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#!/bin/bash
# Copyright (C) 2021 The Software Heritage developers
# See the AUTHORS file at the top-level directory of this distribution
# License: GNU General Public License version 3, or any later version
# See top-level LICENSE file for more information
set -e
: ${LIBVIRT_URI:=qemu:///system}
VIRSH="virsh --connect $LIBVIRT_URI"
VIRT_INSTALL="virt-install --connect $LIBVIRT_URI"
function ssh_key() {
if ! test -f cluster_key; then
ssh-keygen -f cluster_key -N '' -t rsa
fi
chmod 600 cluster_key
}
function stop() {
local ids="$@"
for id in $ids ; do
$VIRSH destroy ceph$id >& /dev/null || true
$VIRSH undefine ceph$id >& /dev/null || true
rm -f ceph$id.qcow2
rm -f disk$id*.img
done
$VIRSH net-destroy ceph >& /dev/null || true
$VIRSH net-undefine ceph >& /dev/null || true
}
function start() {
local ids="$@"
ssh_key
> ssh-config
if ! test -f debian-11.qcow2 ; then
sudo virt-builder debian-11 --output debian-11.qcow2 --size 10G --format qcow2 --install sudo --run-command 'dpkg-reconfigure --frontend=noninteractive openssh-server' --run-command 'useradd -s /bin/bash -m debian || true ; echo "debian ALL=(ALL) NOPASSWD:ALL" > /etc/sudoers.d/90-debian' --ssh-inject debian:file:cluster_key.pub --edit '/etc/network/interfaces: s/ens2/enp1s0/'
fi
if ! $VIRSH net-list --name | grep ceph ; then
cat > ceph-net.xml <<EOF
<network>
<name>ceph</name>
<forward mode='nat'/>
<bridge name='virbrceph' stp='on' delay='0'/>
<ip address='10.11.12.1' netmask='255.255.255.0'>
<dhcp>
<range start='10.11.12.100' end='10.11.12.200'/>
<host mac='52:54:00:00:00:01' name='ceph1' ip='10.11.12.211'/>
<host mac='52:54:00:00:00:02' name='ceph2' ip='10.11.12.212'/>
<host mac='52:54:00:00:00:03' name='ceph3' ip='10.11.12.213'/>
<host mac='52:54:00:00:00:04' name='ceph4' ip='10.11.12.214'/>
<host mac='52:54:00:00:00:05' name='ceph5' ip='10.11.12.215'/>
<host mac='52:54:00:00:00:06' name='ceph6' ip='10.11.12.216'/>
<host mac='52:54:00:00:00:07' name='ceph7' ip='10.11.12.217'/>
<host mac='52:54:00:00:00:08' name='ceph8' ip='10.11.12.218'/>
<host mac='52:54:00:00:00:09' name='ceph9' ip='10.11.12.219'/>
</dhcp>
</ip>
</network>
EOF
$VIRSH net-define ceph-net.xml
$VIRSH net-start ceph
fi
for id in $ids ; do
$VIRSH destroy ceph$id >& /dev/null || true
$VIRSH undefine ceph$id >& /dev/null || true
rm -f ceph$id.qcow2
cp --sparse=always debian-11.qcow2 ceph$id.qcow2
sudo virt-sysprep -a ceph$id.qcow2 --enable customize --hostname ceph$id
$VIRT_INSTALL --network network=ceph,mac=52:54:00:00:00:0$id --boot hd --name ceph$id --memory 2048 --vcpus 1 --cpu host --disk path=$(pwd)/ceph$id.qcow2,bus=virtio,format=qcow2 --os-type=linux --os-variant=debian10 --graphics none --noautoconsole
case $id in
1)
;;
2)
$VIRSH detach-device ceph$id ../rng.xml --live
for drive in b c ; do
#
# Without the sleep it fails with:
#
# error: Failed to attach disk
# error: internal error: No more available PCI slots
#
sleep 10
rm -f disk$id$drive.img
qemu-img create -f raw disk$id$drive.img 20G
sudo chown libvirt-qemu disk$id$drive.img
$VIRSH attach-disk ceph$id --source $(pwd)/disk$id$drive.img --target vd$drive --persistent
done
;;
*)
rm -f disk$id.img
qemu-img create -f raw disk$id.img 20G
sudo chown libvirt-qemu disk$id.img
$VIRSH attach-disk ceph$id --source $(pwd)/disk$id.img --target vdb --persistent
;;
esac
cat >> ssh-config <<EOF
Host ceph$id
HostName 10.11.12.21$id
Port 22
User debian
IdentityFile $(pwd)/cluster_key
IdentityAgent none
ForwardAgent yes
TCPKeepAlive yes
Compression no
CheckHostIP no
StrictHostKeyChecking no
EOF
done
}
function restart() {
local ids="$@"
stop $ids
start $ids
}
cd $(dirname $0)
mkdir -p context
ln -sf $(pwd)/libvirt.yml context/setup.yml
cd context
if test "$1" ; then
"$@"
else
restart 1 2 3 5 4 6 7 8
fi

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