Testcontainers is an opensource library for providing lightweight, throwaway instances of common databases, Selenium web browsers, or anything else that can run in a Docker container.

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Sometimes, Docker’s internet connectivity won’t be working properly, which can lead to a number of obscure errors with your applications. In my experience, this is usually because DNS lookups are failing in Docker images.

«Docker MUST NOT run any databases in production, EVER.»

«The docker hype is not only a technological liability any more, it has evolved into a sociological problem as well.»

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