V2 : help to set up a Yourls instance

nicolinux · March 20, 2020, 6:43am

1. My Caddy version (`caddy version`):

v2.0.0-beta.18 h1:N8CR8nO+n9Sk16CBx6ysVZWIZv0hgtU1J84st1bFWgI=

2. How I run Caddy:

a. System environment:

Ubuntu 18.04 on a public cloud instance from OVH.

b. Command:

I’m not sure what I’m supposed to put here…

c. Service/unit/compose file:

Standard caddy 2 service :

[Unit]
Description=Caddy Web Server
Documentation=https://caddyserver.com/docs/
After=network.target

[Service]
User=caddy
Group=caddy
ExecStart=/usr/local/bin/caddy run --config /etc/caddy/Caddyfile --adapter caddyfile --resume --environ
ExecReload=/usr/local/bin/caddy reload --config /etc/caddy/Caddyfile --adapter caddyfile
TimeoutStopSec=5s
LimitNOFILE=1048576
LimitNPROC=512
PrivateTmp=true
ProtectSystem=full
AmbientCapabilities=CAP_NET_BIND_SERVICE

[Install]
WantedBy=multi-user.target

d. My complete Caddyfile or JSON config:

{
    email email@email.com
}

(logs) {
    log {
        output file /var/log/caddy/access.log
    }    
}

(yourls) {
    php_fastcgi unix//run/php/php7.4-fpm-caddy.sock
    file_server 
    encode zstd gzip
    import logs

}

liens.macg.io {
    root * /var/www/yourls
    import yourls
}

liens2.macg.io {
    root * /var/www/yourls2
    import yourls
}

3. The problem I’m having:

I can’t manage to set up the url shortener service Yourls using Caddy 2.

Using the above configuration, I can access the admin interface fine, but the shorter links are all redirected to the administration rather than to their correct destination.

4. Error messages and/or full log output:

Access logs with the above configuration :

