Added github actions for container build and push. (#41)

Author: pantierra

.github/workflows/ci.yml

@@ -88,3 +88,31 @@ jobs:
   #         rm -rf dist
   #         python -m build
   #         twine upload dist/*
+
+
+  publish-docker:
+    needs: [tests]
+    runs-on: ubuntu-latest
+    if: github.ref == 'refs/heads/main'
+
+    steps:
+      - name: checkout code
+        uses: actions/checkout@v4
+
+      - name: set up docker buildx
+        uses: docker/setup-buildx-action@v2
+
+      - name: log in to github container registry
+        uses: docker/login-action@v2
+        with:
+          registry: ghcr.io
+          username: ${{ github.actor }}
+          password: ${{ secrets.github_token }}
+
+      - name: build docker image
+        run: |
+          docker build -t ghcr.io/${{ github.repository }}:${{ github.sha }} .
+
+      - name: push docker image
+        run: |
+          docker push ghcr.io/${{ github.repository }}:${{ github.sha }}