Trigger build, tag, and publication of porter docker image due to git…

… tagging.

.github/workflows/docker.yml

@@ -0,0 +1,34 @@
+name: Build and Push Docker Image (version tags)
+
+on:
+  push:
+    tags:
+      - 'v[0-9]+.[0-9]+.[0-9]+-*'
+
+jobs:
+  docker:
+    runs-on: ubuntu-latest
+
+    steps:
+      - name: Checkout repo
+        uses: actions/checkout@v4
+
+      - name: Set up Docker Buildx
+        uses: docker/setup-buildx-action@v3
+
+      - name: Login to Docker Hub
+        uses: docker/login-action@v3
+        with:
+          username: ${{ secrets.DOCKERHUB_USERNAME }}
+          password: ${{ secrets.DOCKERHUB_TOKEN }}
+
+      - name: Display Tag Name
+        run: echo "Tag - ${{github.ref_name}}"
+
+      - name: Build and push Docker image
+        uses: docker/build-push-action@v5
+        with:
+          context: ${{ github.workspace }}
+          file: ./deploy/docker/Dockerfile
+          push: true
+          tags: nucypher/porter:${{github.ref_name}}