Add OTEL build test and for NGINX v1.25 (#10889)

* Add OTEL build test

* Simplify otel compilation

* Remove http2 deprecated arg

* Move image build to CI

* Turn image from scratch to optimize usage

* rollback image from scratch

* Final reviews on nginx v1.25 image

* Remove s390x from final image

.github/workflows/images.yaml

@@ -36,6 +36,8 @@ jobs:
       kube-webhook-certgen: ${{ steps.filter.outputs.kube-webhook-certgen }}
       ext-auth-example-authsvc: ${{ steps.filter.outputs.ext-auth-example-authsvc }}
       nginx: ${{ steps.filter.outputs.nginx }}
+      nginx125: ${{ steps.filter.outputs.nginx125 }}
+      opentelemetry: ${{ steps.filter.outputs.opentelemetry }}
 
     steps:
       - name: Checkout
@@ -63,6 +65,10 @@ jobs:
               - 'images/ext-auth-example-authsvc/**'
             nginx:
               - 'images/nginx/**'
+            opentelemetry:
+              - 'images/opentelemetry/**'
+            nginx125:
+              - 'images/nginx-1.25/TAG'
  
   #### TODO: Make the below jobs 'less dumb' and use the job name as parameter (the github.job context does not work here)
   cfssl:
@@ -179,3 +185,53 @@ jobs:
       uses: github/codeql-action/upload-sarif@v3.23.1
       with:
         sarif_file: 'trivy-results.sarif'
+
+  opentelemetry:
+    runs-on: ubuntu-latest
+    env:
+      PLATFORMS: linux/amd64,linux/arm,linux/arm64
+    needs: changes
+    if: |
+      (needs.changes.outputs.opentelemetry == 'true')
+    strategy:
+      matrix:
+        nginx: ['1.25.3', '1.21.6']
+    steps:
+    - name: Checkout
+      uses: actions/checkout@b4ffde65f46336ab88eb53be808477a3936bae11 # v4.1.1
+    - name: image build
+      run: |
+        cd images/opentelemetry && make NGINX_VERSION=${{ matrix.nginx }} build
+
+  nginx125:
+    permissions:
+      contents: write
+      packages: write
+    runs-on: ubuntu-latest
+    needs: changes
+    if: |
+      (github.event_name == 'push' && github.ref == 'refs/heads/main' && needs.changes.outputs.nginx125 == 'true')
+    env:
+      PLATFORMS: linux/amd64,linux/arm,linux/arm64
+    steps:
+      - name: Checkout
+        uses: actions/checkout@b4ffde65f46336ab88eb53be808477a3936bae11 # v4.1.1
+      - name: Set up QEMU
+        uses: docker/setup-qemu-action@68827325e0b33c7199eb31dd4e31fbe9023e06e3 # v3.0.0
+      - name: Set up Docker Buildx
+        id: buildx
+        uses: docker/setup-buildx-action@f95db51fddba0c2d1ec667646a06c2ce06100226 # v3.0.0
+        with:
+          version: latest
+          platforms: ${{ env.PLATFORMS }}
+      - name: Login to GitHub Container Registry
+        uses: docker/login-action@343f7c4344506bcbf9b4de18042ae17996df046d # v3.0.0
+        with:
+          username: ${{ secrets.DOCKERHUB_USERNAME }}
+          password: ${{ secrets.DOCKERHUB_TOKEN }}
+      - name: build-image
+        run: |
+          export TAG=$(cat images/nginx-1.25/TAG)
+          cd images/nginx-1.25/rootfs && docker buildx build --platform=${{ env.PLATFORMS }} --push --load -t ingressnginx/nginx-1.25:${TAG} .
+    
+