Remove fastcgi feature (#9864)

internal/ingress/annotations/fastcgi/main.go

@@ -1,106 +0,0 @@
-/*
-Copyright 2018 The Kubernetes Authors.
-
-Licensed under the Apache License, Version 2.0 (the "License");
-you may not use this file except in compliance with the License.
-You may obtain a copy of the License at
-
-    http://www.apache.org/licenses/LICENSE-2.0
-
-Unless required by applicable law or agreed to in writing, software
-distributed under the License is distributed on an "AS IS" BASIS,
-WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-See the License for the specific language governing permissions and
-limitations under the License.
-*/
-
-package fastcgi
-
-import (
-	"fmt"
-	"reflect"
-
-	networking "k8s.io/api/networking/v1"
-	"k8s.io/client-go/tools/cache"
-
-	"k8s.io/ingress-nginx/internal/ingress/annotations/parser"
-	ing_errors "k8s.io/ingress-nginx/internal/ingress/errors"
-	"k8s.io/ingress-nginx/internal/ingress/resolver"
-)
-
-type fastcgi struct {
-	r resolver.Resolver
-}
-
-// Config describes the per location fastcgi config
-type Config struct {
-	Index  string            `json:"index"`
-	Params map[string]string `json:"params"`
-}
-
-// Equal tests for equality between two Configuration types
-func (l1 *Config) Equal(l2 *Config) bool {
-	if l1 == l2 {
-		return true
-	}
-
-	if l1 == nil || l2 == nil {
-		return false
-	}
-
-	if l1.Index != l2.Index {
-		return false
-	}
-
-	return reflect.DeepEqual(l1.Params, l2.Params)
-}
-
-// NewParser creates a new fastcgiConfig protocol annotation parser
-func NewParser(r resolver.Resolver) parser.IngressAnnotation {
-	return fastcgi{r}
-}
-
-// ParseAnnotations parses the annotations contained in the ingress
-// rule used to indicate the fastcgiConfig.
-func (a fastcgi) Parse(ing *networking.Ingress) (interface{}, error) {
-
-	fcgiConfig := Config{}
-
-	if ing.GetAnnotations() == nil {
-		return fcgiConfig, nil
-	}
-
-	index, err := parser.GetStringAnnotation("fastcgi-index", ing)
-	if err != nil {
-		index = ""
-	}
-	fcgiConfig.Index = index
-
-	cm, err := parser.GetStringAnnotation("fastcgi-params-configmap", ing)
-	if err != nil {
-		return fcgiConfig, nil
-	}
-
-	cmns, cmn, err := cache.SplitMetaNamespaceKey(cm)
-	if err != nil {
-		return fcgiConfig, ing_errors.LocationDenied{
-			Reason: fmt.Errorf("error reading configmap name from annotation: %w", err),
-		}
-	}
-
-	if cmns != "" && cmns != ing.Namespace {
-		return fcgiConfig, fmt.Errorf("different namespace is not supported on fast_cgi param configmap")
-	}
-
-	cm = fmt.Sprintf("%v/%v", ing.Namespace, cmn)
-	cmap, err := a.r.GetConfigMap(cm)
-	if err != nil {
-		return fcgiConfig, ing_errors.LocationDenied{
-			Reason: fmt.Errorf("unexpected error reading configmap %s: %w", cm, err),
-		}
-	}
-
-	fcgiConfig.Params = cmap.Data
-
-	return fcgiConfig, nil
-}