Caddy: PHP-FPM

[jacobmischka]

I see that there are several closed issues involving php-fpm, but none of them have helped me.

I believe I have php-fpm configured and running correctly, but I keep getting [ERROR 404 /] Primary script unknown errors when trying to access any PHP files. The user running caddy is a member of the group http, which is the owner and group configured for php-fpm in Arch.

Caddyfile:

localhost:8080
errors error.log
fastcgi / 127.0.0.1:9000 php

PHP-FPM configs: https://gist.github.com/jacobmischka/30d328f4e58717cda1db

$ ps aux | grep php-fpm
root      3260  0.0  0.1 266528 30128 ?        Ss   11:14   0:00 php-fpm: master process (/etc/php/php-fpm.conf)
http      3262  0.0  0.0 266528  8192 ?        S    11:14   0:00 php-fpm: pool www
http      3263  0.0  0.0 266660 11264 ?        S    11:14   0:00 php-fpm: pool www
mischka   3474  0.0  0.0  10728  2304 pts/1    S+   11:18   0:00 grep php-fpm

$ netstat -an | grep :9000
tcp        0      0 127.0.0.1:9000          0.0.0.0:*               LISTEN

[abiosoft]

Add root to your Caddyfile. Caddy may be started from the wrong directory.

root /path/to/php/source/files

[jacobmischka]

I'm running caddy from the directory that the php files are in, but I've added root, still doesn't seem to work.

Caddyfile:

localhost:8080
errors error.log
root /home/mischka/Downloads/dokuwiki
fastcgi / 127.0.0.1:9000 php

/home/mischka/Downloads/dokuwiki/test.php:

<?php
    phpinfo();

[abiosoft]

What about the permissions of the files. Are they readable by php-fpm and what do you have in error log ?

[jacobmischka]

They should be readable, yes. I'm particularly confused as to why it's throwing a 404 error and not a 500 level one. Non-PHP files are showing up fine. I've never used php-fpm before, so I may well be doing something wrong, but I believe the configuration is correct. If you could take a look at them to confirm that that would be great.

-rw-r--r--  1 mischka http       18 Feb 17 11:31 test.php

error.log:

17/Feb/2016:13:15:28 -0600 [ERROR 404 /] Primary script unknown
17/Feb/2016:13:15:32 -0600 [ERROR 404 /test.php] Primary script unknown

My system logs when starting php-fpm:

Feb 17 13:23:04 mischka-work systemd[1]: Started The PHP FastCGI Process Manager.
Feb 17 13:23:04 mischka-work php-fpm[8527]: [NOTICE] systemd monitor interval set to 10000ms
Feb 17 13:23:04 mischka-work php-fpm[8527]: [NOTICE] ready to handle connections
Feb 17 13:23:04 mischka-work php-fpm[8527]: [NOTICE] fpm is running, pid 8527
Feb 17 13:23:04 mischka-work systemd[1]: Starting The PHP FastCGI Process Manager...
Feb 17 13:23:04 mischka-work systemd[1]: Stopped The PHP FastCGI Process Manager.
Feb 17 13:23:04 mischka-work php-fpm[3535]: [NOTICE] exiting, bye-bye!
Feb 17 13:23:04 mischka-work php-fpm[3535]: [NOTICE] Terminating ...
Feb 17 13:23:04 mischka-work systemd[1]: Stopping The PHP FastCGI Process Manager...
Feb 17 13:23:04 mischka-work polkitd[407]: Registered Authentication Agent for unix-process:8520:1009586 (system bus name :1.128 [/usr/bin/pkttyagent --notify-f
Feb 17 13:23:04 mischka-work sudo[8518]: pam_unix(sudo:session): session opened for user root by (uid=0)
Feb 17 13:23:04 mischka-work sudo[8518]:  mischka : TTY=pts/0 ; PWD=/home/mischka/Downloads/dokuwiki ; USER=root ; COMMAND=/usr/bin/systemctl restart php-fpm

[abiosoft]

This is strange. Seeing this the first time.

What platform are you on ?

