diff --git a/Dockerfile b/Dockerfile
index 9b0f471..80dc8a7 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,6 +1,7 @@
 FROM python:2-onbuild
 MAINTAINER Mitsuo Takaki <mitsuotakaki@gmail.com>
 
-VOLUME /usr/src/app/
+COPY config.yml /usr/src/app/config/
+VOLUME /usr/src/app/config/
 
-ENTRYPOINT ["python", "cachet_url_monitor/scheduler.py", "config.yml"]
+ENTRYPOINT ["python", "cachet_url_monitor/scheduler.py", "config/config.yml"]
diff --git a/README.md b/README.md
index f336d91..d65840b 100644
--- a/README.md
+++ b/README.md
@@ -59,4 +59,22 @@ To start the agent:
 
 ```
 $ python cachet_url_monitor/scheduler.py config.yml
-```
\ No newline at end of file
+```
+
+## Docker
+
+You can run the agent in docker, so you won't need to worry about installing python, virtualenv, or any other dependency into your OS. The `Dockerfile` and `docker-compose.yml` files are already checked in and it's ready to be used.
+
+To start the agent in a container using docker compose:
+
+```
+$ docker-compose build
+$ docker-compose up
+```
+
+Or pulling directly from [dockerhub](https://hub.docker.com/r/mtakaki/cachet-url-monitor/). You will need to create your own custom `config.yml` file and put it in a folder (`my_config`):
+
+```
+$ docker pull mtakaki/cachet-url-monitor:0.1
+$ docker run --rm -it -v my_config/:/usr/src/app/config/ mtakaki/cachet-url-monitor:0.1
+```