Commit Graph

12 Commits

Author SHA1 Message Date
Andreas Florath
e4e23897a1 Refactor: block-device filesystem creation, mount and fstab
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
2017-05-12 13:52:02 +02:00
Ian Wienand
47140293b6 Move blockdevicesetupexception.py into blockdevice.py
Less is more when it comes to code :)

Change-Id: I925ed62bdc808f0e07862f6e0905e80b50fbe942
2017-05-11 15:22:41 +10:00
Ian Wienand
2a185ec6b6 block_device: reorder imports
Reorder imports to hacking standard (stdlib, third-party, project) [1]

[1] https://docs.openstack.org/developer/hacking/#import-order-template

Change-Id: I4aa73321e1e796ef6b8b079e42f90bf5c75388fe
2017-05-11 10:38:55 +10:00
Ian Wienand
0d8c4270c0 exec_sudo: check cmd for str, log output and raise exception
To avoid any confusion, commands passed to exec_sudo() should be a
list of "str"s.  Log a message if we see unicode issues.

This also adds a debug trace of all output.  stderr is captured.

This is modified to raise CalledProcessError on failure, like
check_call().  Calls that are ok to fail will need to explicitly catch
and ignore this.

The two calls that we expect to fail are wrapped

We wish to try rolling back if one of these command raises an
exception.  Modify the create handler to initiate rollback on all
exceptions.

Change-Id: Iee4fa41ffaf243e4728bf3a5eeec5c8fa8d2dadc
2017-05-11 09:45:25 +10:00
Yolanda Robla
9b75eda51a Introduce exec_sudo command
Add a new method in the block device library called
exec_sudo, so it can be reused.

This is a partial refactor of change
I592c0b1329409307197460cfa8fd69798013f1f8

Change-Id: Id621f6d029e1275a35c4fd3f19b57c8518076134
Co-Authored-By: Andreas Florath <andreas@florath.net>
2017-05-05 16:11:41 +02:00
Yolanda Robla
08c36e4bf8 Add refactor of tree-like vs graph
Introducing the refactors of the block device to allow a tree-like
configuration, and start using it for the partitions level.
Based on patch I3600c6a3d663c697b59d91bd3fbb5e408af345e4

Change-Id: I58bb3c256a1dfd100d29266571c333c2d43334f7
Co-Authored-By: Andreas Florath <andreas@florath.net>
2017-05-03 05:27:43 +00:00
Yolanda Robla
943f1ccf04 Refactor block_device: isolate the getval call
Add a new getval call that allows to retrieve values
from the block device. Also isolating the block device
information into a 'blockdev' dictionary entry, to better
return it with the getval command.

This is a refactor from the original code at
I3600c6a3d663c697b59d91bd3fbb5e408af345e4.

Change-Id: I93d33669a3a0ae644eab9f9b955bb5a9470cadeb
Co-Authored-By: Andreas Florath <andreas@florath.net>
2017-05-01 12:22:52 +02:00
Andreas Florath
57c9e0bb41 Use stevedore for plugin config of block device
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>
2017-03-24 21:42:47 +00:00
Ian Wienand
a8f2eaded8 Capture output in _exec_sudo
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
2017-03-23 09:31:37 +11:00
Yolanda Robla
96504a4de0 Use OrderedDict for partitions instead of simple dictionary
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
2017-03-07 15:55:20 +01:00
Andreas Florath
866a06f92d Refactor: block-device partitioning cleanup
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>
2017-03-07 18:43:09 +11:00
Andreas Florath
ec7f56c1b2 Refactor: block-device handling (partitioning)
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>
2017-01-24 19:59:10 +00:00