adds workflows

.github/workflows/docker-build-and-push.yaml

@@ -0,0 +1,27 @@
+name: Docker build and push to ghcr
+
+on:
+  push:
+    branches:
+      - main
+
+jobs:
+  push-image:
+    runs-on: ubuntu-latest
+
+    steps:
+      - name: Checkout repository
+        uses: actions/checkout@v4
+
+      - name: Set up Docker Buildx
+        uses: docker/setup-buildx-action@v3
+
+      - name: Log in to GitHub Container Registry
+        uses: docker/login-action@v2
+        with:
+          registry: ghcr.io
+          username: ${{ secrets.GITHUB_ACTOR }}
+          password: ${{ secrets.GITHUB_TOKEN }}
+
+      - name: Push Docker image to GHCR
+        run: make docker-build docker-push

.github/workflows/docker-build-pr.yaml

@@ -0,0 +1,20 @@
+name: Docker Build on PR
+
+on:
+  pull_request:
+    branches-ignore:
+      - main
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+
+    steps:
+      - name: Checkout repository
+        uses: actions/checkout@v4
+
+      - name: Set up Docker Buildx
+        uses: docker/setup-buildx-action@v3
+
+      - name: Build Docker image
+        run: make docker-build