Harden sshd configuration by adding KexAlgorithms, Ciphers and MACs for sshd,
following good pratices on https://infosec.mozilla.org/guidelines/openssh
Change-Id: I3051320d867a5033e82deef10c5e723ca9829884
Co-Authored-By: Nicolas Hicher <nhicher@redhat.com>
Currently diskimage-builder supports two ways to specify the image
size. One is defining a fixed image size using DIB_IMAGE_SIZE, the
other one is auto-detection while adding a security margin of 60% as
free space. This means when building larger images (e.g. >100GB) with
unknown size upfront we end up with much wasted space, IO and network
traffic when uploading the images to several cloud providers. This can
be optimized by adding a third way by defining DIB_IMAGE_EXTRA_SIZE to
specify the free space in GB. This makes it possible to easily build
images of varying sizes while still minimizing the overhead by keeping
the free space constant to e.g. 1GB.
Change-Id: I114c739d11d0cfe3b8d8abc6df5ff989edfb67f2
In many cases, the statically sized 64MB journal is far below the
e2fstools default calculation[0] which calls for a 64MB journal only
on filesystems smaller than 16GB. On bare metal in particular, the
correct default journal size will often be in the 512MB-1GB range.
Since we cannot know what the target system is, this should be a
tunable parameter that the user can set depending on the intended
image usage.
Add a DIB_JOURNAL_SIZE envvar and --mkfs-journal-size parameter
to the image creation so users can override the default journal
size.
[0] https://git.kernel.org/pub/scm/fs/ext2/e2fsprogs.git/tree/lib/ext2fs/mkjournal.c#n333
Change-Id: I65fa13a088eecdfe61636678578577ea2cfb3c0c
This plumbs through an "--use-nm" flag to glean which instructs it to
setup interface bringup with NetworkManager rather than legacy network
enablement scripts.
In this case, install the NetworkManager package. In the non-nm case,
also install the network-scripts for Fedora 29 -- this has stopped
being installed by default (it's been deprecated since forever).
As noted in the docs, this is currently really only relevant on the
supported rpm distros which are using the ifcfg-rh NetworkManager
plugin to effectively re-use old config files. However,
NetworkManager has similar plugins for other platforms, so support can
be expanded if changes are proposed.
Depends-On: https://review.openstack.org/618964
Change-Id: I4d76e88ce25e5675fd5ef48924acd09915a62a4b
Provide a "when" option that provides for not installing packages
based on a = or != match on an environment variable.
Unit tests are added.
Change-Id: Ifa824dccaff69fd447f45d54cb4a3083bcabdd86
This allows nodes with remote devices configured via iBFT to be
correctly used during Ironic introspection and deployment,
at least for non-multipath configurations.
The new element is added as a dependency for ironic-agent.
Change-Id: If3dac6504d26535593f12e851092065b688ef696
install-packages is running before install.d phase, there is a chance
that installing a package like "container-selinux" will failed the
build, moving "selinux-permissive" to run at pre-install stage make
more sense.
Change-Id: I32f988be725d4b385c3765c47a00cd57c53d7d71
I'm not really sure why I originally had --logfile also log to stdout
in I202e1cb200bde17f6d7770cf1e2710bbf4cca64c, but it seem
counter-intuitive (indeed, I just tripped myself up thinking that in a
devstack job "--logfile" would put the logs into a separate file and
avoid the stdout logging, and I wrote it!).
Make it so specifying a --logfile puts dib into quiet mode for stdout.
Explicitly overriding DIB_QUIET will allow both if someone wants that.
Change-Id: I3279c9253eee1c9db69c958b87a0ce73efc0be9b
While trying to get docker image pre-caching to work we couldn't get a
docker daeomon to run within the chrooted environment. However we got
docker running with the help of bwrap outside of the chrooted
environment. The only option so far for this is the block-device.d
phase. But this has the problem that it runs after the image size has
been calculated. This leads to broken builds if the docker images
being pulled are big.
