File combustion-1.3+git11.obscpio of Package combustion

Overview Repositories Revisions Requests Users Attributes Meta

File combustion-1.3+git11.obscpio of Package combustion (Revision 092a6ce9fd3db1933cdc430fec54504c)

Currently displaying revision 092a6ce9fd3db1933cdc430fec54504c , Show latest

07070100000000000041ED0000000000000000000000026690E82200000000000000000000000000000000000000000000002100000000combustion-1.3+git11/30firstboot07070100000001000081A40000000000000000000000016690E82200000619000000000000000000000000000000000000003200000000combustion-1.3+git11/30firstboot/firstboot-detect#!/bin/sh
set -eu
what="$(systemctl show -P What sysroot.mount)"
opts="$(systemctl show -P Options sysroot.mount)"

# Catch cases where sysroot isn't a device,
# especially kiwi's install:CDLABEL=INSTALL syntax.
if ! echo "$what" | grep -q ^/; then
	echo "Unable to detect firstboot on $what" >&2
	exit 0
fi

mount -o "$opts" "$what" /sysroot

# Handle x-initrd.mount without initrd-parse-etc.service
awk '$1 !~ /^#/ && $4 ~ /(\<|,)x-initrd\.mount(\>|,)/ { if(system("mount --target-prefix /sysroot --fstab /sysroot/etc/fstab " $2) != 0) exit 1; }' /sysroot/etc/fstab

if ! [ -e /sysroot/etc/machine-id ] \
	|| grep -qw 'ignition\.firstboot' /proc/cmdline || grep -qw 'combustion\.firstboot' /proc/cmdline; then
	echo "Firstboot detected"
	if [ "$(uname -m)" = "s390x" ]; then
		# On s390x, attached DASDs need to be enabled first to appear as block devices.
		# On the first boot this is necessary to probe for configuration sources.
		echo "Trying to enable all available DASDs"
		chzdev dasd --offline --existing --enable --active || echo "Couldn't enable all DASD devices, trying to continue anyway." >&2
	fi
	# Make initrd.target require firstboot.target
	systemctl enable --quiet firstboot.target
	# As initrd.target/start was already scheduled, ^ does not have any immediate effect.
	# Triggering a start of initrd.target again schedules the missing jobs.
	# With --job-mode=fail this fails if any of those missing jobs is destructive, likely
	# caused by dep cycles in firstboot units.
	systemctl start --now --no-block --job-mode=fail initrd.target
fi
07070100000002000081A40000000000000000000000016690E822000004B8000000000000000000000000000000000000003A00000000combustion-1.3+git11/30firstboot/firstboot-detect.service[Unit]
Description=Detect Firstboot
DefaultDependencies=no

# In this mode, the zipl initrd uses grub2-emu to kexec the real kernel
# and initrd. Don't run there, only in the real initrd (bsc#1218065).
ConditionKernelCommandLine=!initgrub

# This needs /sysroot to be mountable
# Should also include systemd-fsck-root, but that would create a cycle
# with dracut-initqueue below.
Requires=initrd-root-device.target
After=initrd-root-device.target

# But before it's actually mounted
Before=sysroot.mount

# Combustion/ignition may configure networking, which runs during
# the initqueue (wicked) or has its own service (NM)
Before=dracut-initqueue.service nm-initrd.service

# Make sure this is stopped before switch root or emergency:
# https://github.com/systemd/systemd/issues/3436
Conflicts=initrd-switch-root.target umount.target
Conflicts=dracut-emergency.service emergency.service emergency.target

[Service]
Type=oneshot
# This has to mount /sysroot as /sysroot, but starting sysroot.mount would
# screw up ordering
PrivateMounts=true
# Work around https://github.com/systemd/systemd/issues/28723
TemporaryFileSystem=/run/mount
ExecStart=/usr/bin/firstboot-detect

[Install]
RequiredBy=initrd.target
07070100000003000081A40000000000000000000000016690E8220000012F000000000000000000000000000000000000003200000000combustion-1.3+git11/30firstboot/firstboot.target[Unit]
Description=Initrd Firstboot

[Install]
RequiredBy=initrd.target
07070100000004000081A40000000000000000000000016690E82200000369000000000000000000000000000000000000003100000000combustion-1.3+git11/30firstboot/module-setup.shcheck() {
	# Pulled in by other modules only
	return 255
}

depends() {
	echo bash systemd
}

install() {
	inst_simple "${moddir}/firstboot-detect.service" "${systemdsystemunitdir}/firstboot-detect.service"
	inst_simple "${moddir}/firstboot.target" "${systemdsystemunitdir}/firstboot.target"
	inst_simple "${moddir}/firstboot-detect" "/usr/bin/firstboot-detect"
	$SYSTEMCTL -q --root "$initdir" enable firstboot-detect.service
	inst_multiple awk grep mount

if [ "${DRACUT_ARCH:-$(uname -m)}" = "s390x" ]; then
		# Special behaviour on s390x: On the first boot, enable all DASDs
		inst_multiple chzdev
	fi

# Work around https://github.com/systemd/systemd/pull/28718
	mkdir -p "${initdir}/${systemdsystemunitdir}/initrd-parse-etc.service.d/"
	echo -e "[Unit]\nConflicts=emergency.target" > "${initdir}/${systemdsystemunitdir}/initrd-parse-etc.service.d/emergency.conf"
}
07070100000005000081A40000000000000000000000016690E822000046AC000000000000000000000000000000000000001D00000000combustion-1.3+git11/LICENSE                    GNU GENERAL PUBLIC LICENSE
                       Version 2, June 1991

Copyright (C) 1989, 1991 Free Software Foundation, Inc.,
 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
 Everyone is permitted to copy and distribute verbatim copies
 of this license document, but changing it is not allowed.

