Update Release workflow to generate ghcr images

.github/workflows/build_and_publish.yaml

@@ -0,0 +1,69 @@
+name: build and publish
+on:
+  workflow_dispatch: {}
+  push:
+    tags: ["v*"]
+
+jobs:
+  build-and-publish:
+    runs-on: ubuntu-latest
+    steps:
+      - name: checkout the source code
+        uses: actions/checkout@v4
+
+      - uses: actions/setup-go@v5
+        with:
+          go-version: ^1.23
+
+      - name: cache go modules
+        uses: actions/cache@v4
+        with:
+          path: ~/go/pkg/mod
+          key: ${{ runner.os }}-go-${{ hashFiles('**/go.sum') }}
+          restore-keys: |
+            ${{ runner.os }}-go-
+
+      - uses: docker/login-action@v3
+        with:
+          registry: ghcr.io
+          username: ${{ github.actor }}
+          password: ${{ secrets.GITHUB_TOKEN }}
+
+      - uses: ko-build/setup-ko@v0.8
+
+      - name: build and push container images
+        run: ./hack/build.sh
+        env:
+          KO_PUSH: "true"
+          KO_DOCKER_REPO: "ghcr.io/${{ github.repository }}"
+
+      - name: generate a build timestamp and sha256sum files
+        run: |
+          cd builds
+          echo `date -u +'%Y%m%d%H%M%S'` > ./build_timestamp.txt  
+          echo `date -u +'%Y-%m-%dT%H:%M:%S%:z'` >> ./build_timestamp.txt
+          sha256sum *.yaml > ./SHA256SUMS.txt
+
+      - name: update release notes and executables
+        if: startsWith(github.ref, 'refs/tags/') # executes only for new release
+        uses: softprops/action-gh-release@v2
+        env:
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+        with:
+          files: |
+            builds/*.yaml
+            builds/build_timestamp.txt
+            builds/SHA256SUMS.txt
+
+      - name: Update executables for main branch changes
+        if: startsWith(github.ref, 'refs/heads/main') # executes only for changes in main
+        uses: "marvinpinto/action-automatic-releases@latest"
+        with:
+          repo_token: "${{ secrets.GITHUB_TOKEN }}"
+          automatic_release_tag: main-devel
+          prerelease: true
+          title: "Development Build - main branch"
+          files: |
+            builds/*.yaml
+            builds/build_timestamp.txt
+            builds/SHA256SUMS.txt

hack/build.sh

@@ -15,11 +15,10 @@ rm  -rf ${BUILDS_DIR}/*
 export PLATFORMS="linux/amd64,linux/s390x,linux/ppc64le,linux/arm64"
 
 # build and resolve the image details on manifests
-kustomize build config >  ${BUILDS_DIR}/release.txt
 ko resolve \
   --push=${KO_PUSH} \
   --platform=${PLATFORMS} \
-  --filename=${BUILDS_DIR}/release.txt \
+  --filename=config \
   --tags="v${VERSION}" \
   --base-import-paths \
   --sbom=none \