MAAS bridge script does not handle post-up command changes from curtin (0.1.0~bzr399-0ubuntu1~16.04.1)

[Andrew McDermott]

Curtin version (0.1.0~bzr399-0ubuntu1~16.04.1) now emits post-up commands for aliases.

From the changelog @ https://launchpad.net/ubuntu/xenial/+source/curtin/+changelog

 curtin/net: use post-up for interface alias, resolve 120 second time out
      on Trusty when using interface aliases

If aliases are used in MAAS we get an /etc/network/interfaces file that looks like:

auto ens3
iface ens3 inet static
    address 192.168.20.201/24
    gateway 192.168.20.1
    mtu 1500
    post-up ifup ens3:1

auto ens3:1
iface ens3:1 inet static
    address 192.168.20.202/24

However, the MAAS bridge script does not parse post-up commands, leaving the name 'ens3:1' unchanged after bridging.

For example:

$ ./add-juju-bridge.py --interfaces-to-bridge="ens3 ens3:1"/etc/network/interfaces

auto ens3
iface ens3 inet manual
    mtu 1500
    post-up ifup ens3:1

auto br-ens3
iface br-ens3 inet static
    address 192.168.20.201/24
    gateway 192.168.20.1
    post-up ifup ens3:1
    bridge_ports ens3

auto br-ens3:1
iface br-ens3:1 inet static
    address 192.168.20.202/24

The alias names in the post-up commands should now be 'br-ens3:1'.

[Anastasia (anastasia-macmood)]

Removing 2.1 milestone as we will not be addressing this issue in 2.1.

[Anastasia (anastasia-macmood)]

This behavior is still present in 2.1-rc2.

[Canonical Juju QA Bot (juju-qa-bot)]

This bug has not been updated in 2 years, so we're marking it Low importance. If you believe this is incorrect, please update the importance.