{"level":"info","ts":1584686119.7500317,"logger":"http.log.access.log0","msg":"handled request","request":{"method":"GET","uri":"/oTJuT","proto":"HTTP/2.0","remote_addr":"86.253.229.114:53180","host":"liens.macg.io","headers":{"Accept-Encoding":["gzip, deflate, br"],"Cookie":["yourls_20e6eb59858c3b25aed1109e5dd21ab1=abd9927d0100164f4263b438fff52fda; experimentation_subject_id=ImIyZjFmM2Y4LTU3OWItNDg2Yy1hYmU2LTFkZjQzNGMyNTE2MSI%3D--dbd7f97ae060fe4bfe8aa5ca427457726aeb76f4"],"Accept":["text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8"],"User-Agent":["Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_3) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/13.0.5 Safari/605.1.15"],"Accept-Language":["fr-fr"]},"tls":{"resumed":true,"version":772,"ciphersuite":4865,"proto":"h2","proto_mutual":true,"server_name":"liens.macg.io"}},"common_log":"86.253.229.114 - - [20/Mar/2020:07:35:19 +0100] \"GET /oTJuT HTTP/2.0\" 302 0","latency":0.006397828,"size":0,"status":302,"resp_headers":{"Server":["Caddy"],"Status":["302 Found"],"Location":["https://liens.macg.io/admin"],"Content-Type":["text/html; charset=UTF-8"]}}
{"level":"info","ts":1584686119.7500317,"logger":"http.log.access.log0","msg":"handled request","request":{"method":"GET","uri":"/oTJuT","proto":"HTTP/2.0","remote_addr":"86.253.229.114:53180","host":"liens.macg.io","headers":{"Cookie":["yourls_20e6eb59858c3b25aed1109e5dd21ab1=abd9927d0100164f4263b438fff52fda; experimentation_subject_id=ImIyZjFmM2Y4LTU3OWItNDg2Yy1hYmU2LTFkZjQzNGMyNTE2MSI%3D--dbd7f97ae060fe4bfe8aa5ca427457726aeb76f4"],"Accept":["text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8"],"User-Agent":["Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_3) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/13.0.5 Safari/605.1.15"],"Accept-Language":["fr-fr"],"Accept-Encoding":["gzip, deflate, br"]},"tls":{"resumed":true,"version":772,"ciphersuite":4865,"proto":"h2","proto_mutual":true,"server_name":"liens.macg.io"}},"common_log":"86.253.229.114 - - [20/Mar/2020:07:35:19 +0100] \"GET /oTJuT HTTP/2.0\" 302 0","latency":0.006397828,"size":0,"status":302,"resp_headers":{"Server":["Caddy"],"Status":["302 Found"],"Location":["https://liens.macg.io/admin"],"Content-Type":["text/html; charset=UTF-8"]}}
{"level":"info","ts":1584686119.7500317,"logger":"http.log.access.log0","msg":"handled request","request":{"method":"GET","uri":"/oTJuT","proto":"HTTP/2.0","remote_addr":"86.253.229.114:53180","host":"liens.macg.io","headers":{"User-Agent":["Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_3) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/13.0.5 Safari/605.1.15"],"Accept-Language":["fr-fr"],"Accept-Encoding":["gzip, deflate, br"],"Cookie":["yourls_20e6eb59858c3b25aed1109e5dd21ab1=abd9927d0100164f4263b438fff52fda; experimentation_subject_id=ImIyZjFmM2Y4LTU3OWItNDg2Yy1hYmU2LTFkZjQzNGMyNTE2MSI%3D--dbd7f97ae060fe4bfe8aa5ca427457726aeb76f4"],"Accept":["text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8"]},"tls":{"resumed":true,"version":772,"ciphersuite":4865,"proto":"h2","proto_mutual":true,"server_name":"liens.macg.io"}},"common_log":"86.253.229.114 - - [20/Mar/2020:07:35:19 +0100] \"GET /oTJuT HTTP/2.0\" 302 0","latency":0.006397828,"size":0,"status":302,"resp_headers":{"Server":["Caddy"],"Status":["302 Found"],"Location":["https://liens.macg.io/admin"],"Content-Type":["text/html; charset=UTF-8"]}}
