[Bug]: Incorrect server URL in RegistryAuthLocator#lookupAuthConfig when a credential helper doesn’t include the server URL in its response

[eager-signal]

Module

Core

Testcontainers version

1.20.0

Using the latest Testcontainers version?

Yes

Host OS

Linux, macOS

Host Arch

x86, ARM

Docker version

Client: Docker Engine - Community
 Version:           20.10.17
 API version:       1.41
 Go version:        go1.18.3
 Git commit:        100c70180f
 Built:             Mon Jun  6 21:36:39 2022
 OS/Arch:           darwin/arm64
 Context:           default
 Experimental:      true

What happened?

Some credential helpers (like docker-credential-ecr-login) return the server URL for get, while others (like docker-credential-gcloud) don’t. For these helpers, the resulting AuthConfig contains the value of com.github.dockerjava.api.model.AuthConfig.DEFAULT_SERVER_ADDRESS.

We’d expect the RegistryAuthLocator to fall back to the server URL from the query, just like the logic in the first-party credential helper tool.

Relevant log output

No response

Additional Information

No response