commit 0cf096ec05467e20844ee4fda43f6c8a2af98755
Author: Knut Ahlers <knut@ahlers.me>
Date:   Mon Oct 29 18:36:50 2018 +0100

    Initial version

diff --git a/Dockerfile b/Dockerfile
new file mode 100644
index 0000000..28547b5
--- /dev/null
+++ b/Dockerfile
@@ -0,0 +1,18 @@
+FROM alpine:3.8
+
+MAINTAINER Knut Ahlers <knut@ahlers.me>
+
+ENV KEYNAME=id_rsa
+
+SHELL ["/bin/sh", "-ex", "-c"]
+RUN apk --no-cache add openssh \
+ && adduser -h /home/mysql -S -D -u 100 mysql
+
+USER mysql
+
+VOLUME "/home/mysql/.ssh"
+EXPOSE 3306/tcp
+
+COPY run.sh /usr/local/bin
+
+ENTRYPOINT ["/usr/local/bin/run.sh"]
diff --git a/run.sh b/run.sh
new file mode 100755
index 0000000..f288642
--- /dev/null
+++ b/run.sh
@@ -0,0 +1,4 @@
+#!/bin/sh
+set -eux
+
+exec /usr/bin/ssh -N -L 0.0.0.0:3306:127.0.0.1:3306 -i /home/mysql/.ssh/${KEYNAME} "$@"