Add: upload 3rd gen into greenbone registry

.github/workflows/helm-container-build-push-3rd-gen.yml

@@ -93,6 +93,7 @@ jobs:
     steps:
       - name: Checkout repository
         uses: actions/checkout@v4
+
       - name: Container build and push 3rd gen
         id: build-and-push
         uses: greenbone/actions/container-build-push-generic@v3
@@ -121,6 +122,83 @@ jobs:
           scout-user: ${{ contains(inputs.scout, 'true') && secrets.DOCKERHUB_USERNAME || '' }}
           scout-password: ${{ contains(inputs.scout, 'true') && secrets.DOCKERHUB_TOKEN || '' }}
 
+  building-container-greenbone-reg:
+    if: (inputs.helm-chart) && (startsWith(github.ref, 'refs/tags/v'))
+    runs-on: self-hosted-generic
+    outputs:
+      digest: ${{ steps.build-and-push.outputs.digest }}
+    steps:
+      - name: Checkout repository
+        uses: actions/checkout@v4
+
+      # Unfortunately we have to format the URL here because in many repos multiple images are built with static URLs.
+      # Later we can also use this step to distribute the images into different OCI projects
+      - name: Create image url
+        id: image-url
+        shell: bash
+        run: |
+          if ${{ github.ref_name }} | grep -Eq "alpha|rc"; then
+            url="opensight-dev/$(basename ${{ inputs.image-url }})"
+          else
+            case "${{ inputs.image-url }}" in
+              *"asset-management"*)
+                url="opensight-asset/$(basename ${{ inputs.image-url }})"
+                ;;
+              *"vulnerability-intelligence"*)
+                url="opensight-lookout/$(basename ${{ inputs.image-url }})"
+                ;;
+              *"scan-management"*)
+                url="opensight-appliance/$(basename ${{ inputs.image-url }})"
+                ;;
+              *"opensight-postgres"*)
+                url="opensight/$(basename ${{ inputs.image-url }})"
+                ;;
+              *"opensight-keycloak"*)
+                url="opensight/$(basename ${{ inputs.image-url }})"
+                ;;
+              *"opensight-ingress"*)
+                url="opensight/$(basename ${{ inputs.image-url }})"
+                ;;
+              *"opensight-opensearch"*)
+                url="opensight/$(basename ${{ inputs.image-url }})"
+                ;;
+              *"opensight-notification-service"*)
+                url="opensight/$(basename ${{ inputs.image-url }})"
+                ;;
+              *)
+                echo "no supported service in ${{ inputs.image-url }}"
+                exit 1
+                ;;
+              # Follow pattern for all 3rd gen products
+            esac
+          fi
+          echo "url=$url" >> $GITHUB_OUTPUT
+
+      - name: Container build and push 3rd gen to additional url
+        id: build-and-push-additional
+        uses: greenbone/actions/container-build-push-generic@v3
+        with:
+          build-context: ${{ inputs.build-context }}
+          build-docker-file: ${{ inputs.build-docker-file }}
+          build-args: ${{ inputs.build-args }}
+          build-secrets: ${{ contains(inputs.build-secret-greenbonebot, 'true') && format('GREENBONE_BOT_PACKAGES_READ_TOKEN={0}', secrets.GREENBONE_BOT_PACKAGES_READ_TOKEN) || inputs.build-secrets }}
+          cosign-key: ${{ secrets.COSIGN_KEY_OPENSIGHT }}
+          cosign-key-password: ${{ secrets.COSIGN_KEY_PASSWORD_OPENSIGHT }}
+          # The tlog function does not currently support an ed25519 key.
+          cosign-tlog-upload: "false"
+          image-url: ${{ steps.image-url.outputs.url }}
+          image-labels: ${{ inputs.image-labels }}
+          image-tags: |
+            # create container tag for git tags
+            type=ref,event=tag,value=latest
+            type=match,pattern=v(.*),group=1
+            type=ref,event=pr
+            # use unstable for main branch
+            type=raw,value=unstable,enable={{is_default_branch}}
+          registry: ${{ secrets.GREENBONE_REGISTRY }}
+          registry-username: ${{ secrets.GREENBONE_REGISTRY_USER }}
+          registry-password: ${{ secrets.GREENBONE_REGISTRY_TOKEN }}
+
   building-service-chart:
     if: (inputs.helm-chart) && (startsWith(github.ref, 'refs/tags/v'))
     needs: