This patch introduces stevedore plugin mechanism for use
with the block device layer. This makes it possible that
other projects pass in their own block device plugins.
Change-Id: Id3ea56aaf75f5a20a4e1b6ac2a68adb12c56b574
Signed-off-by: Andreas Florath <andreas@florath.net>
diskimage-builder usually provides defaults that work out of the box.
One default that does not work outside of x86 land is Ubuntu distro
mirror url. Considering there are only two valid default options, we can
automatically choose a better default.
This patch changes behavior only for architectures known to be using
http://ports.ubuntu.com/ubuntu-ports. All others still would use
http://archive.ubuntu.com/ubuntu as default. It provides some guarantee
that we do not introduce a regression.
Change-Id: If95a64bac0c88f30736da4bae7f1fdce126c0bf6
We somewhat discussed skipping qcow2 generation previously in
I9372e195913798a851c96e62eee89029e067baa1. As recent issues with PPC
testing have shown, we are not actually testing the "vm" element and
hence the bootloader path in the functional tests.
I don't think we need to test this on every element; it overlaps
somewhat with the testing done by the nodepool jobs which build full
images and boot them. I also didn't want to introduce a separate run
for this. Thus it seems valuable to at least have one element
enhanced to do this installation and conversion in our default tests
for basic sanity.
This disables qcow generation by default, as per the other change, but
allows an element to drop a file that will override the output
formats. The Xenial element is modified to produce a qcow2 using
this, and also introduces a dependency on the "vm" element so it tries
to install the bootloader.
We now exit if the .qcow2 fails to build as well.
Change-Id: I1a6acefe52f8c696c39b2d592fdc7ae32a87e6fe
Add a default PPC block-device layout. I've extracted this into
separate yaml files for ease of editing and to facilitate things like
longer comments.
This is not sufficient to get PPC images working, but it is required.
Change-Id: I09e5d1ed92260bdb632333f5203dd7e70d512dc8
The stdout of the script is captured, so anything coming out from
these commands needs to be captured. Move to check_process and show
the output as part of an error log in failure case.
Change-Id: I1150375cdc479d4f19b8ddeb49a824ab16fdf831
Sphix 1.5 (I9e7261c4124b71eeb6bddd9e21747b61bbdc16fa) includes
"warning-is-error" which supersedes pbr's warnerrors. Enable this and
fix up the resulting failures
- trailing lines for lists in element_deps directive
- missing README's that are linked
- syntax error and highlighting in building instructions
Change-Id: I6549551b4a9bf47076c9811a7a38a666cbea2a50
99-squash-package-install in the package-installs element does not
know which python environments the requirements were installed into.
This can cause it to select the wrong python to run the
package-installs-squash script.
Co-Authored-By: Adam Harwell <flux.adam@gmail.com>
Change-Id: I5fab0e192c3a2dad8f60e821c184479e24e33bcd
execfile() has gone in python3, and if you google various
stackoverflow results, python-dev mailing list threads and other
projects it seems runpy is considered one of the better solutions.
This should be py2.7 safe too.
Change-Id: I18077ba9d603752492cc81f260e12710981f4dff
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>
Depending on the types of deployment (security, nfv...) some extra
kernel flags are needed on the images. This change exposes the
DIB_BOOTLOADER_DEFAULT_CMDLINE parameter, defaulting to the
existing 'nofb nomodeset vga=normal', that will allow to modify
these boot params.
Change-Id: I67d191fa5ca44a57f776cb9739a02dd71212969c
Closes-Bug: #1668890
The order of the partitions is important, it needs to be preserved.
If using a simple dict, this is not happening. As a consequence,
checks like 'primary partition being first' are failing because the
dictionary sorts the partitions randomly.
Switched to OrderedDict solved the problem, as it preserves the
ordering it gets from the yaml blob.
Change-Id: Icfa9bd95ffd0203d7c3f6af95de3a6f848c2a954
Now that the main partitioning refactor patch is merged, there is
a small relict of handling partitions still in the disk-image-create
main.
This patch moves the functionality from disk-image-create to the
block-device/partitioning module: it is mostly a rewrite of the
original bash code in python.
Change-Id: Ia73baeca74180a7bc9ea487da03ff56d6a3070ce
Signed-off-by: Andreas Florath <andreas@florath.net>
Looks that the special handling for Ubuntu is not needed any longer
(its a pity that there are no detailed comments...).
The grub2 element is a second implementation of the bootstrap element
- but because there are some features that come only here, e.g. efi
boot, it should be working as long as this is not implemented in the
bootloader element.
Change-Id: I74269116ea30b84f3259805720d5cd1616f960c5
Signed-off-by: Andreas Florath <andreas@florath.net>
Closes-Bug: #1627402
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
In error scenarios there might be no loadable state available.