Preamble

The licenses for most software are designed to take away your
freedom to share and change it.  By contrast, the GNU General Public
License is intended to guarantee your freedom to share and change free
software--to make sure the software is free for all its users.  This
General Public License applies to most of the Free Software
Foundation's software and to any other program whose authors commit to
using it.  (Some other Free Software Foundation software is covered by
the GNU Lesser General Public License instead.)  You can apply it to
your programs, too.

When we speak of free software, we are referring to freedom, not
price.  Our General Public Licenses are designed to make sure that you
have the freedom to distribute copies of free software (and charge for
this service if you wish), that you receive source code or can get it
if you want it, that you can change the software or use pieces of it
in new free programs; and that you know you can do these things.

To protect your rights, we need to make restrictions that forbid
anyone to deny you these rights or to ask you to surrender the rights.
These restrictions translate to certain responsibilities for you if you
distribute copies of the software, or if you modify it.

For example, if you distribute copies of such a program, whether
gratis or for a fee, you must give the recipients all the rights that
you have.  You must make sure that they, too, receive or can get the
source code.  And you must show them these terms so they know their
rights.

We protect your rights with two steps: (1) copyright the software, and
(2) offer you this license which gives you legal permission to copy,
distribute and/or modify the software.

Also, for each author's protection and ours, we want to make certain
that everyone understands that there is no warranty for this free
software.  If the software is modified by someone else and passed on, we
want its recipients to know that what they have is not the original, so
that any problems introduced by others will not reflect on the original
authors' reputations.

Finally, any free program is threatened constantly by software
patents.  We wish to avoid the danger that redistributors of a free
program will individually obtain patent licenses, in effect making the
program proprietary.  To prevent this, we have made it clear that any
patent must be licensed for everyone's free use or not licensed at all.

The precise terms and conditions for copying, distribution and
modification follow.

GNU GENERAL PUBLIC LICENSE
   TERMS AND CONDITIONS FOR COPYING, DISTRIBUTION AND MODIFICATION

0. This License applies to any program or other work which contains
a notice placed by the copyright holder saying it may be distributed
under the terms of this General Public License.  The "Program", below,
refers to any such program or work, and a "work based on the Program"
means either the Program or any derivative work under copyright law:
that is to say, a work containing the Program or a portion of it,
either verbatim or with modifications and/or translated into another
language.  (Hereinafter, translation is included without limitation in
the term "modification".)  Each licensee is addressed as "you".

Activities other than copying, distribution and modification are not
covered by this License; they are outside its scope.  The act of
running the Program is not restricted, and the output from the Program
is covered only if its contents constitute a work based on the
Program (independent of having been made by running the Program).
Whether that is true depends on what the Program does.

1. You may copy and distribute verbatim copies of the Program's
source code as you receive it, in any medium, provided that you
conspicuously and appropriately publish on each copy an appropriate
copyright notice and disclaimer of warranty; keep intact all the
notices that refer to this License and to the absence of any warranty;
and give any other recipients of the Program a copy of this License
along with the Program.

You may charge a fee for the physical act of transferring a copy, and
you may at your option offer warranty protection in exchange for a fee.

2. You may modify your copy or copies of the Program or any portion
of it, thus forming a work based on the Program, and copy and
distribute such modifications or work under the terms of Section 1
above, provided that you also meet all of these conditions:

a) You must cause the modified files to carry prominent notices
    stating that you changed the files and the date of any change.

b) You must cause any work that you distribute or publish, that in
    whole or in part contains or is derived from the Program or any
    part thereof, to be licensed as a whole at no charge to all third
    parties under the terms of this License.

c) If the modified program normally reads commands interactively
    when run, you must cause it, when started running for such
    interactive use in the most ordinary way, to print or display an
    announcement including an appropriate copyright notice and a
    notice that there is no warranty (or else, saying that you provide
    a warranty) and that users may redistribute the program under
    these conditions, and telling the user how to view a copy of this
    License.  (Exception: if the Program itself is interactive but
    does not normally print such an announcement, your work based on
    the Program is not required to print an announcement.)

These requirements apply to the modified work as a whole.  If
identifiable sections of that work are not derived from the Program,
and can be reasonably considered independent and separate works in
themselves, then this License, and its terms, do not apply to those
sections when you distribute them as separate works.  But when you
distribute the same sections as part of a whole which is a work based
on the Program, the distribution of the whole must be on the terms of
this License, whose permissions for other licensees extend to the
entire whole, and thus to each and every part regardless of who wrote it.

Thus, it is not the intent of this section to claim rights or contest
your rights to work written entirely by you; rather, the intent is to
exercise the right to control the distribution of derivative or
collective works based on the Program.

In addition, mere aggregation of another work not based on the Program
with the Program (or with a work based on the Program) on a volume of
a storage or distribution medium does not bring the other work under
the scope of this License.

3. You may copy and distribute the Program (or a work based on it,
under Section 2) in object code or executable form under the terms of
Sections 1 and 2 above provided that you also do one of the following:

a) Accompany it with the complete corresponding machine-readable
    source code, which must be distributed under the terms of Sections
    1 and 2 above on a medium customarily used for software interchange; or,

b) Accompany it with a written offer, valid for at least three
    years, to give any third party, for a charge no more than your
    cost of physically performing source distribution, a complete
    machine-readable copy of the corresponding source code, to be
    distributed under the terms of Sections 1 and 2 above on a medium
    customarily used for software interchange; or,

c) Accompany it with the information you received as to the offer
    to distribute corresponding source code.  (This alternative is
    allowed only for noncommercial distribution and only if you
    received the program in object code or executable form with such
    an offer, in accord with Subsection b above.)

The source code for a work means the preferred form of the work for
making modifications to it.  For an executable work, complete source
code means all the source code for all modules it contains, plus any
associated interface definition files, plus the scripts used to
control compilation and installation of the executable.  However, as a
special exception, the source code distributed need not include
anything that is normally distributed (in either source or binary
form) with the major components (compiler, kernel, and so on) of the
operating system on which the executable runs, unless that component
itself accompanies the executable.