{"level":"info","ts":1584686119.7908714,"logger":"http.log.access.log0","msg":"handled request","request":{"method":"GET","uri":"/admin","proto":"HTTP/2.0","remote_addr":"86.253.229.114:53180","host":"liens.macg.io","headers":{"Accept":["text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8"],"User-Agent":["Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_3) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/13.0.5 Safari/605.1.15"],"Accept-Language":["fr-fr"],"Accept-Encoding":["gzip, deflate, br"],"Cookie":["yourls_20e6eb59858c3b25aed1109e5dd21ab1=abd9927d0100164f4263b438fff52fda; experimentation_subject_id=ImIyZjFmM2Y4LTU3OWItNDg2Yy1hYmU2LTFkZjQzNGMyNTE2MSI%3D--dbd7f97ae060fe4bfe8aa5ca427457726aeb76f4"]},"tls":{"resumed":true,"version":772,"ciphersuite":4865,"proto":"h2","proto_mutual":true,"server_name":"liens.macg.io"}},"common_log":"86.253.229.114 - - [20/Mar/2020:07:35:19 +0100] \"GET /admin HTTP/2.0\" 308 0","latency":0.000216081,"size":0,"status":308,"resp_headers":{"Server":["Caddy"],"Location":["/admin/"],"Content-Type":[]}}
{"level":"info","ts":1584686119.7908714,"logger":"http.log.access.log0","msg":"handled request","request":{"method":"GET","uri":"/admin","proto":"HTTP/2.0","remote_addr":"86.253.229.114:53180","host":"liens.macg.io","headers":{"Accept":["text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8"],"User-Agent":["Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_3) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/13.0.5 Safari/605.1.15"],"Accept-Language":["fr-fr"],"Accept-Encoding":["gzip, deflate, br"],"Cookie":["yourls_20e6eb59858c3b25aed1109e5dd21ab1=abd9927d0100164f4263b438fff52fda; experimentation_subject_id=ImIyZjFmM2Y4LTU3OWItNDg2Yy1hYmU2LTFkZjQzNGMyNTE2MSI%3D--dbd7f97ae060fe4bfe8aa5ca427457726aeb76f4"]},"tls":{"resumed":true,"version":772,"ciphersuite":4865,"proto":"h2","proto_mutual":true,"server_name":"liens.macg.io"}},"common_log":"86.253.229.114 - - [20/Mar/2020:07:35:19 +0100] \"GET /admin HTTP/2.0\" 308 0","latency":0.000216081,"size":0,"status":308,"resp_headers":{"Content-Type":[],"Server":["Caddy"],"Location":["/admin/"]}}
{"level":"info","ts":1584686119.7908714,"logger":"http.log.access.log0","msg":"handled request","request":{"method":"GET","uri":"/admin","proto":"HTTP/2.0","remote_addr":"86.253.229.114:53180","host":"liens.macg.io","headers":{"Accept-Language":["fr-fr"],"Accept-Encoding":["gzip, deflate, br"],"Cookie":["yourls_20e6eb59858c3b25aed1109e5dd21ab1=abd9927d0100164f4263b438fff52fda; experimentation_subject_id=ImIyZjFmM2Y4LTU3OWItNDg2Yy1hYmU2LTFkZjQzNGMyNTE2MSI%3D--dbd7f97ae060fe4bfe8aa5ca427457726aeb76f4"],"Accept":["text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8"],"User-Agent":["Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_3) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/13.0.5 Safari/605.1.15"]},"tls":{"resumed":true,"version":772,"ciphersuite":4865,"proto":"h2","proto_mutual":true,"server_name":"liens.macg.io"}},"common_log":"86.253.229.114 - - [20/Mar/2020:07:35:19 +0100] \"GET /admin HTTP/2.0\" 308 0","latency":0.000216081,"size":0,"status":308,"resp_headers":{"Content-Type":[],"Server":["Caddy"],"Location":["/admin/"]}}
{"level":"info","ts":1584686119.8275764,"logger":"http.log.access.log0","msg":"handled request","request":{"method":"GET","uri":"/admin/","proto":"HTTP/2.0","remote_addr":"86.253.229.114:53180","host":"liens.macg.io","headers":{"Cookie":["yourls_20e6eb59858c3b25aed1109e5dd21ab1=abd9927d0100164f4263b438fff52fda; experimentation_subject_id=ImIyZjFmM2Y4LTU3OWItNDg2Yy1hYmU2LTFkZjQzNGMyNTE2MSI%3D--dbd7f97ae060fe4bfe8aa5ca427457726aeb76f4"],"Accept":["text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8"],"User-Agent":["Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_3) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/13.0.5 Safari/605.1.15"],"Accept-Language":["fr-fr"],"Accept-Encoding":["gzip, deflate, br"]},"tls":{"resumed":true,"version":772,"ciphersuite":4865,"proto":"h2","proto_mutual":true,"server_name":"liens.macg.io"}},"common_log":"86.253.229.114 - - [20/Mar/2020:07:35:19 +0100] \"GET /admin/ HTTP/2.0\" 200 7267","latency":0.01506835,"size":7267,"status":200,"resp_headers":{"Content-Type":["text/html; charset=utf-8"],"Expires":["Thu, 23 Mar 1972 07:00:00 GMT"],"Last-Modified":["Fri, 20 Mar 2020 06:35:19 GMT"],"Content-Encoding":["gzip"],"Vary":["Accept-Encoding"],"Server":["Caddy"],"Pragma":["no-cache"],"Set-Cookie":["yourls_20e6eb59858c3b25aed1109e5dd21ab1=abd9927d0100164f4263b438fff52fda; expires=Fri, 27-Mar-2020 06:35:19 GMT; Max-Age=604800; path=/; domain=liens.macg.io; secure; HttpOnly"],"Cache-Control":["no-cache, must-revalidate, max-age=0"]}}
{"level":"info","ts":1584686119.8275764,"logger":"http.log.access.log0","msg":"handled request","request":{"method":"GET","uri":"/admin/","proto":"HTTP/2.0","remote_addr":"86.253.229.114:53180","host":"liens.macg.io","headers":{"Accept":["text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8"],"User-Agent":["Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_3) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/13.0.5 Safari/605.1.15"],"Accept-Language":["fr-fr"],"Accept-Encoding":["gzip, deflate, br"],"Cookie":["yourls_20e6eb59858c3b25aed1109e5dd21ab1=abd9927d0100164f4263b438fff52fda; experimentation_subject_id=ImIyZjFmM2Y4LTU3OWItNDg2Yy1hYmU2LTFkZjQzNGMyNTE2MSI%3D--dbd7f97ae060fe4bfe8aa5ca427457726aeb76f4"]},"tls":{"resumed":true,"version":772,"ciphersuite":4865,"proto":"h2","proto_mutual":true,"server_name":"liens.macg.io"}},"common_log":"86.253.229.114 - - [20/Mar/2020:07:35:19 +0100] \"GET /admin/ HTTP/2.0\" 200 7267","latency":0.01506835,"size":7267,"status":200,"resp_headers":{"Set-Cookie":["yourls_20e6eb59858c3b25aed1109e5dd21ab1=abd9927d0100164f4263b438fff52fda; expires=Fri, 27-Mar-2020 06:35:19 GMT; Max-Age=604800; path=/; domain=liens.macg.io; secure; HttpOnly"],"Cache-Control":["no-cache, must-revalidate, max-age=0"],"Last-Modified":["Fri, 20 Mar 2020 06:35:19 GMT"],"Content-Encoding":["gzip"],"Vary":["Accept-Encoding"],"Server":["Caddy"],"Pragma":["no-cache"],"Content-Type":["text/html; charset=utf-8"],"Expires":["Thu, 23 Mar 1972 07:00:00 GMT"]}}
{"level":"info","ts":1584686119.8275764,"logger":"http.log.access.log0","msg":"handled request","request":{"method":"GET","uri":"/admin/","proto":"HTTP/2.0","remote_addr":"86.253.229.114:53180","host":"liens.macg.io","headers":{"Accept":["text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8"],"User-Agent":["Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_3) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/13.0.5 Safari/605.1.15"],"Accept-Language":["fr-fr"],"Accept-Encoding":["gzip, deflate, br"],"Cookie":["yourls_20e6eb59858c3b25aed1109e5dd21ab1=abd9927d0100164f4263b438fff52fda; experimentation_subject_id=ImIyZjFmM2Y4LTU3OWItNDg2Yy1hYmU2LTFkZjQzNGMyNTE2MSI%3D--dbd7f97ae060fe4bfe8aa5ca427457726aeb76f4"]},"tls":{"resumed":true,"version":772,"ciphersuite":4865,"proto":"h2","proto_mutual":true,"server_name":"liens.macg.io"}},"common_log":"86.253.229.114 - - [20/Mar/2020:07:35:19 +0100] \"GET /admin/ HTTP/2.0\" 200 7267","latency":0.01506835,"size":7267,"status":200,"resp_headers":{"Content-Encoding":["gzip"],"Vary":["Accept-Encoding"],"Server":["Caddy"],"Pragma":["no-cache"],"Content-Type":["text/html; charset=utf-8"],"Expires":["Thu, 23 Mar 1972 07:00:00 GMT"],"Last-Modified":["Fri, 20 Mar 2020 06:35:19 GMT"],"Set-Cookie":["yourls_20e6eb59858c3b25aed1109e5dd21ab1=abd9927d0100164f4263b438fff52fda; expires=Fri, 27-Mar-2020 06:35:19 GMT; Max-Age=604800; path=/; domain=liens.macg.io; secure; HttpOnly"],"Cache-Control":["no-cache, must-revalidate, max-age=0"]}}

