Add config options for class name and class name required (#99)

charts/caddy-ingress-controller/templates/deployment.yaml

@@ -76,6 +76,12 @@ spec:
             {{- if .Values.ingressController.verbose }}
             - -v
             {{- end }}
+            {{- if .Values.ingressController.className }}
+            - -class-name={{ .Values.ingressController.className }}
+            {{- end }}
+            {{- if .Values.ingressController.classNameRequired }}
+            - -class-name-required={{ .Values.ingressController.classNameRequired }}
+            {{- end }}
           readinessProbe:
             initialDelaySeconds: 3
             periodSeconds: 10

charts/caddy-ingress-controller/values.yaml

@@ -21,7 +21,8 @@ ingressController:
   verbose: false
   rbac:
     create: true
-
+  className: "caddy"
+  classNameRequired: false
   leaseId: ""
   config:
     # -- Acme Server URL
@@ -47,7 +48,8 @@ serviceAccount:
 
 podAnnotations: {}
 
-podSecurityContext: {}
+podSecurityContext:
+  {}
   # fsGroup: 2000
 
 podDisruptionBudget:
@@ -64,7 +66,8 @@ securityContext:
   runAsUser: 0
   runAsGroup: 0
 
-resources: {}
+resources:
+  {}
   # We usually recommend not to specify default resources and to leave this as a conscious
   # choice for the user. This also increases chances charts run on environments with little
   # resources, such as Minikube. If you do want to specify resources, uncomment the following

cmd/caddy/flag.go

@@ -2,14 +2,21 @@ package main
 
 import (
 	"flag"
-	"github.com/caddyserver/ingress/pkg/store"
 	"strings"
+
+	"github.com/caddyserver/ingress/pkg/store"
 )
 
 func parseFlags() store.Options {
 	var namespace string
 	flag.StringVar(&namespace, "namespace", "", "the namespace that you would like to observe kubernetes ingress resources in.")
 
+	var className string
+	flag.StringVar(&className, "class-name", "caddy", "class name of the ingress controller")
+
+	var classNameRequired bool
+	flag.BoolVar(&classNameRequired, "class-name-required", false, "only allow ingress resources with a matching ingress class name")
+
 	var configMapName string
 	flag.StringVar(&configMapName, "config-map", "", "defines the config map name from where to load global options")
 
@@ -25,10 +32,12 @@ func parseFlags() store.Options {
 	flag.Parse()
 
 	return store.Options{
-		WatchNamespace: namespace,
-		ConfigMapName:  configMapName,
-		Verbose:        verbose,
-		LeaseId:        leaseId,
-		PluginsOrder:   strings.Split(pluginsOrder, ","),
+		WatchNamespace:    namespace,
+		ClassName:         className,
+		ClassNameRequired: classNameRequired,
+		ConfigMapName:     configMapName,
+		Verbose:           verbose,
+		LeaseId:           leaseId,
+		PluginsOrder:      strings.Split(pluginsOrder, ","),
 	}
 }

internal/controller/controller.go

@@ -5,6 +5,9 @@ import (
 	"context"
 	"encoding/json"
 	"fmt"
+	"os"
+	"time"
+
 	"github.com/caddyserver/caddy/v2"
 	"github.com/caddyserver/certmagic"
 	"github.com/caddyserver/ingress/internal/k8s"
@@ -18,8 +21,6 @@ import (
 	"k8s.io/client-go/kubernetes"
 	"k8s.io/client-go/tools/cache"
 	"k8s.io/client-go/util/workqueue"
-	"os"
-	"time"
 
 	// load required caddy plugins
 	_ "github.com/caddyserver/caddy/v2/modules/caddyhttp/reverseproxy"
@@ -123,10 +124,9 @@ func NewCaddyController(
 
 	// Watch ingress resources in selected namespaces
 	ingressParams := k8s.IngressParams{
-		InformerFactory: controller.factories.WatchedNamespace,
-		// TODO Add configuration for that
-		ClassName:         "caddy",
-		ClassNameRequired: false,
+		InformerFactory:   controller.factories.WatchedNamespace,
+		ClassName:         opts.ClassName,
+		ClassNameRequired: opts.ClassNameRequired,
 	}
 	controller.informers.Ingress = k8s.WatchIngresses(ingressParams, k8s.IngressHandlers{
 		AddFunc:    controller.onIngressAdded,

pkg/store/options.go

@@ -2,9 +2,11 @@ package store
 
 // Options represents ingress controller config received through cli arguments.
 type Options struct {
-	WatchNamespace string
-	ConfigMapName  string
-	Verbose        bool
-	LeaseId        string
-	PluginsOrder   []string
+	WatchNamespace    string
+	ConfigMapName     string
+	ClassName         string
+	ClassNameRequired bool
+	Verbose           bool
+	LeaseId           string
+	PluginsOrder      []string
 }