Unable to Pull Image - Missing signature key

[wwwizzarrdry]

/usr/bin/docker pull gotify/server:latest
Error response from daemon: missing signature key

[jmattheis]

What docker version are you using? According to this it's related to an outdated version: https://forums.docker.com/t/error-message-from-daemon-missing-signature-key/143124

[wwwizzarrdry]

Thanks to you and the other fine folks who pointed this out me. I was focused on a single tree and missed the forest. The forest being that docker has begun checking signature keys in the most recent builds which isn't handled by my outdated version.