prerender

Dockerfile

@@ -1,20 +1,23 @@
-FROM node:latest
-LABEL maintainer="Freeletics GmbH <operations@freeletics.com>"
-
-RUN wget -q -O - https://dl-ssl.google.com/linux/linux_signing_key.pub | apt-key add - \
-  && sh -c 'echo "deb http://dl.google.com/linux/chrome/deb/ stable main" >> /etc/apt/sources.list.d/google.list' \
-  && apt-get update -y \
-  && apt-get install -y libdrm2 libgbm1 libu2f-udev \
-  && apt-get install google-chrome-stable -y \
-  && apt-get clean \
-  && rm -rf /tmp/* /var/lib/apt/lists/*
-
-WORKDIR /home/chrome
-COPY . /home/chrome
-RUN  npm install
-RUN npm install prerender-memory-cache --save
+FROM node:18-alpine
+
+RUN apk update
+RUN apk add --update-cache curl wget nano chromium
+
+ENV CACHE_MAXSIZE=1000
+ENV CACHE_TTL=6000
+
+ENV CHROME_BIN=/usr/bin/chromium-browser
+ENV CHROME_PATH=/usr/lib/chromium/
 
-EXPOSE 3000
 
-CMD [ "node", "server.js" ]
+USER node
+WORKDIR "/home/node"
+
+COPY ./package.json .
+COPY ./server.js .
+
+RUN npm install --no-package-lock
+
+EXPOSE 3000
 
+CMD ["node", "server.js"]

package.json

@@ -14,7 +14,8 @@
     "compression": "~1.7.3",
     "express": "~4.16.3",
     "he": "~1.1.1",
-    "valid-url": "~1.0.9"
+    "valid-url": "~1.0.9",
+    "prerender-memory-cache": "1.0.2"
   },
   "devDependencies": {
     "mocha": "^5.2.0",

server.js

@@ -2,12 +2,13 @@
 var prerender = require('./lib');
 
 var server = prerender({
+    chromeLocation: '/usr/bin/chromium-browser',
     logRequests: true,
-    chromeFlags: ['--disable-web-security', '--no-sandbox', '--headless', '--disable-gpu', '--remote-debugging-port=9222', '--hide-scrollbars']
+    chromeFlags: ['--disable-web-security', '--no-sandbox', '--headless', '--disable-gpu', '--remote-debugging-port=9222', '--hide-scrollbars', '--disable-dev-shm-usage']
 });
 
 server.use(prerender.sendPrerenderHeader());
-// server.use(prerender.blockResources());
+server.use(prerender.blockResources());
 server.use(prerender.removeScriptTags());
 server.use(prerender.httpHeaders());
 server.use(require('prerender-memory-cache'))