Create ghcr-publish.yml

Author: tosumitdhaka

.github/workflows/ghcr-publish.yml

@@ -0,0 +1,49 @@
+name: Build and Push to GHCR
+
+on:
+  push:
+    branches: [ "main" ]
+
+jobs:
+  build-and-push:
+    runs-on: ubuntu-latest
+    permissions:
+      contents: read
+      packages: write
+
+    strategy:
+      matrix:
+        include:
+          - name: backend
+            context: ./backend
+            dockerfile: ./backend/Dockerfile
+            image: ghcr.io/${{ github.repository_owner }}/trishul-snmp-backend
+          - name: frontend
+            context: ./frontend
+            dockerfile: ./frontend/Dockerfile
+            image: ghcr.io/${{ github.repository_owner }}/trishul-snmp-frontend
+
+    steps:
+      - uses: actions/checkout@v4
+
+      - name: Load .env into environment
+        run: |
+          grep -vE '^\s*#' .env | grep -vE '^\s*$' >> "$GITHUB_ENV"
+
+      - name: Login to GHCR
+        uses: docker/login-action@v3
+        with:
+          registry: ghcr.io
+          username: ${{ github.actor }}
+          password: ${{ secrets.GITHUB_TOKEN }}
+
+      - name: Build and push ${{ matrix.name }} image
+        uses: docker/build-push-action@v6
+        with:
+          context: ${{ matrix.context }}
+          file: ${{ matrix.dockerfile }}
+          push: true
+          tags: |
+            ${{ matrix.image }}:latest
+            ${{ matrix.image }}:${{ env.APP_VERSION }}
+