Allow options to be passed to the docker + document it (close #87)

Dockerfile

@@ -27,4 +27,4 @@ VOLUME /data
 WORKDIR /data
 
 EXPOSE 80
-CMD ["/usr/src/app/run.sh"]
+ENTRYPOINT ["/usr/src/app/run.sh"]

Dockerfile_light

@@ -9,4 +9,4 @@ VOLUME /data
 WORKDIR /data
 
 EXPOSE 80
-CMD ["node", "/usr/src/app/", "-p", "80"]
+ENTRYPOINT ["node", "/usr/src/app/", "-p", "80"]

docs/installation.rst

@@ -9,6 +9,11 @@ When running docker image, no special installation is needed -- the docker will
 
 Just run ``docker run -it -v $(pwd):/data -p 8080:80 klokantech/tileserver-gl``.
 
+Additional options (see :doc:`/usage`) can be passed to the TileServer GL by appending them to the end of this command. You can, for example, do the following:
+
+* ``docker run ... klokantech/tileserver-gl my-tiles.mbtiles`` -- explicitly specify which mbtiles to use (if you have more in the folder)
+* ``docker run ... klokantech/tileserver-gl --verbose`` -- to see the default config created automatically
+
 npm
 ===
 

run.sh

@@ -1,3 +1,3 @@
 #!/bin/bash
 cd /data
-xvfb-run -a -e /dev/stdout --server-args="-screen 0 1024x768x24" node /usr/src/app/ -p 80
+xvfb-run -a -e /dev/stdout --server-args="-screen 0 1024x768x24" node /usr/src/app/ -p 80 "$@"