5. What I already tried:

Here’s what I had for Caddy 1 :

(yourls) {
    log /var/log/caddy/yourls.access.log
    errors /var/log/caddy/yourls.error.log
    
    fastcgi / /var/run/php/php7.0-fpm.sock php 
    rewrite / {
        r (.*)
        to {uri} {uri}/ /yourls-loader.php?{query}
    }

    gzip

}

liens.macg.io {
    import yourls
    root /var/www/yourls
}

liens2.macg.io {
    import yourls
    root /var/www/yourls2
}

It worked perfectly then.

I tried to reproduce the rewrite from Caddy 1 which worked fine. Since it’s not possible to just reproduce it on Caddy 2, I guess I don’t know how to do this.

Here’s what I tried first :

(yourls) {
    php_fastcgi unix//run/php/php7.4-fpm-caddy.sock
    file_server 
    encode zstd gzip
    import logs
    try_files {path} {path}/ /yourls-loader.php?{query}&p={path}
}

Now, the links are correctly expanded, but the admin is inaccessible. It loops itself on a series of redirects and the admin is never displayed.

So I added this :

(yourls) {
    php_fastcgi unix//run/php/php7.4-fpm-caddy.sock
    file_server 
    encode zstd gzip
    import logs
    rewrite /admin/* /index.php?{query}&p={path}
    try_files {path} {path}/ /yourls-loader.php?{query}&p={path}
}

It was the same result.

6. Links to relevant resources:

Here’s the official recommended nginx configuration for Yourls : Nginx configuration · YOURLS/YOURLS Wiki · GitHub

Thanks for your help !

francislavoie · March 20, 2020, 3:21pm

Looks like yourls doesn’t use index.php as an entrypoint from what I gather.

See php_fastcgi (Caddyfile directive) — Caddy Documentation

You can try using this expanded syntax instead of php_fastcgi and modify the try_files directive to fit your needs

nicolinux · March 23, 2020, 7:14am

Thanks for your help, but I don’t understand what I’m supposed to do.

I tried this :

(yourls) {

    # Add trailing slash for directory requests
    @canonicalPath {
        file {
            try_files {path}/yourls-loader.php
        }
        not {
            path */
        }
    }
    redir @canonicalPath {path}/ 308

    # If the requested file does not exist, try index files
    try_files {path} {path}/index.php index.php

    # Proxy PHP files to the FastCGI responder
    @phpFiles {
        path *.php
    }
    reverse_proxy @phpFiles unix//run/php/php7.4-fpm-caddy.sock {
        transport fastcgi {
            split .php
        }
    }

    file_server 
    encode zstd gzip
    import logs
}

But is was exactly the same as with the try_files I tried earlier. The links were redirected, but the admin is not accessible. What should I do ?

I don’t want to go back to Caddy 1, but at least it worked perfectly there.

balloon · March 23, 2020, 8:37am

I searched Yourls and found the settings in Nginx:

  # Rewrites
  location / {
    try_files $uri $uri/ /yourls-loader.php$is_args$args;
  }

Caddy 2 also has try_files:

Therefore:

try_files {path} {path}/ /yourls-loader.php

or

try_files {path} {path}/ /yourls-loader.php?{query}

Similar to the setting in Caddyfile of Caddy v1

try_files {uri} {uri}/ /yourls-loader.php?{query}

Add this to the (yourls) of Caddyfile and see if it works as expected.

nicolinux · March 23, 2020, 8:45am

Yes, that’s what I tried, as explained in the first message…

nicolinux:

Here’s what I tried first :
(yourls) {
    php_fastcgi unix//run/php/php7.4-fpm-caddy.sock
    file_server 
    encode zstd gzip
    import logs
    try_files {path} {path}/ /yourls-loader.php?{query}&p={path}
}
Now, the links are correctly expanded, but the admin is inaccessible. It loops itself on a series of redirects and the admin is never displayed.

