distribute VM-images with aria2 instead of ctorrent
This commit is contained in:
Raphael Dannecker
parent
e30a7032a5
commit
40962fd9de
23 changed files with 444 additions and 434 deletions
173
roles/lmn_vm/files/vm-run
Executable file
173
roles/lmn_vm/files/vm-run
Executable file
|
|
@ -0,0 +1,173 @@
|
|||
#!/usr/bin/bash
|
||||
# create and run clone
|
||||
|
||||
set -eu
|
||||
|
||||
show_help() {
|
||||
cat << EOF >&2
|
||||
Usage: $(basename "$0") [-n] vmname"
|
||||
Create a new clone, start the vm (if not yet running) and run virt-viewer.
|
||||
Squid-Proxy will be started too.
|
||||
-n new clone will be created, even if exists
|
||||
-p new clone will be created persistent, so available after reboot too
|
||||
-s qemu:///system instead of default qemu:///session
|
||||
EOF
|
||||
}
|
||||
|
||||
exit_script() {
|
||||
echo "run-vm.sh ${VM_NAME} terminated by trap!" >> "/tmp/${UID}/exit-run-vm.log"
|
||||
virsh --connect="${QEMU}" destroy "${VM_NAME}-clone"
|
||||
trap - SIGHUP SIGINT SIGTERM # clear the trap
|
||||
kill -- -$$ # Sends SIGTERM to child/sub processes
|
||||
}
|
||||
|
||||
check_images() {
|
||||
# sync vm-torrents and machine definition file
|
||||
sudo -u lmnsynci /usr/local/bin/vm-sync get_file "${VM_NAME}.xml" "${VM_NAME}.qcow2.torrent"
|
||||
[[ -f "${VM_NAME}" ]] && sudo -u lmnsynci /usr/local/bin/vm-sync delete_outdated_image "${VM_NAME}.qcow2"
|
||||
|
||||
BACKINGARRAY=()
|
||||
imgfile="${VM_SYSDIR}/${VM_NAME}.qcow2" && [[ -f "${VM_DIR}/${VM_NAME}.qcow2" ]] && imgfile="${VM_DIR}/${VM_NAME}.qcow2"
|
||||
BACKINGARRAY+=("${imgfile}")
|
||||
echo "Imgfile=$imgfile"
|
||||
if [[ ! -f "${imgfile}" ]] || ! qemu-img info -U "${imgfile}" | grep "file format: qcow2"; then
|
||||
if [[ ! -f "${VM_SYSDIR}/${VM_NAME}.qcow2.torrent" ]]; then
|
||||
echo "no base VM disk '${VM_NAME}.qcow2' found and/or ${VM_NAME} not found on server" >&2
|
||||
exit 1
|
||||
fi
|
||||
# sync vm-disk image by torrent
|
||||
echo "Try to sync VM ${VM_NAME} by torrent"
|
||||
sudo -u lmnsynci /usr/local/bin/vm-sync get_image "${VM_NAME}"
|
||||
fi
|
||||
|
||||
backingfile=$(qemu-img info -U "${imgfile}" | grep "^backing file:" | cut -d ' ' -f 3)
|
||||
while [[ -n "${backingfile}" ]]; do
|
||||
echo "Backingfile required: ${backingfile}"
|
||||
imgfile="${VM_SYSDIR}/${backingfile}" && [[ -f "${VM_DIR}/${backingfile}" ]] && imgfile="${VM_DIR}/${backingfile}"
|
||||
BACKINGARRAY+=("${imgfile}")
|
||||
if [[ ! -f "${imgfile}" ]] || ! qemu-img info -U "${imgfile}" | grep "file format: qcow2"; then
|
||||
# sync vm-disk image by torrent
|
||||
echo "Try to sync backingfile ${backingfile} by torrent"
|
||||
sudo -u lmnsynci /usr/local/bin/vm-sync get_file "${backingfile}.torrent"
|
||||
[[ -f "${backingfile}" ]] && sudo -u lmnsynci /usr/local/bin/vm-sync delete_outdated_image "${backingfile}"
|
||||
sudo -u lmnsynci /usr/local/bin/vm-sync get_image "${backingfile%.qcow2}"
|
||||
fi
|
||||
backingfile=$(qemu-img info -U "${imgfile}" | grep "^backing file:" | cut -d ' ' -f 3)
|
||||
done
|
||||
|
||||
echo "VM-Image and required backingfiles available"
|
||||
echo "Now, let's check the images."
|
||||
|
||||
# Check VM-Images in reverse order
|
||||
for ((i=${#BACKINGARRAY[@]}-1; i>=0; i--))
|
||||
do
|
||||
echo "Checking ${BACKINGARRAY[$i]}"
|
||||
if ! qemu-img check -U "${BACKINGARRAY[$i]}" 2>/dev/null; then
|
||||
echo "check failed!"
