diff --git a/tools/keytool/Dockerfile b/tools/keytool/Dockerfile
new file mode 100644
index 0000000..6b243c9
--- /dev/null
+++ b/tools/keytool/Dockerfile
@@ -0,0 +1,7 @@
+FROM alpine:3.17
+
+RUN apk update && \
+    apk add openjdk17-jre && \
+    apk add openssl
+
+RUN rm -rf /var/cache/apk/*