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confluent/confluent_osdeploy/el7-diskless/profiles/default/scripts/imageboot.sh
2023-08-24 10:53:00 -04:00

131 lines
6.1 KiB
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. /lib/dracut-lib.sh
mkdir -p /mnt/remoteimg /mnt/remote /mnt/overlay
if [ "untethered" = "$(getarg confluent_imagemethod)" ]; then
mount -t tmpfs untethered /mnt/remoteimg
curl https://$confluent_mgr/confluent-public/os/$confluent_profile/rootimg.sfs -o /mnt/remoteimg/rootimg.sfs
else
confluent_urls="$confluent_urls https://$confluent_mgr/confluent-public/os/$confluent_profile/rootimg.sfs"
modprobe fuse
/opt/confluent/bin/urlmount $confluent_urls /mnt/remoteimg
fi
/opt/confluent/bin/confluent_imginfo /mnt/remoteimg/rootimg.sfs > /tmp/rootimg.info
modprobe loop
loopdev=$(losetup -f)
export mountsrc=$loopdev
losetup -r $loopdev /mnt/remoteimg/rootimg.sfs
if grep '^Format: confluent_crypted' /tmp/rootimg.info > /dev/null; then
while ! curl -sf -H "CONFLUENT_NODENAME: $nodename" -H "CONFLUENT_APIKEY: $(cat /etc/confluent/confluent.apikey)" https://$confluent_mgr/confluent-api/self/profileprivate/pending/rootimg.key > /tmp/rootimg.key; do
echo "Unable to retrieve private key from $confluent_mgr (verify that confluent can access /var/lib/confluent/private/os/$confluent_profile/pending/rootimg.key)"
sleep 1
done
cipher=$(head -n 1 /tmp/rootimg.key)
key=$(tail -n 1 /tmp/rootimg.key)
len=$(wc -c /mnt/remoteimg/rootimg.sfs | awk '{print $1}')
len=$(((len-4096)/512))
dmsetup create cryptimg --table "0 $len crypt $cipher $key 0 $loopdev 8"
/opt/confluent/bin/confluent_imginfo /dev/mapper/cryptimg > /tmp/rootimg.info
mountsrc=/dev/mapper/cryptimg
fi
if grep '^Format: squashfs' /tmp/rootimg.info > /dev/null; then
mount -o ro $mountsrc /mnt/remote
elif grep '^Format: confluent_multisquash' /tmp/rootimg.info; then
tail -n +3 /tmp/rootimg.info | awk '{gsub("/", "_"); print "echo 0 " $4 " linear '$mountsrc' " $3 " | dmsetup create mproot" $7}' > /tmp/setupmount.sh
. /tmp/setupmount.sh
cat /tmp/setupmount.sh |awk '{printf "mount /dev/mapper/"$NF" "; sub("mproot", ""); gsub("_", "/"); print "/mnt/remote"$NF}' > /tmp/mountparts.sh
. /tmp/mountparts.sh
fi
#mount -t tmpfs overlay /mnt/overlay
modprobe zram
memtot=$(grep ^MemTotal: /proc/meminfo|awk '{print $2}')
memtot=$((memtot/2))$(grep ^MemTotal: /proc/meminfo | awk '{print $3'})
echo $memtot > /sys/block/zram0/disksize
mkfs.xfs /dev/zram0 > /dev/null
mount -o discard /dev/zram0 /mnt/overlay
if [ ! -f /tmp/mountparts.sh ]; then
mkdir -p /mnt/overlay/upper /mnt/overlay/work
mount -t overlay -o upperdir=/mnt/overlay/upper,workdir=/mnt/overlay/work,lowerdir=/mnt/remote disklessroot /sysroot
else
for srcmount in $(cat /tmp/mountparts.sh | awk '{print $3}'); do
mkdir -p /mnt/overlay${srcmount}/upper /mnt/overlay${srcmount}/work
mount -t overlay -o upperdir=/mnt/overlay${srcmount}/upper,workdir=/mnt/overlay${srcmount}/work,lowerdir=${srcmount} disklesspart /sysroot${srcmount#/mnt/remote}
done
fi
mkdir -p /sysroot/etc/ssh
mkdir -p /sysroot/etc/confluent
mkdir -p /sysroot/root/.ssh
cp /root/.ssh/* /sysroot/root/.ssh
