In case you’re wondering why your registry auth isn’t working when doing Docker operations using the Docker Go SDK, even though the Docker CLI works: You might need to use the Docker CLI library to authenticate with the registry. Ran into this issue with ECR + a Docker config that uses the OSX Keychain credential helper.

See https://github.com/moby/moby/issues/34503 and https://github.com/moby/moby/issues/39377#issuecomment-1119914406.