Ubuntu
cloud-init package

Please revise files in /etc/cloud tree

Bug #1849557 reported by Mathieu Trudel-Lapierre
6
This bug affects 1 person
Affects Status Importance Assigned to Milestone
cloud-init (Ubuntu)
Triaged
Low
Unassigned

Bug Description

On a typical install of an Ubuntu system, and in particular on a Ubuntu Core system, there are various files under /etc/cloud.

Most of these files (especially on UC) appear to be default files that are unmodified, and are furthermore bind-mounted such that they may be writable (Ubuntu Core-specific).

Please revise the files in /etc/cloud. If the files are defaults that are otherwise used unmodified on systems, they probably should live in a tree under /usr/share, which is the commonly used location for system defaults and other architecture-independent files.

Mathieu Trudel-Lapierre (cyphermox)
tags: added: writable-etc
Paride Legovini (paride)
Changed in cloud-init (Ubuntu):
status: New → Triaged
importance: Undecided → Low
Revision history for this message
Ryan Harper (raharper) wrote :

# find /etc/cloud
/etc/cloud
/etc/cloud/cloud.cfg.d
/etc/cloud/cloud.cfg.d/05_logging.cfg
/etc/cloud/cloud.cfg.d/README
/etc/cloud/cloud.cfg.d/90_dpkg.cfg
/etc/cloud/build.info
/etc/cloud/cloud.cfg
/etc/cloud/templates
/etc/cloud/templates/chef_client.rb.tmpl
/etc/cloud/templates/ntp.conf.sles.tmpl
/etc/cloud/templates/hosts.freebsd.tmpl
/etc/cloud/templates/timesyncd.conf.tmpl
/etc/cloud/templates/chrony.conf.fedora.tmpl
/etc/cloud/templates/chrony.conf.sles.tmpl
/etc/cloud/templates/ntp.conf.fedora.tmpl
/etc/cloud/templates/hosts.redhat.tmpl
/etc/cloud/templates/hosts.debian.tmpl
/etc/cloud/templates/chrony.conf.opensuse.tmpl
/etc/cloud/templates/sources.list.ubuntu.tmpl
/etc/cloud/templates/chrony.conf.ubuntu.tmpl
/etc/cloud/templates/ntp.conf.debian.tmpl
/etc/cloud/templates/hosts.suse.tmpl
/etc/cloud/templates/chrony.conf.rhel.tmpl
/etc/cloud/templates/ntp.conf.opensuse.tmpl
/etc/cloud/templates/ntp.conf.rhel.tmpl
/etc/cloud/templates/sources.list.debian.tmpl
/etc/cloud/templates/chrony.conf.debian.tmpl
/etc/cloud/templates/ntp.conf.ubuntu.tmpl
/etc/cloud/templates/resolv.conf.tmpl

templates could go to /usr/share, the rest are expected to be writable, save build.info; but that's part of the image build rather than cloud-init owned/generated files.

Revision history for this message
Scott Moser (smoser) wrote :

The intent of the template files is that they *can* be user editable.
For example:
# head /etc/cloud/templates/sources.list.ubuntu.tmpl
## template:jinja
## Note, this file is written by cloud-init on first boot of an instance
## modifications made here will not survive a re-bundle.
## if you wish to make changes you can:
## a.) add 'apt_preserve_sources_list: true' to /etc/cloud/cloud.cfg
## or do the same in user-data
## b.) add sources in /etc/apt/sources.list.d
## c.) make changes to template file /etc/cloud/templates/sources.list.tmpl

# See http://help.ubuntu.com/community/UpgradeNotes for how to upgrade to

Perhaps the behavior could be changed to be like systemd, with files in /etc/ masking files in /usr .

then the files could be shipped in /usr/ and the user still able to mask them by adding files in /etc.

Revision history for this message
Dan Watkins (oddbloke) wrote :

I agree with Scott that putting them in /usr with overrides from /etc is the best path forward.

Francis Ginther (fginther)
tags: added: id-5cf575c4e6712e6048974772
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