Add version flag

Add the version flag using the go-commons code.

Signed-off-by: Joe Talerico <[email protected]>

Makefile

@@ -17,6 +17,18 @@ RHEL_VERSION = ubi9
 CONTAINER_BUILD ?= podman build --force-rm
 CONTAINER_NS ?= quay.io/cloud-bulldozer/netperf
 
+
+# k8s-netperf version
+GIT_COMMIT = $(shell git rev-parse HEAD)
+BUILD_DATE = $(shell date '+%Y-%m-%d-%H:%M:%S')
+CMD_VERSION= github.com/cloud-bulldozer/go-commons/version
+BRANCH := $(shell git rev-parse --abbrev-ref HEAD)
+ifeq ($(BRANCH),HEAD)
+	VERSION := $(shell git describe --tags --abbrev=0)
+else
+	VERSION := $(BRANCH)
+endif
+
 all: build container-build
 
 build: $(BIN_PATH)
@@ -41,4 +53,4 @@ clean: $(BIN_PATH)
 	rm -rf bin/$(ARCH)
 
 $(BIN_PATH): $(SOURCES)
-	GOARCH=$(ARCH) CGO_ENABLED=$(CGO) go build -v -o $(BIN_PATH) ./cmd/k8s-netperf
+	GOARCH=$(ARCH) CGO_ENABLED=$(CGO) go build -v -ldflags "-X $(CMD_VERSION).GitCommit=$(GIT_COMMIT) -X $(CMD_VERSION).BuildDate=$(BUILD_DATE) -X $(CMD_VERSION).Version=$(VERSION)" -o $(BIN_PATH) ./cmd/k8s-netperf

cmd/k8s-netperf/k8s-netperf.go

@@ -11,6 +11,7 @@ import (
 	"github.com/cloud-bulldozer/go-commons/indexers"
 	ocpmetadata "github.com/cloud-bulldozer/go-commons/ocp-metadata"
 	"github.com/cloud-bulldozer/go-commons/prometheus"
+	cmdVersion "github.com/cloud-bulldozer/go-commons/version"
 	"github.com/cloud-bulldozer/k8s-netperf/pkg/archive"
 	"github.com/cloud-bulldozer/k8s-netperf/pkg/config"
 	"github.com/cloud-bulldozer/k8s-netperf/pkg/iperf"
@@ -47,12 +48,21 @@ var (
 	showMetrics bool
 	tcpt        float64
 	json        bool
+	version     bool
 )
 
 var rootCmd = &cobra.Command{
 	Use:   "k8s-netperf",
 	Short: "A tool to run network performance tests in Kubernetes cluster",
 	Run: func(cmd *cobra.Command, args []string) {
+		if version {
+			fmt.Println("Version:", cmdVersion.Version)
+			fmt.Println("Git Commit:", cmdVersion.GitCommit)
+			fmt.Println("Build Date:", cmdVersion.BuildDate)
+			fmt.Println("Go Version:", cmdVersion.GoVersion)
+			fmt.Println("OS/Arch:", cmdVersion.OsArch)
+			os.Exit(0)
+		}
 
 		uid := ""
 		if len(id) > 0 {
@@ -481,6 +491,7 @@ func main() {
 	rootCmd.Flags().StringVar(&searchURL, "search", "", "OpenSearch URL, if you have auth, pass in the format of https://user:pass@url:port")
 	rootCmd.Flags().BoolVar(&showMetrics, "metrics", false, "Show all system metrics retrieved from prom")
 	rootCmd.Flags().Float64Var(&tcpt, "tcp-tolerance", 10, "Allowed %diff from hostNetwork to podNetwork, anything above tolerance will result in k8s-netperf exiting 1.")
+	rootCmd.Flags().BoolVar(&version, "version", false, "k8s-netperf version")
 
 	if err := rootCmd.Execute(); err != nil {
 		fmt.Println(err)