Merge pull request #1 from Northcode/master

Add Docker support!

Dockerfile

@@ -0,0 +1,13 @@
+FROM node:latest
+
+RUN mkdir /app/
+
+ADD . /app/.
+
+RUN cd /app/ && npm install
+
+RUN mkdir /data
+
+WORKDIR /data/
+
+CMD ["node", "/app/bot.js"]

README.md

@@ -14,4 +14,37 @@ Rollux is a simple dice rolling bot for discord
 }
 ```
 3. Install node.js and npm, then run the following command: `npm install`
-4. Run it with `node bot.js`
+4. Run it with `node bot.js`
+
+# Running with docker
+
+1. Build docker image with a tag
+   Example: `docker build -t rollux .`
+
+2. Add authentication by either:
+   1. Mount `/data` directory in container with your auth.json file
+   2. Pass the environment variable `DISCORD_TOKEN` with your discord token
+
+## Example docker-compose file:
+
+For auth.json method:
+```
+version: '2'
+
+services:
+  rollux:
+    image: 'rollux'
+    volumes:
+      - ./data:/data
+```
+
+For environment variable:
+```
+version: '2'
+
+services:
+  rollux:
+    image: 'rollux'
+    environment:
+      - DISCORD_TOKEN={your token}
+```

bot.js

@@ -1,7 +1,8 @@
 var Discord = require('discord.io');
 var logger = require('winston');
-var auth = require('./auth.json');
+var fs = require('fs');
-var diceRoller = require('./diceRolling.js')
+var diceRoller = require('./diceRolling.js');
+
 
 logger.remove(logger.transports.Console);
 logger.add(new logger.transports.Console, {
@@ -9,6 +10,18 @@ logger.add(new logger.transports.Console, {
 });
 logger.level = 'debug';
 
+const get_auth = () => {
+    if (process.env.DISCORD_TOKEN != undefined) {
+	logger.info('using auth from environment variable');
+	return { token: process.env.DISCORD_TOKEN };
+    } else {
+	logger.info('using auth from auth.json file');
+	return JSON.parse(fs.readFileSync('./auth.json', 'utf8'));
+    }
+};
+
+var auth = get_auth();
+
 var bot = new Discord.Client({
     token: auth.token,
     autorun: true
@@ -26,17 +39,17 @@ bot.on('message', function (user, userID, channelID, message, evt) {
             var args = message.substring(1).split(' ');
             var cmd = args[0];
 
-            console.log(message)
+            console.log(message);
 
             switch (cmd) {
                 case 'hi':
-                    sendMessage(channelID, 'Hello, World!')
+                sendMessage(channelID, 'Hello, World!');
                 case 'roll':
                     if (/([+\-]?\d{0,}d\d{1,})([+\-*x/]\d{1,}){0,}/gi.test(message.substring(6).replace(/\s/g, ''))) {
                         sendMessage(
                             channelID,
                             message.substring(6) + ': ' + diceRoller.roll(message.substring(6))
-                        )
+                        );
                     } else {
                         sendMessage(channelID, "I don't recognize this: \""
                             + message
@@ -48,17 +61,17 @@ bot.on('message', function (user, userID, channelID, message, evt) {
                     break;
             }
         } catch (error) {
-            console.log(error)
+            console.log(error);
         }
     }
 });
 
 function sendMessage(client, message) {
     if (message.length > 2500) {
-        message = 'Response was to long. Sorry'
+        message = 'Response was to long. Sorry';
     }
     bot.sendMessage({
         to: client,
         message: message
-    })
+    });
 }