Explore the world of maintainable integration testing using Docker in this 40-minute conference talk. Dive into the challenges of writing and maintaining integration tests, and discover how Testcontainer, an open-source community project, addresses these issues across multiple programming languages. Learn from Gianluca Arbezzano, maintainer of the Golang implementation, as he demonstrates how to leverage the Docker API to create test-friendly libraries for your test cases. Gain insights into writing low-overhead unit tests in Go, understand the complexities of application testing, and explore topics such as Docker-in-Docker, Docker community contributions, and practical implementations with Elasticsearch. Through a live demo and Q&A session, acquire valuable knowledge to enhance your integration testing practices and improve overall application reliability.