Add log for informer error

Signed-off-by: Zak Lawrence <zaklawrencea@protonmail.com>

controller.go

@@ -11,12 +11,12 @@ import (
 	"syscall"
 	"time"
 
-	kingpin "github.com/alecthomas/kingpin/v2"
 	"github.com/aws/aws-sdk-go/service/elbv2"
 	log "github.com/sirupsen/logrus"
 	"github.com/zalando-incubator/kube-ingress-aws-controller/aws"
 	"github.com/zalando-incubator/kube-ingress-aws-controller/certs"
 	"github.com/zalando-incubator/kube-ingress-aws-controller/kubernetes"
+	kingpin "gopkg.in/alecthomas/kingpin.v2"
 )
 
 const (

go.mod

@@ -3,7 +3,6 @@ module github.com/zalando-incubator/kube-ingress-aws-controller
 go 1.22
 
 require (
-	github.com/alecthomas/kingpin/v2 v2.4.0
 	github.com/aws/aws-sdk-go v1.50.36
 	github.com/ghodss/yaml v1.0.0
 	github.com/google/go-cmp v0.6.0
@@ -14,13 +13,15 @@ require (
 	github.com/sirupsen/logrus v1.9.3
 	github.com/stretchr/testify v1.9.0
 	github.com/zalando/skipper v0.21.23
+	gopkg.in/alecthomas/kingpin.v2 v2.2.6
 	k8s.io/api v0.26.14
 	k8s.io/apimachinery v0.26.14
 	k8s.io/client-go v0.26.14
 )
 
 require (
 	github.com/Microsoft/hcsshim v0.12.0 // indirect
+	github.com/alecthomas/template v0.0.0-20190718012654-fb15b899a751 // indirect
 	github.com/alecthomas/units v0.0.0-20211218093645-b94a6e3cc137 // indirect
 	github.com/beorn7/perks v1.0.1 // indirect
 	github.com/cenkalti/backoff v2.2.1+incompatible // indirect
@@ -65,7 +66,6 @@ require (
 	github.com/rcrowley/go-metrics v0.0.0-20201227073835-cf1acfcdf475 // indirect
 	github.com/redis/go-redis/v9 v9.5.1 // indirect
 	github.com/tidwall/pretty v1.2.1 // indirect
-	github.com/xhit/go-str2duration/v2 v2.1.0 // indirect
 	go.opentelemetry.io/contrib/instrumentation/net/http/otelhttp v0.49.0 // indirect
 	go.opentelemetry.io/otel/trace v1.24.0 // indirect
 	go.uber.org/atomic v1.11.0 // indirect

