DEBU[0176] Calling POST /v1.21/auth
INFO[0176] POST /v1.21/auth
DEBU[0176] hostDir: /etc/docker/certs.d/USER:PASSWD@docker-registry.myawesomedomainname.example:5000
DEBU[0176] pinging registry endpoint https://USER:PASSWD@docker-registry.myawesomedomainname.example:5000/v0/
DEBU[0176] attempting v2 ping for registry endpoint https://USER:PASSWD@docker-registry.myawesomedomainname.example:5000/v2/
DEBU[0176] attempting v2 login to registry endpoint https://USER:PASSWD@docker-registry.myawesomedomainname.example:5000/v2/
ERRO[0176] Handler for POST /v1.21/auth returned error: no successful auth challenge for https://USER:PASSWD@docker-registry.myawesomedomainname.example:5000/v2/ - errors: []
ERRO[0176] HTTP Error                                    err=no successful auth challenge for https://USER:PASSWD@docker-registry.myawesomedomainname.example:5000/v2/ - errors: [] statusCode=500