fix: disable probe and metrics endpoints by default

The default values for --health-probe-bind-address and --metrics-bind-address
were ":0", which in controller-runtime means "bind to a random free port"
rather than "disabled". Because the chart runs cozy-proxy with hostNetwork=true,
these showed up as two unexpected high-port listeners on the host. Switch the
defaults to "0", the controller-runtime convention for disabling the server.
Users who want health probes or metrics can pass an explicit bind address.

Refs: #5

Co-Authored-By: Claude <noreply@anthropic.com>
Signed-off-by: Andrei Kvapil <kvapss@gmail.com>

Author: kvaps

main.go

@@ -34,8 +34,8 @@ func init() {
 func main() {
 	var probeAddr string
 	var metricsAddr string
-	flag.StringVar(&probeAddr, "health-probe-bind-address", ":0", "The address the probe endpoint binds to.")
-	flag.StringVar(&metricsAddr, "metrics-bind-address", ":0", "The address the metric endpoint binds to.")
+	flag.StringVar(&probeAddr, "health-probe-bind-address", "0", "The address the probe endpoint binds to. Set to \"0\" to disable.")
+	flag.StringVar(&metricsAddr, "metrics-bind-address", "0", "The address the metric endpoint binds to. Set to \"0\" to disable.")
 	opts := zap.Options{
 		Development: true,
 	}