systemd-resolved has a new behaviour in bionic, in that if there is no
/etc/resolv.conf file when it installs, it assumes it is a fresh
system and makes /etc/resolf.conf a symlink into its compatability
files.
dib ends up saving & restoring whatever /etc/resolv.conf we have after
the inital chroot creation, which may not be what we want -- in the
above case it restores the system-resolved symlink. For
openstack-infra, we use unbound and want simply "127.0.0.1" in a
/etc/resolv.conf file [1].
Formalise the ability to save specific contents into the final image.
Add documentation, and a note in the code that it's an external
interface.
I would have preferred to namespace the .ORIG file with DIB_ or
similar, but this unofficial interface has already escaped into the
wild. Leave it as is for simplicity.
[1] Note that systemd-resolved will obey /etc/resolv.conf as you would
expect, if file exists.
Change-Id: Ie0e97d8072e2b21a54b053fa6fb07b62960c686d
This moves the block-device default out of the "vm" element and into a
selection of other elements. There's "mbr" which retains the status
quo. There's an EFI version that has the boot/grub partitions as
required. In between there's the GPT only version, which is useful
for architectures like power without EFI, but still want possible
larger disks using GPT.
Change-Id: I4a566a97d073fc0dda0ab2494ac988fe015800a9
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
This updates diskimage-builder to support current Fedora releases (26
and 27) and removes support for Fedora 25 which is EOL as of December
12, 2017.
Change-Id: I227a607c6c468cc8b7bb154a189e9c8ce2021192
s390x architecture uses zipl as bootloader. When used in combination
with the vm element it replaces the existing bootloader element.
It's mandatory for s390x vm images.
Use cases
---------
* Allow users to create s390x images that run on nova with s390x
libvirt/kvm backend
* Building nodepool images for s390x third party CI
Supported Distros
-----------------
The following listing shows all Distros that officially support
s390x and how those Distros are supported in DIB with this patch.
* SLES - not supported (SLES is not supported in DIB)
* RHEL - not suppoprted (RHEL is not supported as KVM guest on s390x,
therefore there's no rhel7 qcow image for s390x available
like it is for other archictectures)
* Ubuntu - supported
Ubuntu images can for example be built using the following commands:
$ disk-image-create ubuntu-minimal zipl vm
$ disk-image-create ubuntu-minimal zipl
$ disk-image-create ubuntu zipl vm
Testing
-------
Cross architecture building of s390x images is not supported so far.
The plan is to set up a ThirdParty CI that builds the image for s390x and
provides the logs.
Co-Authored-By: Andreas Scheuring <andreas.scheuring@de.ibm.com>
Co-Authored-By: Holger Smolinsky <holger@smolinski.name>
Co-Authored-By: Zhiguo Deng <bjzgdeng@linux.vnet.ibm.com>
Co-Authored-By: Arne Recknagel <arne.recknagel@hotmail.com>
Closes-Bug: #1730641
Change-Id: I576e7edda68da12e97c60af38f457915efe7b934
When using volumes, booting from them will need that the ramdisk
image used has support for that. In case the lvm module is not
included, mention the need of adding dracut-regenerate in the
elements that are needed.
Change-Id: I6e1f618dcfc5ef3be01c83904ffe6dd33db72bb7
Partially-Fixes-Bug: #1715686
This provides a basic LVM support to dib-block-device.
Co-Authored-By: Ian Wienand <iwienand@redhat.com>
Change-Id: Ibd624d9f95ee68b20a15891f639ddd5b3188cdf9
Testing on a ubuntu cloud image, the build is not possible
because it is missing the kpartx dependency. Adding that
as a requirement, when producing images with partitions.
Change-Id: I0c8f39b5233dd450d8130735ed801bbed6bca0e9
The MBR Partition Table Entry (PTE) allows one to specify many
possible partition types and one of the benefits of this is being able
to specify the CHS variant or the LBA variant.
By default, LBA only creates partitions of type 0x83 (of course,
that's only because the documentation doesn't tell you how to make it
do anything else).
I will take up Ian's suggestion in patch set 2 for a more rigorous
test in an independent patch set.
Change-Id: If3068535980eac2e58d4025444c65147a8c7fedc
Closes-Bug:#1703352
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
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
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
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 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
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>
This reverts commit 5184d02a7c.
The decision was made to go with fstrim because it is faster and more
universal that zerofree. The related-id has the patchset that implements
fstrim.
Related-Id: I269b4416be450369616f9b8e030f84c30e329804
Change-Id: If40cf2fc0ecd8686768cbfeac9ecee90907674e7
If the image has an ext filesystem and the zerofree utility is present
on the build system then run zerofree. This should make images as
compressable as possible which is a nice feature when building
compressed qcow2 images.
Change-Id: Ia6062c291f7a3f58b85a4f408ecb3d0574c65d53
speedup section explains the user how to sppedup image build by using
tmpfs. The correct user guide to have this section, is the user guide
about image building rather than the installation user guide.
Change-Id: I96b90bd79df53db4f926a928ae3c86b888315230
End user docs would benefit from a section about the byte-to-inode
ratio, and why it's set the way it is. This update explains why
and how to manipulate the ratio depending on the intended use.
Change-Id: Iffb5ef6f4c7c74f4aa6e25912d4991d7a611c8fe
Closes-bug: 1512841
Install-types are a user facing feature, not just for developers. Lets
move the docs on them in to the user guide.
Change-Id: I6ee8f657c270cf90da9c0729494740bb23aa47c5
Our docs are very developer focused. Lets create a separate user guide
to help new users get started.
Change-Id: I8a03920e6d3306dd0405177875ea55ccb4b40fea