go.sum

@@ -14,8 +14,8 @@ github.com/Microsoft/hcsshim v0.12.0 h1:rbICA+XZFwrBef2Odk++0LjFvClNCJGRK+fsrP25
 github.com/Microsoft/hcsshim v0.12.0/go.mod h1:RZV12pcHCXQ42XnlQ3pz6FZfmrC1C+R4gaOHhRNML1g=
 github.com/abbot/go-http-auth v0.4.0 h1:QjmvZ5gSC7jm3Zg54DqWE/T5m1t2AfDu6QlXJT0EVT0=
 github.com/abbot/go-http-auth v0.4.0/go.mod h1:Cz6ARTIzApMJDzh5bRMSUou6UMSp0IEXg9km/ci7TJM=
-github.com/alecthomas/kingpin/v2 v2.4.0 h1:f48lwail6p8zpO1bC4TxtqACaGqHYA22qkHjHpqDjYY=
-github.com/alecthomas/kingpin/v2 v2.4.0/go.mod h1:0gyi0zQnjuFk8xrkNKamJoyUo382HRL7ATRpFZCw6tE=
+github.com/alecthomas/template v0.0.0-20190718012654-fb15b899a751 h1:JYp7IbQjafoB+tBA3gMyHYHrpOtNuDiK/uB5uXxq5wM=
+github.com/alecthomas/template v0.0.0-20190718012654-fb15b899a751/go.mod h1:LOuyumcjzFXgccqObfd/Ljyb9UuFJ6TxHnclSeseNhc=
 github.com/alecthomas/units v0.0.0-20211218093645-b94a6e3cc137 h1:s6gZFSlWYmbqAuRjVTiNNhvNRfY2Wxp9nhfyel4rklc=
 github.com/alecthomas/units v0.0.0-20211218093645-b94a6e3cc137/go.mod h1:OMCwj8VM1Kc9e19TLln2VL61YJF0x1XFtfdL4JdbSyE=
 github.com/andybalholm/brotli v1.1.0 h1:eLKJA0d02Lf0mVpIDgYnqXcUn0GqVmEFny3VuID1U3M=
@@ -271,8 +271,6 @@ github.com/uber/jaeger-client-go v2.30.0+incompatible h1:D6wyKGCecFaSRUpo8lCVbaO
 github.com/uber/jaeger-client-go v2.30.0+incompatible/go.mod h1:WVhlPFC8FDjOFMMWRy2pZqQJSXxYSwNYOkTr/Z6d3Kk=
 github.com/uber/jaeger-lib v2.4.1+incompatible h1:td4jdvLcExb4cBISKIpHuGoVXh+dVKhn2Um6rjCsSsg=
 github.com/uber/jaeger-lib v2.4.1+incompatible/go.mod h1:ComeNDZlWwrWnDv8aPp0Ba6+uUTzImX/AauajbLI56U=
-github.com/xhit/go-str2duration/v2 v2.1.0 h1:lxklc02Drh6ynqX+DdPyp5pCKLUQpRT8bp8Ydu2Bstc=
-github.com/xhit/go-str2duration/v2 v2.1.0/go.mod h1:ohY8p+0f07DiV6Em5LKB0s2YpLtXVyJfNt1+BlmyAsU=
 github.com/yookoala/gofast v0.8.0 h1:UmGTeBj2EF5gvS58ByE9HFdQ9MeYSUIwf7JN9aFno3Y=
 github.com/yookoala/gofast v0.8.0/go.mod h1:OJU201Q6HCaE1cASckaTbMm3KB6e0cZxK0mgqfwOKvQ=
 github.com/yuin/goldmark v1.1.27/go.mod h1:3hX8gzYuyVAZsxl0MRgGTJEmQBFcNTphYh9decYSb74=
@@ -403,6 +401,8 @@ google.golang.org/protobuf v1.26.0-rc.1/go.mod h1:jlhhOSvTdKEhbULTjvd4ARK9grFBp0
 google.golang.org/protobuf v1.26.0/go.mod h1:9q0QmTI4eRPtz6boOQmLYwt+qCgq0jsYwAQnmE0givc=
 google.golang.org/protobuf v1.33.0 h1:uNO2rsAINq/JlFpSdYEKIZ0uKD/R9cpdv0T+yoGwGmI=
 google.golang.org/protobuf v1.33.0/go.mod h1:c6P6GXX6sHbq/GpV6MGZEdwhWPcYBgnhAHhKbcUYpos=
+gopkg.in/alecthomas/kingpin.v2 v2.2.6 h1:jMFz6MfLP0/4fUyZle81rXUoxOBFi19VUFKVDOQfozc=
+gopkg.in/alecthomas/kingpin.v2 v2.2.6/go.mod h1:FMv+mEhP44yOT+4EoQTLFTRgOQ1FBLkstjWtayDeSgw=
 gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
 gopkg.in/check.v1 v1.0.0-20180628173108-788fd7840127/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
 gopkg.in/check.v1 v1.0.0-20190902080502-41f04d3bba15/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=

kubernetes/pods.go

@@ -50,7 +50,7 @@ func (a *Adapter) PodInformer(ctx context.Context, endpointChan chan<- []string)
 	queueEndpoints(&podEndpoints, endpointChan)
 
 	// delta triggered updates
-	_, _ = informer.AddEventHandler(cache.ResourceEventHandlerFuncs{
+	_, err = informer.AddEventHandler(cache.ResourceEventHandlerFuncs{
 		UpdateFunc: func(_, newResource interface{}) {
 			pod, ok := newResource.(*corev1.Pod)
 			if !ok {
@@ -76,6 +76,10 @@ func (a *Adapter) PodInformer(ctx context.Context, endpointChan chan<- []string)
 			}
 		},
 	})
+	if err != nil {
+		log.Errorf("Error adding event handler to informer: %v", err)
+	}
+
 	<-ctx.Done()
 	return nil
 }