Add the bits of documentation that talk about image creation
at the scope of level 1.
This is a partial refactor of change
I592c0b1329409307197460cfa8fd69798013f1f8
Change-Id: I2619c9ebf3ecfeea67fe9063a169d8324d7ffdf2
Co-Authored-By: Andreas Florath <andreas@florath.net>
Add the tree-like vs complete digraph configuration
for images. This is a partial refactor from
I3600c6a3d663c697b59d91bd3fbb5e408af345e4
Change-Id: Ia7a8321e63d59771fe47d8e262b9aacffd60d8d9
Co-Authored-By: Andreas Florath <andreas@florath.net>
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
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
It seems that pbr's "warnerrors" isn't actually doing anything at the
moment (I680b448471e687919d202e8f2abe57f8ba3b22ee) meaning we're able
to commit docs with RST parser errors. Fix all these up in some
minimal way (I have not audited content, just made it pass build).
Link the specs in so they're referenced from the top level.
Change-Id: Id67b9ea7ba8f49b43969c58ca3fb7fa1243538a4
Turns out that you really have to have the elements dir symlinked
under the source directory for the globbing to match anything. AFAICT
there's no way to add external directories to the sphinx build.
Change-Id: Iaa3576ef250822b0d57bebce1ebbe03e5bafa042
dib_[environment|args] manifest files are currently generated by the
base element and then moved by the manifest element.
This creates too many corner cases -- if you don't include the base
element (we are trying to empty it ATM) you don't get the env/args
saved at all; if you include base but don't include the manifest
element they're saved to /etc, but if you do have the manifest element
they're moved to the manifest dir.
Move generation of these into the manifest element directly and update
the documentation to reflect this. In practice this doesn't change
things, because the "manifests" element gets pulled in via deps for
most builds.
Change-Id: I3f23037058137d166b29f0b70fd1a02c22c07fc8
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>
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>
The components documentation was previously referring to the
ramdisk image for deployment, which was previously deprecated.
Corrected to point to the ironic-agent element.
Change-Id: I770460041eb13523896aaadb7705bdc3db1a54ca
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
We now support tgz (tar.gz) as an output format.
Change-Id: Iadec92f2f96c3f904f28bd49f87ffc7d48ef7bd7
Signed-off-by: Paul Belanger <pabelanger@redhat.com>
mkfs's arguments are
mkfs [options] [-t type] [fs-options] device [size]
So it seems our MKFS_OPTS are really supposed to be fs-options, rather
than options to mkfs itself.
Why didn't we notice? It's quite a trap -- mkfs.ext2 has a "-t"
option, so when we're calling
$ mkfs -i 4096 ... -t ext4 ...
We actually just fall-back to the default from the mkfs wrapper which
is mkfs.ext2 which works! But when you make that, say, xfs, we're not
calling the right wrapper at all.
Also update documentation
Closes-Bug: #1648287
Change-Id: I3ea5807088ab361bd9c235c07fb1553fbaf9178b
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
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
Because environment files are sourced into the current environment,
they shouldn't be setting global settings like tracing else they
affect every preceeding import. This is quite confusing when only
half your imports are traced in the logs, because it was either turned
on, or off, by a preceeding environment import.
There is a corresponding dib-run-parts change in
I29f7df1514aeb988222d1094e8269eddb485c2a0 that will greatly increase
debugability for environment files by deliberately logging what files
are sourced and consistently turning on tracing around their import.
This isn't strictly necessary (since dib-run-parts with the prior
change will just turn tracing off after import anyway) but it's a
decent cleanup for consistency. A bare-minimum dib-lint check is
added. Documentation is updated.
Change-Id: I10f68be0642835a04af7e5a2bc101502f61e5357
We currently have 'user guide' and 'developer documentation'. Lets
rename to 'developer guide' for consistency.
Change-Id: I834ea313bc34275ef33e8c49a1689dff41892015
By default sphinx uses localtoc which means 'show TOC for this page'.
Using a global table of contents on the sidebar is much more user
friendly wih our docs structure.
Change-Id: I215732d3848b4b75d9171bdbaaf2ff2e4dcc01f0
The table of contents for our developer guide does not show due to the
fact that it is past the first sub-header.
Change-Id: I8459a4949e3e4822b0a3cd4f163475d2c60b0f2e
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
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
Running the functional tests is time consuming. This patch adds the
option `-j <job count>` to the tests/run_functests.sh: when given the
test run in parallel up the <job count> jobs.
When using this, be sure to have enough resources (CPUs, RAM and HD
space) on the host.
In addition there was the need to change two things:
o Global /tmp/dib-test-should-fail was move to temporary build
directory of each execution.
o Because the logs might now interleave, each log line has now a
prefix of the name of the testcase.
[In my environment running functests sequential takes 15+ minutes,
running them parallel takes less than 6 minutes.]
Change-Id: Id9ea5131f0026c292ca6453ba2c80fe12c47f808
Signed-off-by: Andreas Florath <andreas@florath.net>
