How can I set up parallel testing in Docker?

How can I set up parallel testing in Docker?

To set up parallel testing in Docker, you can use Docker Compose to define your services and run tests in parallel.

Can you give me an example of a Docker Compose file for this?

Sure! Here's a simple example:

version: '3'
services:
  test_service_1:
    image: your_test_image
    command: run_tests_1
  test_service_2:
    image: your_test_image
    command: run_tests_2

How do I run this Docker Compose file?

You can run it using the command docker-compose up --parallel to execute the tests in parallel.

What if I want to limit the number of parallel tests?

You can use the --scale option in Docker Compose to limit the number of instances for each service.