Docker Appears to only Use TLSv1

docker build --pull appears to only connect via TLS v1 (verified via Wireshark) when connecting to a private docker repository (gitea). I’m unable to determine why this is. Unfortunately searching for docker tls turns up more results about configuring the docker socket.

docker pull of the same image works fine.

In addition, attempting to connect drone_docker_runner to the same machine uses only TLSv1.

The server in question is an Ubuntu 20.04 server (which disables TLS<1.2 by default).

I’m currently using Fedora 38, but had the same problem in Fedora 37. I have verified that I’m using the Default crypto-policy.

Does anyone have any other things I can try?