diff --git a/Dockerfile b/Dockerfile
index 84dda51..32916f9 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,7 +1,11 @@
 FROM registry.dege.au/leenooks/php:8.1-fpm-alpine-pgsql-server
 
-VOLUME [ "/var/cache/composer" ]
+VOLUME [ "/var/cache/composer", "/var/lib/zerotier-one" ]
 
+# Add Zerotier
+RUN apk add zerotier-one -X http://dl-cdn.alpinelinux.org/alpine/v3.17/community --no-cache
+
+COPY init-container /sbin/
 COPY . /var/www/html/
 
 RUN mkdir -p ${COMPOSER_HOME} && \
diff --git a/init-container b/init-container
new file mode 100755
index 0000000..d665974
--- /dev/null
+++ b/init-container
@@ -0,0 +1,6 @@
+#!/bin/sh
+
+if [ -n "${ZEROTIER_START}" -a -e /usr/sbin/zerotier-one ]; then
+        echo "* Starting ZeroTier"
+        /usr/sbin/zerotier-one -d
+fi