If distribution of executable or object code is made by offering
access to copy from a designated place, then offering equivalent
access to copy the source code from the same place counts as
distribution of the source code, even though third parties are not
compelled to copy the source along with the object code.

4. You may not copy, modify, sublicense, or distribute the Program
except as expressly provided under this License.  Any attempt
otherwise to copy, modify, sublicense or distribute the Program is
void, and will automatically terminate your rights under this License.
However, parties who have received copies, or rights, from you under
this License will not have their licenses terminated so long as such
parties remain in full compliance.

5. You are not required to accept this License, since you have not
signed it.  However, nothing else grants you permission to modify or
distribute the Program or its derivative works.  These actions are
prohibited by law if you do not accept this License.  Therefore, by
modifying or distributing the Program (or any work based on the
Program), you indicate your acceptance of this License to do so, and
all its terms and conditions for copying, distributing or modifying
the Program or works based on it.

6. Each time you redistribute the Program (or any work based on the
Program), the recipient automatically receives a license from the
original licensor to copy, distribute or modify the Program subject to
these terms and conditions.  You may not impose any further
restrictions on the recipients' exercise of the rights granted herein.
You are not responsible for enforcing compliance by third parties to
this License.

7. If, as a consequence of a court judgment or allegation of patent
infringement or for any other reason (not limited to patent issues),
conditions are imposed on you (whether by court order, agreement or
otherwise) that contradict the conditions of this License, they do not
excuse you from the conditions of this License.  If you cannot
distribute so as to satisfy simultaneously your obligations under this
License and any other pertinent obligations, then as a consequence you
may not distribute the Program at all.  For example, if a patent
license would not permit royalty-free redistribution of the Program by
all those who receive copies directly or indirectly through you, then
the only way you could satisfy both it and this License would be to
refrain entirely from distribution of the Program.

If any portion of this section is held invalid or unenforceable under
any particular circumstance, the balance of the section is intended to
apply and the section as a whole is intended to apply in other
circumstances.

It is not the purpose of this section to induce you to infringe any
patents or other property right claims or to contest validity of any
such claims; this section has the sole purpose of protecting the
integrity of the free software distribution system, which is
implemented by public license practices.  Many people have made
generous contributions to the wide range of software distributed
through that system in reliance on consistent application of that
system; it is up to the author/donor to decide if he or she is willing
to distribute software through any other system and a licensee cannot
impose that choice.

This section is intended to make thoroughly clear what is believed to
be a consequence of the rest of this License.

8. If the distribution and/or use of the Program is restricted in
certain countries either by patents or by copyrighted interfaces, the
original copyright holder who places the Program under this License
may add an explicit geographical distribution limitation excluding
those countries, so that distribution is permitted only in or among
countries not thus excluded.  In such case, this License incorporates
the limitation as if written in the body of this License.

9. The Free Software Foundation may publish revised and/or new versions
of the General Public License from time to time.  Such new versions will
be similar in spirit to the present version, but may differ in detail to
address new problems or concerns.

Each version is given a distinguishing version number.  If the Program
specifies a version number of this License which applies to it and "any
later version", you have the option of following the terms and conditions
either of that version or of any later version published by the Free
Software Foundation.  If the Program does not specify a version number of
this License, you may choose any version ever published by the Free Software
Foundation.

10. If you wish to incorporate parts of the Program into other free
programs whose distribution conditions are different, write to the author
to ask for permission.  For software which is copyrighted by the Free
Software Foundation, write to the Free Software Foundation; we sometimes
make exceptions for this.  Our decision will be guided by the two goals
of preserving the free status of all derivatives of our free software and
of promoting the sharing and reuse of software generally.

NO WARRANTY

11. BECAUSE THE PROGRAM IS LICENSED FREE OF CHARGE, THERE IS NO WARRANTY
FOR THE PROGRAM, TO THE EXTENT PERMITTED BY APPLICABLE LAW.  EXCEPT WHEN
OTHERWISE STATED IN WRITING THE COPYRIGHT HOLDERS AND/OR OTHER PARTIES
PROVIDE THE PROGRAM "AS IS" WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESSED
OR IMPLIED, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.  THE ENTIRE RISK AS
TO THE QUALITY AND PERFORMANCE OF THE PROGRAM IS WITH YOU.  SHOULD THE
PROGRAM PROVE DEFECTIVE, YOU ASSUME THE COST OF ALL NECESSARY SERVICING,
REPAIR OR CORRECTION.

12. IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING
WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MAY MODIFY AND/OR
REDISTRIBUTE THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES,
INCLUDING ANY GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING
OUT OF THE USE OR INABILITY TO USE THE PROGRAM (INCLUDING BUT NOT LIMITED
TO LOSS OF DATA OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY
YOU OR THIRD PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER
PROGRAMS), EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE
POSSIBILITY OF SUCH DAMAGES.

END OF TERMS AND CONDITIONS

How to Apply These Terms to Your New Programs

If you develop a new program, and you want it to be of the greatest
possible use to the public, the best way to achieve this is to make it
free software which everyone can redistribute and change under these terms.

To do so, attach the following notices to the program.  It is safest
to attach them to the start of each source file to most effectively
convey the exclusion of warranty; and each file should have at least
the "copyright" line and a pointer to where the full notice is found.

<one line to give the program's name and a brief idea of what it does.>
    Copyright (C) <year>  <name of author>

This program is free software; you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
    the Free Software Foundation; either version 2 of the License, or
    (at your option) any later version.

This program is distributed in the hope that it will be useful,
    but WITHOUT ANY WARRANTY; without even the implied warranty of
    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
    GNU General Public License for more details.

