Make sure rngd, a hardware RNG entropy gatherer daemon, is installed on
all DIB-built Red Hat family distro images. rngd comes installed by
default in a typical base installation as it's proven to help speed
things up.
Nova attaches the virtio-rng-pci device to VMs. virtio-rng-pci is a
device that provides feed random data. However, it is of little to no
use if the virtual machine is not configured to make use of given
device. That is where rngd can help by facilitating entropy to the pool
from virtio-rng-pci.
$ openstack image set --property hw_rng_model=virtio [...]
$ openstack flavor set --property hw_rng:allowed=True [...]
DIB-built minimal images do not come with rngd installed. This patch
makes sure the daemon is installed. Its systemd service comes already
enabled.
Change-Id: I34a989dbfc57d4c98113ac25c81dfb500945ff0a
The current implementation evauates the dib-init-system
script too early. Also it looks that there is no simple
way of getting the info about the init system automatically:
another element can install (later on) a different
init system. Therefore the only reliable way of setting
this is manual.
Change-Id: I6e9ffa1bdb3154f488f4fd335b197699b86aacd4
Signed-off-by: Andreas Florath <andreas@florath.net>
The libselinux packages etc don't exist for Python 2 on Centos 8 [1].
Ensure the package map installs the python3 versions.
We could probably invert the logic now, and make it so Centos 7 is the
"special" version that overrides things to install python2. Left
alone for now to avoid changing too much at once.
[1] https://bugs.centos.org/view.php?id=16458
Change-Id: I944cf4f2902c28728aa5bb9e2a00b3eef122d52e
Install the Python 3 libselinux packages for Fedora platforms. I
think this is the right choice; Fedora is a Python-3 only distro so we
shouldn't default to installing the python2 libraries.
This has a practical effect if you're using Ansible with
ansible_python_interpreter=/usr/bin/python3 as it needs these
packages.
There is some small chance of breakage if you're using Ansible still
with Python 2, I guess. In infra I notice we bring this in with
"zuul-worker" project-config element. On balance, I think that if you
need the Python 2 packages for some reason, it should be a special
install and not part of redhat-common.
Change-Id: Ibcec0b3660d01b861838c2ae87ca43d98953ce32
Make a version-less RHEL element to handle both '7' and '8' DIB_RELEASE.
The element usage should align with other elements which operate in the
same way such as the Fedora element.
Additionally, this patch adds support for RHEL8 that operates with
Python 3.
As of now, users of diskimage-builder will still be able to use the
'rhel7' element, or migrate to 'rhel' and specify their respective
DIB_RELEASE value.
* mount the xfs file-system for extraction as read-only. vaguely
based on explaination in [1] and the fact we only read the image
data into a tar, so can ignore this.
XFS (dm-1): Superblock has unknown read-only compatible features (0x4) enabled.
* Use the redhat system python as the dib-python version. dib was
ahead of it's time making an abstracted python interpreter for
system work ;) the system python should work for running the various
dib element scripts.
[1] https://unix.stackexchange.com/questions/247550/unmountable-xfs-filesystem
Redhat-Bug: https://bugzilla.redhat.com/show_bug.cgi?id=1700253
Co-Authored-By: Ian Wienand <iwienand@redhat.com>
Change-Id: I90540675c70bb475d9db2ae24f81c648a31f3f95
Per the bug report, these seem to be causing issues with maintaining
file capabilities. They aren't necessary so let's just remove them.
Change-Id: I06c90fdc85655986142b936cadbe04d75dd27427
Closes-Bug: 1714604
Deploying many nodes with the generated image shouldn't have the same
/etc/machine-id so clearing it and letting systemd generate a new
id upon first boot seems to be the best way to achieve this.
Change-Id: I73d0577d31464521b3989312fd9d982a1312a268
Closes-bug: 1707526
Closes-bug: 1672461
Change I008f8bbc9c8414ce948c601e3907e27764e15a52 has shown that we
build redhat images without the "semange" tool available, which comes
from the policycoreutils-python package (see also
I3f9e2c322d042a5dddba33451c0fc21a4d32a88a).
I403e7806ae10d5dd96d0727832f4da20e34b94c7 added some of the selinux
libraries to yum-minimal for ansible support, but not to others.
Given both these changes, it seems that selinux[-targeted],
libselinux[-python] and policycoreutils[-python] can reasonably
considered part of all base images. Move the selinux related packages
into redhat-common.
This also adds it explicitly to install_test_deps.sh. It was actually
being dragged in by the docker install, but is a required component
for building (should be in bindep, but not there with that yet).
Change-Id: Idd4ae71ee6deee84604823b6b5dc4a845f316e01
Related-Bug: #1707788
It turns out dnf argparse can't handle negative numbers without "=".
It's actually documented in the man page
--latest-limit <number> ... If <number> is negative skip <number>
of latest packages. If a negative number is used use syntax
--latest-limit=<number>
But who reads that :) This started failing with Fedora 26
Change-Id: I884af94c07fa11b010f69863047a04711b14f21e
Currently we have all our elements and library files in a top-level
directory and install them into
<root>/share/diskimage-builder/[elements|lib] (where root is either /
or the root of a virtualenv).
The problem with this is that editable/development installs (pip -e)
do *not* install data_files. Thus we have no canonical location to
look for elements -- leading to the various odd things we do such as a
whole bunch of guessing at the top of disk-image-create and having a
special test-loader in tests/test_elements.py so we can run python
unit tests on those elements that have it.
data_files is really the wrong thing to use for what are essentially
assets of the program. data_files install works well for things like
config-files, init.d files or dropping documentation files.
By moving the elements under the diskimage_builder package, we always
know where they are relative to where we import from. In fact,
pkg_resources has an api for this which we wrap in the new
diskimage_builder/paths.py helper [1].
We use this helper to find the correct path in the couple of places we
need to find the base-elements dir, and for the paths to import the
library shell functions.
Elements such as svc-map and pkg-map include python unit-tests, which
we do not need tests/test_elements.py to special-case load any more.
They just get found automatically by the normal subunit loader.
I have a follow-on change (I69ca3d26fede0506a6353c077c69f735c8d84d28)
to move disk-image-create to a regular python entry-point.
Unfortunately, this has to move to work with setuptools. You'd think
a symlink under diskimage_builder/[elements|lib] would work, but it
doesn't.
[1] this API handles stuff like getting files out of .zip archive
modules, which we don't do. Essentially for us it's returning
__file__.
Change-Id: I5e3e3c97f385b1a4ff2031a161a55b231895df5b
