ENH: add automated Docker image builds

.github/workflows/ci-dev.yaml

@@ -3,7 +3,6 @@ on:
   pull_request:
     branches: ["main"]
   push:
-    branches: ["main"]
 
 jobs:
   ci:
@@ -29,3 +28,44 @@ jobs:
         name: 'Upload coverage'
         with:
           fail_ci_if_error: true
+
+  build-docker-image:
+#    needs: [coverage]
+    runs-on: ubuntu-latest
+    steps:
+      - name: Prepare tags
+        id: prep
+        env:
+          DOCKER_REPO: "quay.io/bokulichlab/q2-fondue"
+        run: |
+          echo $DOCKER_REPO
+          echo ${{ secrets.MY_LITTLE_SECRET }}
+          TAGS="${DOCKER_REPO}:${GITHUB_SHA::8}"
+          echo $TAGS
+          echo "tags=${TAGS}" >> $GITHUB_OUTPUT
+          echo "created=$(date -u +'%Y-%m-%dT%H:%M:%SZ')" >> $GITHUB_OUTPUT
+
+      - name: Print the latest tag
+        run: echo ${{ steps.prep.outputs.tags }}
+
+      - name: Set up QEMU
+        uses: docker/setup-qemu-action@master
+        with:
+          platforms: all
+
+      - name: Set up Docker Buildx
+        uses: docker/setup-buildx-action@v1
+
+      - name: Login to Quay Registry
+        if: github.event_name != 'pull_request'
+        uses: docker/login-action@v1
+        with:
+          username: ${{ secrets.DOCKER_USERNAME }}
+          password: ${{ secrets.DOCKER_PASSWORD }}
+
+      - name: Build and push Docker images
+        uses: docker/build-push-action@v2
+        with:
+          #push: ${{ github.event.pull_request.merged }}
+          push: true
+          tags: ${{ steps.prep.outputs.tags }}

Dockerfile

@@ -1,5 +1,7 @@
 FROM mambaorg/micromamba
+
 ARG MAMBA_DOCKERFILE_ACTIVATE=1
+
 RUN micromamba install -y -c https://packages.qiime2.org/qiime2/2023.7/tested/ \
 	-c conda-forge -c bioconda -c defaults \
 	q2cli q2-fondue