You should have received a copy of the GNU General Public License along
    with this program; if not, write to the Free Software Foundation, Inc.,
    51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.

Also add information on how to contact you by electronic and paper mail.

If the program is interactive, make it output a short notice like this
when it starts in an interactive mode:

Gnomovision version 69, Copyright (C) year name of author
    Gnomovision comes with ABSOLUTELY NO WARRANTY; for details type `show w'.
    This is free software, and you are welcome to redistribute it
    under certain conditions; type `show c' for details.

The hypothetical commands `show w' and `show c' should show the appropriate
parts of the General Public License.  Of course, the commands you use may
be called something other than `show w' and `show c'; they could even be
mouse-clicks or menu items--whatever suits your program.

You should also get your employer (if you work as a programmer) or your
school, if any, to sign a "copyright disclaimer" for the program, if
necessary.  Here is a sample; alter the names:

Yoyodyne, Inc., hereby disclaims all copyright interest in the program
  `Gnomovision' (which makes passes at compilers) written by James Hacker.

<signature of Ty Coon>, 1 April 1989
  Ty Coon, President of Vice

This General Public License does not permit incorporating your program into
proprietary programs.  If your program is a subroutine library, you may
consider it more useful to permit linking proprietary applications with the
library.  If this is what you want to do, use the GNU Lesser General
Public License instead of this License.
07070100000006000081A40000000000000000000000016690E82200000375000000000000000000000000000000000000001E00000000combustion-1.3+git11/MakefileFB_MODULEDIR ?= $(DESTDIR)/usr/lib/dracut/modules.d/30firstboot
MODULEDIR ?= $(DESTDIR)/usr/lib/dracut/modules.d/35combustion

all:

install-30firstboot:
	install -Dm0644 30firstboot/module-setup.sh $(FB_MODULEDIR)/module-setup.sh
	install -Dm0644 30firstboot/firstboot.target $(FB_MODULEDIR)/firstboot.target
	install -Dm0755 30firstboot/firstboot-detect $(FB_MODULEDIR)/firstboot-detect
	install -Dm0644 30firstboot/firstboot-detect.service $(FB_MODULEDIR)/firstboot-detect.service

install: install-30firstboot
	install -Dm0644 module-setup.sh $(MODULEDIR)/module-setup.sh
	install -Dm0644 combustion.service $(MODULEDIR)/combustion.service
	install -Dm0644 combustion-prepare.service $(MODULEDIR)/combustion-prepare.service
	install -Dm0755 combustion $(MODULEDIR)/combustion
	install -Dm0644 combustion.rules $(MODULEDIR)/combustion.rules

.PHONY: all install install-30firstboot
07070100000007000081A40000000000000000000000016690E82200001F45000000000000000000000000000000000000001F00000000combustion-1.3+git11/README.mdCombustion - configure MicroOS on the first boot
================================================

Combustion is a minimal module for dracut, which runs a user provided script on
the first boot of a system.

You can use this to create additional files, install packages, set up devices 
or even re-partition the hard disk. The configuration can be provided as a
shell script, loaded from an external storage media and is run during boot in a 
new system snapshot. On success, the system will directly boot into that new
snapshot, so that no reboot is needed.

Installation
------------

Run `make install` to install it manually. Usually combustion is packaged up
and installed during image builds already.

How to use it
-------------

The configuration files are copied from a filesystem with the LABEL
"combustion", but to be compatible and co-installable with ignition
(https://github.com/coreos/ignition), the LABEL "ignition" is used as fallback.
All-uppercase labels are accepted as well. Alternatively, if a KIWI selfinstall
.iso is used for deployment (LABEL "INSTALL"), this is used as a fallback.

It expects a directory "combustion" at the root level of the filesystem and
a file "script" inside, which is executed inside a transactional-update shell.

```
 <root directory>
 ├── combustion
 │   ├── script
 │   └── ... other files
 └── ignition (optional)
     └── config.ign
```

If a QEMU fw_cfg blob with the name "opt/org.opensuse.combustion/script" is
found, it is preferred and the content of that is used as script.
Example parameter for QEMU:
-fw_cfg name=opt/org.opensuse.combustion/script,file=/var/combustion-script

If the VMware guestinfo parameter "guestinfo.combustion.script" is set and
nonempty, it is treated as a base64 encoded gzipped script.

You can do everything necessary for initial system configuration from this
script, including addition of ssh keys, adding users, changing passwords
or even doing partitioning changes.

Simple example
--------------

Example for formatting a USB drive and adding a config, which installs the
"vim-small" package and creates a /root/welcome file:

```bash
mkfs.ext4 /dev/sdX
e2label /dev/sdX ignition
mount /dev/sdX /mnt
mkdir -p /mnt/combustion/
cat >/mnt/combustion/script <<EOF
#!/bin/sh
# combustion: network
systemctl enable sshd.service
zypper --non-interactive install vim-small
cp welcome /root/welcome
EOF
echo "Hello User!" >/mnt/combustion/welcome
umount /mnt
```

The `# combustion: network` comment triggers networking initialization before
running the script. This is equivalent to passing "rd.neednet=1" on the kernel
cmdline and so the network configuration parameters (man dracut.cmdline) apply
here as well. If those aren't specified, it defaults to "ip=dhcp" for each
available interface.

