Build image in GitHub Actions

.github/workflows/main.yml

@@ -0,0 +1,22 @@
+name: Build image
+
+on:
+  push:
+    branches: [ '*' ]
+  pull_request:
+    branches: [ master ]
+
+jobs:
+  build:
+    runs-on: macos-10.15 # Using macOS as https://github.com/actions/virtual-environments/issues/183
+    steps:
+      - uses: actions/checkout@v2
+      - name: Download base image
+        run: |
+          mkdir output-virtualbox-iso
+          wget --progress=dot:giga https://clovervm.ams3.digitaloceanspaces.com/base-focal.ova -O output-virtualbox-iso/clover-devel.ova
+      - name: Build
+        run: ./build.sh
+      - name: Upload
+        run: AWS_ACCESS_KEY_ID=${{secrets.S3_KEY}} AWS_SECRET_ACCESS_KEY=${{secrets.S3_SECRET_KEY}} aws s3 sync . s3://clovervm/ --acl public-read --endpoint-url https://ams3.digitaloceanspaces.com --no-progress
+        working-directory: output-virtualbox-ovf