Updated golang version to 1.23.0

.github/workflows/golangci-lint.yaml

@@ -10,8 +10,8 @@ permissions:
   contents: read
 
 env:
-  GO_VERSION: v1.22
-  GOLANGCI_LINT_VERSION: v1.56
+  GO_VERSION: v1.23
+  GOLANGCI_LINT_VERSION: v1.60.1
 
 jobs:
   golangci:

Makefile

@@ -24,7 +24,7 @@ ALL_ARCH ?= amd64 arm arm64 ppc64le s390x
 # The output type could either be docker (local), or registry.
 OUTPUT_TYPE ?= docker
 GO_TOOLCHAIN ?= golang
-GO_VERSION ?= 1.22.7
+GO_VERSION ?= 1.23.0
 BASEIMAGE ?= gcr.io/distroless/static-debian11:nonroot
 
 ifeq ($(GOPATH),)
@@ -33,7 +33,7 @@ endif
 GOOS ?= $(shell go env GOOS)
 GOARCH ?= $(shell go env GOARCH)
 INSTALL_LOCATION:=$(shell go env GOPATH)/bin
-GOLANGCI_LINT_VERSION ?= 1.56.2
+GOLANGCI_LINT_VERSION ?= 1.60.1
 GOSEC_VERSION ?= 2.13.1
 
 REGISTRY ?= gcr.io/$(shell gcloud config get-value project)
@@ -125,7 +125,7 @@ bin/proxy-server:
 .PHONY: lint
 lint:
 	curl -sSfL https://raw.githubusercontent.com/golangci/golangci-lint/master/install.sh | sh -s -- -b $(INSTALL_LOCATION) v$(GOLANGCI_LINT_VERSION)
-	$(INSTALL_LOCATION)/golangci-lint run --verbose
+	$(INSTALL_LOCATION)/golangci-lint run --config ./.golangci.yaml --verbose
 
 ## --------------------------------------
 ## Go

artifacts/images/agent-build.Dockerfile

@@ -5,7 +5,7 @@ ARG GO_TOOLCHAIN
 ARG GO_VERSION
 ARG BASEIMAGE
 
-FROM --platform=linux/${BUILDARCH} ${GO_TOOLCHAIN}:${GO_VERSION} as builder
+FROM --platform=linux/${BUILDARCH} ${GO_TOOLCHAIN}:${GO_VERSION} AS builder
 
 # Copy in the go src
 WORKDIR /go/src/sigs.k8s.io/apiserver-network-proxy

artifacts/images/server-build.Dockerfile

@@ -5,7 +5,7 @@ ARG GO_TOOLCHAIN
 ARG GO_VERSION
 ARG BASEIMAGE
 
-FROM --platform=linux/${BUILDARCH} ${GO_TOOLCHAIN}:${GO_VERSION} as builder
+FROM --platform=linux/${BUILDARCH} ${GO_TOOLCHAIN}:${GO_VERSION} AS builder
 
 # Copy in the go src
 WORKDIR /go/src/sigs.k8s.io/apiserver-network-proxy

artifacts/images/test-client-build.Dockerfile

@@ -5,7 +5,7 @@ ARG GO_TOOLCHAIN
 ARG GO_VERSION
 ARG BASEIMAGE
 
-FROM --platform=linux/${BUILDARCH} ${GO_TOOLCHAIN}:${GO_VERSION} as builder
+FROM --platform=linux/${BUILDARCH} ${GO_TOOLCHAIN}:${GO_VERSION} AS builder
 
 # Copy in the go src
 WORKDIR /go/src/sigs.k8s.io/apiserver-network-proxy

artifacts/images/test-server-build.Dockerfile

@@ -5,7 +5,7 @@ ARG GO_TOOLCHAIN
 ARG GO_VERSION
 ARG BASEIMAGE
 
-FROM --platform=linux/${BUILDARCH} ${GO_TOOLCHAIN}:${GO_VERSION} as builder
+FROM --platform=linux/${BUILDARCH} ${GO_TOOLCHAIN}:${GO_VERSION} AS builder
 
