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Running in Docker

Running headless browsers in Docker requires a lot of setup to do it right. But there's no need to worry about that, because we already created base images that you can freely use. We use them every day on the Apify Platform.

All images can be found in their GitHub repo and in our DockerHub.

Overview​

Browsers are pretty big, so we try to provide a wide variety of images to suit the specific needs. Here's a full list of our Docker images.

Versioning​

Each image is tagged with up to 2 version tags, depending on the type of the image. One for Node.js version and second for pre-installed web automation library version. If you use the image name without a version tag, you'll always get the latest available version.

We recommend always using at least the Node.js version tag in production Dockerfiles. It will ensure that a future update of Node.js will not break our automations.

Node.js versioning​

Our images are built with multiple Node.js versions to ensure backwards compatibility. Currently, Node.js versions 16 and 18 are supported (legacy versions still exist, see DockerHub). To select the preferred version, use the appropriate number as the image tag.

# Use Node.js 16
FROM apify/actor-node:16

Automation library versioning​

Images that include a pre-installed automation library, which means all images that include puppeteer or playwright in their name, are also tagged with the pre-installed version of the library. For example, apify/actor-node-puppeteer-chrome:16-13.7.0 comes with Node.js 16 and Puppeteer v13.7.0. If you try to install a different version of Puppeteer into this image, you may run into compatibility issues, because the Chromium version bundled with puppeteer will not match the version of Chromium that's pre-installed.

Similarly apify/actor-node-playwright-firefox:14-1.21.1 runs on Node.js 14 and is pre-installed with the Firefox version that comes with v1.21.1.

Installing apify/actor-node-puppeteer-chrome (without a tag) will install the latest available version of Node.js and puppeteer.

Pre-release tags​

We also build pre-release versions of the images to test the changes we make. Those are typically denoted by a beta suffix, but it can vary depending on our needs. If you need to try a pre-release version, you can do it like this:

# Without library version.
FROM apify/actor-node:16-beta
# With library version.
FROM apify/actor-node-playwright-chrome:16-1.10.0-beta

Best practices​

  • Node.js version tag should always be used.
  • The automation library version tag should be used for added security.
  • Asterisk * should be used as the automation library version in our package.json files.

It makes sure the pre-installed version of Puppeteer or Playwright is not re-installed on build. This is important, because those libraries are only guaranteed to work with specific versions of browsers, and those browsers come pre-installed in the image.

FROM apify/actor-node-playwright-chrome:16
{
    "dependencies": {
        "crawlee": "^3.0.0",
        "playwright": "*"
    }
}

Warning about image size​

Browsers are huge. If you don't need them all in your image, it's better to use a smaller image with only the one browser you need.

You should also be careful when installing new dependencies. Nothing prevents you from installing Playwright into theactor-node-puppeteer-chrome image, but the resulting image will be about 3 times larger and extremely slow to download and build.

When you use only what you need, you'll be rewarded with reasonable build and start times.

Apify Docker Images​

actor-node​

This is the smallest image we have based on Alpine Linux. It does not include any browsers, and it's therefore best used with CheerioCrawler. It benefits from lightning fast builds and container startups.

PuppeteerCrawler, PlaywrightCrawler and other browser based features will NOT work with this image.

FROM apify/actor-node:16

actor-node-puppeteer-chrome​

This image includes Puppeteer (Chromium) and the Chrome browser. It can be used with CheerioCrawler and PuppeteerCrawler, but NOT with PlaywrightCrawler.

The image supports XVFB by default, so you can run both headless and headful browsers with it.

FROM apify/actor-node-puppeteer-chrome:16

actor-node-playwright​

A very large and slow image that can run all Playwright browsers: Chromium, Chrome, Firefox, WebKit. Everything is installed. If you need to develop or test with multiple browsers, this is the image to choose, but in most cases, it's better to use the specialized images below.

FROM apify/actor-node-playwright:16

actor-node-playwright-chrome​

Similar to actor-node-puppeteer-chrome, but for Playwright. You can run CheerioCrawler and PlaywrightCrawler, but NOT PuppeteerCrawler.

It uses the PLAYWRIGHT_SKIP_BROWSER_DOWNLOAD environment variable to block installation of more browsers into the image to keep it small. If you want more browsers, either use the actor-node-playwright image override this env var.

The image supports XVFB by default, so we can run both headless and headful browsers with it.

FROM apify/actor-node-playwright-chrome:16

actor-node-playwright-firefox​

Same idea as actor-node-playwright-chrome, but with Firefox pre-installed.

FROM apify/actor-node-playwright-firefox:16

actor-node-playwright-webkit​

Same idea as actor-node-playwright-chrome, but with WebKit pre-installed.

FROM apify/actor-node-playwright-webkit:16

Example Dockerfile​

To use the above images, it's necessary to have a Dockerfile. You can either use this example, or bootstrap your projects with the Crawlee CLI which automatically adds the correct Dockerfile into our project folder.

# Specify the base Docker image. You can read more about
# the available images at https://crawlee.dev/docs/guides/docker-images
# You can also use any other image from Docker Hub.
FROM apify/actor-node:16

# Copy just package.json and package-lock.json
# to speed up the build using Docker layer cache.
COPY package*.json ./

# Install NPM packages, skip optional and development dependencies to
# keep the image small. Avoid logging too much and print the dependency
# tree for debugging
RUN npm --quiet set progress=false \
    && npm install --omit=dev --omit=optional \
    && echo "Installed NPM packages:" \
    && (npm list --omit=dev --all || true) \
    && echo "Node.js version:" \
    && node --version \
    && echo "NPM version:" \
    && npm --version

# Next, copy the remaining files and directories with the source code.
# Since we do this after NPM install, quick build will be really fast
# for most source file changes.
COPY . ./


# Run the image.
CMD npm start --silent