If you're looking for proxy for helm, maybe you can try cloudflare-helm-proxy.

1. fork this project
2. modify the link of the above button to your fork url
3. click the button, you will be redirected to the deploy page

1. use cloudflare worker host: only support proxy one registry

   const routes = {
     "${workername}.${username}.workers.dev/": "https://registry-1.docker.io",
   };

2. use custom domain: support proxy multiple registries route by host
   • host your domain DNS on cloudflare
   • add A record of xxx.example.com to 192.0.2.1
   • deploy this project to cloudflare workers
   • add xxx.example.com/* to HTTP routes of workers
   • add more records and modify the config as you need

   const routes = {
     "docker.libcuda.so": "https://registry-1.docker.io",
     "quay.libcuda.so": "https://quay.io",
     "gcr.libcuda.so": "https://k8s.gcr.io",
     "k8s-gcr.libcuda.so": "https://k8s.gcr.io",
     "ghcr.libcuda.so": "https://ghcr.io",
   };