added docker-build workflow

.github/workflows/docker-build.yml

@@ -0,0 +1,44 @@
+name: Build and Push Docker Image to GHCR
+
+on:
+  release:
+    types: [published]
+  workflow_dispatch:
+
+permissions:
+  contents: read
+  packages: write
+
+jobs:
+  build_and_push:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout code
+        uses: actions/checkout@v3
+
+      - name: Set up Docker Buildx
+        uses: docker/setup-buildx-action@v2
+
+      - name: Log in to GHCR
+        uses: docker/login-action@v2
+        with:
+          registry: ghcr.io
+          username: ${{ github.actor }}
+          password: ${{ secrets.GITHUB_TOKEN }}
+
+      - name: Set Docker image tag
+        id: vars
+        run: |
+          if [ "${{ github.event_name }}" == "release" ]; then
+            echo "TAG=${{ github.event.release.tag_name }}" >> $GITHUB_ENV
+          else
+            echo "TAG=latest" >> $GITHUB_ENV
+          fi
+
+      - name: Build and push Docker image
+        uses: docker/build-push-action@v4
+        with:
+          context: .
+          file: ./docker/deployer/Dockerfile
+          push: true
+          tags: ghcr.io/${{ github.repository_owner }}/${{ github.event.repository.name }}:${{ env.TAG }}

docker/deployer/Dockerfile

@@ -15,7 +15,7 @@ RUN apt-get update && apt-get install -y --no-install-recommends \
     && rm -rf /var/lib/apt/lists/*
 
 ENV VIRTUAL_ENV=/app/kakarot/.venv \
-    PATH="/app/kakarot/.venv/bin:/root/.local/bin:$PATH"
+    PATH="/app/kakarot/.venv/bin:/root/.cargo/bin:/root/.local/bin:$PATH"
 
 RUN --mount=type=cache,target=/root/.cache \
     curl --proto '=https' --tlsv1.2 -sSf https://sh.rustup.rs | sh -s -- -y