Improve path rule (#8623)

* Improve path rule

* Add nginx configuration tests

* Revert framework changes

* Add test to patched directives

* Fix root conf test

* Add comment in new function

internal/ingress/inspector/rules.go

@@ -22,8 +22,8 @@ import (
 )
 
 var (
-	invalidAliasDirective = regexp.MustCompile(`\s*alias\s*.*;`)
-	invalidRootDirective  = regexp.MustCompile(`\s*root\s*.*;`)
+	invalidAliasDirective = regexp.MustCompile(`(?s)\s*alias\s*.*;`)
+	invalidRootDirective  = regexp.MustCompile(`(?s)\s*root\s*.*;`)
 	invalidEtcDir         = regexp.MustCompile(`/etc/(passwd|shadow|group|nginx|ingress-controller)`)
 	invalidSecretsDir     = regexp.MustCompile(`/var/run/secrets`)
 	invalidByLuaDirective = regexp.MustCompile(`.*_by_lua.*`)

internal/ingress/inspector/rules_test.go

@@ -35,6 +35,11 @@ func TestCheckRegex(t *testing.T) {
 			wantErr: true,
 			value:   "   alias    blabla/lala ;",
 		},
+		{
+			name:    "must refuse invalid alias with line break",
+			wantErr: true,
+			value:   "alias #\n/lalala/1/;",
+		},
 		{
 			name:    "must refuse invalid attempt to call /etc",
 			wantErr: true,