This patch adds some robustness handling this scenarios
by checking the result and possible bailing out.
Change-Id: I02e2731b14bec22c22db08d60d8d15db1911a84e
Signed-off-by: Andreas Florath <andreas@florath.net>
With the old configuration structure it was only possible
to use one image and one partition layout. The new
block-device configuration uses a list at top level;
therefore it is possible to use multiple instances
of each element type.
Change-Id: I9db4327486b676887d6ce09609994116dbebfc89
Signed-off-by: Andreas Florath <andreas@florath.net>
When merging feature/v2 we have re-enabled the centos-minimal test
which has a blank line in the element-deps. The modified get_elements
functions added in If97bcd21e45de1b5ed91023fdc441a4617051a6b were not
handling this.
Fixing this, we can extract this into some common code for
element-deps and element-provides.
Also, I noticed while debugging that the element list is an iterator
from reverse(), so printing it doesn't help. Fix up the debug output.
Change-Id: I8e9b079f586e8a36dba3797a0fc03ca1b2041a04
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>
expand_dependencies() was a public interface so we should try and
preserve backwards compat. However, since the interface is really
broken, add a new exported function "get_elements" that instack can
switch to. This returns the canonical list of elements without
duplicates, and gives the path to each element too.
This highlighted that the unit tests were really a bit wrong. They're
testing inner functions when we have an "API" in the get_elements()
function. Convert all unit-tests to use this function instead. Since
this is a library call, convert the sys.exit() calls to raised
exceptions.
Refactor the variable output into a separate function so we can do a
sanity check on it.
The added flake8 ignores are for the "over-indented for ... indent"
which happens a lot with these new longer lines. Most other projects
ignore them.
This is an alternative proposal to
I15609389c18adf3017220fc94552514d195b323a
Change-Id: If97bcd21e45de1b5ed91023fdc441a4617051a6b
We do not have the concept of "not installed" in v2, so remove the
obsolete code looking for a now non-existent variable.
Also, log the version at startup. This can help when
debugging from logs
Change-Id: I964c4cf207c10666afc5bc7ab9f2bfb9b1897c1e
Because we're still fundamentally a python program calling a
shell-script, there's some oddities like not having the virtualenv
bin/ in the $PATH if we call disk-image-create directly.
We can detect this, however, and activate the virtualenv before we
fork the disk-image-create shell script so everything "just works".
See also nodepool change I0537cbf167bb18edf26f84ac269cbd9c8a1ea6a2
Change-Id: Ibfea6cf6a6fd0c7f1e468d501c61ae0b58992042
Remove the x bit from lib/disk-image-create; because it's called
directly by the entry-point, it doesn't need to be exectuable.
This should also be clearer that you're not supposed to run it
by hand.
Remove some boilerplate from old file
Change-Id: Ibb6cdae613e6c9cf21dd6aecc8e1f739bc3a2643
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
It has always been a weird thing that dib is a python package, but
is totally driven by the disk-image-create script. It creates this
strange division that is hard to explain.
This moves disk-image-create to a regular python entry-point
Currently, this simply exec()s the original disk-image-create script.
However, we now have a (private) interface between disk-image-create
written in python and the driver shell script. Here's some things we
could do, for example:
* Argument parsing is generally nicer in Python, and then end result
is mostly just setting environment variables to flag different things
in the shell script. I could see us moving the argument-parsing into
diskimage_builder.disk_image_create:main() and just setting things in
os.environ before the exec()).
* I7092e1845942f249175933d67ab121188f3511fd sets IMAGE_ELEMENT_YAML in
disk-image-create by calling-back to element-info. We can just call
element_dependencies.find_all_elements() in here an export is to
os.environ before disk-image-create starts.
* remove need for ramdisk-image-create symlink by just exporting
IS_RAMDISK based on sys.argv[1] value
* you could even unit test some of this :)
Change-Id: I69ca3d26fede0506a6353c077c69f735c8d84d28
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
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
Block device handling can be somewhat complex - especially
when taking things like md, lvm or encryption into account.
This patch factors out the creation and deletion of the local
loop image device handling into a python library.
The main propose of this patch is to implement the needed
infrastructure. Based on this, more advanced functions can be added.
Example: (advanced) partitioning, LVM, handling different boot
scenarios (BIOS, UEFI, ...), possibility of handling multiple images
(local loop image, iSCSI, physical hard disk, ...), handling of
different filesystems for different partitions / LVs.
Change-Id: Ib626b36a00f8a5dc3dbde8df3e2619a2438eaaf1
Signed-off-by: Andreas Florath <andreas@florath.net>
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
