Introduction to heredocs in Dockerfiles | DockerGuest post by Docker Community Member Justin Chadell. This post originally appeared here. As of a couple weeks ago, Docker’s BuildKit tool for building Dockerfiles now supports heredoc syntax! With these new improvements, we can do all sorts of things that were difficult before, like multiline RUNs without needing all those pesky backslashes at the end of each line, or the creation of small inline
