You should find Puppeteer executes successfully, provided proper Chrome flags are used. Chrome will write into /tmp instead.Īdd your JavaScript to your container with a COPY instruction. disable-dev-shm-usage – This flag is necessary to avoid running into issues with Docker’s default low shared memory space of 64MB.If you’re uncomfortable with this, you’ll need to manually configure working Chrome sandboxing, which is a more involved process. It’s vital you ensure your Docker containers are strongly isolated from your host. The downloadUrl is actually a GET request on your server that will execute Puppeteer on the server and return content with content-type application/pdf So what does this Puppeteer code look like How to use it To be able to actually download the PDF, you just need a few code lines. Using these flags could allow malicious web content to escape the browser process and compromise the host. no-sandbox and disable-setuid-sandbox – These disable Chrome’s sandboxing, a step which is required when running as the root user (the default in a Docker container).You can tap into this event and physically download the contents into a file. Setting this flag explicitly instructs Chrome not to try and use GPU-based rendering. This page downloads a csv by creating a comma delimited string and forcing the browser to download it by setting the data type like so let uri 'data:text/csv charsetutf-8,' + encodeURIComponent (content) window.open (uri, 'Some CSV') This on chrome opens a new tab. disable-gpu – The GPU isn’t usually available inside a Docker container, unless you’ve specially configured the host.Puppeteer.launch().then(async browser => ) Īwait page.waitForSelector('#genesis-content > article > header > h1') Īwait page.focus('#wpcf7-f97-p311-o1 > form > p:nth-child(2) > label > span > input')Īwait ('PuppeteerBot') Īwait page.focus('#wpcf7-f97-p311-o1 > form > p:nth-child(3) > label > span > input')Īwait page.focus('#wpcf7-f97-p311-o1 > form > p:nth-child(4) > label > span > textarea')Īwait page.keyboard. The first basic thing is to visit a website with Puppeteer.
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