Chained / Cascade Harbor Proxy not working

[fcoulloudon]

Hi All!

For practical reasons, we need to "chain" two harbor proxies. We work with servers in China and the link in red on the below picture is slow and expensive (through the great firewall) and the proxy in China (proxycache1) can't hit directly docker through the same red link.

However, when doing this, we can pull properly from one proxy cache and replace docker.io with proxycache.url/project (where project is the proxy cache project).

However, when chaining proxycaches, the url going to docker is adding projects from proxycache1 and proxycache2 and it doesn't work. I hope I'm clear on what I'm trying to explain.

Is this only a configuration issue? Or does the code need something to work with double/chained proxy?

Thanks!

Regards,

Francois

[fcoulloudon]

I guess it's related to this issue:
#20788

How complicated is it to make it work?

[bupd]

#20788 (comment)

This might include changing the replication logic of harbor.