More complex configuration example
----------------------------------

This script additionally provides visible feedback during boot, sets a password
and copies a public ssh key (which has to be in the "combustion" folder).

```bash
#!/bin/bash
# combustion: network
# Redirect output to the console
exec > >(exec tee -a /dev/tty0) 2>&1
# Set a password for root, generate the hash with "openssl passwd -6"
echo 'root:$5$.wn2BZHlEJ5R3B1C$TAHEchlU.h2tvfOpOki54NaHpGYKwdNhjaBuSpDotD7' | chpasswd -e
# Add a public ssh key and enable sshd
mkdir -pm700 /root/.ssh/
cat id_rsa_new.pub >> /root/.ssh/authorized_keys
systemctl enable sshd.service
# Install vim-small
zypper --non-interactive install vim-small
# Leave a marker
echo "Configured with combustion" > /etc/issue.d/combustion
# Close outputs and wait for tee to finish.
exec 1>&- 2>&-; wait;
```

Perform modifications in the initrd environment
-----------------------------------------------

Using the `# combustion: prepare` marker, the initrd environment can be modified
for instance to perform tasks before `/sysroot` is mounted or to write
NetworkManager connection configuration into
`/etc/NetworkManager/system-connections/`. If the marker is present, the script
is invoked with `--prepare` as parameter from `combustion-prepare.service`, in
addition to the main invocation inside the transaction later.
Example:

```bash
#!/bin/bash
# combustion: network prepare
set -euxo pipefail

nm_config() {
    umask 077 # Required for NM config
    mkdir -p /etc/NetworkManager/system-connections/
    cat >/etc/NetworkManager/system-connections/static.nmconnection <<-EOF
    [connection]
    id=static
    type=ethernet
    autoconnect=true

[ipv4]
    method=manual
    dns=192.168.100.1
    address1=192.168.100.42/24,192.168.100.1
EOF
}

if [ "${1-}" = "--prepare" ]; then
    nm_config # Configure NM in the initrd
    exit 0
fi

# Redirect output to the console
exec > >(exec tee -a /dev/tty0) 2>&1

nm_config # Configure NM in the system
curl example.com
# Leave a marker
echo "Configured with combustion" > /etc/issue.d/combustion
# Close outputs and wait for tee to finish.
exec 1>&- 2>&-; wait;
```

How it works
------------

### Firstboot detection

Combustion ships a `firstboot` dracut module which introduces `firstboot.target`
as well as a `firstboot-detect.service`. This service mounts `/sysroot/etc`
early in the initrd (in a private namespace, to not trigger `.mount` units and
dependencies out of order). It then checks for the following conditions:

* `combustion.firstboot` or `ignition.firstboot` are present on the kernel
cmdline
* `/etc/machine-id` does not exist in `/sysroot`. Note: Unlike systemd's
`ConditionFirstBoot`, this is not triggered by "uninitialized" in the
machine-id file or influcenced by `systemd.firstboot=` on the kernel cmdline.

If one of them applies, it enables and starts `firstboot.target`. It's
important that all units started by `firstboot.target` are effectively
ordered after `firstboot-detect.service` to prevent loops. Add some Before=
to `firstboot-detect.service` if necessary.

If any of the firstboot configuration mechanisms (combustion, ignition)
find a user specified config, they delete `/var/lib/YaST2/reconfig_system`.
The result is that if (and only if) no configuration for those was provided,
the file still exists in the real system and triggers interactive setup
(jeos-firstboot, YaST Firstboot) if present.

The final system eventually reaches `first-boot-complete.target` and after that
`systemd-machine-id-commit.service`, which commits `/etc/machine-id` to disk and
thus `firstboot-detect.service` no longer triggers `firstboot.target` on
subsequent boots.

### Combustion

The `combustion` dracut module is included by default, but omitted if dracut is
run on an already configured system in `hostonly` mode.

`firstboot.target` pulls in `combustion.service` and
`combustion-prepare.service`. The latter runs after the config drive or
QEMU fw_cfg blob appears (see `combustion.rules` for details). The combustion
configuration is copied from the config source into `/dev/shm/combustion/config`
(this is accessible in `transactional-update shell` later). If the script
contains the `prepare` flag, it's executed now with the `--prepare` option. If
the `network` flag is present, networking is enabled in the initrd. After
`/sysroot` is mounted and network is up (if enabled), `combustion.service` runs,
which tries to activate all mountpoints in the system's /etc/fstab and then
calls transactional-update in a chroot.

In this transactional-update session the script is started and the exit code
recorded. If the script failed, transactional-update rollback is called and
combustion.service marked as failed, which causes booting to fail. Note that a
missing config drive or script is not considered a fatal error and only results
in a warning.

/sysroot is unmounted and mounted again, so that the default subvolume gets
reevaluated and directly booted into.

Now, `initrd-parse-etc.service` can evaluate the final `/sysroot/etc/fstab` and
create the matching `sysroot-FOO.mount` units which are started before switching
into the root filesystem.
07070100000008000081A40000000000000000000000016690E8220000264A000000000000000000000000000000000000002000000000combustion-1.3+git11/combustion#!/bin/bash
# SPDX-FileCopyrightText: 2023 SUSE LLC
# SPDX-License-Identifier: GPL-2.0-or-later
set -euo pipefail

config_mount="/run/combustion/mount"
# Use /dev/shm for data exchange
exchangedir="/dev/shm/combustion/"
config_dir="${exchangedir}/config"

if [ "${1-}" = "--prepare" ]; then
	rm -rf "${exchangedir}"
	mkdir "${exchangedir}"

# Try fw_cfg first
	if [ -e "/sys/firmware/qemu_fw_cfg/by_name/opt/org.opensuse.combustion" ]; then
		mkdir -p "${config_dir}"
		if ! cp /sys/firmware/qemu_fw_cfg/by_name/opt/org.opensuse.combustion/script/raw \
		        "${config_dir}/script"; then
			echo "Failed to copy script from fw_cfg!"
			exit 1
		fi
		# TODO: Support other files, e.g. with a tarball or fs image?
	fi

# Try VMware guestinfo next
	if ! [ -d "${config_dir}" ] && [ "$(systemd-detect-virt)" = "vmware" ]; then
		mkdir -p "${config_dir}"
		# The exit code isn't really useful or documented. Print all errors and only treat
		# a zero exit code + nonempty stdout as success.
		echo "Trying vmware-rpctool"
		if ! vmware-rpctool "info-get guestinfo.combustion.script" > "${config_dir}/script.gz.b64" \
		   || ! [ -s "${config_dir}/script.gz.b64" ] \
		   || ! base64 -d < "${config_dir}/script.gz.b64" | gzip -cd > "${config_dir}/script" \
		   || ! [ -s "${config_dir}/script" ]; then
			# vmware-rpctool failed or the script is empty
			rm -f "${config_dir}/script.gz.b64" "${config_dir}/script"
			rmdir "${config_dir}"
		fi
		rm -f "${config_dir}/script.gz.b64"
	fi

# Try disks next - both lower and upper case
	# "INSTALL" is used as label for KIWI selfinstall .isos. Try those as fallback.
	for label in combustion COMBUSTION ignition IGNITION install INSTALL; do
		[ -d "${config_dir}" ] && break
		[ -e "/dev/disk/by-label/${label}" ] || continue

mkdir -p "${config_mount}"
		if ! mount -o ro /dev/disk/by-label/${label} "${config_mount}"; then
			echo "Failed to mount config drive!"
			rmdir "${config_mount}"
			exit 1
		fi

if [ -d "${config_mount}/combustion" ]; then
			if ! cp -R "${config_mount}/combustion" "${config_dir}"; then
				echo "Failed to copy config!"
				rm -rf "${config_dir}"
				umount "${config_mount}"
				rmdir "${config_mount}"
				exit 1
			fi
		else
			echo "No config found on drive."
		fi

umount "${config_mount}"
		rmdir "${config_mount}"
	done

if ! [ -d "${config_dir}" ]; then
		echo "No config source found"
		exit 0
	fi

if ! [ -e "${config_dir}/script" ]; then
		echo "No config script found!"
		exit 1
	fi

chmod a+x "${config_dir}/script"

# Check for the magic flag "# combustion: prepare" in the script
	if grep -qE '^# combustion:(.*)\<prepare\>' "${config_dir}/script"; then
		# Run the script with the --prepare option
		if ! (cd "${config_dir}"; exec ./script --prepare); then
			echo "script --prepare failed with $?"
			exit 1
		fi
	fi
	# Note: In case ^ creates a NM config by writing to
	# /etc/NetworkManager/system-connections/, nm-initrd-generator must not generate a
	# default configuration anymore. This happens automatically since 1.36.0 (79885656d3).

# Check for the magic flag "# combustion: network" in the script
	if grep -qE '^# combustion:(.*)\<network\>' "${config_dir}/script"; then
		sh -s <<'EOF'
			. /lib/dracut-lib.sh
			# Set rd.neednet if not already done and reevaluate it (module-specific)
			getargbool 0 'rd.neednet' && exit 0
			echo rd.neednet=1 > /etc/cmdline.d/40-combustion-neednet.conf
			if [ -e "${hookdir}/pre-udev/60-net-genrules.sh" ]; then
				# Wicked
				. "${hookdir}/pre-udev/60-net-genrules.sh"
				# Re-trigger generation of network rules and apply them
				udevadm control --reload
				udevadm trigger --subsystem-match net --action add
			elif [ -e "${hookdir}/cmdline/99-nm-config.sh" ]; then
				# NetworkManager
				. "${hookdir}/cmdline/99-nm-config.sh"
			else
				echo "ERROR: unknown network framework" >&2
				exit 1
			fi
EOF
	fi

exit 0
fi

# Set by combustion.service but not ignition-kargs-helper.
# Controls whether config is actually completed by this step,
# triggering deletion of /var/lib/YaST2/reconfig_system
complete=0

if [ "${1-}" = "--complete" ]; then
	complete=1
fi

delete_resolv_conf=0

cleanup() {
	rm -rf "${exchangedir}" || true

if [ "${delete_resolv_conf}" -eq 1 ]; then
        	rm -f /sysroot/etc/resolv.conf || true
	fi

if findmnt /sysroot >/dev/null; then
		# umount and remount so that the new default subvol is used
		umount -R /sysroot
		# Manual umount confuses systemd sometimes because it's async and the
		# .mount unit might still be active when the "start" is queued, making
		# it a noop, which ultimately leaves /sysroot unmounted
		# (https://github.com/systemd/systemd/issues/20329). To avoid that,
		# wait until systemd processed the umount events. In a chroot (or with
		# SYSTEMD_OFFLINE=1) systemctl always succeeds, so avoid an infinite loop.
		if ! systemctl --quiet is-active does-not-exist.mount; then
			while systemctl --quiet is-active sysroot.mount; do sleep 0.5; done
		fi
	fi
	systemctl start sysroot.mount
}

# Note: The /sysroot remounting during cleanup happens unconditionally.
# This is needed as ignition-mount.service's ExecStop is also disabled unconditionally.
trap cleanup EXIT

# Compatibility for ignition-kargs-helper, which drops a script into
# "/run/combustion/mount/combustion" and then calls combustion
if [ -d "${config_mount}/combustion" ]; then
	rm -rf "${config_dir}"
	mkdir -p "${exchangedir}"
	cp -R "${config_mount}/combustion" "${config_dir}"
	chmod a+x "${config_dir}/script"
fi

[ -d "${config_dir}" ] || exit 0

# Make sure /sysroot is mounted
systemctl start sysroot.mount

# Same for /sysroot/usr if it exists (e.g. through mount.usr)
if systemctl cat sysroot-usr.mount &>/dev/null; then
	systemctl start sysroot-usr.mount
fi

# Care needs to be taken that umount -R /sysroot later works as expected,
# taking mount propagation and other processes in private mount namespaces into account.
# Ideally combustion runs in its own mount namespace, but the needed redesign breaks
# some subtle interactions with the outside.
# Make /sysroot private so that the next mounts are not visible in other namespaces.
mount --make-private /sysroot

