build: fix mising commit sha and add proper ref

.github/workflows/publish.yaml

@@ -64,15 +64,15 @@ jobs:
         uses: docker/login-action@v1
         with:
           username: postfinance
-          password: ${{ secrets.DOCKER_TOKEN }}
+          password: ${{ secrets.DOCKERHUB_TOKEN }}
       - uses: imjasonh/[email protected]
         name: Setup ko
         env:
           KO_DOCKER_REPO: docker.io/postfinance
       - name: Run ko publish
         run: |
-          export TAG=$(echo ${{ github.ref }} | cut -d "/" -f 3 - ) 
-          export COMMIT=$(git describe --abbrev=7 --always  --long --match "v*" main)
+          export REF=${{ github.ref}}
+          export COMMIT=${{ github.sha}}
           ko publish ./cmd/kubelet-csr-approver/ --base-import-paths --platform=linux/amd64,linux/arm64,linux/arm --tags $TAG
       
   publish-untagged:
@@ -92,14 +92,15 @@ jobs:
         uses: docker/login-action@v1
         with:
           username: postfinance
-          password: ${{ secrets.DOCKER_TOKEN }}
+          password: ${{ secrets.DOCKERHUB_TOKEN }}
       - uses: imjasonh/[email protected]
         name: Setup ko
         env:
           KO_DOCKER_REPO: docker.io/postfinance
       - name: Run ko publish
         run: |
-          export COMMIT=$(git describe --abbrev=7 --always  --long --match "v*" main)
+          export REF=${{ github.ref}}
+          export COMMIT=${{ github.sha}}
           ko publish ./cmd/kubelet-csr-approver/ --base-import-paths --platform=linux/amd64,linux/arm64,linux/arm
           
           

.ko.yaml

@@ -5,4 +5,5 @@ builds:
   env:
   - CGO_ENABLED=0
   ldflags:
-  - -X main.commit={{.Env.COMMIT}}
+  - -X main.commit={{.Env.COMMIT}}
+  - -X main.ref={{.Env.REF}}

cmd/kubelet-csr-approver/main.go

@@ -26,6 +26,7 @@ const ProviderRegexEnvvarName string = "PROVIDER_REGEX"
 //nolint:gochecknoglobals //this vars are set on build by goreleaser
 var (
 	commit = "12345678"
+	ref    = "refs/refname"
 )
 
 func main() {
@@ -48,7 +49,7 @@ func main() {
 	flashLogger.SetLevel(zapcore.Level(logLevel))
 	z := zapr.NewLogger(flashLogger.Desugar())
 
-	z.V(0).Info("Kubelet-CSR-Approver controller starting.", "tag+commit", commit)
+	z.V(0).Info("Kubelet-CSR-Approver controller starting.", "commit", commit, "ref", ref)
 
 	var regexEnvVar string
 	if regexEnvVar = os.Getenv(ProviderRegexEnvvarName); regexEnvVar == "" {