While plugins treat the state as just a dictionary, it's nice for the
driver functions to keep state related functions encapsulated in the
state object singleton. Wrap the internal state dictionary so we can
pass the BlockDeviceState directly without dereferencing.
Change-Id: Ic0193c64d645ed1312f898cbfef87841f460799c
Currently we keep a global list of mount-points defined in the
configuration and automatically setup dependencies between mount nodes
based on their global "mount order" (i.e. higher directories mount
first).
The current method for achieving this is roughly to add the mount
points to a dictionary indexed my mount-point, then at "get_edge()"
call build the sorted list ... unless it has already been built
because this gets called for every node.
It seems much simpler to simply keep a sorted list of the
MountPointNode objects as we add them. We don't need to implement a
sorting algorithm then, we can just use sort() and implement __lt__
for the nodes.
I believe the existing mount-order unit testing is sufficient; I'm
struggling to find a valid configuration where the mount-order is
*not* correctly specified in the configuration graph.
Change-Id: Idc05cdf42d95e230b9906773aa2b4a3b0f075598
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 removes the ccache handling from the base element. For
mostly all systems this was never used at all.
This is working towards the removal of the base element from DIB
Change-Id: Ieb16ef612ebd98470993dcd6f55b3a22d37084ba
Signed-off-by: Andreas Florath <andreas@florath.net>
In python3, the standard out data returned by
subprocess.Popen.communicate() will in most cases be bytes rather than a
string and must therefore be decoded.
Without this fix we hit the following error:
TypeError: a bytes-like object is required, not 'str'
Change-Id: I6d75f867ebfdb925970c3397175214b9050d7632
Closes-Bug: #1694463
Currently openSUSE 42.3 has entered feature freeze mode
so it is a good point in time to verify that 42.3 builds
are working successfully. Also test opensuse-minimal for
platforms that support it (need working zypper package)
Change-Id: I4c613e1e68cb7375c29d544bbf70b5da9bf21414
A couple of things going on, but I think it makes sense to do them
atomically.
The NodeBase.create() argument "results" is the global state
dictionary that will be saved to "state.json", and re-loaded in later
phases and passed to them as the argument "state". So for
consistency, call this argument "state" (this fits with the change out
to start building the state dictionary earlier in the
PluginBase.__init__() calls).
Since the "state" is a pretty important part of how everything works,
move it into a separate object. This is treated as essentially a
singleton. It bundles it nicely together for some added
documentation [1].
We move instantiation of this object out of the generic
BlockDevice.__init__() call and into the actual cmd_* drivers. This
is because there's two distinct instantiation operations -- creating a
new state (during cmd_create) and loading an existing state (other
cmd_*). This is also safer -- since we know the cmd_* arguments are
looking for an existing state.json, we will fail if it somehow goes
missing.
To more fully unit test this, some testing plugins and new
entry-points are added. These add known state values which we check
for. These should be a good basis for further tests.
[1] as noted, we could probably do some fun things in the future like
make this implement a dictionary and have some saftey features like
r/o keys.
Change-Id: I90eb711b3e9b1ce139eb34bdf3cde641fd06828f
As described in pep282 [1], the variable part of a log message
should be passed in via parameter. In this case the parameters
are evaluated only when they need to be.
This patch fixes (unifies) this for DIB.
A check using pylint was added that this kind of passing parameters to
the logging subsystem is enforced in future. As a blueprint a similar
(stripped-down) approach from cinder [2] was used.
[1] https://www.python.org/dev/peps/pep-0282/
[2] https://github.com/openstack/cinder/blob/master/tox.ini
Change-Id: I2d7bcc863e4e9583d82d204438b3c781ac99824e
Signed-off-by: Andreas Florath <andreas@florath.net>
This is an initial creation of pylint with a basic indent checker.
Small issues corrected. Job added to gate with
Ib554a284e92583cc1d6a5c2219b3922852ca4c73
Change-Id: I7e24d8348db3aef79e1395d12692199a1f80161a
Co-Authored-By: Andreas Florath <andreas@florath.net>
This is consistent with how dpkg based images are configured
and minimizes the nodepool images drastically (avoid installing
texlive for example)
Change-Id: I98fb31bc0e06869e9770fae3dbd62f0d86acb879
This was suggested in a review comment in
I8a5d62a076a5a50597f2f1df3a8615afba6dadb2. It works out quite nicely
because the BlockDevice() driver now doesn't need to know anything
about stevedore or plugins, and just works on the node list. It also
simplifies the unit testing by not having to call create_graph through
a BlockDevice object.
Change-Id: I98512f6cf42e256d2ea8225a0b496d303bf357b8
This completes the transitions started in
Ic5a61365ef0132476b11bdbf1dd96885e91c3cb6
The new file plugin.py is the place to start with this change. The
abstract base classes PluginBase and NodeBase are heavily documented.
NodeBase essentially replaces Digraph.Node
The changes in level?/*.py make no functional changes, but are just
refactoring to implement the plugin and node classes consistently.
Additionally we have added asserts during parsing & generation to
ensure plugins are implemented PluginBase, and get_nodes() is always
returning NodeBase objects for the graph.
Change-Id: Ie648e9224749491260dea65d7e8b8151a6824b9c
This switches the code to use networkx for the digraph implementation.
