improve usability with Docker

Author: danthe1st

Dockerfile

@@ -3,10 +3,12 @@ WORKDIR /app
 
 COPY ["package.json", "./"]
 COPY ["gulpfile.js", "./"]
-COPY ["app", "./app"]
 
 RUN npm install gulp -g
 RUN npm install
+
+COPY ["app", "./app"]
+
 RUN gulp build
 
-CMD ["gulp", "serve"]
+CMD ["gulp", "serve"]

README.md

@@ -86,11 +86,15 @@ A browser should launch viewing [https://localhost:3000](https://localhost:3000)
 
 ### Option 2: Use Docker
 
-1. docker build --tag devjava .
-1. docker run --publish 3000:3000 devjava
+1. `docker build --tag devjava .`
+1. `docker run --publish 3000:3000 --rm devjava`
 
 You should then be able to open a browser and visit [https://localhost:3000](https://localhost:3000)
 
+In order to automatically update the site when editing an article, it is possible to mount a volume:
+
+1. `docker build --tag devjava .`
+1. `docker run --publish 3000:3000 --rm -v $PWD/app:/app/app devjava`
 
 ## Working with Content