kubernetes/pkg/credentialprovider/secrets/secrets.go

// MakeDockerKeyring inspects the passedSecrets to see if they contain any DockerConfig secrets.  If they do,
// then a DockerKeyring is built based on every hit and unioned with the defaultKeyring.
// If they do not, then the default keyring is returned
func MakeDockerKeyring(passedSecrets []v1.Secret, defaultKeyring credentialprovider.DockerKeyring) (credentialprovider.DockerKeyring, error) { … }