Proxy a "regular" http connection to an "http proxy"ed one

[maxxer (Lorenzo Milesi)]

1. Caddy version:

v2.6.3 h1:QRVBNIqfpqZ1eJacY44I6eUC1OcxQ8D04EKImzpj7S8= (caddy-l4 actually)

2. How I installed, and run Caddy:

Temporary fetched with

$ xcaddy build --with github.com/mholt/caddy-l4

a. System environment:

Ubuntu 18.04.6

b. Command:

./caddy proxy.json

c. Service/unit/compose file:

none yet

d. My complete Caddy config:

none yet

3. The problem I’m having:

I need to proxy a “regular” http connection to a backend server, which is accessible only via an http proxy. I know this is not possible via standard caddy server, and I found this variation, which should manage this config, if I understand correctly.

Unfortunately, I cannot find additional documentation other than README, and I cannot read Go code, so at first I was wondering if this is actually possible.

4. Error messages and/or full log output:

none yet

5. What I already tried:

The closest sample config I found on the README is the IMAP ssl proxy example. But I don’t understand how to configure the upstream connection via proxy.

Using cURL, I have to connect this way:

curl -x 10.1.1.12:8080 https://destination.host.com

6. Links to relevant resources:

[WeidiDeng]

Hi @maxxer , thank you for using caddy.

Do you mean you want to reverse proxy to a website, and the reverse proxy will use the specified proxy, so remote website can be easily opened on your website?

Currently caddy-l4 can’t do it, it can only act as a socks proxy server, and we’re working to make reverse proxy to be able to use proxy environment variable here.

[maxxer (Lorenzo Milesi)]

Thank you for the reply. I’ll watch the issue and PR to test them. Thanks again