feat: Add version flag (#106)

Author: jimmidyson

.goreleaser.yml

@@ -33,6 +33,13 @@ builds:
     ldflags:
       - -s
       - -w
+      - -X 'k8s.io/component-base/version.buildDate={{ .CommitDate }}'
+      - -X 'k8s.io/component-base/version.gitCommit={{ .FullCommit }}'
+      - -X 'k8s.io/component-base/version.gitTreeState={{ .Env.GIT_TREE_STATE }}'
+      - -X 'k8s.io/component-base/version.gitVersion=v{{ trimprefix .Version "v" }}'
+      - -X 'k8s.io/component-base/version.major={{ .Major }}'
+      - -X 'k8s.io/component-base/version.minor={{ .Minor }}'
+      - -X 'k8s.io/component-base/version/verflag.programName={{ .ProjectName }}'
     goos:
       - linux
     goarch:

cmd/capi-runtime-extensions/main.go

@@ -14,6 +14,7 @@ import (
 	cliflag "k8s.io/component-base/cli/flag"
 	"k8s.io/component-base/logs"
 	logsv1 "k8s.io/component-base/logs/api/v1"
+	"k8s.io/component-base/version/verflag"
 	"k8s.io/klog/v2"
 	ctrl "sigs.k8s.io/controller-runtime"
 
@@ -53,6 +54,8 @@ func main() {
 	pflag.CommandLine.AddGoFlagSet(flag.CommandLine)
 	pflag.Parse()
 
+	verflag.PrintAndExitIfRequested()
+
 	// Validates logs flags using Kubernetes component-base machinery and applies them
 	if err := logsv1.ValidateAndApply(logOptions, nil); err != nil {
 		setupLog.Error(err, "unable to start extension")