Added entrypoint (docker)

Dockerfile

@@ -1,8 +1,8 @@
 FROM node:alpine
 RUN mkdir -p /usr/src/app/public
-VOLUME /usr/src/app/public
 WORKDIR /usr/src/app
 COPY . /usr/src/app
 RUN npm install
 EXPOSE 8080
-CMD [ "npm", "start" ]
+ENTRYPOINT [ "docker-entrypoint.sh" ]
+CMD [ "npm", "start"]

docker-entrypoint.sh

@@ -0,0 +1,9 @@
+#!/bin/bash
+set -e
+
+if [ ! -e '/usr/src/app/external-public/index.html' ]; then
+	cp -R /usr/src/app/public /usr/src/app/external-public
+	chown -R www-data /usr/src/app/external-public
+fi
+
+exec "$@"

package.json

@@ -1,6 +1,6 @@
 {
   "name" : "cryptalk",
-  "version" : "1.1.8",
+  "version" : "1.1.9",
   "description" : "Encrypted HTML5/Node.JS instant chat",
   "main" : "server.js",
   "subdomain": "cryptalk",