Note that the old implementation specifically isn't removed in this
change -- for review clarity. It will be replaced by a base class
that defines things properly to the API described below.
Plugins return a node object with three functions
get_name() : return the unique name of this node
get_nodes() : return a list of nodes for insertion into the graph.
Usually this is just "self". Some special things like partitioning
add extra nodes at this point, however.
get_edges() : return a tuple of two lists; edges_from and edges_to
As you would expect the first is a list of node names that points to
us, and the second is a list of node names we point to. Usually
this is only populated as ([self.base],[]) -- i.e. our "base" node
points to us. Some plugins, such as mounting, create links both to
and from themselves, however.
Plugins have been updated, some test cases added (error cases
specifically)
Change-Id: Ic5a61365ef0132476b11bdbf1dd96885e91c3cb6
This moves to a more generic config parser that doesn't have plugins
parsing part of the tree.
I understand why it ended up that way; we have "partitions" key which
has special semantics compared to others keys and there was a desire
to keep it isolated from core tree->graph code. But this isn't really
isolated; you have to reverse-engineer several module-crossing
boundaries, extras classes and repetitive recursive functions.
Ultimately, plugins should have access to the node graph, but not
participate in configuration parsing. This way we ensure that plugins
can't invent new methods of configuration parsing.
Note: unit tests produce the same tree -> graph conversion as the old
method. i.e. this is not intended to have a functional change.
Change-Id: I8a5d62a076a5a50597f2f1df3a8615afba6dadb2
Add a range of unit-testing for configuration parsing, graph
generation and mount-point generation. Unfortunately there's some
global variable hacks, and some stubs, but it's a start.
Change-Id: I9e4f950c2c2ea656fc0c1a14594059fb4c62fa35
There's an increasing amount of pydoc based documentation. Output the
module reference and link it into the developers main page.
One fixup to the rst needed
Change-Id: I1d43a1fe1c735eb4559e3d2b40834d1c8115c586
This is a follow-on to 57ef187632.
There's two things going on here; DIB_MANIFEST_IMAGE_DIR is *outside*
the chroot on the build host. We copy the files here for posterity, I
guess. MANIFEST_IMAGE_PATH is *inside* the chroot and are the files
we want to ensure are locked to root.
The prior change modified the permissions on DIB_MANIFEST_IMAGE_DIR.
So the first time you build, it works -- then the second time,
assuming you're using the same output filename, it hits the root-owned
manifest directories and causes a build failure.
I have built with this and checked that the manifest files in the
image are locked to root:
$ virt-ls -a ./test.qcow2 -l /etc/dib-manifests
total 32
drwxr-xr-x 2 0 0 4096 May 24 03:39 .
drwxr-xr-x 53 0 0 4096 May 24 03:39 ..
-rw------- 1 0 0 15236 May 24 03:39 dib-manifest-dpkg-test
-rw------- 1 0 0 35 May 24 03:39 dib_arguments
-rw------- 1 0 0 137 May 24 03:39 dib_environment
Related-Bug: #1671842
Change-Id: I08319d0b5fcc461d40fe0be8427dcf0e37ad21e6
Move Partition() object creation into the actual Partition object,
rather than having the logic within the Partitioning() object
Change-Id: I833ed419a0fca38181a9e2db28e5af87500d8ba4
Split Partition() into it's own file for clarity. This will be
followed-on by less dependence between Partitions and Partition
Change-Id: I860f6a1787c0e4fe99f93919ac37cf7d80bfaae9
Moving the exception didn't cause problems in
I925ed62bdc808f0e07862f6e0905e80b50fbe942, but in later changes where
we split blockdevice.py up a bit more, we can get a bit tangled with
circular imports.
Change-Id: I8297483f64c4e1deecd5ec88ee40e9198bb83589
Because in some cases (e.g. partitioning) the order is needed,
add weights to the digraph to get an (somewhat) stable
topological sort.
Change-Id: I5ef1acc6338ac93c593faa0eafe26cbed42ed887
Signed-off-by: Andreas Florath <andreas@florath.net>
Per [1] this is the "official" CDN mirror, which I think is the most
appropriate for the default. I think this addresses the concerns
httpredir service, which I don't think ever quite got out of beta.
[1] https://wiki.debian.org/DebianGeoMirror
Change-Id: I55f2a00b8bbb0f0a20d3be229e4c2c32a7b69057
Instead, either use the bash built-in of type to ensure it exists. Since
which is an external dep, things can fail oddly in a constrained
environment.
Also add a dib-lint test for this.
Change-Id: I645029f5b5bfe1198c89ce10fd3246be8636e8af
Signed-off-by: Jesse Keating <omgjlk@us.ibm.com>
This new element will allow to regenerate dracut
on the produced images, to enable different modules. It
relies on a yaml blob to specify modules and packages
needed. It defaults to installing lvm and crypt.
Change-Id: I292fb70cde41ee6053b7b81a67931bcdaaa6d664
"log and throw" is arguably an anti-pattern; the error message either
bubles-up into the exception, or the handler figures it out. We have
an example where this logs, and then the handler in blockdevice.py
catches it and logs it again.
Less layers is better; just raise the exception, and use log.exception
to get tracebacks where handled.
Change-Id: I8efd94fbe52a3911253753f447afdb7565849185
