daemon does not connect when server is behind self signed certificate

[Petbotson]

Is your feature request related to a problem? Please describe.
I am running Netvisor Server behind a Traefik instance with a certificate provided by my own internal CA. The Docker Daemon does not trust this certificate and fails to connect to the server.

Describe the solution you'd like
The possibility to add a environment variable to allow the connection to untrusted certificates.

Here is the error message from the daemon logs

netvisor-daemon  | Error: error sending request for url (https://netvisor.domain.com/api/daemons/register)
netvisor-daemon  | 
netvisor-daemon  | Caused by:
netvisor-daemon  |     0: client error (Connect)
netvisor-daemon  |     1: invalid peer certificate: UnknownIssuer

[zkutasi]

I second this. I have a Kubernetes cluster and a bunch of docker hosts, and I wanted to deploy NetVisor into the cluster, with self-signed certs over HTTPS. I could not find how to add the cert to the truststore, or switch off client-side validation.

[mayanayza]

There's a PR open for this, just waiting for the contributor to make an update from my latest comment

#123