Adding final ESXI deployment code

ESXi/Packer/_common/motd.sh

@@ -0,0 +1,21 @@
+#!/bin/sh -eux
+
+bento='
+This system is built by the Bento project by Chef Software
+More information can be found at https://github.com/chef/bento'
+
+if [ -d /etc/update-motd.d ]; then
+    MOTD_CONFIG='/etc/update-motd.d/99-bento'
+
+    cat >> "$MOTD_CONFIG" <<BENTO
+#!/bin/sh
+
+cat <<'EOF'
+$bento
+EOF
+BENTO
+
+    chmod 0755 "$MOTD_CONFIG"
+else
+    echo "$bento" >> /etc/motd
+fi