Docker (#146)

* docker: initial config

* docker: add entrypoint for headless run

* docker: resolve path from env variable

* docker: initial config

* docker: rename preloaded data directories

* docker: update README

* docker: prevent issue with port mappings

* docker: update README.md

* docker: add docker-compose

* docker: cleanup logs

* docker: add CI

* docker: cleanup unused

* docker: use static port in development

* refactor: isolate tasks

* docker: add demo db

* fix: download db resolves according to OS

* docker: config build

* fix: ensure db path exists

* fix: add object type to block

* docker: config build

* docker: config build

* docker: env is production

* docker: preload db

* fix: remove test dir

* docker: graceful shutdown node app

* docker: env is production

* docker: add docker-compose

* docker: remove unused mappings

* docker: version bump

README.md

@@ -78,6 +78,8 @@ More documentation available [here](https://cpvalente.gitbook.io/ontime/)
 - [x] Logging view
 - [x] Edit anywhere: run ontime in your local network and use any machine to reach the editor page (
   same as app)
+- [x] Multi platform (available on Windows, MacOS and Linux)
+- [x] [Headless run](#headless-run) (run server only, configure from a browser locally)
 
 ## Unopinionated
 
@@ -115,6 +117,29 @@ See [this repository](https://github.com/cpvalente/ontime-viewer-template) with
 how to get you started and read the docs about
 the [Websocket API](https://app.gitbook.com/s/-Mc0giSOToAhq0ROd0CR/control-and-feedback/websocket-api)
 
+### Headless run️
+You can self host and run ontime in a docker image, the run command should:
+- expose the necessary ports (listen in Dockerfile)
+- mount a local file to persist your data (in the example: ````$(pwd)/local-data````)
+- the image name __getontime/ontime__
+
+The docker image is in [available Docker Hub at getontime/ontime](https://hub.docker.com/r/getontime/ontime)
+```bash
+docker pull getontime/ontime
+```
+
+```bash
+# Port 4001 - ontime server port
+# Port 8888 - OSC input, bound to localhost IP Address 
+docker run -p 4001:4001 -p 127.0.0.1:8888:8888/udp --mount type=bind,source="$(pwd)/ontime-db",target=/server/preloaded-db getontime/ontime
+```
+
+or if running from the docker compose
+
+```bash
+docker-compose up
+```
+
 ## Roadmap
 
 ### Continued development
@@ -126,7 +151,6 @@ friendly order unless there is user demand to bump any of them.
 - [ ] Improvement with event component design
 - [ ] New playback mode
   for [cumulative time keeping](https://github.com/cpvalente/ontime/issues/100)
-- [ ] Headless version (run server only anywhere, configure from a browser locally)
 - [ ] Companion module
 - [ ] Lower Third Manager
 - [ ] Note only event