fix pipeline

.github/workflows/build.yml

@@ -7,11 +7,22 @@ on:
     types: [ published ]
 jobs:
     docker:
+        permissions: write-all
         runs-on: ubuntu-latest
         steps:
+          -
+            name: Login to GitHub Container Registry
+            uses: docker/login-action@v2
+            with:
+              registry: ghcr.io
+              username: ${{ github.repository_owner }}
+              password: ${{ github.token }}
           -
               name: Build and push
               uses: docker/build-push-action@v4
               with:
                   push: true
-                tags: user/app:latest
+                  platforms: linux/amd64
+                  tags: |
+                    ghcr.io/${{ github.repository }}:latest
+                    ghcr.io/${{ github.repository }}:${{ github.ref_name }}