This can be solved by adding a post-root.d phase that runs outside the
chroot but before the image size calculation.
Change-Id: I36c2a81e2d9f5069f18ce5b0d52c5f1c7212c3ae
In exploring Gentoo caching, it was realised that we have no way to
bind mount the cache into the finalised image for the finalise.d
phases.
By adding a pre-finalise.d phase that runs outside the chroot, we can
mount outside things into the hierarchy at $TMP_BUILD_DIR/mnt which
are then seen by the in-chroot finalise.d phase.
This is similar to the pre-install phase
Change-Id: I9d782994843383ddf90f62c40498af9925fd9558
The grub.cfg has two variables [1]
GRUB_CMDLINE_LINUX : used on all boots
GRUB_CMDLINE_LINUX_DEFAULT : additionally used on all "normal" boots
The problem with I2298675dda1f699c572b3423e7274bc8bd7c1c9d is that it
appened the values in DIB_BOOTLOADER_DEFAULT_CMDLINE to both of these,
resulting in duplicated arguments. I don't think we considered that
GRUB_CMDLINE_LINUX_DEFAULT actually already appends to the
GRUB_CMDLINE_LINUX values.
Make DIB_BOOTLOADER_DEFAULT_CMDLINE only append itself to
GRUB_CMDLINE_LINUX_DEFAULT. That seems to line up sensibly with the
name of the variable.
Documentation is enhanced around this, and a releasenote added.
[1] https://help.ubuntu.com/community/Grub2/Setup
Change-Id: I76b5442a9090c19a6540ed2d4ab324546f241ebf
Closes: #1791736
This element will replace modprobe-blacklist element. It wil
still have the blacklist functionality, but it also adds
the feature of passing a complete file with settings to the
modprobe.d directory. Adding this functionality, that will
allow elements that depends on this module, to just copy the
specified files to the final directory.
Change-Id: I9a44f7d11520b8b1e604956d3c1db2fc7e2bf457
This adds support for a GPT label type to the partitioning code. This
is relatively straight-forward translation of the partition config
into a sgparted command-line and subsequent call.
A unit test is added based on a working GPT/EFI configuration and the
fedora-minimal functional test is updated to build a single-partition
GPT based using the new block-device-gpt override element. See notes
in the sample configuration files about partition requirements and
types.
Documentation has been updated.
Co-Authored-By: Marcin Juszkiewicz <marcin.juszkiewicz@linaro.org>
Change-Id: I6b819a8071389e7e4eb4874ff7750bd192695ff2
As described, we want to set the default label for XFS disks to the
shorter value.
For example, you hit this when setting the old FS_TYPE environment
variable to 'xfs' (which sets the "root-fs-type" parameter, which gets
passed through to 'type'; but does not set a default label).
Change-Id: I41dce6e25766562db4366021309b8c2b74a8ab80
Closes-Bug: 1742170
The installed pip can be an older version which does not support
the -c argument. Therefore, upgrade pip before using -c.
Change-Id: If18d8ea822a62c8551c9c4d47354d58b0299fed2
Closes-Bug: 1744403
This provides a basic LVM support to dib-block-device.
Co-Authored-By: Ian Wienand <iwienand@redhat.com>
Change-Id: Ibd624d9f95ee68b20a15891f639ddd5b3188cdf9
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
Fedora 26 is now the latest release:
https://fedoraproject.org/wiki/Releases/26/Schedule
We are building and using these in infra now
Change-Id: I012c2d28255be274e88abc2751d968bafaf76fbb
Depends-On: Ieba5f69020a13681074f72cfca2955071801b63a
Signed-off-by: Paul Belanger <pabelanger@redhat.com>
We added the DIB_distro_DISTRIBUTION_MIRROR arguments with
I92964b17ec3e47cf97e3a3091f054b2a205ac768 as a way that we could
source a list of mirrors and then have the distro elements choose
which one applied to them.
