2025-06-26-13-33-49: Cronjob

roles/lmn_vm/files/sync-vm.sh

@@ -0,0 +1,158 @@
+#!/usr/bin/bash
+# Push VM-Disk-Image on server
+set -eu
+
+show_help() {
+    cat << EOF >&2
+Usage: $(basename "$0") [-d] [-a] [-t] [vmnames]"
+Images from vmnames-List will be synced from server. Default by torrent.
+Using flag -d VMs will be synced by rsync
+Using flag -a images from images.list and xml-directory will be synced from server.
+Using flag -t all torrents and xml-VM-Definitions will be synced
+EOF
+}
+
+download_image() {
+    rsync -av "rsync://server:/vmimages-download/${VM_NAME}.qcow2" \
+       /lmn/vm/
+    rsync -av "rsync://server:/vmimages-download/${VM_NAME}.xml" \
+       /lmn/vm/
+    rsync -av "rsync://server:/vmimages-download/${VM_NAME}.qcow2.torrent" \
+       /lmn/vm/
+    /usr/local/bin/vmimage-torrent restart "${VM_NAME}.qcow2"
+}
+
+torrent_image() {
+    if [[ ! -f "/lmn/vm/${VM_NAME}.qcow2.torrent" ]]; then
+      echo "No torrent-File found"
+      exit 1
+    fi
+    lockfile="/tmp/sync-vm-${VM_NAME}.lock"
+    if ! flock -n "$lockfile" echo "try to acquire lock"; then
+      echo torrent seems to be in process.
+      echo waiting for completion ...
+      flock -w 3600 "$lockfile" echo "...completed"
+      sleep 5
+    else
+      (
+        if ! flock -n 200; then
+	  echo "failed to acquire lock"
+	  echo "Bitte noch einmal starten."
+          echo "Beliebige Taste zum Beenden."
+	  read -n 1
+	  exit 1
+        fi
+        torrent="${VM_NAME}.qcow2.torrent"
+        session="${torrent//./_}"
+        if vmimage-torrent status | grep -qw ^"$session"; then
+          vmimage-torrent stop "${VM_NAME}.qcow2"
+        fi
+        cd /lmn/vm
+        ctorrent -e 0 "${VM_NAME}.qcow2.torrent"
+        /usr/local/bin/vmimage-torrent restart "${VM_NAME}.qcow2"
+        if ! flock -u 200; then
+	  echo failed to drop lock
+	  exit 1
+	fi
+      ) 200>"$lockfile"
+    fi
+}
+
+sync_all_images() {
+    rsync -av --files-from=/lmn/vm/images.list \
+	  rsync://server:/vmimages-download/ /lmn/vm/
+    rsync -av rsync://server:/vmimages-download/*.xml \
+	  /lmn/vm/
+}
+
+delete_old_qcows() {
+    cd /lmn/vm
+    for qcow2 in $(find . -maxdepth 1 -name "*.qcow2" -exec basename {} ';'); do
+	qcowsize=$(stat -c%s "${qcow2}")
+	if [[ -f "${qcow2}.size" ]] && [[ "${qcowsize}" != $(<"${qcow2}.size") ]]; then
+            torrent="${qcow2}.torrent"
+            session="${torrent//./_}"
+            if vmimage-torrent status | grep -qw ^"$session"; then
+                vmimage-torrent stop "${qcow2}"
+            fi
+            mv "${qcow2}" /tmp/
+	fi
+    done
+}
+
+sync_all_torrents() {
+    rsync -ai rsync://server:/vmimages-download/*.torrent /lmn/vm/
+    rsync -ai rsync://server:/vmimages-download/*.size /lmn/vm/
+    delete_old_qcows
+    rsync -ai rsync://server:/vmimages-download/*.xml /lmn/vm/
+    RSYNC_COMMAND=$(rsync -ai --delete --exclude=mimeinfo.cache rsync://server:/vmimages-download/desktop/ /usr/local/share/applications/ | sed '/ \.\//d')
+    if [[ $? -eq 0 ]] && [[ -n "${RSYNC_COMMAND}" ]]; then
+        echo "${RSYNC_COMMAND}"
+        update-desktop-database /usr/local/share/applications
+    fi
+}
+
+create_starter() {
+    if [[ ! -f "/usr/share/applications/VM_${VM_NAME}_starter.desktop" ]]; then 
+        cat << EOF >"/usr/share/applications/VM_${VM_NAME}_starter.desktop"
+[Desktop Entry]
+Version=1.0
+Type=Application
+Name=VMstart: ${VM_NAME}
+GenericName=VM starter ${VM_NAME}
+Comment=Start VM ${VM_NAME}
+#TryExec=konsole
+Exec=/usr/local/bin/run-vm.sh ${VM_NAME}
+Icon=clementine
+Categories=VM;Engineering;
+MimeType=image/vnd.dxf;
+Keywords=design;VM;diagrams;graphics
+Terminal=true
+EOF
+        update-desktop-database /usr/share/applications
+    fi
+}
+
+if [[ "$(id -nu)" != "lmnsynci" ]]; then
+    echo "$(basename "$0") must be run as lmnsynci user"
+    show_help
+    exit 1
+fi
+
+while getopts ':dat' OPTION; do
+    case "$OPTION" in
+        d)
+            DOWNLOAD=1
+            ;;
+        a)
+            sync_all_images
+            exit 0
+            ;;
+        t)
+            sync_all_torrents
+            exit 0
+            ;;
+        ?)
+            show_help
+            exit 1
+            ;;
+    esac
+done
+
+shift "$((OPTIND -1))"
+
+# if less than one arguments supplied, display usage
+if [[  $# -lt 1 ]]; then
+    show_help
+    exit 1
+fi
+
+for VM_NAME in "$@"; do
+  if [[ -v "DOWNLOAD" ]]; then
+    echo "Downloading $VM_NAME"
+    download_image
+  else
+    echo "Torrenting $VM_NAME"
+    torrent_image
+  fi
+done