 # Copy in the go src
 WORKDIR /go/src/sigs.k8s.io/apiserver-network-proxy

cmd/server/app/server.go

@@ -467,7 +467,7 @@ func (p *Proxy) runHealthServer(o *options.ProxyRunOptions, server *server.Proxy
 			return
 		}
 		w.WriteHeader(500)
-		fmt.Fprintf(w, msg)
+		fmt.Fprint(w, msg)
 	})
 
 	muxHandler := http.NewServeMux()

go.mod

@@ -1,6 +1,6 @@
 module sigs.k8s.io/apiserver-network-proxy
 
-go 1.22.7
+go 1.23.0
 
 require (
 	github.com/google/uuid v1.6.0
@@ -40,6 +40,7 @@ require (
 	github.com/go-openapi/jsonreference v0.20.2 // indirect
 	github.com/go-openapi/swag v0.22.4 // indirect
 	github.com/gogo/protobuf v1.3.2 // indirect
+	github.com/golang/mock v1.6.0 // indirect
 	github.com/golang/protobuf v1.5.4 // indirect
 	github.com/google/gnostic-models v0.6.8 // indirect
 	github.com/google/go-cmp v0.6.0 // indirect

go.sum

@@ -33,6 +33,8 @@ github.com/go-task/slim-sprig/v3 v3.0.0 h1:sUs3vkvUymDpBKi3qH1YSqBQk9+9D/8M2mN1v
 github.com/go-task/slim-sprig/v3 v3.0.0/go.mod h1:W848ghGpv3Qj3dhTPRyJypKRiqCdHZiAzKg9hl15HA8=
 github.com/gogo/protobuf v1.3.2 h1:Ov1cvc58UF3b5XjBnZv7+opcTcQFZebYjWzi34vdm4Q=
 github.com/gogo/protobuf v1.3.2/go.mod h1:P1XiOD3dCwIKUDQYPy72D8LYyHL2YPYrpS2s69NZV8Q=
+github.com/golang/mock v1.6.0 h1:ErTB+efbowRARo13NNdxyJji2egdxLGQhRaY+DUumQc=
+github.com/golang/mock v1.6.0/go.mod h1:p6yTPP+5HYm5mzsMV8JkE6ZKdX+/wYM6Hr+LicevLPs=
 github.com/golang/protobuf v1.5.4 h1:i7eJL8qZTpSEXOPTxNKhASYpMn+8e5Q6AdndVa1dWek=
 github.com/golang/protobuf v1.5.4/go.mod h1:lnTiLA8Wa4RWRcIUkrtSVa5nRhsEGBg48fD6rSs7xps=
 github.com/google/gnostic-models v0.6.8 h1:yo/ABAfM5IMRsS1VnXjTBvUb61tFIHozhlYvRgGre9I=
@@ -122,6 +124,7 @@ github.com/x448/float16 v0.8.4 h1:qLwI1I70+NjRFUR3zs1JPUCgaCXSh3SW62uAKT1mSBM=
 github.com/x448/float16 v0.8.4/go.mod h1:14CWIYCyZA/cWjXOioeEpHeN/83MdbZDRQHoFcYsOfg=
 github.com/yuin/goldmark v1.1.27/go.mod h1:3hX8gzYuyVAZsxl0MRgGTJEmQBFcNTphYh9decYSb74=
 github.com/yuin/goldmark v1.2.1/go.mod h1:3hX8gzYuyVAZsxl0MRgGTJEmQBFcNTphYh9decYSb74=
+github.com/yuin/goldmark v1.3.5/go.mod h1:mwnBkeHKe2W/ZEtQ+71ViKU8L12m81fl3OWwC1Zlc8k=
 go.uber.org/goleak v1.3.0 h1:2K3zAYmnTNqV73imy9J1T3WC+gmCePx2hEGkimedGto=
 go.uber.org/goleak v1.3.0/go.mod h1:CoHD4mav9JJNrW/WLlf7HGZPjdw8EucARQHekz1X6bE=
 go.uber.org/mock v0.5.0 h1:KAMbZvZPyBPWgD14IrIQ38QCyjwpvVVV6K/bHl1IwQU=
@@ -137,22 +140,29 @@ golang.org/x/exp v0.0.0-20230515195305-f3d0a9c9a5cc h1:mCRnTeVUjcrhlRmO0VK8a6k6R
 golang.org/x/exp v0.0.0-20230515195305-f3d0a9c9a5cc/go.mod h1:V1LtkGg67GoY2N1AnLN78QLrzxkLyJw7RJb1gzOOz9w=
 golang.org/x/mod v0.2.0/go.mod h1:s0Qsj1ACt9ePp/hMypM3fl4fZqREWJwdYDEqhRiZZUA=
 golang.org/x/mod v0.3.0/go.mod h1:s0Qsj1ACt9ePp/hMypM3fl4fZqREWJwdYDEqhRiZZUA=
+golang.org/x/mod v0.4.2/go.mod h1:s0Qsj1ACt9ePp/hMypM3fl4fZqREWJwdYDEqhRiZZUA=
 golang.org/x/net v0.0.0-20190404232315-eb5bcb51f2a3/go.mod h1:t9HGtf8HONx5eT2rtn7q6eTqICYqUVnKs3thJo3Qplg=
 golang.org/x/net v0.0.0-20190620200207-3b0461eec859/go.mod h1:z5CRVTTTmAJ677TzLLGU+0bjPO0LkuOLi4/5GtJWs/s=
 golang.org/x/net v0.0.0-20200226121028-0de0cce0169b/go.mod h1:z5CRVTTTmAJ677TzLLGU+0bjPO0LkuOLi4/5GtJWs/s=
