks kindly,
>
> -Ken
>
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