diff --git a/push.sh b/push.sh
new file mode 100755
index 0000000..d379012
--- /dev/null
+++ b/push.sh
@@ -0,0 +1,20 @@
+#!/usr/bin/env sh
+
+if [ $# -eq 0 ]; then
+  echo "No alpine build versions supplied"
+  echo "example usage: ./push.sh latest 3.10 3.9"
+  exit 1
+fi
+
+# Authenticate to push images
+docker login
+
+# build, tag, and push alpine versions supplied as script arguments
+base_repo=boky/postfix
+for alpine_version in "$@"
+do
+  docker build -t "$base_repo":"$alpine_version" --build-arg=ALPINE_VERSION="$alpine_version" .
+  docker push "$base_repo":"$alpine_version"
+done
+
+