Fix OpenShift connector rootCA option

Signed-off-by: m.nabokikh <maksim.nabokikh@flant.com>

connector/openshift/openshift.go

@@ -227,7 +227,7 @@ func newHTTPClient(insecureCA bool, rootCA string) (*http.Client, error) {
 	if insecureCA {
 		tlsConfig = tls.Config{InsecureSkipVerify: true}
 	} else if rootCA != "" {
-		tlsConfig := tls.Config{RootCAs: x509.NewCertPool()}
+		tlsConfig = tls.Config{RootCAs: x509.NewCertPool()}
 		rootCABytes, err := ioutil.ReadFile(rootCA)
 		if err != nil {
 			return nil, fmt.Errorf("failed to read root-ca: %v", err)