cc_ssh.py doesn't honor host key paths in sshd_config

[ubuntu-server-builder]

This bug was originally filed in Launchpad as LP: #1267505

Launchpad details

affected_projects = []
assignee = None
assignee_name = None
date_closed = None
date_created = 2014-01-09T15:14:41.721282+00:00
date_fix_committed = None
date_fix_released = None
id = 1267505
importance = medium
is_complete = False
lp_url = https://bugs.launchpad.net/cloud-init/+bug/1267505
milestone = None
owner = cmsj
owner_name = Chris Jones
private = False
status = triaged
submitter = cmsj
submitter_name = Chris Jones
tags = []
duplicates = []

Launchpad user Chris Jones(cmsj) wrote on 2014-01-09T15:14:41.721282+00:00

If one has configured sshd_config to place host keys in a non-default location (e.g. on some persistent volume that survives instance termination/recreation), cc_ssh.py will still create keys on the first boot in /etc/ssh/

[ubuntu-server-builder]

Launchpad user Clint Byrum(clint-fewbar) wrote on 2014-01-14T05:11:23.875289+00:00

Simple solution: allow cloud.cfg to specify the path.

Slightly harder but way cooler: parse /etc/ssh/sshd_config

[ubuntu-server-builder]

Launchpad user Scott Moser(smoser) wrote on 2014-01-14T22:05:48.893486+00:00

well, without testing i did the attached branch.
give it a shot, see what you tihnk.
it might work.

[ubuntu-server-builder]

Launchpad user Clint Byrum(clint-fewbar) wrote on 2014-01-15T00:01:26.228311+00:00

Looks pretty good Scott. I'll try it out tomorrow if Chris doesn't beat me to it. :)