Add Docker support and change default listening address

* Add Dockerfile
* Add docker-compose.yml
* Set default host address to null to make expressjs listen on both ipv4 and ipv6

Dockerfile

@@ -0,0 +1,33 @@
+FROM node:lts-alpine
+
+RUN apk add --no-cache curl
+
+RUN mkdir -p /usr/src/app && \
+    chown node:node /usr/src/app
+
+USER node:node
+
+WORKDIR /usr/src/app
+
+COPY --chown=node:node . .
+
+RUN npm run build
+
+# uncomment dbms client packages here
+#RUN npm install pg@8.5.1 && \
+#    npm install aws-sdk@2.842.0 && \
+#    npm install memcached@2.2.2 && \
+#    npm install mongodb@3.6.4 && \
+#    npm install ioredis@4.22.0 && \
+#    npm install rethinkdbdash@2.3.31
+
+ENV PORT=7777
+
+EXPOSE ${PORT}
+STOPSIGNAL SIGINT
+ENTRYPOINT [ "node", "server.js" ]
+
+HEALTHCHECK --interval=30s --timeout=5s --start-period=5s \
+    --retries=1 CMD curl -sS -o /dev/null localhost:${PORT} || exit 1
+
+CMD [ "npm", "start" ]

docker-compose.yml

@@ -0,0 +1,21 @@
+services:
+  haste-server:
+    build:
+      context: .
+      dockerfile: Dockerfile
+    image: zneix/haste-server
+    container_name: haste-server
+    network_mode: "bridge"
+    volumes:
+      # Default place to put files, can be removed with other storage system
+      - ./data:/usr/src/app/data:rw
+
+      # Create config.js from the example config and make changes
+      - ./config.js:/usr/src/app/config.js:ro
+
+      # PostgreSQL unix socket connection for use with pg storage and postgres database on host
+      #- /var/run/postgresql:/var/run/postgresql:rw
+    ports:
+      - "127.0.0.1:7777:7777/tcp"
+      - "::1:7777:7777/tcp"
+    restart: unless-stopped

example.config.js

@@ -1,7 +1,8 @@
 module.exports = {
 	//address and port to which server will bind, host can also be a hostname
-	"host": "127.0.0.1",
-	"port": 7777,
+	//by default it will listen on all ipv4 and ipv6 addresses on port 7777
+	//"host": "127.0.0.1",
+	//"port": 7777,
 
 	//length of random characters in link that's generated on document save
 	"keyLength": 10,

server.js

@@ -21,7 +21,7 @@ const utils = new HasteUtils();
 	//load config and set some defaults
 	const config = require('./config');
 
-	config.host = process.env.HOST || config.host || '127.0.0.1';
+	config.host = process.env.HOST || config.host || null;
 	config.port = process.env.PORT || config.port || 7777;
 
 	//set up logger
@@ -117,6 +117,6 @@ const utils = new HasteUtils();
 		index: 'index.html'
 	}));
 
-	app.listen(config.port, config.host, () => winston.info(`listening on ${config.host}:${config.port}`));
+	app.listen(config.port, config.host, () => winston.info(`listening on ${(config.host === null ? '' : config.host + ':')}${config.port}`));
 
 })();