version and commit information now are printed at the startup

Signed-off-by: Batuhan Apaydın <batuhan.apaydin@trendyol.com>

.github/workflows/ci-only.yaml

@@ -21,6 +21,9 @@ jobs:
         id: local_build
         uses: docker/build-push-action@v2
         with:
+          build-args: |
+            Version=dev
+            GitCommit=${{ github.sha }}
           outputs: "type=docker,push=false"
           platforms: linux/amd64
           tags: ghcr.io/alexellis/registry-creds:${{ github.sha }}

.github/workflows/publish.yaml

@@ -29,6 +29,9 @@ jobs:
         id: local_build
         uses: docker/build-push-action@v2
         with:
+          build-args: |
+            Version=${{ steps.get_tag.outputs.TAG }}
+            GitCommit=${{ github.sha }}
           outputs: "type=registry,push=true"
           platforms: linux/amd64,linux/arm/v6,linux/arm64
           tags: |

Dockerfile

@@ -4,6 +4,8 @@ ARG TARGETPLATFORM
 ARG BUILDPLATFORM
 ARG TARGETOS
 ARG TARGETARCH
+ARG Version
+ARG GitCommit
 
 WORKDIR /workspace
 
@@ -18,8 +20,9 @@ COPY api/ api/
 COPY controllers/ controllers/
 
 # Build
+RUN echo flags=${Version} ${GitCommit}
 RUN CGO_ENABLED=0 GOOS=${TARGETOS} GOARCH=${TARGETARCH} \
-  GO111MODULE=on go build -ldflags="-w -s" -a -o /usr/bin/controller
+  GO111MODULE=on go build -ldflags "-s -w -X main.Release=${Version} -X main.SHA=${GitCommit}" -a -o /usr/bin/controller
 
 # Refer to https://github.com/GoogleContainerTools/distroless for more details
 FROM --platform=${BUILDPLATFORM:-linux/amd64} gcr.io/distroless/static:nonroot

main.go

@@ -1,7 +1,7 @@
 /*
 
 
-Licensed under the Apache License, Version 2.0 (the "License");
+Licensed under the Apache License, Release 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
 
@@ -36,6 +36,8 @@ import (
 var (
 	scheme   = runtime.NewScheme()
 	setupLog = ctrl.Log.WithName("setup")
+	Release  string
+	SHA      string
 )
 
 func init() {
@@ -113,7 +115,7 @@ func main() {
 	}
 	// +kubebuilder:scaffold:builder
 
-	setupLog.Info("starting manager")
+	setupLog.Info("starting manager with the version %s and commit %s", Release, SHA)
 	if err := mgr.Start(ctrl.SetupSignalHandler()); err != nil {
 		setupLog.Error(err, "problem running manager")
 		os.Exit(1)