# Have to take care of x-initrd.mount first and from the outside.
# Note: ignition-kargs-helper calls combustion but already mounted those itself.
awk '$1 !~ /^#/ && $4 ~ /(\<|,)x-initrd\.mount(\>|,)/ { if(system("findmnt /sysroot/" $2 " >/dev/null || mount --target-prefix /sysroot --fstab /sysroot/etc/fstab " $2) != 0) exit 1; }' /sysroot/etc/fstab

# Make sure the old snapshot is relabeled too, otherwise syncing its /etc fails.
(
	set +eu
	. /lib/dracut-lib.sh
	set -eu
	if [ -e "${hookdir}/pre-pivot/50-selinux-microos-relabel.sh" ]; then
		NEWROOT=/sysroot bash -c '. /lib/dracut-lib.sh; . "${hookdir}/pre-pivot/50-selinux-microos-relabel.sh"'
	elif [ -e /sysroot/.autorelabel ] || [ -e /sysroot/etc/selinux/.autorelabel ]; then
		echo "ERROR: Relabel (probably) needed, but selinux-microos-relabel not found."
		exit 1
	fi
)

# Prepare chroot
for i in proc sys dev; do
	# Make these rslave so that unmounting does not affect the real /$i
	mount --make-rslave --rbind /$i /sysroot/$i
done

# Mount everything we can, errors deliberately ignored
chroot /sysroot mount -a || true
# t-u needs writable /var/run and /tmp
findmnt /sysroot/run >/dev/null || mount -t tmpfs tmpfs /sysroot/run
findmnt /sysroot/tmp >/dev/null || mount -t tmpfs tmpfs /sysroot/tmp

# Fake a netconfig setup
if [ -r /etc/resolv.conf ]; then
	mkdir -p /sysroot/run/netconfig/
	cp /etc/resolv.conf /sysroot/run/netconfig/resolv.conf

if ! [ -e /sysroot/etc/resolv.conf ]; then
		if ln -sf /run/netconfig/resolv.conf /sysroot/etc/resolv.conf; then
			delete_resolv_conf=1
		fi
	fi
fi

if [ -x /sysroot/usr/sbin/transactional-update ]; then
	# t-u doesn't allow running arbitrary commands and
	# also ignores the shell's exit code, so DIY.
	if ! chroot /sysroot transactional-update shell <<EOF; then
		cd "${config_dir}"
		./script
		echo \$? > "${exchangedir}/retval"
		# Snapshot got touched while the policy isn't active, needs relabeling again.
		[ -e /etc/selinux/.relabelled ] && >> /etc/selinux/.autorelabel
EOF
		echo "transactional-update failed"
		exit 1
	fi

if ! [ -e "${exchangedir}/retval" ] || [ "$(cat "${exchangedir}/retval")" -ne 0 ]; then
		echo "Command failed, rolling back"
		chroot /sysroot transactional-update --no-selfupdate rollback
		exit 1
	fi

# If the mount options for /sysroot include subvol(id)=...,
	# it would mount the old snapshot again. Override it.
	# At this point, /sysroot is mounted so systemctl show returns the active mount options,
	# not the configured ones. Use cat to get the configured ones instead.
	if systemctl cat sysroot.mount | grep -q '\<subvol$id$\?='; then
		# systemctl cat can't query a specific property, so work with the active options instead here...
		rootopts="$(systemctl show -P Options sysroot.mount | sed -Ee 's/(^|,)subvol=[^,]*(,|$)//g;s/(^|,)subvolid=[^,]*(,|$)//g')"
		# Apparently there is no better API?
		newdefault=$(btrfs subvolume get-default /sysroot | sed -e 's/^.* path $[^[:space:]]*$.*$/\1/')
		# Drop-ins in /etc have precedence over generated files in /run.
		mkdir -p /etc/systemd/system/sysroot.mount.d/
		cat > /etc/systemd/system/sysroot.mount.d/combustion-newsubvol.conf <<-EOF
			[Mount]
			Options=${rootopts},subvol=${newdefault}
		EOF
		systemctl daemon-reload # Unfortunately required for this :-/
	fi
else
	mount -o remount,rw /sysroot
	if ! chroot /sysroot sh -e -c "cd '${config_dir}'; ./script"; then
		echo "Command failed"
		exit 1
	fi
	chroot /sysroot snapper --no-dbus create -d "After combustion configuration" --userdata "important=yes" || :
fi

if [ "${complete}" -eq 1 ]; then
	rm -f /sysroot/var/lib/YaST2/reconfig_system
fi

exit 0
07070100000009000081A40000000000000000000000016690E82200000379000000000000000000000000000000000000003000000000combustion-1.3+git11/combustion-prepare.service[Unit]
Description=Combustion (preparations)
DefaultDependencies=false

# Config drive has to be available
Wants=dev-combustion-config.device
After=dev-combustion-config.device

# If both Ignition and Combustion are active make sure to run their
# configuration scripts sequentially, as both try to mount the configuration
# device
After=ignition-setup-user.service

# This may enable network services in the same way, so make sure the prepare
# script could write configiguration before networking is enabled.
Before=ignition-enable-network.service

# This reconfigures networking, which runs during the initqueue (wicked)
# or has its own service (NM)
Before=dracut-initqueue.service nm-initrd.service

Conflicts=initrd-switch-root.target umount.target
Conflicts=dracut-emergency.service emergency.service emergency.target

[Service]
Type=oneshot
ExecStart=/usr/bin/combustion --prepare
0707010000000A000081A40000000000000000000000016690E822000007F9000000000000000000000000000000000000002600000000combustion-1.3+git11/combustion.rules# SPDX-FileCopyrightText: 2024 SUSE LLC
# SPDX-License-Identifier: GPL-2.0-or-later

# It's not possible to wait for one of multiple devices to appear, so
# introduce a dev-combustion-config.device unit as alias to the actual device(s).
# This is only used for the .service dependencies.

