log submariner component's version on startup

Makefile

@@ -18,8 +18,12 @@ endif
 include $(SHIPYARD_DIR)/Makefile.inc
 
 TARGETS := $(shell ls -p scripts | grep -v -e /)
-export LDFLAGS = -X main.VERSION=$(VERSION)
-
+GIT_COMMIT_HASH := $(shell git show -s --format='format:%H')
+GIT_COMMIT_DATE := $(shell git show -s --format='format:%cI')
+VERSIONS_MODULE := github.com/submariner-io/submariner/pkg/versions
+export LDFLAGS = -X $(VERSIONS_MODULE).version=$(VERSION) \
+                 -X $(VERSIONS_MODULE).gitCommitHash=$(GIT_COMMIT_HASH) \
+                 -X $(VERSIONS_MODULE).gitCommitDate=$(GIT_COMMIT_DATE)
 ifneq (,$(filter external-net,$(_using)))
 export TESTDIR = test/external
 override export PLUGIN = scripts/e2e/external/hook

main.go

@@ -53,6 +53,7 @@ import (
 	"github.com/submariner-io/submariner/pkg/natdiscovery"
 	"github.com/submariner-io/submariner/pkg/pod"
 	"github.com/submariner-io/submariner/pkg/types"
+	"github.com/submariner-io/submariner/pkg/versions"
 	corev1 "k8s.io/api/core/v1"
 	utilruntime "k8s.io/apimachinery/pkg/util/runtime"
 	"k8s.io/client-go/kubernetes"
@@ -104,7 +105,6 @@ const (
 )
 
 var (
-	VERSION            = "not-compiled-properly"
 	logger             = log.Logger{Logger: logf.Log.WithName("main")}
 	lastBadCertificate atomic.Value
 )
@@ -114,6 +114,8 @@ func main() {
 	flag.Parse()
 	kzerolog.InitK8sLogging()
 
+	versions.Log(&logger)
+
 	logger.Info("Starting the submariner gateway engine")
 
 	components := &componentsType{
@@ -185,7 +187,7 @@ func main() {
 	components.cableEngineSyncer = syncer.NewGatewaySyncer(
 		components.cableEngine,
 		submarinerClient.SubmarinerV1().Gateways(components.submSpec.Namespace),
-		VERSION, components.cableHealthChecker)
+		versions.Submariner(), components.cableHealthChecker)
 
 	if components.submSpec.Uninstall {
 		logger.Info("Uninstalling the submariner gateway engine")

pkg/globalnet/main.go

@@ -35,6 +35,7 @@ import (
 	"github.com/submariner-io/submariner/pkg/cidr"
 	submarinerClientset "github.com/submariner-io/submariner/pkg/client/clientset/versioned"
 	"github.com/submariner-io/submariner/pkg/globalnet/controllers"
+	"github.com/submariner-io/submariner/pkg/versions"
 	metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
 	"k8s.io/client-go/kubernetes/scheme"
 	"k8s.io/client-go/tools/clientcmd"
@@ -54,6 +55,8 @@ func main() {
 	flag.Parse()
 	kzerolog.InitK8sLogging()
 
+	versions.Log(&logger)
+
 	var spec controllers.Specification
 
 	err := envconfig.Process("submariner", &spec)

pkg/networkplugin-syncer/main.go

@@ -31,6 +31,7 @@ import (
 	eventlogger "github.com/submariner-io/submariner/pkg/event/logger"
 	"github.com/submariner-io/submariner/pkg/networkplugin-syncer/handlers/ovn"
 	"github.com/submariner-io/submariner/pkg/routeagent_driver/environment"
+	"github.com/submariner-io/submariner/pkg/versions"
 	"k8s.io/client-go/kubernetes"
 	"k8s.io/client-go/rest"
 	"k8s.io/client-go/tools/clientcmd"
@@ -49,6 +50,8 @@ func main() {
 	flag.Parse()
 	kzerolog.InitK8sLogging()
 
+	versions.Log(&logger)
+
 	logger.Info("Starting submariner-networkplugin-syncer")
 	// set up signals so we handle the first shutdown signal gracefully
 	stopCh := signals.SetupSignalHandler().Done()

pkg/routeagent_driver/main.go

@@ -42,6 +42,7 @@ import (
 	"github.com/submariner-io/submariner/pkg/routeagent_driver/handlers/kubeproxy"
 	"github.com/submariner-io/submariner/pkg/routeagent_driver/handlers/mtu"
 	"github.com/submariner-io/submariner/pkg/routeagent_driver/handlers/ovn"
+	"github.com/submariner-io/submariner/pkg/versions"
 	"k8s.io/client-go/kubernetes"
 	"k8s.io/client-go/tools/clientcmd"
 	logf "sigs.k8s.io/controller-runtime/pkg/log"
@@ -59,6 +60,8 @@ func main() {
 	flag.Parse()
 	kzerolog.InitK8sLogging()
 
+	versions.Log(&logger)
+
 	logger.Info("Starting submariner-route-agent using the event framework")
 	// set up signals so we handle the first shutdown signal gracefully
 	stopCh := signals.SetupSignalHandler().Done()

pkg/versions/version.go

@@ -0,0 +1,45 @@
+/*
+SPDX-License-Identifier: Apache-2.0
+
+Copyright Contributors to the Submariner project.
+
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+
+http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.
+*/
+
+package versions
+
+import (
+	"fmt"
+	"runtime"
+
+	"github.com/submariner-io/admiral/pkg/log"
+)
+
+var (
+	version       = "devel"
+	gitCommitHash string
+	gitCommitDate string
+)
+
+func Log(logger *log.Logger) {
+	logger.Info(fmt.Sprintf("Go Version: %s", runtime.Version()))
+	logger.Info(fmt.Sprintf("Go Arch: %s", runtime.GOARCH))
+	logger.Info(fmt.Sprintf("Git Commit Hash: %s", gitCommitHash))
+	logger.Info(fmt.Sprintf("Git Commit Date: %s", gitCommitDate))
+	logger.Info(fmt.Sprintf("Submariner Version: %s", version))
+}
+
+// Submariner returns the version info of submariner.
+func Submariner() string {
+	return version
+}