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delete old VM-images when running out of space

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This commit is contained in:
Raphael Dannecker 2024-03-10 10:00:26 +01:00
parent c99ec444f8
commit 30f24bb666
3 changed files with 74 additions and 16 deletions
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35
roles/lmn_vm/files/vm-sync
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@ -10,6 +10,7 @@ command:
get_file
get_image
delete_outdated_image
update_usage_information
EOF
}
@ -18,6 +19,22 @@ get_torrent() {
echo "No torrent-File found"
exit 1
fi
cd "${VM_SYSDIR}"
echo Size needed: $(get_image_size "${VM_NAME}.qcow2.torrent")
echo Size available: $(df --block-size=1 --output=avail "${VM_SYSDIR}" | sed 1d)
while [[ $(get_image_size "${VM_NAME}.qcow2.torrent") -gt $(df --block-size=1 --output=avail "${VM_SYSDIR}" | sed 1d) ]]; do
echo "Not enough space to get ${VM_NAME}."
FILENAME="$(head -1 vm_usage_information.txt)"
if [[ -z $FILENAME ]]; then
echo "No more old VM-files to delete. Unable to get ${VM_NAME}. Please contact system administrator."
exit 1
fi
echo "Deleting $FILENAME"
sudo vm-aria2 stop "$(basename "${FILENAME}" .qcow2)"
rm -f "${FILENAME}"
[[ -f "${VM_DIR}/${FILENAME}" ]] && rm -f "${VM_DIR}/${FILENAME}"
sed -i -e 1d vm_usage_information.txt
done
lockfile="/tmp/sync-vm-${VM_NAME}.lock"
if ! flock -n "$lockfile" echo "try to acquire lock"; then
echo torrent seems to be in process.
@ -37,7 +54,7 @@ get_torrent() {
sudo vm-aria2 stop "${VM_NAME}"
cd "${VM_SYSDIR}"
# get image
aria2c --seed-time=0 --dht-file-path=$DHTDAT \
aria2c --seed-time=0 --dht-file-path="$DHTDAT" \
--dht-entry-point="${SEEDBOX_HOST}:${SEEDBOX_PORT}" \
"${VM_SYSDIR}/${VM_NAME}.qcow2.torrent"
# and seed
@ -67,9 +84,18 @@ delete_outdated_image() {
fi
}
update_usage_information() {
cd "${VM_SYSDIR}"
[[ -f vm_usage_information.txt ]] || ls -tr *.qcow2 > vm_usage_information.txt || touch vm_usage_information.txt
FILENAME="$(basename $FILENAME)"
echo sed -i "/${FILENAME}/d" vm_usage_information.txt
sed -i "/${FILENAME}/d" vm_usage_information.txt
echo "${FILENAME}" >> vm_usage_information.txt
}
get_file() {
cd "${VM_SYSDIR}"
curl --fail --noproxy ${SEEDBOX_HOST} -o "${FILENAME}" \
curl --fail --noproxy "${SEEDBOX_HOST}" -o "${FILENAME}" \
"http://${SEEDBOX_HOST}/aria2/${FILENAME}" || echo "File not found on seedbox"
}
@ -130,6 +156,11 @@ case "$command" in
delete_outdated_image
done
;;
update_usage_information)
for FILENAME in "$@"; do
update_usage_information
done
;;
*)
show_help
exit 1