* add authn proxy docker login support
User could use the web hook token issued by k8s api server to login to harbor.
The username should add a specific prefix.
Signed-off-by: wang yan <wangyan@vmware.com>
* update code per review comments
Signed-off-by: wang yan <wangyan@vmware.com>
* Add UT for auth proxy modifier
Signed-off-by: wang yan <wangyan@vmware.com>
