fix docker file permissions so 777 is no longer needed

Dockerfile

@@ -18,13 +18,19 @@ RUN set -x \
         nasm \
         libpng-dev \
         python3 \
+        wget \
     && npm install --production \
     && apk del .build-dependencies
 
+# Some setup tools need to be kept
+RUN apk add --no-cache su-exec
+
 # Bundle app source
 COPY . .
 
-USER node
+# Add application user and setup proper volume permissions
+RUN adduser -s /bin/false node; exit 0
 
+# Start the application
 EXPOSE 8080
-CMD [ "node", "./src/www" ]
+CMD [ "./start-docker.sh" ]

start-docker.sh

@@ -0,0 +1,4 @@
+#!/bin/sh
+
+chown -R node:node /home/node
+su-exec node node ./src/www