GitLab

Modify pithcat to be able to parse and work with URLs of the form:
`pithosmap://hash/size' which are neeed for archipelagos.

Stratos Psomadakis suggested to shutdoen the helper VM using the `o'
Magic SsysRq key

Make sure local variables are defined as local before they get assigned.
Having variables get defined and assigned in one line like this:

local var=foo

can sometimes cause problems. For example, this line:

local var=$(false)

will return 0 and the script will not fail if set -x is defined.

snf-image-update-helper will only install a pkg retrieved from the
apt unless -p option is specified.

This can be used to enable or disable the version check between
snf-image-host and snf-image-helper at the end of the update-helper
script.

Using package caches to create the helper image is dangerous now that
snf-image-helper is automatically retrieved.

Use squeeze instead of stable

The files hosted in this directory will be added in the
/etc/apt/preferences.d directory of the helper image before multistrap
runs.

AssignHostname task did not search for Unattend.xml in a case
insensitive way.

Make sure that if log_error is executed like this:

log_error "text" "text"

The 2 arguments get merged before being fed to the monitoring system.

In image helper, check if decode-properties.py returned 0 and log
the error if this is not the case.

If unattend.xml is present in the windows image, use this one unless
USE_DEFAULT_UNATTEND is specified as an image property.

If an error occurs, the temporary helper image under
/var/lib/snf-image-helper should be removed.

Conflicts:

	snf-image-host/snf-image-update-helper.in

Fix a bug where the helper will not send a image-helper-error msg
if an error occures when running snf-image-helper main script and
not one of the configuration tasks.

Conflicts:

	snf-image-helper/common.sh

It should have been changed in commit 696deeec

Do not send through the monitor pipe the error messages. They may
contain internal sensitive information. Create a new report_error
function for sending errors through the monitoring pipe.

Conflicts:
	snf-image-host/create
	snf-image-host/snf-image-update-helper.in

Check if the users stated in the USERS image property do actually
exist.

snf-image-update-helper should check when creating a helper VM if
an snf-image-helper package was installed from an apt repository
through multistrap. If this is the case, snf-image-update-helper
should not complain about not finding the HELPER_PKG.

By default this directory is $(LOCALSTATEDIR)/cache/snf-image/helper

This is done for security reasons. The options may contain sensitive
data like the Pithos DB password and while the program (pithcat) is
running the whole command line is exposed to everyone through ps.

Hundred of warnings like this: `WARN: While quoting value for
'<registry_key>', warning returned: Data could not be interpreted,
quoting raw buffer.' are outputed when reglookup reads the registry
of a Windows 2012 system.

When snf-image-update-helper runned, it moved the kernel and the
initrd file out of the helper VM image. With this patch,
snf-image-update-helper will copy the kernel to the host without
removing it from the image.

You can disable this behaviour by defining the DO_SYNC image property.