The links definitely need this try_files line, but the admin stops working completely when I use it.

balloon · March 23, 2020, 8:58am

You add &p={path} without understanding. What happens if delete it?

Note: If you test the transfer, the cache will remain. Use Incognito Window if you are using Chrome:

nicolinux · March 23, 2020, 9:02am

I tried both, and same result.

Capture d’écran 2020-03-23 à 10.01.29

Caddy logs confirm it keeps redirecting to the same URL on a loop.

balloon · March 23, 2020, 9:56am

Maybe it’s a bug in Caddy 2.
I’ve found that it ignores settings like try_files and references index.php.
Settings provided by @francislavoie are also ignored.

Edit: There was a Glitch link here but it was removed

php_fastcgi of Caddy 2 has the following specifications different from Caddy 1:

Run the specified PHP file if it exists
If not, run index.php

Yourls seems to be able to customize index.php

So, generate the following index.php:

<?php
$uri = $_SERVER['REQUEST_URI'];

if ( ( $uri != "/" ) &&
     ( $uri != "/index.php" ) )
{
    require "yourls-loader.php";

    exit;
}

// Describe index.php to be output after this

Delete rewrite and try_files from Caddyfile. What about this?

nicolinux · March 23, 2020, 10:13am

Yourls already has an index.php file :

<?php
/**
 * index.php from Redirect Index
 * https://github.com/tomslominski/yourls-redirect-index
 *
 * Make sure to copy this into the base directory of your YOURLS installation!
 */

// Start YOURLS engine
require_once( dirname(__FILE__) . '/includes/load-yourls.php' );

// Write URL to variable
$redir_url = yourls_get_option( 'redirindex_url' );

// Perform the redirect
if( ( yourls_is_active_plugin( 'yourls-redirect-index/plugin.php' ) || yourls_is_active_plugin( 'redirect-index/plugin.php' ) ) && !empty( $redir_url ) ) {
        Header( "Location: $redir_url" );
} else {
        echo '<h2>' . yourls__( 'YOURLS Redirect Index', 'redirindex' ) . '</h2>';
        echo '<p>' . yourls__( 'Have you enabled the plugin and set the redirect URL in the YOURLS admin panel? If you\'re having trouble, check out the <a href="https://github.com/tomslomi$
}

?>

If I delete the rewrite and try_files, the admin works again, but not the redirects for the links.

balloon · March 23, 2020, 10:17am

With admin working, put this above // Start YOURLS engine in index.php

$uri = $_SERVER['REQUEST_URI'];

if ( ( $uri != "/" ) &&
     ( $uri != "/index.php" ) )
{
    require "yourls-loader.php";

    exit;
}

nicolinux · March 23, 2020, 10:26am

OK, by adding that and deleting the rewrite and try_files, it works indeed !

Thanks for your help, but it’s not perfect either, I will have to manually edit this file at each YOURLS update. If it’s indeed a bug in Caddy 2, I hope it will be fixed.

balloon · March 23, 2020, 10:31am

I might add this to a Github issue, but I’d probably leave it to those who can judge this,
as they will see it.

francislavoie · March 23, 2020, 11:56am

Could you post your final Caddyfile? I’d like to see exactly what it looked like in the end.

francislavoie · March 23, 2020, 12:22pm

I think this might be the setup you need:

# Add trailing slash for directory requests
@canonicalPath {
	file {
		try_files {path}/index.php
	}
	not {
		path */
	}
}
redir @canonicalPath {path}/ 308

# If the requested file does not exist, try index files
try_files {path} {path}/index.php yourls-loader.php

# Proxy PHP files to the FastCGI responder
@phpFiles {
	path *.php
}
reverse_proxy @phpFiles unix//run/php/php7.4-fpm-caddy.sock {
	transport fastcgi {
		split .php
	}
}

The difference is the the try_files in the middle. This will still allow requests to admin/* and route those through admin/index.php.

