How to add multiple reverse proxies via API and not using Caddyfile?

Help
1

1. Caddy version (caddy version):

v2.0.0

2. How I run Caddy:

caddy run

a. System environment:

Ubuntu 20.04

3. My question

I can have a server with multiple domains using such a Caddyfile (+ https with letsencrypt):

site1.com {
  reverse_proxy localhost:3001
}

site2.com {
  reverse_proxy localhost:3002

site3.com {
  reverse_proxy localhost:3003
}

But I want to run caddy without Caddyfile and I want to add such proxies dinamically via admin API.

Caddy has API for it, but I can’t understand how to add a new reverse proxy for a caddy without Caddyfile at all.

I’m looking for a JSON format of this request, it can be something like this (fake request):

curl localhost:2019/load \
    -X POST \
    -H "Content-Type: application/json" \
    -data "{'domain': 'site1.com', 'tls': 'yes', 'proxy': 'http://localhost:3001'}"

curl localhost:2019/load \
    -X POST \
    -H "Content-Type: application/json" \
    -data "{'domain': 'site2.com', 'tls': 'yes', 'proxy': 'http://localhost:3002'}"

Is it possible to add reverse proxies via API only?

2

Yes, you can definitely do this. I think you need to read about the structure of the JSON config:

You can also use the caddy adapt command to take your Caddyfile and see its JSON representation as a starting point.

3

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