GetCreds returns credentials from environment variables.

NewCert returns an instance of `cert` struct with pre-populated variables.

NewConfig returns a new instance of the Configer interface.

NewMetrics returns metricer instance.

NewServer returns instance of the Server with populated data.

CertResponse represent a response when a request for certificates is made.

HttpRequestParameterProvider defines structure used to convert HTTP parameters into proxy.Service.

Response message returns to HTTP clients.

Certer defines the interface that must be implemented by any struct that deals with certificates.

Configer defines the interface that must be implemented by any struct that deals with proxy configuration.

Server handles requests.