ci: Add automated building of OVMF

Signed-off-by: Rob Bradford <robert.bradford@intel.com>

Author: rbradford

.github/workflows/release.yaml

@@ -0,0 +1,47 @@
+name: Cloud Hypervisor edk2 release
+on: [create,push]
+
+jobs:
+  build:
+    name: Build
+    runs-on: ubuntu-latest
+    steps:
+      - name: Code checkout
+        uses: actions/checkout@v2
+        with:
+          fetch-depth: 0
+      - name: Install dependencies
+        run: sudo apt-get update && sudo apt-get -y install uuid-dev nasm iasl build-essential python3-distutils git libbrotli-dev
+      - name: Init submodules
+        run: git submodule update --init
+      - name: Build OVMF
+        run: OvmfPkg/build.sh -a X64
+      - name: Create release
+        if: github.event_name == 'create' && github.event.ref_type == 'tag'
+        id: create_release
+        uses: actions/create-release@v1
+        env:
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+        with:
+          tag_name: ${{ github.ref }}
+          release_name: ${{ github.ref }}
+          draft: true
+      - name: Upload OVMF.fd
+        if: github.event_name == 'create' && github.event.ref_type == 'tag'
+        uses: actions/upload-release-asset@v1
+        env:
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+        with:
+          upload_url: ${{ steps.create_release.outputs.upload_url }}
+          asset_path: Build/OvmfX64/DEBUG_GCC5/FV/OVMF.fd
+          asset_name: OVMF.fd
+          asset_content_type: application/octet-stream
+
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