nginx ci stuff

.forgejo/workflows/ingress-nginx.yaml

@@ -35,11 +35,7 @@ jobs:
         token: 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
         path: ingress-nginx-main
         github-server-url: https://github.com
-      - name: Build and push
-        uses: docker/build-push-action@v7
-        with:
-          push: true
-          file: Dockerfile
-          context: ./ingress-nginx-main
-          tags: git.martyn.berlin/martyn/ingress-nginx:main
-    
+      - name: build nginx image
+        run: |
+          export TAG=$(cat images/nginx/TAG)
+          cd ingress-nginx-main/images/nginx/rootfs && docker buildx build --platform=linux/amd64 --load -t git.martyn.berlin/ingress-nginx/nginx:${TAG} .