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.
This is the current version being deployed to the Azure fleet for other
distros. This update contains a fix for:
Failed to get the PID of the DHCP client: invalid literal for int() with base 10: 'MainPID=1640'
The upstream fix (stripping MainPid=) is in
https://github.com/Azure/WALinuxAgent/pull/2784.
The patch has also been updated to fix the error:
Unable to setup the persistent firewall rules: [Errno 30] Read-only file system: '/lib/systemd/system/waagent-network-setup.service'
by redirecting unit file installation to /etc/systemd/system. This change
requires handling in manglefs.sh as package installation unfortunately uses the
same path. This also requires adding a dependency on systemd-sysext.service to
that unit, as it depends on python, which is done through a drop-in.
A final change is handling interface restart. RedHat and Ubuntu bounce a single
link while Flatcar has so far used the "coreos" implementation (restart the
whole systemd-networkd), which forced a full dhcp lease renewal. Follow the
approaches of other distros by copying their implementation of restart_if.
Signed-off-by: Jeremi Piotrowski <jpiotrowski@microsoft.com>
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.
We provide our own config and dropins for setting up environment. Also
do not install perl stuff as perl interpreter is not available in
production images.
