In the release profile of Cargo.toml, add `codegen-units = 1`,
`strip = true`, and remove `debug = true`, to reduce binary size of
afterburn included in production images.
Fix build issue that started to appear in afterburn 5.5.0. Every public
function for the amd64 part must have a corresponding empty function in
the unsupported part, so that cross-compile for arm64 can work.
0003-encode-information-for-systemd-networkd-wait-online.patch
can be dropped, as it was already merged to upstream.
d2cc340038
Since upstream does not enable `lto = true` any more in
464c7f9f0a,
it is not necessary to keep the LTO patch.
Just drop it.
Adjust Flatcar patches 000[12]* for afterburn 5.5.0.
For 0001* to be compiled, it is necessary to add again the hostname
crate, which is not included in 5.5 any more by default.
Otherwise it gets restarted a few times, which displays this line in the
logs:
```
Nov 30 13:28:41.819250 enable-oslogin[1232]: /etc/pam.d/sshd already exists. Not enabling OS Login
```
Signed-off-by: Mathieu Tortuyaux <mtortuyaux@microsoft.com>
The removal of files in the overlay present in the lowerdir creates
whiteout entries that mask the lowerdir entries. For those files that
have a tmpfile rule for creation, a reboot would cause the file to be
created in the upperdir, meaning this file is not updated from the
lowerdir when it changes. In addition we have filtered out some tmpfile
rules that caused upcopies (symlinks and directories) which meant that
removing the /etc/resolv.conf symlink didn't bring it back after reboot.
To make files from the lowerdir show up if they have a tmpfile rule that
normally would recreate them we keep a list of whiteout entries that we
clean up on boot. This also prevents freezing files because
systemd-tmpfiles does not need to recreate them in the upperdir.
The special Brightbox image uses the OpenStack userdata in Ignition but
lacked Afterburn usage. It actually works to use the OpenStack image and
directly which also enables Afterburn, thus we can drop the special
image.
Don't build a special image for Brightbox but recommend to use OpenStack
images directly. A symlink is added to help with the download of
hardcoded user scripts.
For Brightbox we can use the OpenStack image but the import only works
with unpacked images. After we enabled internal qcow2 compression the
.gz or .bz2 external compression doesn't provide any benefits and makes
the import more complicated.
Provide the OpenStack image without external compression in addition.
The other files are kept for now but we could also delete them if we
announce this in advance.
