1. Caddy version (caddy version):
v2.4.3 h1:Y1FaV2N4WO3rBqxSYA8UZsZTQdN+PwcoOcAiZTM8C0I=
2. How I run Caddy:
Installed from package manager, configuration located in Caddyfile. Running from systemctl start/stop. Launch commands and its options are default.
a. System environment:
Debian GNU/Linux 10 (buster) x86_64
3GB RAM
Generic VPS installation. Caddy is installed with PHP-FPM (7.3), and Redis as database. No docker etc.
b. Command:
systemctl restart caddy
c. Service/unit/compose file:
None.
d. My complete Caddyfile or JSON config:
{
auto_https off
servers {
timeouts {
read_body 5s
read_header 5s
idle 15s
}
}
}
:80 {
root * /var/www/html
encode gzip
file_server
try_files {path}.php {path}
route {
@canonicalPath {
file {path}/index.php
not path */
}
redir @canonicalPath {path}/ 308
@indexFiles file {
try_files {path} {path}/index.php
split_path .php
}
rewrite @indexFiles {http.matchers.file.relative}
@phpFiles path *.php
reverse_proxy @phpFiles unix//run/php/php7.3-fpm.sock {
transport fastcgi {
split .php
}
}
}
handle_errors {
respond "{http.error.status_code} {http.error.status_text}"
}
header Server Nginx
log {
output file /var/log/access.log
}
}
3. The problem I’m having:
Service starts hanging, checking process status shows this output:
● php7.3-fpm.service - The PHP 7.3 FastCGI Process Manager
Loaded: loaded (/lib/systemd/system/php7.3-fpm.service; enabled; vendor preset: enabled)
Drop-In: /run/systemd/system/php7.3-fpm.service.d
└─zzz-lxc-service.conf
Active: active (running) since Mon 2021-08-23 12:01:47 UTC; 13min ago
Docs: man:php-fpm7.3(8)
Main PID: 5809 (php-fpm7.3)
Status: "Processes active: 10, idle: 0, Requests: 289, slow: 0, Traffic: 1.3req/sec"
Tasks: 11 (limit: 19155)
Memory: 44.4M
CGroup: /system.slice/php7.3-fpm.service
├─5809 php-fpm: master process (/etc/php/7.3/fpm/php-fpm.conf)
├─6634 php-fpm: pool www
├─6635 php-fpm: pool www
├─6636 php-fpm: pool www
├─6637 php-fpm: pool www
├─6638 php-fpm: pool www
├─6639 php-fpm: pool www
├─6640 php-fpm: pool www
├─6641 php-fpm: pool www
├─6642 php-fpm: pool www
└─6643 php-fpm: pool www
Aug 23 12:01:47 SS systemd[1]: Starting The PHP 7.3 FastCGI Process Manager...
Aug 23 12:01:47 SS systemd[1]: Started The PHP 7.3 FastCGI Process Manager.
4. Error messages and/or full log output:
From Access.log - My access log is filled with these empty requests, that just hang up and time out after 30 seconds. The site is not available at all during this POST spam. The requests never seem to make it to the PHP logic as there is an automatic header redirection to another path than /.
{
"level":"error",
"ts":1629717560.6114402,
"logger":"http.log.access.log0",
"msg":"handled request",
"request": {
"remote_addr":"127.0.0.1:40992",
"proto":"HTTP/1.1",
"method":"POST",
"host":"redacted-host-sorry.com",
"uri":"/",
"headers": {
"Content-Type":["application/x-www-form-urlencoded"],
"User-Agent":["Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1; .NET CLR 1.1.4322)"],
"Connection":["keep-alive"],
"Keep-Alive":["900"],
"Content-Length":["10000"]
}
},
"common_log":"127.0.0.1 - - [23/Aug/2021:11:19:20 +0000] \"POST / HTTP/1.1\" 502 15",
"duration":143.002335861,
"size":15,
"status":502,
}
5. What I already tried:
Tried to:
- Mess with php-fpm settings, children and processes. No luck.
- Tried to add timeouts both to PHP and to Caddy. No luck.
Only thing that works (temporarily) is restarting PHP-FPM.
6. Links to relevant resources:
None