chmod 700 /sysroot/root/.ssh
cp /etc/confluent/* /sysroot/etc/confluent/
cp /etc/ssh/*key* /sysroot/etc/ssh/
for pubkey in /etc/ssh/ssh_host*key.pub; do
certfile=${pubkey/.pub/-cert.pub}
privfile=${pubkey%.pub}
if [ -s $certfile ]; then
echo HostCertificate $certfile >> /sysroot/etc/ssh/sshd_config
fi
echo HostKey $privfile >> /sysroot/etc/ssh/sshd_config
done
mkdir -p /sysroot/dev /sysroot/sys /sysroot/proc /sysroot/run
if [ ! -z "$autocons" ]; then
autocons=${autocons%,*}
mkdir -p /run/systemd/generator/getty.target.wants
ln -s /usr/lib/systemd/system/serial-getty@.service /run/systemd/generator/getty.target.wants/serial-getty@${autocons}.service
fi
while [ ! -e /sysroot/sbin/init ]; do
echo "Failed to access root filesystem or it is missing /sbin/init"
echo "System should be accessible through ssh at port 2222 with the appropriate key"
while [ ! -e /sysroot/sbin/init ]; do
sleep 1
done
done
rootpassword=$(grep ^rootpassword: /etc/confluent/confluent.deploycfg)
rootpassword=${rootpassword#rootpassword: }
if [ "$rootpassword" = "null" ]; then
rootpassword=""
fi
if [ ! -z "$rootpassword" ]; then
sed -i "s@root:[^:]*:@root:$rootpassword:@" /sysroot/etc/shadow
fi
for i in /ssh/*.ca; do
echo '@cert-authority *' $(cat $i) >> /sysroot/etc/ssh/ssh_known_hosts
done
echo HostbasedAuthentication yes >> /sysroot/etc/ssh/sshd_config
echo HostbasedUsesNameFromPacketOnly yes >> /sysroot/etc/ssh/sshd_config
echo IgnoreRhosts no >> /sysroot/etc/ssh/sshd_config
sshconf=/sysroot/etc/ssh/ssh_config
if [ -d /sysroot/etc/ssh/ssh_config.d/ ]; then
sshconf=/sysroot/etc/ssh/ssh_config.d/01-confluent.conf
fi
echo 'Host *' >> $sshconf
echo ' HostbasedAuthentication yes' >> $sshconf
echo ' EnableSSHKeysign yes' >> $sshconf
echo ' HostbasedKeyTypes *ed25519*' >> $sshconf
curl -sf -H "CONFLUENT_NODENAME: $nodename" -H "CONFLUENT_APIKEY: $(cat /etc/confluent/confluent.apikey)" https://$confluent_mgr/confluent-api/self/nodelist > /sysroot/etc/ssh/shosts.equiv
cp /sysroot/etc/ssh/shosts.equiv /sysroot/root/.shosts
chmod 640 /sysroot/etc/ssh/*_key
chroot /sysroot chgrp ssh_keys /etc/ssh/*_key
cp /tls/*.pem /sysroot/etc/pki/ca-trust/source/anchors/
chroot /sysroot/ update-ca-trust
curl -sf https://$confluent_mgr/confluent-public/os/$confluent_profile/scripts/onboot.service > /sysroot/etc/systemd/system/onboot.service
mkdir -p /sysroot/opt/confluent/bin
curl -sf https://$confluent_mgr/confluent-public/os/$confluent_profile/scripts/onboot.sh > /sysroot/opt/confluent/bin/onboot.sh
chmod +x /sysroot/opt/confluent/bin/onboot.sh
cp /opt/confluent/bin/apiclient /sysroot/opt/confluent/bin
ln -s /etc/systemd/system/onboot.service /sysroot/etc/systemd/system/multi-user.target.wants/onboot.service
cp /etc/confluent/functions /sysroot/etc/confluent/functions
if grep installtodisk /proc/cmdline > /dev/null; then
. /etc/confluent/functions
run_remote installimage
exec reboot -f
fi
mv /lib/modules/$(uname -r) /lib/modules/$(uname -r)-ramfs
ln -s /sysroot/lib/modules/$(uname -r) /lib/modules/
mv /lib/firmware /lib/firmware-ramfs
ln -s /sysroot/lib/firmware /lib/firmware
exec /opt/confluent/bin/start_root