# Filesystems with either combustion or ignition as label
ACTION!="remove", SUBSYSTEM=="block", ENV{ID_FS_LABEL}=="combustion", ENV{SYSTEMD_ALIAS}+="/dev/combustion/config"
ACTION!="remove", SUBSYSTEM=="block", ENV{ID_FS_LABEL}=="COMBUSTION", ENV{SYSTEMD_ALIAS}+="/dev/combustion/config"
ACTION!="remove", SUBSYSTEM=="block", ENV{ID_FS_LABEL}=="ignition", ENV{SYSTEMD_ALIAS}+="/dev/combustion/config"
ACTION!="remove", SUBSYSTEM=="block", ENV{ID_FS_LABEL}=="IGNITION", ENV{SYSTEMD_ALIAS}+="/dev/combustion/config"
# These can be used as config source as well, but they cannot be used as providers for
# /dev/combustion/config, as some other config source with higher priority might show up later.
#ACTION!="remove", SUBSYSTEM=="block", ENV{ID_FS_LABEL}=="install", ENV{SYSTEMD_ALIAS}+="/dev/combustion/config"
#ACTION!="remove", SUBSYSTEM=="block", ENV{ID_FS_LABEL}=="INSTALL", ENV{SYSTEMD_ALIAS}+="/dev/combustion/config"
# QEMU fw_cfg blob with key opt/org.opensuse.combustion
# There are add events for keys inside fw_cfg, but they are unreliable: https://github.com/systemd/systemd/issues/28638
# Using the platform device with add|bind does not work with TAG+="systemd" for some reason, so use the module...
ACTION!="remove", SUBSYSTEM=="module", KERNEL=="qemu_fw_cfg", TEST=="/sys/firmware/qemu_fw_cfg/by_name/opt/org.opensuse.combustion", ENV{SYSTEMD_ALIAS}+="/dev/combustion/config", TAG+="systemd"
# VMware guestinfo value. Using sh allows PATH lookup traversal and checking for nonempty stdout without logging the value.
ACTION!="remove", DEVPATH=="/devices/virtual/misc/vmci", PROGRAM=="/bin/sh -c '[ $$(vmware-rpctool \"info-get guestinfo.combustion.script\" | wc -c) -gt 2 ]'", ENV{SYSTEMD_ALIAS}+="/dev/combustion/config", TAG+="systemd"
0707010000000B000081A40000000000000000000000016690E82200000390000000000000000000000000000000000000002800000000combustion-1.3+git11/combustion.service[Unit]
Description=Combustion
DefaultDependencies=false

# /sysroot needs to be available, but it's temporarily stopped
# for remounting so a direct requirement is not possible
Requires=initrd-root-device.target
After=initrd-root-device.target

# combustion-prepare sets up network, if required
Requires=combustion-prepare.service
After=combustion-prepare.service

# Optionally make network available
After=network.target

# After ignition completed its stuff
After=ignition-complete.target

# So that /etc/fstab's x-initrd.mount entries are read (again) later
Before=initrd-parse-etc.service

# Without DefaultDependencies the target would be reached without us
Before=firstboot.target

Conflicts=initrd-switch-root.target umount.target
Conflicts=dracut-emergency.service emergency.service emergency.target

[Service]
Type=oneshot
ExecStart=/usr/bin/combustion --complete

[Install]
RequiredBy=firstboot.target
0707010000000C000081A40000000000000000000000016690E82200000692000000000000000000000000000000000000002500000000combustion-1.3+git11/module-setup.shcheck() {
	# Omit if building for this already configured system
	if [[ $hostonly ]] && [ -e "${dracutsysrootdir}/etc/machine-id" ]; then
		return 255
	fi
	return 0
}

depends() {
	echo bash firstboot network systemd url-lib
}

install() {
	inst_simple "${moddir}/combustion.service" "${systemdsystemunitdir}/combustion.service"
	inst_simple "${moddir}/combustion-prepare.service" "${systemdsystemunitdir}/combustion-prepare.service"
	inst_simple "${moddir}/combustion.rules" "/etc/udev/rules.d/70-combustion.rules"
	$SYSTEMCTL -q --root "$initdir" enable combustion.service
	inst_multiple awk chroot findmnt grep rmdir systemd-detect-virt wc
	inst_multiple -o base64 gzip vmware-rpctool
	inst_simple "${moddir}/combustion" "/usr/bin/combustion"

# ignition-mount.service mounts stuff below /sysroot in ExecStart and umounts
	# it on ExecStop, failing if umounting fails. This conflicts with the
	# mounts/umounts done by combustion. Just let combustion do it instead.
	mkdir -p "${initdir}/${systemdsystemunitdir}/ignition-mount.service.d/"
	echo -e "[Service]\nExecStop=" > "${initdir}/${systemdsystemunitdir}/ignition-mount.service.d/noexecstop.conf"

# Wait up to 10s (30s on aarch64) for the config drive
	devtimeout=10
	[ "$(uname -m)" = "aarch64" ] && devtimeout=30
	mkdir -p "${initdir}/${systemdsystemunitdir}/dev-combustion-config.device.d/"
	echo -e "[Unit]\nJobTimeoutSec=${devtimeout}" > "${initdir}/${systemdsystemunitdir}/dev-combustion-config.device.d/timeout.conf"
}

installkernel() {
	# Modules for config sources
	hostonly='' instmods ext4
	# hostonly is fine here, only include them if they fit the current HW
	instmods qemu_fw_cfg vmw_vsock_vmci_transport
}
07070100000000000000000000000000000000000000010000000000000000000000000000000000000000000000000000000B00000000TRAILER!!!95 blocks

Places

File combustion-1.3+git11.obscpio of Package combustion (Revision 092a6ce9fd3db1933cdc430fec54504c)

Places