fix(server):Add MONGO_URI from environment for docker deployment (#46) …

…Fixes #43

* Adding mongo uri from environment for docker deployment and external mongo db

* Update server/config/database.js

Committing suggestion

Co-Authored-By: KarimJedda <KarimJedda@users.noreply.github.com>

docs/quick-start.md

@@ -46,6 +46,8 @@ To connect with mongodb that runs in another docker container:
 docker network create omniboard-network
 # make sure that mongodb container is using the same docker network before running this command
 docker run -it --rm -p 9000:9000 --name omniboard --net=omniboard-network vivekratnavel/omniboard -m MONGODB_CONTAINER:27017:sacred
+# or use the MONGO_URI environment variable
+docker run -it --rm -p 9000:9000 --name omniboard -e MONGO_URI=<mongo_uri> --net=omniboard-network vivekratnavel/omniboard 
 ```
 
 Go to http://localhost:9000 to access omniboard. To debug, use `docker logs <OMNIBOARD_CONTAINER>`

server/config/database.js

@@ -23,6 +23,8 @@ if ('m' in argv) {
   // Parse mongodb connection url passed as an arg
   // Ex: --mu mongodb://user:pwd@host/sacred?authSource=admin
   mongodbURI = `${argv['mu']}`;
+} else if (process.env.MONGO_URI) {
+  mongodbURI = process.env.MONGO_URI;
 } else {
   mongodbURI = `${defaultURI}/${defaultDatabase}`;
 }