upgrade to traefik v3

consul/discovery.go

@@ -65,6 +65,7 @@ func (s *Service) Register() error {
 		Tags:    s.getTags(),
 		Check: &consul.AgentServiceCheck{
 			TTL:                            s.ttl.String(),
+			DeregisterCriticalServiceAfter: "5s",
 		},
 	}
 
@@ -138,7 +139,7 @@ func (s *Service) healthCheck() (bool, error) {
 func (s *Service) getTags() []string {
 	tags := []string{
 		"traefik.enable=true",
-		"traefik.http.routers." + s.Name + ".rule=Headers(`X-API-SERVICE`, `" + s.Name + "`)",
+		"traefik.http.routers." + s.Name + ".rule=Header(`X-API-SERVICE`, `" + s.Name + "`)",
 		"traefik.http.routers." + s.Name + ".entryPoints=https",
 		"traefik.http.routers." + s.Name + ".tls=true",
 		"traefik.http.routers." + s.Name + ".service=" + s.Name,