docker: Tag and push images to GHCR automatically

Co-authored-by: BrailleBennett <BrailleBennett@users.noreply.github.com>
Co-authored-by: TheSuperGamer20578 <TheSuperGamer20578@users.noreply.github.com>

.github/workflows/ci-docker.yml

@@ -5,6 +5,8 @@ on: [push, pull_request]
 jobs:
   build:
     runs-on: ubuntu-latest
+    permissions:
+      packages: write
     steps:
       - name: Checkout
         uses: actions/checkout@v4
@@ -14,12 +16,25 @@ jobs:
         uses: docker/setup-qemu-action@v3
       - name: Set up buildx
         uses: docker/setup-buildx-action@v3
+      - name: Login to ghcr.io
+        uses: docker/login-action@v3
+        with:
+          registry: ghcr.io
+          username: ${{ github.actor }}
+          password: ${{ secrets.GITHUB_TOKEN }}
+      - name: Generate version information
+        id: meta
+        uses: docker/metadata-action@v5
+        with:
+          images: ghcr.io/${{ github.repository }}
       - name: Build image
         uses: docker/build-push-action@v6
         with:
           context: .
           platforms: linux/amd64,linux/arm64,linux/arm/v7,windows/amd64
-          push: false
+          push: true
+          tags: ${{ steps.meta.outputs.tags }}
+          labels: ${{ steps.meta.outputs.labels }}
           pull: true
           cache-from: type=gha, scope=${{ github.workflow }}
           cache-to: type=gha, scope=${{ github.workflow }}