new dockerfile things

docker/readme.md

@@ -0,0 +1,22 @@
+```sh
+# download latest gossa release
+docker build -t gossa -f download.Dockerfile .
+
+# ... or build gossa within a build container, needs to be ran within the sources, ../ from here
+docker build -t gossa -f docker/build.Dockerfile .
+
+# and to run it simply
+sudo docker run -v ~/LocalDirToShare:/shared -p 8001:8001 gossa
+```
+
+
+a fancy docker image using [Caddy](https://caddyserver.com/) is also provided. a simple config is embedded in the docker file, and shows how to use http basic authentication, and automatic TLS for hands-free https 🎉
+
+```sh
+# run with caddy, checkout the config in the dockerfile
+docker build -t gossa -f caddy.Dockerfile .
+
+# run with caddy
+sudo docker run -v ~/LocalDirToShare:/shared --net=host gossa
+```
+