 golang.org/x/net v0.0.0-20201021035429-f5854403a974/go.mod h1:sp8m0HH+o8qH0wwXwYZr8TS3Oi6o0r6Gce1SSxlDquU=
+golang.org/x/net v0.0.0-20210405180319-a5a99cb37ef4/go.mod h1:p54w0d4576C0XHj96bSt6lcn1PtDYWL6XObtHCRCNQM=
 golang.org/x/net v0.30.0 h1:AcW1SDZMkb8IpzCdQUaIq2sP4sZ4zw+55h6ynffypl4=
 golang.org/x/net v0.30.0/go.mod h1:2wGyMJ5iFasEhkwi13ChkO/t1ECNC4X4eBKkVFyYFlU=
 golang.org/x/oauth2 v0.23.0 h1:PbgcYx2W7i4LvjJWEbf0ngHV6qJYr86PkAV3bXdLEbs=
 golang.org/x/oauth2 v0.23.0/go.mod h1:XYTD2NtWslqkgxebSiOHnXEap4TF09sJSc7H1sXbhtI=
 golang.org/x/sync v0.0.0-20190423024810-112230192c58/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
 golang.org/x/sync v0.0.0-20190911185100-cd5d95a43a6e/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
 golang.org/x/sync v0.0.0-20201020160332-67f06af15bc9/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
+golang.org/x/sync v0.0.0-20210220032951-036812b2e83c/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
 golang.org/x/sys v0.0.0-20190215142949-d0b11bdaac8a/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY=
 golang.org/x/sys v0.0.0-20190412213103-97732733099d/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
 golang.org/x/sys v0.0.0-20200930185726-fdedc70b468f/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
+golang.org/x/sys v0.0.0-20201119102817-f84b799fce68/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
+golang.org/x/sys v0.0.0-20210330210617-4fbd30eecc44/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
+golang.org/x/sys v0.0.0-20210510120138-977fb7262007/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
 golang.org/x/sys v0.26.0 h1:KHjCJyddX0LoSTb3J+vWpupP9p0oznkqVk/IfjymZbo=
 golang.org/x/sys v0.26.0/go.mod h1:/VUhepiaJMQUp4+oa/7Zr1D23ma6VTLIYjOOTFZPUcA=
+golang.org/x/term v0.0.0-20201126162022-7de9c90e9dd1/go.mod h1:bj7SfCRtBDWHUb9snDiAeCFNEtKQo2Wmx5Cou7ajbmo=
 golang.org/x/term v0.25.0 h1:WtHI/ltw4NvSUig5KARz9h521QvRC8RmF/cuYqifU24=
 golang.org/x/term v0.25.0/go.mod h1:RPyXicDX+6vLxogjjRxjgD2TKtmAO6NZBsBRfrOLu7M=
 golang.org/x/text v0.3.0/go.mod h1:NqM8EUOU14njkJ3fqMW+pc6Ldnwhi/IjpwHt7yyuwOQ=
@@ -165,6 +175,7 @@ golang.org/x/tools v0.0.0-20180917221912-90fa682c2a6e/go.mod h1:n7NCudcB/nEzxVGm
 golang.org/x/tools v0.0.0-20191119224855-298f0cb1881e/go.mod h1:b+2E5dAYhXwXZwtnZ6UAqBI28+e2cm9otk0dWdXHAEo=
 golang.org/x/tools v0.0.0-20200619180055-7c47624df98f/go.mod h1:EkVYQZoAsY45+roYkvgYkIh4xh/qjgUK9TdY2XT94GE=
 golang.org/x/tools v0.0.0-20210106214847-113979e3529a/go.mod h1:emZCQorbCU4vsT4fOWvOPXz4eW1wZW4PmDk9uLelYpA=
+golang.org/x/tools v0.1.1/go.mod h1:o0xws9oXOQQZyjljx8fwUC0k7L1pTE6eaCbjGeHmOkk=
 golang.org/x/tools v0.22.0 h1:gqSGLZqv+AI9lIQzniJ0nZDRG5GBPsSi+DRNHWNz6yA=
 golang.org/x/tools v0.22.0/go.mod h1:aCwcsjqvq7Yqt6TNyX7QMU2enbQ/Gt0bo6krSeEri+c=
 golang.org/x/xerrors v0.0.0-20190717185122-a985d3407aa7/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=

pkg/agent/clientset.go

@@ -32,8 +32,8 @@ import (
 
 const (
 	fromResponses = "KNP server response headers"
-	fromLeases = "KNP lease count"
-	fromFallback = "fallback to 1"
+	fromLeases    = "KNP lease count"
+	fromFallback  = "fallback to 1"
 )
 