However, this hasn't worked out to be so useful. The
openstack-ci-mirrors element is working as a mirror setup script -- it
translates the openstack CI mirror list variables into the generic
"DIB_DISTRIBUTION_MIRROR" as appropriate for each distro's build.
Also, it turns out there's other things that need to be done, such as
turning off gpg checking, which mean the idea of "just export
variables" hasn't turned out as valid ... you need actual code
involved to get it right.
AFAICT we never actually documented these, and they do not seem to be
in use. They have caused considerable confusion when dealing with new
platforms as we try to keep consistency. Remove them.
[1] http://codesearch.openstack.org/?q=DIB_.*_DISTRIBUTION_MIRROR&i=nope&files=&repos=
Change-Id: Ifc4ab700631ffdfbe790068558f670f9a11dde5e
Several people have popped up in IRC recently with failures in these
elements. Without Python 2.7 available in the image they are
unsupported (OpenStack hasn't supported it for a long time). Remove
these to avoid further confusion.
The centos/centos7 DISTRO split that has happened with centos-minimal
is unfortunate but I don't think it helps to rename centos7/rhel7 ATM.
To summarise; DISTRO=centos7 means image based build,
DISTRO=centos && DIB_RELEASE=7 means the minimal build.
In the future, I think it is important that the minimal builds and
image builds set the same DISTRO. This reflects that "upper" layers
shouldn't care about the exact building of the lower layers. I see
CentOS 8 going one of two ways
1) the changes are so significant, we start separate centos8 /
centos8-minimal elements. They both set DISTRO=centos8 (and
DIB_RELEASE to point-release maybe?). This means we have to update
all "if DISTRO == centos || DISTRO == centos7" branches to also check
for "centos8". Evenually (!) "centos" goes away for versioned DISTRO
only
2) we restore centos element with DISTRO=centos and DIB_RELEASE=8, and
centos-minimal remains the same. This means we have to audit all "if
DISTRO == centos" calls to make sure they're appropriate for version 8
(stick a "&& DIB_RELEASE=7" on them all basically).
I'm not sure we can fully decide until we start to see excatly how the
distro switching/matching bits look, but (2) is consistent with Ubuntu
and probably the preferred solution.
Some "rhel" parts have been cleaned up. More could be done in
rhel-common, but given our lack of coverage of that I'd prefer to
leave it for now.
Change-Id: I6ea784116ef59ca22878c8512c963f29c815a00a
This adds a devstack-inspired output filter to standardise
timestamping.
Currently, python tools timestamp always (timestamp setup in
logging_config.py) but all the surrounding bash does not.
We have extra timestamps added in run_functests.sh for our own
purposes to get the bash timestamps; but this ends up giving us
double-timestamps for the python bits. Additionally, callers such as
nodepool capture our output and put their own timestamps on it, and
again have the double-timestamps.
This uses a lightly modified outfilter.py from devstack to standardise
this.
All output is run through this filter, which will timestamp it. I
have removed the places where we double-timestamp -- logging_config.py
and the prefix in dib-run-parts.
An env option is added to turn timestamps off completely (does not
seem worth taking up a command-line option for). For callers like
nodepool, they can set this and will just have their own timestamps as
they collect the lines.
Since all logging is going through outfilter, it's easy to add a
--logfile option. I think this will be quite handy; personally I'm
always redirecting dib runs to files for debugging.
I've also added a "quiet" option. I think this could be useful in
run_tests.sh if we were to start logging the output of each test to
individual files. This would be much easier to deal with than the
very large log files we get (especially if we wanted to turn on
parallel running...)
Change-Id: I202e1cb200bde17f6d7770cf1e2710bbf4cca64c
This element has not been functioning correctly for some time due to
an incorrect path to select-boot-kernel-initrd (should be /usr/local/bin).
The dracut-regenerate element can be used to regenerate dracut ramdisks
and is more flexible than this element.
Change-Id: I33d555ffd4a92b2948b2ea4a66b151f0422ccb8c
Closes-Bug: #1688546
This patch finalizes the block device refactoring. It moves the three
remaining levels (filesystem creation, mount and fstab handling) into
the new python module.
