diff --git a/deploy/strongswan.sh b/deploy/strongswan.sh
new file mode 100644
index 0000000..7323278
--- /dev/null
+++ b/deploy/strongswan.sh
@@ -0,0 +1,34 @@
+#!/usr/bin/env sh
+
+#Here is a sample custom api script.
+#This file name is "myapi.sh"
+#So, here must be a method   myapi_deploy()
+#Which will be called by acme.sh to deploy the cert
+#returns 0 means success, otherwise error.
+
+########  Public functions #####################
+
+#domain keyfile certfile cafile fullchain
+strongswan_deploy() {
+  _cdomain="$1"
+  _ckey="$2"
+  _ccert="$3"
+  _cca="$4"
+  _cfullchain="$5"
+
+  _debug _cdomain "$_cdomain"
+  _debug _ckey "$_ckey"
+  _debug _ccert "$_ccert"
+  _debug _cca "$_cca"
+  _debug _cfullchain "$_cfullchain"
+
+  cat "$_ckey" >"/etc/ipsec.d/private/$(basename "$_ckey")"
+  cat "$_ccert" >"/etc/ipsec.d/certs/$(basename "$_ccert")"
+  cat "$_cca" >"/etc/ipsec.d/cacerts/$(basename "$_cca")"
+  cat "$_cfullchain" >"/etc/ipsec.d/cacerts/$(basename "$_cfullchain")"
+
+  ipsec reload
+
+  return 0
+
+}