 // ClientSet consists of clients connected to each instance of an HA proxy server.
@@ -46,8 +46,8 @@ type ClientSet struct {
 	address string // proxy server address. Assuming HA proxy server
 
 	leaseCounter            ServerCounter // counts number of proxy server leases
-	lastReceivedServerCount int                 // last server count received from a proxy server
-	lastServerCount         int                 // last server count value from either lease system or proxy server, former takes priority
+	lastReceivedServerCount int           // last server count received from a proxy server
+	lastServerCount         int           // last server count value from either lease system or proxy server, former takes priority
 
 	// unless it is an HA server. Initialized when the ClientSet creates
 	// the first client. When syncForever is set, it will be the most recently seen.
@@ -73,7 +73,7 @@ type ClientSet struct {
 	warnOnChannelLimit bool
 	xfrChannelSize     int
 
-	syncForever bool // Continue syncing (support dynamic server count).
+	syncForever       bool // Continue syncing (support dynamic server count).
 	serverCountSource string
 }
 

pkg/agent/clientset_test.go

@@ -29,59 +29,58 @@ func (f *FakeServerCounter) Count() int {
 }
 
 func TestServerCount(t *testing.T) {
-	testCases := []struct{
-		name string
+	testCases := []struct {
+		name              string
 		serverCountSource string
-		leaseCounter ServerCounter
-		responseCount int
-		want int
-	} {
+		leaseCounter      ServerCounter
+		responseCount     int
+		want              int
+	}{
 		{
-			name: "higher from response",
+			name:              "higher from response",
 			serverCountSource: "max",
-			responseCount: 42,
-			leaseCounter: &FakeServerCounter{24},
-			want: 42,
+			responseCount:     42,
+			leaseCounter:      &FakeServerCounter{24},
+			want:              42,
 		},
 		{
-			name: "higher from leases",
+			name:              "higher from leases",
 			serverCountSource: "max",
-			responseCount: 3,
-			leaseCounter: &FakeServerCounter{6},
-			want: 6,
+			responseCount:     3,
+			leaseCounter:      &FakeServerCounter{6},
+			want:              6,
 		},
 		{
-			name: "both zero",
+			name:              "both zero",
 			serverCountSource: "max",
-			responseCount: 0,
-			leaseCounter: &FakeServerCounter{0},
-			want: 1,
+			responseCount:     0,
+			leaseCounter:      &FakeServerCounter{0},
+			want:              1,
 		},
 
 		{
-			name: "response picked by default when no lease counter",
+			name:              "response picked by default when no lease counter",
 			serverCountSource: "default",
-			responseCount: 3,
-			leaseCounter: nil,
-			want: 3,
+			responseCount:     3,
+			leaseCounter:      nil,
+			want:              3,
 		},
 		{
-			name: "lease counter always picked when present",
+			name:              "lease counter always picked when present",
 			serverCountSource: "default",
-			responseCount: 6,
-			leaseCounter: &FakeServerCounter{3},
-			want: 3,
+			responseCount:     6,
+			leaseCounter:      &FakeServerCounter{3},
+			want:              3,
 		},
 	}
 
 	for _, tc := range testCases {
 		t.Run(tc.name, func(t *testing.T) {
 
 			cs := &ClientSet{
-				clients: make(map[string]*Client),
-				leaseCounter: tc.leaseCounter,
+				clients:           make(map[string]*Client),
+				leaseCounter:      tc.leaseCounter,
 				serverCountSource: tc.serverCountSource,
-
 			}
 			cs.lastReceivedServerCount = tc.responseCount
 			if got := cs.ServerCount(); got != tc.want {

pkg/server/backend_manager_test.go

@@ -22,8 +22,8 @@ import (
 	"reflect"
 	"testing"
 
+	"github.com/golang/mock/gomock"
 	"github.com/stretchr/testify/assert"
-	"go.uber.org/mock/gomock"
 	"google.golang.org/grpc/metadata"
 
 	agentmock "sigs.k8s.io/apiserver-network-proxy/proto/agent/mocks"

pkg/server/server_test.go

@@ -25,8 +25,8 @@ import (
 	"testing"
 	"time"
 
+	"github.com/golang/mock/gomock"
 	"github.com/google/uuid"
-	"go.uber.org/mock/gomock"
 	"google.golang.org/grpc/metadata"
 
 	promtest "github.com/prometheus/client_golang/prometheus/testutil"