Essentially the rule reads like this:

First check if the requested path exists as a directory on disk, and if it does has an index.php. If so, redirect to that directory with a trailing slash.
Next, check if the path exists on disk exactly. This is to handle any static assets like .js and .css files for example. If so, serves that (file_server is what serves that).
Next, check if the path is a directory with an index.php in it. If so, rewrites the path to the index.php in that directory (then reverse_proxy will serve this request because it matches path *.php).
Next, just rewrite anything else to yourls-loader.php (and also gets served through reverse_proxy for the same reason).

nicolinux · March 23, 2020, 12:27pm

Here it is right now :


(logs) {
    log {
        output file /var/log/caddy/access.log
    }    
}

# Configuration Liens
(yourls) {
    php_fastcgi unix//run/php/php7.4-fpm-caddy.sock
    file_server 
    encode zstd gzip
    import logs
}

liens.macg.io {
    root * /var/www/yourls
    import yourls
}

liens2.macg.io {
    root * /var/www/yourls2
    import yourls
}

nicolinux · March 23, 2020, 12:30pm

I’m pretty sure I tried this setup this morning, but it was broking both the admin and the redirection of links.

francislavoie · March 23, 2020, 12:32pm

What I wrote is different than what you wrote here:

Do my mind trying it again? Also don’t forget to rename or delete the index.php you added, to get it out of the way.

nicolinux · March 23, 2020, 12:44pm

OK you’re right, either I had not tried this setup, or tried it slightly differently. Anyway, you’re suggestion works, without editing the index.php file.

So, if you want to set up Caddy 2 for Yourls, here’s the correct Caddyfile you need :

domain.com {
    root * /var/www/yourls
    @canonicalPath {
        file {
            try_files {path}/index.php
        }
        not {
            path */
        }
    }
    redir @canonicalPath {path}/ 308

    # If the requested file does not exist, try index files
    try_files {path} {path}/index.php yourls-loader.php

    # Proxy PHP files to the FastCGI responder
    @phpFiles {
        path *.php
    }
    reverse_proxy @phpFiles unix//run/php/php7.4-fpm-caddy.sock {
        transport fastcgi {
            split .php
        }
    }

    file_server 
    encode zstd gzip
}

Thanks for your help.

EDIT : There is a simpler solution, if you’re using Caddy v2 beta 20 and above. Here’s what you need :

domain.com {
    root * /var/www/yourls
    route {
        try_files {path} {path}/index.php yourls-loader.php
        php_fastcgi unix//run/php/php7.4-fpm-caddy.sock
    }
    file_server 
    encode zstd gzip
}

francislavoie · March 23, 2020, 2:06pm

I was just thinking about this a bit more… I have another idea that might be much simpler, I’m curious if you could give it a shot real quick to verify.

route {
    try_files {path} {path}/index.php yourls-loader.php
    php_fastcgi unix//run/php/php7.4-fpm-caddy.sock
}

So, the route directive defines a block that is guaranteed to be executed in the order the contents are listed. What I think should happen with this config is that this will effectively override the try_files behaviour built into php_fastcgi by defaulting to yourls-loader.php instead of a non-existent index.php.

If this works for you, we’ll likely add this sort of example to the documentation as it’s starting to seem like a common pattern.

balloon · March 23, 2020, 2:43pm

This is because Glitch’s PHP uses a built-in server,
PHP behavior has priority over Caddy.
(If there is no file, the build-in server refers to index.php or index.html)
I should have done a Caddyfile investigation in another environment.