How Do I Run Playwright Tests in Docker?

Why Use Docker for Playwright?

Docker packages your testing environment so students can run Playwright with consistent browser versions and dependencies. Playwright officially provides Docker images containing browsers and their required system dependencies. Its documentation recommends pinning the image version to match your project’s Playwright version.

Step-by-Step Setup

1. Create a Playwright project

Install Playwright and initialize your tests:

npm init playwright@latest

2. Create a Dockerfile

FROM mcr.microsoft.com/playwright:v1.63.0-noble

WORKDIR /app

COPY package*.json ./

RUN npm ci

COPY . .

CMD ["npx", "playwright", "test"]

This uses Playwright’s official image. Replace the version with the one matching your project.

3. Build and run

docker build -t my-playwright-tests .

docker run --rm --init --ipc=host my-playwright-tests

The --init flag helps prevent zombie processes, while --ipc=host is recommended for Chromium because insufficient shared memory can cause crashes.

What About CI/CD?

Docker makes it easier to run the same tests in Jenkins, GitHub Actions, or other CI systems. Playwright’s official CI examples include Jenkins pipelines using its Docker image.

Useful Statistics

Docker’s stats command provides live CPU, memory, network I/O, and process information for running containers. Students can use these metrics to understand resource usage and troubleshoot slow or unstable test runs.

Conclusion

For students learning Playwright Automation Testing Training in Hyderabad, Docker is a valuable skill for building reliable, repeatable automation environments. Testbugit Solutions can help Educational Students learn Playwright, Docker integration, CI/CD, and practical testing workflows through structured courses and hands-on projects. Why not start practicing Playwright tests in Docker and build your automation career?

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