|
||||
echo "sync ${BACKINGARRAY[$i]} again"
|
||||
sudo -u lmnsynci /usr/local/bin/vm-sync get_image "$(basename "${BACKINGARRAY[$i]}" .qcow2)"
|
||||
fi
|
||||
done
|
||||
|
||||
echo "VM-Image and required backingfiles available and checked"
|
||||
}
|
||||
|
||||
create_clone() {
|
||||
local VM_NAME="$1"
|
||||
local VM_XML="${VM_DIR}/${VM_NAME}-clone.xml"
|
||||
|
||||
if ! [[ -f "${VM_SYSDIR}/${VM_NAME}.xml" && -f "${VM_SYSDIR}/${VM_NAME}.qcow2" ]] && ! [[ -f "${VM_DIR}/${VM_NAME}.xml" && -f "${VM_DIR}/${VM_NAME}.qcow2" ]]; then
|
||||
echo "xml or qcow2 File does not exists." >&2
|
||||
exit 1
|
||||
fi
|
||||
|
||||
# Create User-VM-Dir and link system VM-Images
|
||||
[[ -d "${VM_DIR}" ]] || mkdir -p "${VM_DIR}"
|
||||
if [[ "${PERSISTENT}" -eq 1 ]]; then
|
||||
sudo /usr/local/bin/vm-link-images -p
|
||||
else
|
||||
sudo /usr/local/bin/vm-link-images
|
||||
fi
|
||||
|
||||
# Create backing file
|
||||
cd "${VM_DIR}"
|
||||
qemu-img create -f qcow2 -F qcow2 -b "${VM_NAME}.qcow2" "${VM_NAME}-clone.qcow2"
|
||||
|
||||
# Create machine-definition-file
|
||||
cp "${VM_DIR}/${VM_NAME}.xml" "${VM_XML}"
|
||||
|
||||
# set VM_DIR:
|
||||
sed -i "s:VMIMAGEDIR:${VM_DIR}:" "${VM_XML}"
|
||||
# and actually rename the vm (this also updates part of the storage path):
|
||||
sed -i "s/${VM_NAME}/${VM_NAME}-clone/" "${VM_XML}"
|
||||
# set virtiofs-Socket
|
||||
sed -i "s:VIRTIOFSSOCKET:/run/user/${UID}/virtiofs-${VM_NAME}.sock:" "${VM_XML}"
|
||||
|
||||
# find macvtap interface MAC address:
|
||||
MAC="$(ip link | grep -A1 "vm-macvtap" |
|
||||
sed -nE "s%\s+link/ether ([[:xdigit:]:]{17}) .+%\1%p")"
|
||||
sed -i -E -e "s/MACMACVTAP/$MAC/" "${VM_XML}"
|
||||
}
|
||||
|
||||
QEMU='qemu:///session'
|
||||
|
||||
NEWCLONE=0
|
||||
PERSISTENT=0
|
||||
|
||||
source /etc/lmn/vm.conf
|
||||
|
||||
while getopts ':pns' OPTION; do
|
||||
case "$OPTION" in
|
||||
p)
|
||||
PERSISTENT=1
|
||||
VM_DIR="${VM_DIR_PERSISTENT}"
|
||||
;;
|
||||
n)
|
||||
NEWCLONE=1
|
||||
;;
|
||||
s)
|
||||
QEMU='qemu:///system'
|
||||
;;
|
||||
?)
|
||||
show_help
|
||||
exit 1
|
||||
;;
|
||||
esac
|
||||
done
|
||||
|
||||
shift "$((OPTIND -1))"
|
||||
|
||||
# if less than one arguments supplied, display usage
|
||||
if [[ $# -ne 1 ]] ; then
|
||||
show_help
|
||||
exit 1
|
||||
fi
|
||||
|
||||
VM_NAME=$1
|
||||
|
||||
# check, if we have to start squid
|
||||
if ! killall -s 0 squid; then
|
||||
echo "starting squid."
|
||||
/usr/sbin/squid -f /etc/squid/squid-usermode.conf
|
||||
fi
|
||||
|
||||
# because virsh has problems with long pathnames, using diffent configdir
|
||||
export XDG_CONFIG_HOME="/tmp/${UID}/.config"
|
||||
|
||||
if ! virsh --connect="${QEMU}" list | grep "${VM_NAME}-clone"; then
|
||||
echo "VM not yet running."
|
||||
check_images
|
||||
if [[ "${NEWCLONE}" = 1 ]] || [[ ! -f "${VM_DIR}/${VM_NAME}-clone.qcow2" ]]; then
|
||||
create_clone "${VM_NAME}"
|
||||
fi
|
||||
# delete the old vm
|
||||
virsh --connect=qemu:///session undefine "${VM_NAME}-clone" || echo "${VM_NAME}-clone did not exist"
|
||||
# finally, create the new vm
|
||||
virsh --connect=qemu:///session define "${VM_DIR}/${VM_NAME}-clone.xml"
|
||||
#trap exit_script SIGHUP SIGINT SIGTERM
|
||||
[[ "${QEMU}" = 'qemu:///session' ]] && sudo /usr/local/bin/vm-virtiofsd "${VM_NAME}"
|
||||
virsh --connect="${QEMU}" start "${VM_NAME}-clone"
|
||||
fi
|
||||
echo "starting viewer"
|
||||
trap exit_script SIGHUP SIGINT SIGTERM
|
||||
virt-viewer --connect="${QEMU}" --full-screen "${VM_NAME}-clone"
|
||||
Loading…
Add table
Add a link
Reference in a new issue