Now it is possible to use any number of disk images, any number of
partitions and used them mounted to different directories.
Notes:
* unmount_dir : modified to only unmount the subdirs mounted by
mount_proc_sys_dev(). dib-block-device unmounts
$TMP_MOUNT_PATH/mnt (see I85e01f3898d3c043071de5fad82307cb091a64a9)
Change-Id: I592c0b1329409307197460cfa8fd69798013f1f8
Signed-off-by: Andreas Florath <andreas@florath.net>
Closes-Bug: #1664924
This change move "do_extra_package_install" from pre-install to install
phase.
Extra packages are added by user request using the flag "-p", This
package should not be something the elements depend on.
The reason behind this patch is to move the extra package install to
a proper phase, Also more reasonable if base element run package update
to be before we install extra packages.
Change-Id: I68cc773aba9aa01743f0dda9f4e635e4cac2a282
The dib-run-parts element was copying our internal version of
dib-run-parts into /usr/local/bin to be used running scripts inside
the target chroot. However, it never cleaned up after itself. This
means all images were left with an unmanaged local install of
dib-run-parts.
This copies dib-run-parts into the hooks directory of the chroot and
runs it from there. It is cleaned up automatically on the exit path.
The dib-run-parts element is no longer required and it has been
removed from all dependencies. It is left with a deprecation notice
in the README. For compatability we convert it to simply install
dib-utils.
Codesearch shows no users depending on this unintentional implicit
install. Note os-refresh-config depends on dib-utils and thus will
have an explicitly installed version.
Partial-Bug: #1673144
Change-Id: Ia2e96c00a4246c04beb96c17f83b8aefb69219ca
It was an oversight during v2 development for dib to start providing
dib-run-parts. The intention was for dib to use a vendored
dib-run-parts directly from $_LIB and have no dependencies on
dib-utils at all. By exporting dib-run-parts, we created an
unintentional conflict with the dib-utils package which provides the
same script.
Tools that depend on dib-utils are unaffected by this
(os-refresh-config).
The only tool that installs diskimage-builder and then assumes
dib-run-parts is available in the path is instack. I have proposed
Ibfe972208df40fa092b11b5419043524c903f1b4 to modify that to use our
internal version.
Change-Id: I149c345d38d761a49b3a6ccc4833482f09f1cd05
On Debian Jessie and Debian Stretch systemctl is in /bin.
If the package systemd-sysv is not installed the script
dib-init-system did not find the init system.
This patch fixes the problem: it also looks in /bin
for systemctl and if found decides for systemd.
Change-Id: I5a18052a070bad5e16b14672237a1e2b38513949
Signed-off-by: Andreas Florath <andreas@florath.net>
Currently there is no description of dependencies in the generated
documentation of the elements: therefore a user of an element does not
know which other elements are automatically included and e.g. which
configuration options are available. In addition there are some
copy&pastes of parts of the README.rst scattered thought different
Ubuntu and Debian specific elements.
This patch adds a semi-automatic generation of dependency information
of all elements. Nevertheless these are not automatically included.
The author of the element's README.rst can decide if and where the
dependency information should appear and can use the descriptor
.. element_deps::
for this.
This patch adds the dependency information for some Debian and
Ubuntu patches - and creates the base for later removing the
duplicated parts.
A call is added to element_dependencies._find_all_elements() to
populate reverse dependencies for Element objects.
(This is a reworking of I31d2b6050b6c46fefe37378698e9a330025db430 for
the feature/v2 branch)
Change-Id: Iebb83916fed71565071246baa550849eef40560b
During the creation of a disk image (e.g. for a VM), there is the need
to create, setup, configure and afterwards detach some kind of storage
where the newly installed OS can be copied to or directly installed
in.
This patch implements partitioning handling.
