Create an element to allow using a dpkg manifest

Enable reusing of a dpkg manifest to pin package versions at build
time

Change-Id: I23e83268d282c972b335a8cf0dfc45030a0ab4ff
Factor out error behavior in dib-lint

Currently when dib-lint finds a problem it does something like:

 echo "ERROR: Problem found"
 rc=1

This is repetitive and error-prone since it's easy to forget to set
rc to actually fail the check.  This change makes those two steps
a single function call.

Change-Id: I40b5bf39348a69add1f955c49f310e3bda21be0e
Remove uneeded code from pkg-map

This patch removes a couple of lines of redundant code.  In Python,
the get method on a dictionary defaults the return value to None,
so the method never raises a key error.

https://docs.python.org/2/library/stdtypes.html#typesmapping

Change-Id: I180877f9be23d373cd63771bb3682d6587ec6fac
map-services: add openvswitch

OVS service is called:
 - openvswitch-switch on Debian/Ubuntu
 - openvswitch on RHEL/Fedora

This changes is needed to get the neutron element to work
on Debian/Ubuntu with systemd:
  I6e3df30dc3a6918f3a949a7dac47289ede5c3d1f

Change-Id: I2748a9db7f8ee456698187a9646bc7cda2256fe7
dpkg: local cache for .deb files

With this patch, /var/cache/apt/archives directory content is preserved.
The directory is actually a bind mount of the
~/.cache/image-create/apt/$DISTRO_NAME directory, much like what we do
for ccache.
You can use DIB_APT_LOCAL_CACHE=0 to disable this behavior.

This trivial change improve performance A LOT (>30%), even if a local
HTTP proxy because:
 - there is no need to copy again and again the same files
 - we avoid network latency

The patch has been tested with Debian and Ubuntu with every elements
from the tripleo-image-elements repository, the final size of the cache
directory is about 700MB per distribution subdirectory.

Change-Id: I4fab499493f734c7c546d4d23b1a98f0e7523a39
debian: fix network on Wheezy

source-directory ifupdown directive has been introduced in version
0.7.44. Wheezy comes with version 0.7.8.

Without this change, the eth0 interface will never get an IP address on
Wheezy.

Change-Id: If40ed3b82ca78280190b66c06a0a77bb71270d7d
avoid failure if /lib/firmware doesn't exist

On Debian, /lib/firmware is provided by optional packages like
firmware-iwlwifi or firmware-linux-free. That's why this directory
may not exist.
This change ensure the directory exist before trying to copy it
content.

Change-Id: Icf9eedf4148141c92e9171f16ae744b88a8d8519
Do not use DatasourceNone for precise cloud-init

The 'None' Datasource does not exist in precise 12.04 (which uses
cloud-init 0.6.3), so conditionally ensure that we are not including
this in the datasource_list in case we're building a precise image.

Partial-bug: 1329068
Change-Id: I6efb91e17bf896bbf7d67c31c4eb5098d5d61a71
Update README regarding Debian and OpenSUSE support

Change-Id: Ib66525f25cb138358f854492fbd665814d060cda
introduce $SYSTEMD_SYSTEM_UNIT_DIR

export $SYSTEMD_SYSTEM_UNIT_DIR to know where .service files should be
moved.
So far those files are moved directly in /usr/lib/systemd/system whereas
Debian use /lib/systemd/system.

We load the value from the systemd pkg-config file.

The patch don't use pkg-config directly for three reasons:
 - environment.d files are run before install.d and the other similar
 targets, making hard to install an additional dependency
 - the .pc file can easily be parsed using awk
 - pkg-config package name is not standard across the different
 supported distributions

$SYSTEMD_SYSTEM_UNIT_DIR default value is /lib because, as pointed by James
Slagle, /lib is actually a symlink to /usr/lib/ on Fedora and will work
for Debian and Fedora.

See: https://bugs.debian.org/719634

Change-Id: I413a92284e6a79e7fcdde99c5138bc3ce8e85e80
Merge "dpkg: local cache for .deb files"
Merge "Do not use DatasourceNone for precise cloud-init"
Merge "debian: fix network on Wheezy"
Element to remove unwanted kernel/initrd.

Remove unused kernel/initrd from the image.

Change-Id: If187ab9ff42b99f127897de761fd9685b37304fc
dpkg: support pkg-map in bin/install-packages

Updates the dpkg element's bin/install-packages script
so that if supports using pkg-map for package mapping.
To make use of the new change simply add the -m <element name>
to allow install-packages to know which element namespace to use
when installing packages.

Use of the new -m option is off by default.

As part of this change we also updated install-packages
to use getopt for in script argument parsing.

Change-Id: Idfc40f2d75828a0f09d227f0332ccef8f0183efc
opensuse: support pkg-map in bin/install-packages

Updates the opensuse element's bin/install-packages script
so that if supports using pkg-map instead of map-packages
for package mapping. To make use of the new change
simply add the -m <element name> to allow install-packages
to know which element namespace to use when installing packages.

Use of the new -m option is off by default.

As part of this change we also updated install-packages
to use getopt for in script argument parsing.

Change-Id: I56da8adf6c445c50c7642e221c6c11ba59330404
Update base element to make use of pkg-map

With this change package name to distro mappings used
within the base element are now stored in the top
level pkg-map file.

Additionally, all bin/install-packages commands are updated
to use the -m option so that the base element pkg-map
namespace is used by default.

Change-Id: I3bdbf987c8525f9ef67ca0c263651d6613f29ef0
Drop ending slash from DIB_CLOUD_IMAGES

The DIB_CLOUD_IMAGES variable in ubuntu's root.d is already used
everywhere with a /, so we can safely drop it from the default
value.

Change-Id: I39dbd3f4004052fcccb4131dc838759f4c82312a
Merge "Factor out error behavior in dib-lint"
Merge "map-services: add openvswitch"