Add e2e tests for NLB IP mode (kubernetes-sigs#1500)

* e2e tests for k8s service

- Add support for e2e testing of AWS NLB in IP mode
- Verify target group health check config
- Test NLB access-log annotations
- Test TLS annotations
- Traffic tests

* separate e2e tests from Makefile target

Author: kishorj

Makefile

@@ -15,7 +15,7 @@ all: controller
 
 # Run tests
 test: generate fmt vet manifests
-	go test ./... -coverprofile cover.out
+	go test ./pkg/... ./webhooks/... -coverprofile cover.out
 
 # Build controller binary
 controller: generate fmt vet

pkg/aws/cloud.go

@@ -30,6 +30,9 @@ type Cloud interface {
 	// Shield provides API to AWS Shield
 	Shield() services.Shield
 
+	// RGT provides API to AWS RGT
+	RGT() services.RGT
+
 	// Region for the kubernetes cluster
 	Region() string
 
@@ -80,6 +83,7 @@ func NewCloud(cfg CloudConfig, metricsRegisterer prometheus.Registerer) (Cloud,
 		wafv2:       services.NewWAFv2(sess),
 		wafRegional: services.NewWAFRegional(sess, cfg.Region),
 		shield:      services.NewShield(sess),
+		rgt:         services.NewRGT(sess),
 	}, nil
 }
 
@@ -95,6 +99,7 @@ type defaultCloud struct {
 	wafv2       services.WAFv2
 	wafRegional services.WAFRegional
 	shield      services.Shield
+	rgt         services.RGT
 }
 
 func (c *defaultCloud) EC2() services.EC2 {
@@ -121,6 +126,10 @@ func (c *defaultCloud) Shield() services.Shield {
 	return c.shield
 }
 
+func (c *defaultCloud) RGT() services.RGT {
+	return c.rgt
+}
+
 func (c *defaultCloud) Region() string {
 	return c.cfg.Region
 }

pkg/aws/services/rgt.go

@@ -0,0 +1,22 @@
+package services
+
+import (
+	"github.com/aws/aws-sdk-go/aws/session"
+	"github.com/aws/aws-sdk-go/service/resourcegroupstaggingapi"
+	"github.com/aws/aws-sdk-go/service/resourcegroupstaggingapi/resourcegroupstaggingapiiface"
+)
+
+type RGT interface {
+	resourcegroupstaggingapiiface.ResourceGroupsTaggingAPIAPI
+}
+
+// NewRGT constructs new RGT implementation.
+func NewRGT(session *session.Session) RGT {
+	return &defaultRGT{
+		ResourceGroupsTaggingAPIAPI: resourcegroupstaggingapi.New(session),
+	}
+}
+
+type defaultRGT struct {
+	resourcegroupstaggingapiiface.ResourceGroupsTaggingAPIAPI
+}