Change-Id: I0ca6a4ae3a2684d473b44e5f332ee4225ee30f8c
Signed-off-by: Andreas Florath <andreas@florath.net>
Cleaning logs was split, some was done in the
img-functions.finalise_base, some was done in the base element.
The version unifies tidy up logs in the lib/img-functions.
Especially when building docker container images the base element
cannot be used. This patch removes about some hundreds KB of
useless logs in cases when the base element is not used.
Change-Id: I165bafb73daf9144c2f3a83930e85e8d8cf5fae3
Signed-off-by: Andreas Florath <andreas@florath.net>
Every run we are doing a full tar.gz of the chroot environment that
never gets used.
It's not suitable for CI since we use fresh images each time there.
The cache in general isn't really isn't a very safe thing to have
around, because there's no invalidation procedure and no real way to
make one -- we've no guarantee that a new chroot build even moments
after a previous one wouldn't bring in or different packages, etc (of
course this is *unlikely*, but the longer you go between builds the
worse the problem becomes. Also, tons of packages get installed after
this not from any cache, so potential speed-up is rather marginal.
Debian turned this off with I58fc485aacacaa17243bf9ce760ed91256d1f182.
However, given the reasons above and it's complete lack of testing, I
don't see this as useful.
If we really want this type of thing, I think we should come up with a
way to use a persistent external yum/dnf cache that yum/dnf keeps in
sync with it's usual invalidation rules.
Change-Id: I66789c35db75c41bc45ea1ad2e26f87456de4e4d
Set the grub timeout to 5 seconds by default, and add notes on how to
update this. This will stop infra having to carry an element that
goes and rewrites the grub configuration.
Change-Id: I556b3f48eff1b67ee8c4b9b64f749af95100fb99
The squashfs format brings a couple of advantages over the other
formats. Image is often an order of magnitude smaller and it can
be used natively, either as an initrd, either with loop mount.
Change-Id: If72940b0c4dafb2504c52dd0429a8eb3f8305751
Debootstrap only supports one apt repository to install packages from.
As a result, we do not consider the updates repo during debootstrap
causing us install a second kernel when we do an apt-get dist-upgrade
during build.
Lets use debootstrap to get us a minimal chroot, then add our repos and
install the correct packages from the start.
We also have to reorder the dpkg root.d scripts which configure apt so
they run before we perform our package installs.
Change-Id: I6a592db6f0a01d3b19d8e0786e63f1315a1ef647
Closes-Bug: #1637516
Add new 'openssh-server' element to ensure that openssh server
is installed and enabled during boot. This is mostly useful for
*-minimal images which do not come with openssh installed and/or
enabled in order to keep a small dependency footprint.
Change-Id: Ide15ee04f5de123dbc8ce4bb56d638d8a167c341
Move dib-run-parts from dib-utils into diskimage-builder directly.
For calling outside the chroot, we provide a standard entry-point
script. However, as noted in the warning comment, the underlying
script is still copied directly into the chroot by the dib-run-parts
element. I believe this to be the KISS approach.
This removes the dependency on dib-utils. We have discussed this
previously and nobody seemed to think retiring dib-utils was going to
be an issue.
This also updates the documentation to not mention dib-utils, or using
disk-image-create via $PATH setup, but rather gives instructions on
installing from pip with a virtualenv.
Change-Id: Ic1e22ba498d2c368da7d72e2e2b70ff34324feb8
Add a new opensuse-minimal element to build small and highly
configurable openSUSE based images using the zypper-minimal element
as the main building mechanism
Change-Id: Iebfc4ad4aff763e511b093f1607b55851ccbddcb
Move managing of SSH host keys into a dedicated element.
Because glean doesn't generate SSH host keys anymore, we need to do it
with a systemd script. This is already handled by CentOS / Fedora so
we don't want to add it there.
This was done to address the upstream bug in debian:
https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=500192
Change-Id: I31ad667672e08350872db21a83445fe0aa7a4a39
Signed-off-by: Paul Belanger <pabelanger@redhat.com>
Move element-info from a wrapper script to a standard entry-point
console_script.
