diff --git a/deploy/openhabian.sh b/deploy/openhabian.sh
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+#!/usr/bin/env sh
+
+# Deploy script to install keys to the openHAB keystore
+
+# This script attempts to restart the openHAB service upon completion.
+# In order for this to work, the user running acme.sh needs to be able
+# to execute the DEPLOY_OPENHABIAN_RESTART command
+# (default: sudo service openhab restart) without needing a password prompt.
+# To ensure this deployment runs properly ensure permissions are configured
+# correctly, or change the command variable as needed.
+
+# Configuration options:
+# DEPLOY_OPENHABIAN_KEYPASS :  The default should be appropriate here for most cases,
+#                              but change this to change the password used for the keystore.
+# DEPLOY_OPENHABIAN_KEYSTORE : The full path of the openHAB keystore file. This will
+#                              default to a path based on the $OPENHAB_USERDATA directory.
+#                              This should generate based on existing openHAB env vars.
+# DEPLOY_OPENHABIAN_RESTART :  The command used to restart openHAB
+
+openhabian_deploy() {
+
+    # Name parameters, load configs
+    _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"
+
+    _getdeployconf DEPLOY_OPENHABIAN_KEYSTORE
+    _getdeployconf DEPLOY_OPENHABIAN_KEYPASS
+    _getdeployconf DEPLOY_OPENHABIAN_RESTART
+
+    _debug2 DEPLOY_OPENHABIAN_KEYSTORE "$DEPLOY_OPENHABIAN_KEYSTORE"
+    _debug2 DEPLOY_OPENHABIAN_KEYPASS "$DEPLOY_OPENHABIAN_KEYPASS"
+    _debug2 DEPLOY_OPENHABIAN_RESTART "$DEPLOY_OPENHABIAN_RESTART"
+
+    # Define configurable options
+    _openhab_keystore="${DEPLOY_OPENHABIAN_KEYSTORE:-${OPENHAB_USERDATA}/etc/keystore}"
+    _openhab_keypass="${DEPLOY_OPENHABIAN_KEYPASS:-openhab}"
+    _default_restart="sudo service openhab restart"
+    _openhab_restart="${DEPLOY_OPENHABIAN_RESTART:-$_default_restart}"
+
+    _debug _openhab_keystore "$_openhab_keystore"
+    _debug _openhab_keypass "$_openhab_keypass"
+    _debug _openhab_restart "$_openhab_restart"
+
+    # Verify Dependencies
+    if ! _exists keytool; then
+        _err "keytool not found, please install keytool"
+        return 1
+    fi
+    if [ ! -w "$_openhab_keystore" ]; then
+        _err "The file $_openhab_keystore is not writable, please change the permission."
+        return 1
+    fi
+
+    # Take a backup of the old keystore
+    _debug "Storing a backup of the existing keystore at ${_openhab_keystore}.bak"
+    cp "${_openhab_keystore}" "${_openhab_keystore}.bak"
+
+    # Generate PKCS12 keystore
+    _new_pkcs12="$(_mktemp)"
+    # _toPkcs doesn't support -nodes param
+    if ${ACME_OPENSSL_BIN:-openssl} pkcs12 \
+        -export \
+        -inkey "$_ckey" \
+        -in "$_ccert" \
+        -certfile "$_cca" \
+        -name mykey \
+        -out "$_new_pkcs12" \
+        -nodes -passout "pass:$_openhab_keypass"; then
+        _debug "Successfully created pkcs keystore"
+    else
+        _err "Error generating pkcs12."
+        _err "Please re-run with --debug and report a bug."
+        rm "$_new_pkcs12"
+        return 1
+    fi
+
+    # Remove old cert from existing store
+    if keytool -delete \
+        -alias mykey \
+        -deststorepass "$_openhab_keypass" \
+        -keystore "$_openhab_keystore"; then
+        _info "Successfully deleted old key"
+    else
+        _err "Error deleting old key"
+        _err "Please re-run with --debug and report a bug."
+        rm "$_new_pkcs12"
+        return 1
+    fi
+
+    # Add new certificate to store
+    if keytool -importkeystore \
+        -srckeystore "$_new_pkcs12" \
+        -srcstoretype PKCS12 \
+        -srcstorepass "$_openhab_keypass" \
+        -alias mykey \
+        -destkeystore "$_openhab_keystore" \
+        -deststoretype jks \
+        -deststorepass "$_openhab_keypass" \
+        -destalias mykey; then
+        _info "Successfully imported new key"
+    else
+        _err "Failure when importing key"
+        _err "Please re-run with --debug and report a bug."
+        rm "$_new_pkcs12"
+        return 1
+    fi
+
+    # Reload openHAB service
+    if eval "$_openhab_restart"; then
+        _info "Restarted openhab"
+    else
+        _err "Failed to restart openHAB, please restart openHAB manually."
+        _err "The new key has been installed, but openHAB may not use it until restarted"
+        _err "To prevent this error, override the restart command with DEPLOY_OPENHABIAN_RESTART \
+            and ensure it can be called by the acme.sh user"
+        return 1
+    fi
+
+    _savedeployconf DEPLOY_OPENHABIAN_KEYSTORE "$DEPLOY_OPENHABIAN_KEYSTORE"
+    _savedeployconf DEPLOY_OPENHABIAN_KEYPASS "$DEPLOY_OPENHABIAN_KEYPASS"
+    _savedeployconf DEPLOY_OPENHABIAN_RESTART "$DEPLOY_OPENHABIAN_RESTART"
+
+    rm "$_new_pkcs12"
+}
+
+# Credits:
+# This solution was heavily informed by a few existing scripts:
+# - https://gist.github.com/jpmens/8029383
+# - https://github.com/matsahm/openhab_change_ssl/blob/bd46986581631319606ae4c594d4ed774a67cd39/openhab_change_ssl
+# Thank you!