Make ingress pathType "Exact" always override pathType "Prefix"

Author: Philipp Hossner

pkg/controller/controller.go

@@ -307,6 +307,12 @@ func (c *HAProxyController) setupHAProxyRules() error {
 				Scope:      "txn",
 				Expression: fmt.Sprintf("var(txn.host_match),concat(,txn.path,),map(%s)", maps.GetPath(route.PATH_EXACT)),
 			}, false),
+			c.haproxy.AddRule(frontend, rules.ReqSetVar{
+				Name:       "path_match",
+				Scope:      "txn",
+				Expression: fmt.Sprintf("var(txn.host_match),concat(,txn.path,),map(%s)", maps.GetPath(route.PATH_PREFIX_EXACT)),
+				CondTest:   "!{ var(txn.path_match) -m found }",
+			}, false),
 			c.haproxy.AddRule(frontend, rules.ReqSetVar{
 				Name:       "path_match",
 				Scope:      "txn",

pkg/haproxy/main.go

@@ -53,6 +53,7 @@ func New(osArgs utils.OSArgs, env env.Env, cfgFile []byte, p process.Process, cl
 		route.SNI,
 		route.HOST,
 		route.PATH_EXACT,
+		route.PATH_PREFIX_EXACT,
 		route.PATH_PREFIX,
 	}
 	if h.Maps, err = maps.New(env.MapsDir, persistentMaps); err != nil {

pkg/route/route.go

@@ -33,10 +33,11 @@ const (
 	FrontendHTTP  = "http"
 	FrontendHTTPS = "https"
 	// Routing Maps
-	SNI         maps.Name = "sni"
-	HOST        maps.Name = "host"
-	PATH_EXACT  maps.Name = "path-exact"
-	PATH_PREFIX maps.Name = "path-prefix"
+	SNI               maps.Name = "sni"
+	HOST              maps.Name = "host"
+	PATH_EXACT        maps.Name = "path-exact"
+	PATH_PREFIX_EXACT maps.Name = "path-prefix-exact"
+	PATH_PREFIX       maps.Name = "path-prefix"
 )
 
 var (
@@ -87,11 +88,11 @@ func AddHostPathRoute(route Route, mapFiles maps.Maps) error {
 		mapFiles.MapAppend(PATH_PREFIX, route.Host+"/"+"\t\t\t"+value)
 	case route.Path.PathTypeMatch == store.PATH_TYPE_PREFIX:
 		path = strings.TrimSuffix(path, "/")
-		mapFiles.MapAppend(PATH_EXACT, route.Host+path+"\t\t\t"+value)
+		mapFiles.MapAppend(PATH_PREFIX_EXACT, route.Host+path+"\t\t\t"+value)
 		mapFiles.MapAppend(PATH_PREFIX, route.Host+path+"/"+"\t\t\t"+value)
 	case route.Path.PathTypeMatch == store.PATH_TYPE_IMPLEMENTATION_SPECIFIC:
 		path = strings.TrimSuffix(path, "/")
-		mapFiles.MapAppend(PATH_EXACT, route.Host+path+"\t\t\t"+value)
+		mapFiles.MapAppend(PATH_PREFIX_EXACT, route.Host+path+"\t\t\t"+value)
 		mapFiles.MapAppend(PATH_PREFIX, route.Host+path+"\t\t\t"+value)
 	default:
 		return fmt.Errorf("unknown path type '%s' with backend '%s'", route.Path.PathTypeMatch, route.BackendName)