Add --insecure-tls flag to disable SSL cert verification

Signed-off-by: Sam Lucidi <slucidi@redhat.com>

internal/backend/http_transport.go

@@ -22,6 +22,9 @@ type TransportOptions struct {
 
 	// contains the name of a file containing the TLS client certificate and private key in PEM format
 	TLSClientCertKeyFilename string
+
+	// Skip TLS certificate verification
+	InsecureTLS bool
 }
 
 // readPEMCertKey reads a file and returns the PEM encoded certificate and key
@@ -79,6 +82,10 @@ func Transport(opts TransportOptions) (http.RoundTripper, error) {
 		TLSClientConfig:       &tls.Config{},
 	}
 
+	if opts.InsecureTLS {
+		tr.TLSClientConfig.InsecureSkipVerify = true
+	}
+
 	if opts.TLSClientCertKeyFilename != "" {
 		certs, key, err := readPEMCertKey(opts.TLSClientCertKeyFilename)
 		if err != nil {