When I specify ports in a docker-compose.yml file, is it TCP or UDP? | ReadMeFeed

When I specify ports in a docker-compose.yml file, is it TCP or UDP?

Mathias Lykkegaard Lorenzen

Feb 4

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I know that I can specify the protocol of "ports" in the docker-compose.yml file, but I am unsure what the default protocol is, if no protocol is specified.

Is it TCP? Is it UDP? Both?

I haven't been able to find the answer anywhere (including in the Docker Compose file reference).

docker docker-compose

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Accepted answer · original discussion

CocoBagarre

Feb 4

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by default TCP is used, you can see it launching docker-compose ps

If you want to specify you should add /udp or /tcp like :

ports:
  - "80:80/udp"
  - "80:80/tcp"

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Mathias Lykkegaard LorenzenPermalink

Feb 4

And if I want both? Do I specify the same port twice with different protocols?