Add attribute 'first_address' to OS::Neutron::Port

[Alexander Chudnovets]

For now it's quite tricky to get first IP address from OS::Neutron::Port:

{ "Fn::Select": ["ip_address", { "Fn::Select": [0, { get_attr: [ server1_port, fixed_ips ] }] }] }

And currently it doesn't work in havana (https://review.openstack.org/#/c/56829/).

So may be we can add an extra attribute like 'first_address' in OS::Nova::Server?

[Clint Byrum (clint-fewbar)]

This would need to be address_ipv4 or something like that, since IIRC the only way you get multiple addresses is ipv4 or ipv6.

[Sergey Kraynev (skraynev)]

Clint, your solution is:
1. creating one attribute with name "address_ip"
2. this attribute return list or dict of two addresses ipv4 and ipv6
3. these ip addresses are fixed.
Am I right?

[Clint Byrum (clint-fewbar)]

No I think an attribute first_address_ipv4 and another, first_address_ipv6, would be useful and work for 99% of users.

[OpenStack Infra (hudson-openstack)]

Fix proposed to branch: master
Review: https://review.openstack.org/67836

[Sergey Kraynev (skraynev)]

Hm. I suppose, that we should close this bug according to SteveBaker's comment on https://review.openstack.org/67836.
As additional will be good open bug with removing first_address attribute for OS::Nova::Server

[Steve Baker (steve-stevebaker)]

It is now possible to do get_attr: [server1_port, fixed_ips, 0, ip_address]

[Steve Baker (steve-stevebaker)]

And yes, OS::Nova::Server first_address can now be deprecated