Docker + Cypress

Precondition

Install Docker Desktop: https://www.docker.com/products/docker-desktop/

Example setup:

Core Idea

• Image = instructions (what to install + what to run)

• Container = running version of image

  
  

Flow:

Cypress Docker images: https://github.com/cypress-io/cypress-docker-images

Dockerfile

.dockerignore

package.json

docker-compose.yml

Commands (minimal reference)

Build image

Run container

Using docker-compose (recommended)

When to Rebuild

Rebuild if you change:

• Dockerfile

• package.json / dependencies

• Node or Cypress version

Force Clean Rebuild

Use when something looks wrong:

Important Notes

• Docker is isolated → files inside container are not visible by default

• Use volumes in docker-compose to access reports

• Containers are temporary → recreated on each run

• Always clean reports before running tests