Create pr-docker-build.yml

.github/pr-docker-build.yml

@@ -0,0 +1,30 @@
+name: Build and Publish PR Docker Image
+
+on:
+  pull_request:
+    types: [opened, synchronize]
+
+jobs:
+  build-and-publish:
+    runs-on: ubuntu-latest
+
+    steps:
+      - name: Checkout code
+        uses: actions/checkout@v4
+
+      - name: Log in to GitHub Container Registry
+        uses: docker/login-action@v3
+        with:
+          registry: ghcr.io
+          username: ${{ github.actor }}
+          password: ${{ github.token }}
+
+      - name: Set image tag
+        id: vars
+        run: echo "IMAGE_TAG=ghcr.io/gitroomhq/postiz-app-pr:${{ github.event.pull_request.number }}" >> $GITHUB_ENV
+
+      - name: Build Docker image from Dockerfile.dev
+        run: docker build -f Dockerfile.dev -t $IMAGE_TAG .
+
+      - name: Push Docker image to GHCR
+        run: docker push $IMAGE_TAG