Update the documentation to explain how to run it for development. I
don't think we should support the idea that you can check-out the code
and run ./bin/disk-image-create -- it has dependencies (dib-utils,
etc) and needs to be run from a virtualenv (this is what CI in the
gate does). A follow-up can clean-up some of the path munging stuff
we have for this in disk-image-create.
Change-Id: Ic0c03995667f320a27ac30441279f3e6abb6bca8
These new variables are a list of elements chosen for the build along
with their full paths. For Python elements, IMAGE_ELEMENT_YAML is a
YAML formatted list that can be easily parsed. For bash elements,
"get_image_element_array" will produce an associative-array of the
same (working around lack of array export in Bash).
This list is intended for consumption of elements who need to copy
files from other elements, such as pkg-map and svc-map. As discussed
in I2a29861c67de2d25c595cb35d850e92807d26ac6, this list has already
been pruned and had overrides processed, so it is safe to simply walk
over this list with no further processing.
Since we're presenting the element list in a couple of different ways,
we combine it all into the element-info script. It will output an
eval-able string that declares the appropriate variables.
I've added some inline documentation so they still appear in grep.
The documentation is updated with examples, and moved to a more
appropriate location as a sub-section of the element sytle guide.
To test this out, use the associative-array in generate_hooks, where
we can now find the element's directory without searching.
Change-Id: Ibbd07d082ec827441def2d3f6240df3efdc6eae3
This is a re-factor of element_dependencies to achieve two things --
centralising override policy and storing path names.
Firstly we want to make the override policy for elements completely
explicit. Currently, elements that wish to copy parts of other
elements walk ELEMENTS_PATH themselves and look for elements in
IMAGE_ELEMENT. How they handle duplicate elements can differ, leading
to inconsistent behaviour.
We introduce logic in element-info to find elements in each of the
directories in ELEMENT_PATHS in *reverse* order -- that is to say,
earlier entries in the paths will overwrite later ones.
For example
ELEMENT_PATHS=foo:bar:baz
will mean that "foo/element" will override "baz/element", since "foo"
is first. This should be sane to anyone familiar with $PATH.
Documentation is clarified around this point and a test-case is added.
The second thing is that we want to keep the complete path of the
elements we have chosen. We want the aforementioned elements that
walk the element list to use these canonical paths to pickup files;
this way they don't need to make local decisions about element
overrides, but can simply iterate a list and copy/merge files if they
exist.
A follow-on change (I7092e1845942f249175933d67ab121188f3511fd) will
expose this data in a separate variable that can be parsed by elements
(a further follow-on I0a64b45e9f2cfa28e84b2859d76b065a6c4590f0
modifies the elements to use this information). Thus this does not
change the status-quo -- elements that are walking ELEMENTS_PATH
themselves and can/will continue doing that.
Change-Id: I2a29861c67de2d25c595cb35d850e92807d26ac6
Icf8a075224833fcfbbe2128e8802ff41c39f3c09 looked rather ugly, and it's
easy for us to expand the processing done in the arch list.
Change "arch" to a comma-separated list of architectures that should
match for install.
Add a "not-arch" list which will exclude the package from installation
on those architectures. (An aside -- I considered making it just he
one list with foo,!bar,moo but ! has special meaning in YAML, so it's
easier to have two lists).
$ ARCH=ppc64 package-installs-squash --elements ironic-agent --path=./elements/ /dev/stdout | grep dmidecode
$ ARCH=ppc64 package-installs-squash --elements ironic-agent --path=./elements/ /dev/stdout | grep lshw
"lshw",
$ ARCH=amd64 package-installs-squash --elements ironic-agent --path=./elements/ /dev/stdout | grep lshw
$ ARCH=amd64 package-installs-squash --elements ironic-agent --path=./elements/ /dev/stdout | grep dmidecode
"dmidecode",
Change-Id: Ic69dd02a09e6f3ba9078a2377d8df29871a20db2