[jacobmischka]

Arch Linux x64, kernel 4.4.1-2-ARCH.
php 7.0.3-1, php-fpm 7.0.3-1, caddy 0.8.1-1

[mholt]

Did you see https://github.com/mholt/caddy/wiki/Troubleshooting-PHP-FPM-and-FastCGI? Any of those tips help?

[jacobmischka]

I did, and I believe I've been through them all. I've tried both a unix socket and a TCP port for php-fpm's listener. My error message doesn't match any of those examples and I can't see anything in php-fpm's configs that's wrong.

[abiosoft]

If you don't mind. You can mail me temporary ssh details to the server and let me help with troubleshooting.

I have not been able to reproduce it in my own environments.

[humboldtux]

Can you do the following commands just to be sure that the http user can go through all directories of the Root Dir:

ls -ld /home/mischka/Downloads/dokuwiki
ls -ld /home/mischka/Downloads/
ls -ld /home/mischka/
ls -ld /home/

[jacobmischka]

@abiosoft Unfortunately I can't, it's my development computer on my employer's network, it doesn't allow incoming connections.

I'll try setting it up on my personal computer tonight or tomorrow and if I run into the same problem I'll send you ssh info. Thanks for trying, I must have done something wrong but I can't figure out what it is.

[jacobmischka]

Okay well, turns out Downloads wasn't readable, but I've moved it out and it's still giving me the same error. https://gist.github.com/jacobmischka/dc75426d172f37c82d10

I moved it to the regular http server location but I'm still getting the same thing. https://gist.github.com/jacobmischka/43a58335f7fd80df3532

23/Feb/2016:08:50:08 -0600 [ERROR 404 /test.php] Primary script unknown
23/Feb/2016:08:54:49 -0600 [ERROR 404 /test.php] Primary script unknown
23/Feb/2016:08:55:24 -0600 [ERROR 404 /test.php] Primary script unknown
23/Feb/2016:08:55:31 -0600 [ERROR 404 /test.php] Primary script unknown
23/Feb/2016:08:58:21 -0600 [ERROR 404 /test.php] Primary script unknown

test.php is readable as well

-rw-r--r--  1 mischka http       18 Feb 17 11:31 test.php

[mholt]

This page says it's due to a wrongly set "SCRIPT_FILENAME" variable. It should be whatever the absolute path to that test.php file is. @jacobmischka We're still having trouble reproducing this, do you have Go installed?

[jacobmischka]

I do yes

[mholt]

@jacobmischka Cool, it'd be helpful if we could see the value of the vars like SCRIPT_FILENAME (this whole env map would be good) -- I think that'd be a good start.

[jacobmischka]

Well, I haven't looked at this since my last comment, but it's actually working now. Either I needed to reboot after installing php-fpm and I hadn't done that, or I'm an idiot and I forgot to edit the root path after moving it out of the non-readable Downloads folder.

I am very sorry for all of the confusion. Thank you all for your help.

[mholt]

Oh, great to hear :+1:

[terah]

Just to help someone else out:

I had the exact same error and fixed it by changing the user/group in /usr/local/etc/php/7.0/php-fpm.d/www.conf to my own user and group. I then restarted php-fpm with

sudo brew services stop php-fpm.
brew services start php-fpm

Here is my Caddyfile:

# Your site's address 
# The http:// part makes caddy listen on port 80
# You need sudo to start caddy on port 80
http://testsite.local   
# Disable https
# The bootup letsencrypt stuff doesn't like .local domain suffix
tls off
ext .html   # Clean URLs
errors {
    log ../errors.log    # Error log
    404 error-404.html   # Custom error page
}
# php-fpm is configured on 9001 so as to not collide with xdebug which defaults on 9000
fastcgi / localhost:9001 php {
    ext     .php
    split   .php
    index   index.php
}
# Rewrite rules to work with slim framework and alike
rewrite {
    r .*
    ext /
    to /index.php?{query}
}

I run it from within my public directory with sudo caddy --conf=../Caddyfile

[mholt]

Note that you don't need tls off if you specify http:// in the address of the site. ;)

Nor do you need ext .php split .php index index.php in your fastcgi directive if you suffix that first line with php - it's redundant.

[kenfdev]

Just in case somebody cannot solve the Primary script unknown problem with the above solutions. Be sure SELinux is disabled. That fixed it in my case.