Bump go to 1.21

Go 1.18 is old and no longer available in CentOS repositories.

Signed-off-by: Petr Horacek <[email protected]>

Makefile

@@ -37,7 +37,7 @@ $(BASE): ; $(info  setting GOPATH...)
 
 GOLANGCI = $(GOBIN)/golangci-lint
 $(GOBIN)/golangci-lint: | $(BASE) ; $(info  building golangci-lint...)
-	$Q go install -mod=mod github.com/golangci/golangci-lint/cmd/golangci-lint@v1.50.1
+	$Q go install -mod=mod github.com/golangci/golangci-lint/cmd/golangci-lint@v1.59.0
 
 build: format $(patsubst %, build-%, $(COMPONENTS))
 
@@ -83,7 +83,6 @@ docker-push:
 	$(OCI_BIN) push ${TLS_SETTING} ${REGISTRY}/ovs-cni-plugin:${IMAGE_GIT_TAG}
 
 dep: $(GO)
-	$(GO) mod tidy
 	$(GO) mod vendor
 
 manifests:

cmd/Dockerfile

@@ -1,4 +1,4 @@
-FROM quay.io/centos/centos:stream8 as builder
+FROM quay.io/centos/centos:stream9 as builder
 
 RUN mkdir /workdir
 WORKDIR /workdir

go.mod

@@ -87,4 +87,4 @@ replace (
 	k8s.io/sample-apiserver => k8s.io/sample-apiserver v0.19.1
 )
 
-go 1.18
+go 1.21

hack/docker-builder/Dockerfile

@@ -1,12 +1,12 @@
-FROM quay.io/fedora/fedora:38-x86_64
+FROM quay.io/fedora/fedora:40-x86_64
 
 RUN dnf -y install make git sudo gcc rsync-daemon rsync openvswitch hostname && \
     dnf -y clean all
 
 ENV GOPATH="/go"
 RUN \
     DESTINATION=/opt && \
-    VERSION=1.18.4 && \
+    VERSION=1.21.7 && \
     TARBALL=go${VERSION}.linux-amd64.tar.gz && \
     URL=https://dl.google.com/go && \
     mkdir -p ${DESTINATION} && \

hack/install-go.sh

@@ -1,7 +1,7 @@
 #!/bin/bash -xe
 
 destination=$1
-version=1.18.4
+version=1.21.7
 arch="$(arch | sed s'/aarch64/arm64/' | sed s'/x86_64/amd64/')"
 tarball=go$version.linux-$arch.tar.gz
 url=https://dl.google.com/go/

pkg/config/config.go

@@ -19,7 +19,7 @@ package config
 import (
 	"encoding/json"
 	"fmt"
-	"io/ioutil"
+	"io"
 	"os"
 	"strings"
 
@@ -165,7 +165,7 @@ func loadFlatNetConf[T types.NetConfs](configPath string) (*T, error) {
 				return nil, fmt.Errorf("open ovs config file %s error: %v", confFile, err)
 			}
 			defer jsonFile.Close()
-			jsonBytes, err := ioutil.ReadAll(jsonFile)
+			jsonBytes, err := io.ReadAll(jsonFile)
 			if err != nil {
 				return nil, fmt.Errorf("load ovs config file %s: error: %v", confFile, err)
 			}

pkg/sriov/cache.go

@@ -20,7 +20,6 @@ package sriov
 import (
 	"encoding/json"
 	"fmt"
-	"io/ioutil"
 	"os"
 	"path/filepath"
 	"strings"
@@ -59,7 +58,7 @@ func saveScratchConf(containerID, dataDir string, conf []byte) error {
 
 	path := filepath.Join(dataDir, containerID)
 
-	err := ioutil.WriteFile(path, conf, 0600)
+	err := os.WriteFile(path, conf, 0600)
 	if err != nil {
 		return fmt.Errorf("failed to write container data in the path(%q): %v", path, err)
 	}
@@ -68,7 +67,7 @@ func saveScratchConf(containerID, dataDir string, conf []byte) error {
 }
 
 func readScratchConf(cRefPath string) ([]byte, error) {
-	data, err := ioutil.ReadFile(cRefPath)
+	data, err := os.ReadFile(cRefPath)
 	if err != nil {
 		return nil, fmt.Errorf("failed to read container data in the path(%q): %v", cRefPath, err)
 	}

pkg/sriov/sriov.go

@@ -19,7 +19,6 @@ package sriov
 
 import (
 	"fmt"
-	"io/ioutil"
 	"os"
 	"path/filepath"
 
@@ -44,7 +43,7 @@ func GetVFLinkName(pciAddr string) (string, error) {
 		return "", err
 	}
 
-	fInfos, err := ioutil.ReadDir(vfDir)
+	fInfos, err := os.ReadDir(vfDir)
 	if err != nil {
 		return "", fmt.Errorf("failed to read net dir of the device %s: %v", pciAddr, err)
 	}