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nuageinit: add support for OpenStack network config

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Add naive support for openstack network config.
if no config driver have been found, try to detect that we are running a
VM on openstack via the smbios information, use the first iface
available and temporary activate dhcp on it, to be able to fetch the
necessary informations for cloudinit.

While here make the rc script execute after devmatch, some ethernet
device might be attached via devmatch and may be needed for cloudinit.

Tested on OVHCloud Public Cloud.

Approved by: 	re (cperviva)
MFC after:	3 weeks
Sponsored by:	OVHCloud

(cherry picked from commit 2775b9b0bcc278dd4183b57784953c26a3fcdc89)
(cherry picked from commit 6c682f5c38)
This commit is contained in:
Baptiste Daroussin 2024-10-29 14:17:39 +01:00
parent b658d3ea49
commit ea310d18b2
1 changed files with 37 additions and 8 deletions
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45
libexec/rc/rc.d/nuageinit
View file

@ -2,7 +2,7 @@
#
# PROVIDE: nuageinit
# REQUIRE: mountcritlocal zfs
# REQUIRE: mountcritlocal zfs devmatch
# BEFORE: NETWORKING
# KEYWORD: firstboot
@ -14,6 +14,18 @@ start_cmd="nuageinit_start"
stop_cmd=":"
rcvar="nuageinit_enable"
fetch_openstack()
{
cd /media/nuageinit/openstack/latest
for file in meta_data.json network_data.json user_data; do
fetch http://169.254.169.254/openstack/latest/$file || :
done
if [ -f user_data ]; then
chmod 755 user_data
fi
cd -
}
nuageinit_start()
{
local citype
@ -34,13 +46,28 @@ nuageinit_start()
fi
unset drive
done
if [ -z "$drive" ]; then
# try to detect networked based instance
err 1 "Impossible to find a cloud init provider"
if [ -n "$drive" ]; then
mkdir -p /media/nuageinit
fs=$(fstyp $drive 2> /dev/null)
mount -t $fs $drive /media/nuageinit
else
product=$(kenv smbios.system.product)
case "$product" in
OpenStack*)
mkdir -p /media/nuageinit/openstack/latest
ifaces=$(ifconfig -l ether)
set -- $ifaces
dhclient -p /tmp/ephemeraldhcp.pid $1
fetch_openstack
pkill -F /tmp/ephemeraldhcp.pid
citype=config-2
;;
*)
# try to detect networked based instance
err 1 "Impossible to find a cloud init provider"
;;
esac
fi
mkdir -p /media/nuageinit
fs=$(fstyp $drive 2> /dev/null)
mount -t $fs $drive /media/nuageinit
# according to the specification, the content is either
# in the openstack or ec2 directory
case "$citype" in
@ -59,8 +86,10 @@ nuageinit_start()
esac
if [ -n "$drive" ]; then
umount /media/nuageinit
rmdir /media/nuageinit
else
rm -rf /media/nuageinit
fi
rmdir /media/nuageinit
}
load_rc_config $name