build and push nightly docker image

.gitea/workflows/release-nightly.yml

@@ -37,3 +37,41 @@ jobs:
           S3_BUCKET: ${{ secrets.AWS_BUCKET }}
           GPG_FINGERPRINT: ${{ steps.import_gpg.outputs.fingerprint }}
           GPGSIGN_PASSPHRASE: ${{ secrets.GPGSIGN_PASSPHRASE }}
+  release-image:
+    runs-on: ubuntu-latest
+    container:
+      image: catthehacker/ubuntu:act-latest
+    env:
+      DOCKER_ORG: gitea
+      DOCKER_LATEST: nightly
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v3
+        with:
+          fetch-depth: 0 # all history for all branches and tags
+
+      - name: Set up QEMU
+        uses: docker/setup-qemu-action@v2
+
+      - name: Set up Docker BuildX
+        uses: docker/setup-buildx-action@v2
+
+      - name: Login to DockerHub
+        uses: docker/login-action@v2
+        with:
+          username: ${{ secrets.DOCKER_USERNAME }}
+          password: ${{ secrets.DOCKER_PASSWORD }}
+
+      - name: Build and push
+        uses: docker/build-push-action@v4
+        env:
+          ACTIONS_RUNTIME_TOKEN: '' # See https://gitea.com/gitea/act_runner/issues/119
+        with:
+          context: .
+          file: ./Dockerfile
+          platforms: |
+            linux/amd64
+            linux/arm64
+          push: true
+          tags: |
+            gitea/tea:latest