![]() What if - instead of guessing at the problem, and hoping you'll magically find a solution - you can confidently make two containers talk to each other.īy the end of this article, you'll understand the difference between exposing a port and publishing a port. Getting two containers to talk to each other should be a simple task, and yet, as a newbie to the Docker ecosystem, this is harder than it seems.ĭo you have to use EXPOSE or -p? Or maybe both?īridges, interfaces, ports, tunnelling… Networking is hard. ![]() ![]() How good is your understanding of what the EXPOSE instruction does in a Dockerfile?ĭo you know the difference "expose" and "publish"?
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