wip: migrate to gh actions

.github/workflows/build.yml

@@ -0,0 +1,44 @@
+name: Create and publish a Docker image
+
+on:
+  push:
+    branches: ['main']
+  workflow_dispatch:
+
+env:
+  REGISTRY: ghcr.io
+
+jobs:
+  build-and-push-image:
+    strategy:
+        matrix:
+          image: [datalad-apptainer, deface, dicom_indexer, heudiconv]
+    runs-on: ubuntu-latest
+    permissions:
+      contents: read
+      packages: write
+
+    steps:
+      - name: Checkout repository
+        uses: actions/checkout@v4
+
+      - name: Log in to the Container registry
+        uses: docker/login-action@v3
+        with:
+          registry: ${{ env.REGISTRY }}
+          username: ${{ env.NIDATAOPS_BOT_NAME }}
+          password: ${{ secrets.NIDATAOPS_BOT_REGISTRY_TOKEN }}
+
+      - name: Extract metadata (tags, labels) for Docker
+        id: meta
+        uses: docker/metadata-action@v5
+        with:
+          images: ${{ env.REGISTRY }}/${{ env.GITHUB_REPOSITORY_OWNER }}.${{ matrix.image }}
+
+      - name: Build and push Docker image
+        uses: docker/build-push-action@v5
+        with:
+          context: docker/${{ matrix.image }}
+          push: true
+          tags: ${{ steps.meta.outputs.tags }}
+          labels: ${{ steps.meta.outputs.labels }}