I have multiple nginx virtualhosts set up on my server. tershronalds.com is running vanilla wordpress 4.3, and staging.ninjawars.net is running a custom php codebase. Both are relying on php5-fpm.
If no php errors or exceptions are triggered, both sites seem to operate ok. In the case of the tershronalds.com wordpress, there are few errors or exceptions, normally no problem. The staging.ninjawars.net custom php codebase uses an auto_prepend_file to front-load a variety of libraries:
fastcgi_param PHP_VALUE "auto_prepend_file=/path/to/ninjawars/deploy/lib/base.inc.php \n session.cookie_domain=staging.ninjawars.net \n date.timezone=America/New_York \n default_charset=UTF-8 \n";
However, if the custom php codebase errors out or an exception occurs, nginx starts misbehaving! It starts sharing configuration between virtualhosts, breaking the tershronalds.com wordpress site:
2015/09/04 13:37:58 [error] 13145#0: *17413 FastCGI sent in stderr:
"PHP message: PHP Fatal error: Cannot redeclare validate_username() (previously declared in /path/to/ninjawars/deploy/lib/control/lib_auth.php:317) in /path/to/tersh/www/wp-includes/user.php on line 1792" while reading response header from upstream, client: 10.183.252.21, server: tershronalds.com, request: "GET / HTTP/1.1", upstream: "fastcgi://unix:/var/run/php5-fpm.sock:", host: "tershronalds.com"
In other words, nginx goes crazy and the wordpress site starts breaking because it includes code from the ninjawars custom codebase that causes duplicate functions!
I have thought of trying to upgrade nginx to work around it, but nginx seems to be at it's latest version, and same with php5-fpm (maybe). The virtualhost configurations actually work and seem valid... ...until a php error/exception occurs. What else should I look into to try to work around this buggy behavior?
Software version information:
apt-cache policy nginx nginx: Installed: 1.4.6-1ubuntu3.3 Candidate: 1.4.6-1ubuntu3.3 Version table: *** 1.4.6-1ubuntu3.3 0
500 http://mirror.rackspace.com/ubuntu/ trusty-updates/main amd64 Packages
100 /var/lib/dpkg/status
1.4.6-1ubuntu3.1 0
500 http://mirror.rackspace.com/ubuntu/ trusty-security/main amd64 Packages
1.4.6-1ubuntu3 0
500 http://mirror.rackspace.com/ubuntu/ trusty/main amd64 Packages admin@megaman:~$ apt-cache policy php5-fpm php5-fpm: Installed: 5.5.9+dfsg-1ubuntu4.11 Candidate: 5.5.9+dfsg-1ubuntu4.11 Version table: *** 5.5.9+dfsg-1ubuntu4.11 0
500 http://mirror.rackspace.com/ubuntu/ trusty-updates/universe amd64 Packages
500 http://mirror.rackspace.com/ubuntu/ trusty-security/universe amd64 Packages
100 /var/lib/dpkg/status
5.5.9+dfsg-1ubuntu4 0
500 http://mirror.rackspace.com/ubuntu/ trusty/universe amd64 Packages
And the wordpress version is the latest 4.3, not that I expect that to be a relevant factor.
Edit if I turn this nginx virtualhost config off, everything works fine (apart, of course, from the staging.ninjawars.net subdomain being fully down).
Staging.ninjawars.net:
server {
listen 80;
server_name staging.ninjawars.net www.ninjawars.net ninjawars.net nw.local nw.remote;
root /path/to/ninjawars/deploy/www;
error_page 404 /404.php;
# redirect server error pages to the static page /50x.html
#
error_page 500 502 503 504 /50x.html;
location = /50x.html {
root /usr/share/nginx/html;
}
index index.php;
location / {
try_files $uri $uri/ =404; # /index.php?$args;
}
location ~ \.php$ {
fastcgi_param PHP_VALUE "auto_prepend_file=/path/to/ninjawars/deploy/lib/base.inc.php \n session.cookie_domain=staging.ninjawars.net \n date.timezone=America/New_York \n default_charset=UTF-8 \n";
try_files $uri =404;
fastcgi_pass unix:/var/run/php5-fpm.sock;
fastcgi_index index.php;
fastcgi_param SCRIPT_FILENAME $document_root$fastcgi_script_name;
include fastcgi_params;
}
}
Here is the somewhat longer & redirecting everything to
no-www, https domain tershronalds.com site:
server {
listen 80;
server_name tershronalds.com;
return 301 https://tershronalds.com$request_uri;
}
server {
listen 80;
server_name www.tershronalds.com;
return 301 https://tershronalds.com$request_uri;
}
server {
listen 80;
server_name tershronalds.net www.tershronalds.net tershart.net www.tershart.net;
return 302 https://tershronalds.com$request_uri;
# Temporarily redirect these domains for now.
}
server {
listen 443 ssl;
server_name tershronalds.com www.tershronalds.com tersh.remote;
root /path/to/tersh/www;
index index.php
# ssl_session_timeout 5m;
ssl_protocols TLSv1 TLSv1.1 TLSv1.2;
ssl_prefer_server_ciphers on;
ssl_ciphers various_cyphers_here
ssl_certificate /somecrt;
ssl_certificate_key /somekey;
#location / {
# First attempt to serve request as file, then
# as directory, then fall back to displaying a 404.
#try_files $uri $uri/ =404;
# Uncomment to enable naxsi on this location
# include /etc/nginx/naxsi.rules
#}
error_page 404 /404.html;
# redirect server error pages to the static page /50x.html
#
error_page 500 502 503 504 /50x.html;
location = /50x.html {
root /usr/share/nginx/html;
}
error_page 401 https://tershronalds.com/forbidden.html;
# Standard wordpress includes !!!
include global/wordpress.conf;
# deny access to .htaccess files, if Apache's document root
# concurs with nginx's one
#
location ~ /\.ht {
deny all;
}
}
