Add Foswiki.

Change-Id: Iae86c21d09d221f848bc263ade5fbe50704b8bf4
diff --git a/foswiki/Dockerfile b/foswiki/Dockerfile
new file mode 100644
index 0000000..6cc8387
--- /dev/null
+++ b/foswiki/Dockerfile
@@ -0,0 +1,5 @@
+FROM docker.io/timlegge/docker-foswiki:v1.0.8
+
+RUN apk add build-base gcc abuild binutils perl-app-cpanminus perl-dev
+RUN cpanm Crypt::JWT Crypt::Random
+RUN apk del --purge build-base gcc abuild binutils perl-app-cpanminus perl-dev