Login Fail
dockerClient refuses the connection with “bad username or password”
The signature of the function you are calling to login is:
def login(self, username, password=None, email=None, registry=None,
reauth=False, insecure_registry=False, dockercfg_path=None):
Note the position of the registry parameter. It is fourth in the list. So your call of:
regClient = dockerClient.login(username, password, registry)
Is passing your registry as the email since email is the third parameter. Suggest you change to something like:
regClient = dockerClient.login(username, password, registry=registry)
Python or shell?
Is the the right direction or should I be trying to implement this entirely with shell scripts? (Python has been especially valuable for the boto calls to describe what is in each registry)
Go with the Python.