diff --git a/check-lxc-snap-num.sh b/check-lxc-snap-num.sh
new file mode 100755
index 0000000..3e20b84
--- /dev/null
+++ b/check-lxc-snap-num.sh
@@ -0,0 +1,13 @@
+#!/bin/bash
+snapshotnum=3
+updatescript=$(dirname "$0")/update-lxc-container.sh
+echo $(date) "- Check if there're at least ${snapshotnum} lxc containers snapshot..."
+if [ $(lxc list type=container -c S --format csv | head -1) -lt ${snapshotnum} ]; then
+    echo $(date) "- Create VMs/containers snapshot and update containers..."
+    for vm in $(lxc list type=virtual-machine -c n --format csv); do
+        lxc snapshot ${vm}
+    done
+    ${updatescript}
+else
+    echo $(date) "- Do nothing."
+fi