diff options
Diffstat (limited to 'core/modules/qemu/data/opt/openslx/vmchooser/plugins/qemukvm')
| -rw-r--r-- | core/modules/qemu/data/opt/openslx/vmchooser/plugins/qemukvm/includes/create-rw-diskimage.inc | 68 | ||||
| -rw-r--r-- | core/modules/qemu/data/opt/openslx/vmchooser/plugins/qemukvm/run-virt.include | 24 |
2 files changed, 90 insertions, 2 deletions
diff --git a/core/modules/qemu/data/opt/openslx/vmchooser/plugins/qemukvm/includes/create-rw-diskimage.inc b/core/modules/qemu/data/opt/openslx/vmchooser/plugins/qemukvm/includes/create-rw-diskimage.inc new file mode 100644 index 00000000..eb9030fa --- /dev/null +++ b/core/modules/qemu/data/opt/openslx/vmchooser/plugins/qemukvm/includes/create-rw-diskimage.inc @@ -0,0 +1,68 @@ +# ----------------------------------------------------------------------------- +# +# Copyright (c) 2009..2021 bwLehrpool-Projektteam +# +# This program/file is free software distributed under the GPL version 2. +# See https://www.gnu.org/licenses/old-licenses/gpl-2.0-standalone.html +# +# If you have any feedback please consult https://bwlehrpool.de and +# send your feedback to support@bwlehrpool.de. +# +# General information about bwLehrpool can be found at https://bwlehrpool.de +# +# ----------------------------------------------------------------------------- +# Utils and functions to parse Linux kernel command line options +# ----------------------------------------------------------------------------- + +# +# Return : +function create_rw_diskimage() { + # writelog "Creating rw image for qemu to safe and upload the snapshot later" + + # Register upload function to trigger before the cleanup deletes the tmp image snapshot + add_cleanup upload_qemu_rw + + # If the edit checkbox is checked the environment variable VMCHOOSER_ADMIN_MODE is TRUE + # ALLOW_EDIT=${VMCHOOSER_ADMIN_MODE} +} + +# Helper to safe and upload the image before the cleanup deletes everything +upload_qemu_rw() { + + # writelog "Calling scp task trigger on SAT" + # SERVERIP=$SLX_PXE_SERVER_IP + # Call slx-admin api to trigger taskmanager ScpSnapshot task with all the info needed + # LECTUREID=$IMGUUID + # CLIENTIP=$SLX_PXE_CLIENT_IP + # curl "http://$SERVERIP/slx-admin/api.php?do=remoteaccess&action=scp&lectureid=$LECTUREID&clientip=$CLIENTIP" + # Image will be deleted by SAT via SSH after finished downloading + + + # LECTUREID=$IMGUUID + # CLIENTIP=$SLX_PXE_CLIENT_IP + SERVERIP=$SLX_PXE_SERVER_IP + SESSIONID=$(cat /var/lib/lightdm/editsession.id) + + # Open firefox where the user can either safe or cancel + # Prepare firefox to not start the privacy "first launch" Page + firefox --CreateProfile progress + FFPROFILE=$(realpath ~/.mozilla/firefox/*.progress) + echo 'user_pref("toolkit.telemetry.reportingpolicy.firstRun", false);' >> $FFPROFILE/user.js + + # Start firefox and wait for the process + firefox --kiosk http://$SERVERIP:5000/progress/$SESSIONID -P progress & + FFPID="$!" + writelog "FF PID IS: $FFPID" + writelog "Waiting for firefox to exit" + wait $! + writelog "Firefox exited" + + # At this point the snapshot was either downloaded by the sat or the edit session was cancelled and can be deleted + rm -rf /tmp/upload + + # No permission to delete this file + # rm -f /var/lib/lightdm/editsession.id + # Remove the /var/lib/lightdm/edit.desktop that the slxgreeter created for autostart-editmode-login + # rm /var/lib/lightdm/edit.desktop +} + diff --git a/core/modules/qemu/data/opt/openslx/vmchooser/plugins/qemukvm/run-virt.include b/core/modules/qemu/data/opt/openslx/vmchooser/plugins/qemukvm/run-virt.include index fd251f04..893835e7 100644 --- a/core/modules/qemu/data/opt/openslx/vmchooser/plugins/qemukvm/run-virt.include +++ b/core/modules/qemu/data/opt/openslx/vmchooser/plugins/qemukvm/run-virt.include @@ -29,10 +29,30 @@ run_plugin() { $(safesource "${QEMU_INCLUDE_DIR}/passthrough-pci.inc") # include mediated device passthrough utils and functions $(safesource "${QEMU_INCLUDE_DIR}/passthrough-mdev.inc") + # include function for creating the rw qcow2 image + $(safesource "${QEMU_INCLUDE_DIR}/create-rw-diskimage.inc") - # setup RW image access for operation local vm_diskfile - if notempty VM_DISKFILE_RO; then + # If admin mode checkbox is set in the vmchooser, create the rw disk for the snapshot + if [ "${VMCHOOSER_ADMIN_MODE}" = TRUE ]; then + # Create tmp dir that survives cleanup + mkdir /tmp/upload + + # Activate cleanup function for uploading + create_rw_diskimage + + # Create snapshot file in upload dir that doesn't get deleted on cleanup + if [ -f /var/lib/lightdm/editsession.id ]; then + EDITID=$(cat /var/lib/lightdm/editsession.id) + vm_diskfile="/tmp/upload/$EDITID.qcow2" + else + writelog "No editid was found at /var/lib/lightdm/editsession.id, using IMGUUID as fallback" + vm_diskfile="/tmp/upload/$IMGUUID.qcow2" + fi + local vm_diskfile_type="$(qemu-img info --output=json ${VM_DISKFILE_RO} | jq -r '.format')" + qemu-img create -F "${vm_diskfile_type}" -b "${VM_DISKFILE_RO}" -f qcow2 "${vm_diskfile}" + # setup RW image access for operation + elif notempty VM_DISKFILE_RO; then # create copy-on-write layer for readonly image vm_diskfile="${TMPDIR}/$(basename ${VM_DISKFILE_RO}).cow.qcow2" local vm_diskfile_type="$(qemu-img info --output=json ${VM_DISKFILE_RO} | jq -r '.format')" |