use go 1.20 (#2149)

* use go 1.20

* remove rand seed

Author: zetaab

Dockerfile

@@ -14,15 +14,15 @@
 ##                               BUILD ARGS                                   ##
 ################################################################################
 # This build arg allows the specification of a custom Golang image.
-ARG GOLANG_IMAGE=golang:1.19.6
+ARG GOLANG_IMAGE=golang:1.20.1
 
 # The distroless image on which the CPI manager image is built.
 #
 # Please do not use "latest". Explicit tags should be used to provide
 # deterministic builds. Follow what kubernetes uses to build
 # kube-controller-manager, for example for 1.23.x:
 # https://github.com/kubernetes/kubernetes/blob/release-1.24/build/common.sh#L94
-ARG DISTROLESS_IMAGE=k8s.gcr.io/build-image/go-runner:v2.3.1-go1.19.6-bullseye.0
+ARG DISTROLESS_IMAGE=k8s.gcr.io/build-image/go-runner:v2.3.1-go1.20.1-bullseye.0
 
 # We use Alpine as the source for default CA certificates and some output
 # images

cmd/openstack-cloud-controller-manager/main.go

@@ -22,9 +22,7 @@ package main
 import (
 	goflag "flag"
 	"fmt"
-	"math/rand"
 	"os"
-	"time"
 
 	"github.com/spf13/pflag"
 	"k8s.io/apimachinery/pkg/util/wait"
@@ -44,8 +42,6 @@ import (
 )
 
 func main() {
-	rand.Seed(time.Now().UnixNano())
-
 	ccmOptions, err := options.NewCloudControllerManagerOptions()
 	if err != nil {
 		klog.Fatalf("unable to initialize command options: %v", err)

go.mod

@@ -1,6 +1,6 @@
 module k8s.io/cloud-provider-openstack
 
-go 1.19
+go 1.20
 
 replace github.com/onsi/ginkgo/v2 => github.com/onsi/ginkgo/v2 v2.4.0
 

tests/playbooks/roles/install-golang/defaults/main.yml

@@ -1,5 +1,5 @@
 ---
-go_version: '1.19'
+go_version: '1.20'
 arch: 'amd64'
 go_tarball: 'go{{ go_version }}.linux-{{ arch }}.tar.gz'
 go_download_location: 'https://go.dev/dl/{{ go_tarball }}'