change to publish to github

.github/workflows/docker-image.yml

@@ -1,18 +1,28 @@
-name: Docker Image CI
-
+name: build and publish
 on:
   push:
-    branches: [ "master" ]
-  pull_request:
-    branches: [ "master" ]
-
+    branches: [master]
+  workflow_dispatch:
+  permissions:
+    content: read
+    packages: write
 jobs:
-
-  build:
-
+  docker:
     runs-on: ubuntu-latest
-
     steps:
-    - uses: actions/checkout@v3
-    - name: Build the Docker image
-      run: docker build . --file Dockerfile --tag cs2-modded-server:$(date +%s)
+      - name: Set up QEMU
+        uses: docker/setup-qemu-action@v2
+      - name: Set up Docker Buildx
+        uses: docker/setup-buildx-action@v2
+      - name: Login to DockerHub
+        uses: docker/login-action@v2
+        with:
+          registry: ghcr.io
+          username: ${{ github.actor }}
+          password: ${{ secrets.GITHUB_TOKEN }}
+      - name: Build and push
+        uses: docker/build-push-action@v4
+        with:
+          push: true
+          tags: ghcr.io/${{ github.repository }}:latest
+          platforms: linux/amd64,linux/arm64