basic process backup working

lxc-backup.sh

@@ -1,27 +1,64 @@
 #!/usr/bin/env bash
 
-lxc() {
-	_LXC="${TARGET:-lxc}"
-	command $_LXC "$@"
-}
-
-lxc_list() {
-	lxc list -c n -f csv,noheader "$@"
-}
-
-usage() { echo "Usage: ${0##*/} [-l vm1,vm2,...]"; exit 1; }
-
 main() {
   while getopts ":l:" opt; do
     case "${opt}" in
       l)
-        IFS="," read -r -a LIMIT <<< "$OPTARG"
+        unset VM_FILTER
+        IFS="," read -r -a VM_FILTER <<< "$OPTARG"
         ;;
       *)
         usage
         ;;
     esac
   done
+
+  local backup_location="/spool/backups"
+
+  if [[ "${#VM_FILTER[*]}" -gt 0 ]]; then
+    backup_vms "$backup_location" "${VM_FILTER[@]}"
+  else
+    backup_vms "$backup_location"
+  fi
+}
+
+lxc() {
+	local lxc_cmd="${TARGET:-lxc}"
+	command "$lxc_cmd" "$@"
+}
+
+list_vms() {
+	lxc list -c n -f csv,noheader
+}
+
+usage() { echo "Usage: ${0##*/} [-l vm1,vm2,...]"; exit 1; }
+
+backup_vms() {
+  local backup_location="$1"; shift
+  local vms=("$@")
+
+  # when no argument use list of all VMs
+  if ((${#vms[@]} == 0)); then
+    mapfile -t vms < <(list_vms)
+  fi
+
+  for vm in "${vms[@]}"; do
+    [[ -n $vm ]] || continue
+    start_backup "$vm" "$backup_location"
+  done
+}
+
+start_backup() {
+  local vm=$1
+  local backup_base="$2"
+  local destination="${backup_base}/${vm}"
+  echo "$vm -> $destination"
+
+  # Check destination base exists
+  # Check VM folder exists
+  # Check if archive already exists
+  echo "lxc export "$vm" "$destinationi/${vm}_$(date +"%Y-%m-%d_%H-%M-%S").tar.gz""
+  lxc export "$vm" "$destinationi/${vm}_$(date +"%Y-%m-%d_%H-%M-%S").tar.gz"
 }
 
 main "$@"