Use Debian Jessie directly as base image

.dockerignore

@@ -6,5 +6,7 @@
 dev.js
 npm-debug.log
 
+bin/
+test/
 src/
 node_modules/

Dockerfile

@@ -1,22 +1,34 @@
-FROM node:slim
+FROM buildpack-deps:jessie-curl
 
 MAINTAINER Mihkel Sokk <[email protected]>
 
-ENV RENDERER_ACCESS_KEY=changeme CONCURRENCY=1 WINDOW_WIDTH=1024 WINDOW_HEIGHT=768 NODE_ENV=production
+ENV RENDERER_ACCESS_KEY=changeme CONCURRENCY=1 WINDOW_WIDTH=1024 WINDOW_HEIGHT=768 NODE_ENV=production \
+    ELECTRON_VERSION=0.36.7 ELECTRON_ENABLE_STACK_DUMPING=true ELECTRON_ENABLE_LOGGING=true
 
 # Add subpixel hinting
 COPY .fonts.conf /root/.fonts.conf
 
 COPY . /app
 WORKDIR /app
 
-# Install the packages needed to run Electron
-RUN npm install --production && \
-    sed -i 's/main/main contrib/g' /etc/apt/sources.list && \
-    apt-get update && apt-get upgrade -y && apt-get install -y xvfb \
-      libgtk2.0-0 ttf-mscorefonts-installer libnotify4 libgconf2-4 libnss3 dbus-x11 && \
-    apt-get clean && rm -rf /var/lib/apt/lists/*
+    # Install the packages needed to run Electron
+RUN sed -i 's/main/main contrib/g' /etc/apt/sources.list && \
+    curl -sL https://deb.nodesource.com/setup_5.x | bash - && \
+
+    apt-get update && apt-get upgrade -y && \
+    apt-get install -y nodejs unzip xvfb libgtk2.0-0 ttf-mscorefonts-installer libnotify4 libgconf2-4 libnss3 dbus-x11 && \
+
+    # Get Electron
+    wget "https://github.com/atom/electron/releases/download/v${ELECTRON_VERSION}/electron-v${ELECTRON_VERSION}-linux-x64.zip" -O electron.zip && \
+    unzip electron.zip && rm electron.zip && \
+
+    # Install dependencies without electron-prebuilt
+    sed -i '/electron-prebuilt/d' ./package.json && \
+    npm install --production && \
+
+    # Cleanup
+    apt-get remove -y unzip nodejs && apt-get clean && rm -rf /var/lib/apt/lists/*
 
 EXPOSE 3000
 
-CMD xvfb-run --server-args="-screen 0 ${WINDOW_WIDTH}x${WINDOW_HEIGHT}x24" npm start
+CMD xvfb-run --server-args="-screen 0 ${WINDOW_WIDTH}x${WINDOW_HEIGHT}x24" ./electron --disable-gpu lib/server.js

README.md

@@ -9,7 +9,7 @@ Simple PDF/PNG/JPEG render service, accepts webpage URL and returns the resource
 
 ## Docker usage
 
-Based on official [Node.js Jessie](https://hub.docker.com/_/node/) image, uses latest [electron](https://github.com/atom/electron).
+Based on official [Debian Jessie](https://hub.docker.com/_/debian/) image, uses latest [electron](https://github.com/atom/electron).
 
 
 1. `docker run -t -e RENDERER_ACCESS_KEY=secret -p 3000:3000 msokk/electron-render-service`

bin/electron-render-service.js

@@ -5,6 +5,6 @@ const electron = require('electron-prebuilt');
 const proc = require('child_process');
 
 const args = path.join(__dirname, '../lib/server.js');
-const child = proc.spawn(electron, [args], { stdio: 'inherit' });
+const child = proc.spawn(electron, ['--disable-gpu', args], { stdio: 'inherit' });
 
 child.on('close', code => process.exit(code));

package.json

@@ -1,13 +1,12 @@
 {
   "name": "electron-render-service",
-  "version": "0.4.0",
+  "version": "0.4.1",
   "description": "Microservice for rendering PDF/PNG/JPEG from HTML with Electron",
   "bin": {
     "electron-render-service": "./bin/electron-render-service.js"
   },
   "scripts": {
-    "start": "electron lib/server.js",
-    "dev": "electron dev.js",
+    "start": "electron dev.js",
     "build": "babel src -d lib",
     "lint": "eslint src",
     "test": "mocha --compilers js:babel-register"