first effort

.gitea/workflows/release-image.yaml

@@ -0,0 +1,17 @@
+on: [push]
+
+name: Continuous Releases
+
+env:
+  IMAGE_TAG: ci-rust-img
+  UBUNTU_VERSION: latest
+
+jobs:
+  publish_image:
+    name: build
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+        with:
+          fetch-depth: 0
+      - run: docker build . -t ${{ env.IMAGE_TAG }} --build-arg UBUNTU_VERSION=${{ UBUNTU_VERSION }}