print versions

Dockerfile

@@ -1,6 +1,6 @@
 # Build the manager binary
 FROM quay.io/centos/centos:stream8 AS builder
-RUN yum install golang -y && yum clean all
+RUN yum install git golang -y && yum clean all
 
 # Ensure correct Go version
 ENV GO_VERSION=1.20
@@ -13,23 +13,25 @@ WORKDIR /workspace
 # Copy the Go Modules manifests
 COPY go.mod go.mod
 COPY go.sum go.sum
-# cache deps before building and copying source so that we don't need to re-download as much
-# and so that source changes don't invalidate our downloaded layer
-RUN go mod download
 
 # Copy the go source
+COPY vendor/ vendor/
+COPY version/ version/
 COPY main.go main.go
+COPY hack/ hack/
 COPY api/ api/
 COPY controllers/ controllers/
+# for getting version info
+COPY .git/ .git/
 COPY pkg/ pkg/
 COPY install/ install/
 # Build
-RUN CGO_ENABLED=0 GOOS=linux GOARCH=amd64 GO111MODULE=on go build -a -o manager main.go
+RUN ./hack/build.sh
 
 FROM registry.access.redhat.com/ubi8/ubi:latest
 
 WORKDIR /
 COPY --from=builder /workspace/install/ install/
-COPY --from=builder /workspace/manager .
+COPY --from=builder /workspace/bin/manager .
 
 ENTRYPOINT ["/manager"]

hack/build.sh

@@ -0,0 +1,16 @@
+#!/bin/bash
+set -ex
+
+GIT_VERSION=$(git describe --always --tags || true)
+VERSION=${CI_UPSTREAM_VERSION:-${GIT_VERSION}}
+GIT_COMMIT=$(git rev-list -1 HEAD || true)
+COMMIT=${CI_UPSTREAM_COMMIT:-${GIT_COMMIT}}
+BUILD_DATE=$(date --utc -Iseconds)
+
+mkdir -p bin
+
+LDFLAGS="-s -w "
+LDFLAGS+="-X github.com/medik8s/self-node-remediation/version.Version=${VERSION} "
+LDFLAGS+="-X github.com/medik8s/self-node-remediation/version.GitCommit=${COMMIT} "
+LDFLAGS+="-X github.com/medik8s/self-node-remediation/version.BuildDate=${BUILD_DATE} "
+GOFLAGS=-mod=vendor CGO_ENABLED=0 GOOS=linux GOARCH=amd64 go build -ldflags="${LDFLAGS}" -o bin/manager main.go

main.go

@@ -19,15 +19,17 @@ package main
 import (
 	"crypto/tls"
 	"flag"
+	"fmt"
 	"os"
 	"path/filepath"
+	"runtime"
 	"strconv"
 	"time"
 
 	"github.com/pkg/errors"
 	"go.uber.org/zap/zapcore"
 
-	"k8s.io/apimachinery/pkg/runtime"
+	pkgruntime "k8s.io/apimachinery/pkg/runtime"
 	utilruntime "k8s.io/apimachinery/pkg/util/runtime"
 	clientgoscheme "k8s.io/client-go/kubernetes/scheme"
 
@@ -53,6 +55,7 @@ import (
 	"github.com/medik8s/self-node-remediation/pkg/template"
 	"github.com/medik8s/self-node-remediation/pkg/utils"
 	"github.com/medik8s/self-node-remediation/pkg/watchdog"
+	"github.com/medik8s/self-node-remediation/version"
 	//+kubebuilder:scaffold:imports
 )
 
@@ -65,7 +68,7 @@ const (
 )
 
 var (
-	scheme   = runtime.NewScheme()
+	scheme   = pkgruntime.NewScheme()
 	setupLog = ctrl.Log.WithName("setup")
 )
 
@@ -101,6 +104,8 @@ func main() {
 
 	ctrl.SetLogger(zap.New(zap.UseFlagOptions(&opts)))
 
+	printVersion()
+
 	mgr, err := ctrl.NewManager(ctrl.GetConfigOrDie(), ctrl.Options{
 		Scheme: scheme,
 		// HEADS UP: once controller runtime is updated and this changes to metrics.Options{},
@@ -400,3 +405,11 @@ func configureWebhookServer(mgr ctrl.Manager, enableHTTP2 bool) {
 	}
 
 }
+
+func printVersion() {
+	setupLog.Info(fmt.Sprintf("Go Version: %s", runtime.Version()))
+	setupLog.Info(fmt.Sprintf("Go OS/Arch: %s/%s", runtime.GOOS, runtime.GOARCH))
+	setupLog.Info(fmt.Sprintf("Operator Version: %s", version.Version))
+	setupLog.Info(fmt.Sprintf("Git Commit: %s", version.GitCommit))
+	setupLog.Info(fmt.Sprintf("Build Date: %s", version.BuildDate))
+}

version/version.go

@@ -0,0 +1,10 @@
+package version
+
+var (
+	// Version is the operator version
+	Version = "0.0.1"
+	// GitCommit is the current git commit hash
+	GitCommit = "n/a"
+	// BuildDate is the build date
+	BuildDate = "n/a"
+)