1. The problem I’m having:
So I’m using the Reverse proxy in caddy to direct a custom domain with SSL using Caddy. The original site looks something like this:
The original site is hosted at page.example.com/dashboard1, page.example.com/dashboard2 and so on and if a user visits page.example.com (the root without /path), they’re automatically directed to www.example.com
And so with the caddy, I wish to accomplish Reverse proxy with SSL with the domain abc.firstdomain.com where abc.firstdomain.com directs to page.example.com/dashboard1 and xyz.seconddomain.com redirects to page.example.com/dashboard2
(Caddyfile attached below)
The SSL works successfully and is issued but for some strange reason, when abc.firstdomain.com is entered in the browser, instead of displaying contents from page.example.com/dashboard1, the page is redirected to www.example.com
Since I’m using a React JS app with React router configured as follows, is this an expected issue?
2. Error messages and/or full log output:
No errors but page redirects
3. Caddy version:
v2.6.2 h1:wKoFIxpmOJLGl3QXoo6PNbYvGW4xLEgo32GPBEjWL8o=
4. How I installed and ran Caddy:
I installed on EC2 using serverless:
#!/bin/bash -xe
sudo wget -O /usr/bin/caddy "https://github.com/tobilg/aws-caddy-build/raw/main/releases/aws_caddy_v2.6.2_linux"
sudo chmod +x /usr/bin/caddy
sudo groupadd --system caddy
sudo useradd --system --gid caddy --create-home --home-dir /var/lib/caddy --shell /usr/sbin/nologin --comment "Caddy web server" caddy
a. System environment:
Amazon 2 Linux
b. Command:
Command above
c. Service/unit/compose file:
See the commands above
d. My complete Caddy config:
{
debug
order rewrite after forward_auth
admin off
on_demand_tls {
ask {env.DOMAIN_SERVICE_ENDPOINT}
}
storage_clean_interval 90d
log
}
:80 {
respond /health "Im healthy" 200
log
}
:443 {
tls {env.EMAIL} {
on_demand
}
forward_auth {env.ENDPOINT} {
uri /?sourceHost={host}&extraUri={uri}
header_up Host {upstream_hostport}
copy_headers Pathroute Domainroute Domainhttpsroute
}
rewrite * {header.Pathroute}
try_files {path} /index.html
reverse_proxy {header.Domainroute}:443 {
header_up Host {http.reverse_proxy.upstream.host}
header_up User-Custom-Domain {host}
header_down Cache-Control max-age=5184000
health_timeout 5s
transport http {
tls
}
}
log
}
forward_auth endpoint file with hardcoded values for testing:
exports.handler = async (event) => {
let statusCode;
let pathRoute = '';
if (event.queryStringParameters && event.queryStringParameters.hasOwnProperty('sourceHost')) {
const extraUri = event.queryStringParameters.extraUri;
if(extraUri==='/' || !extraUri || extraUri===''){
pathRoute = '/dashboard1';
}
else{
pathRoute = extraUri
}
statusCode = 200;
} else {
statusCode = 400;
}
return {
headers: {
'Pathroute': pathRoute,
'Domainroute': 'page.example.com',
'Domainhttpsroute': 'https://page.example.com',
},
statusCode: 200,
};
};