WIP: initial version

```
docker build -t grafana
```

```
docker run -d -p <grafana ip>:80:80 -it -e SERVER_NAME=<grafana host> -e GRAPHITE_SERVER=<graphite server:port> -e ES_SERVER=<es server:port> grafana
```

Currently only works with graphite + elasticsearch. I didn't check ssl support yet, going to do that tomorrow.