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

docker-compose.yml

@@ -0,0 +1,12 @@
+version: "3"
+
+services:
+  ontime:
+    container_name: ontime
+    image: getontime/ontime:test-alpine
+    ports:
+      - "4001:4001/tcp"
+      - "127.0.0.1:8888:8888/udp"
+    volumes:
+      - "./ontime-db:/server/preloaded-db"
+    restart: unless-stopped