maas mirror values are overwritten by cloud-init

[Scott Moser]

As described very well at [1], the user can modify snippets/maas_proxy and set the mirror used during install.
However, immediately upon first boot, cloud-init will overwrite the /etc/apt/sources.list with its own values.

maas needs to be able to tell cloud-init either:
 a.) do not update update sources.list
      cloud-config of 'apt_preserve_sources_list: true'
 b.) configure cloud-config to use/select the same mirror used in installation
     cloud-config of 'apt_mirror'
      (note bug 1006963 affects the viability of this option).

--
[1] http://askubuntu.com/questions/144393/how-to-let-maas-cloud-init-client-select-internal-mirror

Related bugs:
 * bug 1006963: sources.list configuration does not cover security

[Julian Edwards (julian-edwards)]

This is on the roadmap for 12.10

[Scott Moser (smoser)]

I guess, turning this bug report on its head, cloud-init could be expected to read the preseed values given to the installer, and possibly use those. I don't know tha tI like that though, because one is configuration of the installer system, and one is configuration of the "new instance". Which, in the most common case for cloud-init are separate things.

[Scott Moser (smoser)]

this was fixed in maas trunk with https://code.launchpad.net/~smoser/maas/preserve-sources-list/+merge/127825