diff --git a/Dockerfile b/Dockerfile
index 30800bf8..32d9bf66 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -2,3 +2,5 @@ FROM ocaml/opam
 RUN opam pin add -n ocl-reporter https://github.com/ocamllabs/ocl-reporter.git
 RUN opam depext -ui ocl-reporter
 RUN opam install -j 2 -y -v ocl-reporter
+RUN mkdir /home/opam/src
+CMD ["sh","-c","ocl-reporter && make www"]
diff --git a/README.md b/README.md
index e5854697..b08b5324 100644
--- a/README.md
+++ b/README.md
@@ -15,3 +15,10 @@ more general purpose reporting tool for other projects too.
 * A cron job runs every hour on `cron-serv0.cl.cam.ac.uk` to sync the
   contents of `pages/` with the live directory.  That server doesnt
   run any code, so it just runs the `make cron` target to rsync files.
+
+## Docker build
+
+```
+docker build -t ocl-reporter .
+docker run -v `pwd`:/home/opam/src
+```