MythWeb 0.27 on Nginx 1.4.x on CentOS 6.x

Howto install MythWeb on a CentOS v6.4 VM, using Nginx as the web server and php-fpm to run the php. The database server is on another VM. The mythweb package is installed from ATRPMs as part of the backend installation (mythweb-0.27-280.noarch).

Install

Install the nginx repository

# rpm -Uvh http://nginx.org/packages/centos/6/noarch/RPMS/nginx-release-centos-6-0.el6.ngx.noarch.rpm

Install Nginx

# yum install nginx

Install php fast package manager. The other php support should be installed already (except php-process seems to be missing).

yum install php-fpm php-process

Configure php-fpm

Edit the default '/etc/php-fpm.d/www.conf'. I've removed all the additional comments and increased the 'memory_limit'.

[www]
listen = 127.0.0.1:9000
listen.allowed_clients = 127.0.0.1

user = nginx
group = nginx

pm = dynamic
pm.max_children = 50
pm.start_servers = 5
pm.min_spare_servers = 5
pm.max_spare_servers = 35

slowlog = /var/log/php-fpm/www-slow.log
php_admin_value[error_log] = /var/log/php-fpm/www-error.log
php_admin_value[memory_limit] = 64M
php_admin_flag[log_errors] = on

php_value[session.save_handler] = files
php_value[session.save_path] = /var/lib/php/session

Add the nginx user to the apache group so that it can group access the mythtv web files:

# usermod -G apache -a nginx

Start the service

# chkconfig php-fpm on
# service php-fpm start

Configure Nginx

Add a Nginx configuration '/etc/nginx/conf.d/mythtv.conf'. It is assumed to be in a controlled environment, so password and TLS is not implemented. The MythTV content is located in the root of the web site (no 'mythweb' path name prefix is required).

server {

   listen       [::]:80 default_server ipv6only=off;
   server_name  _ "";

   root /var/www/html/mythweb;

   error_page   500 502 503 504  /50x.html;
   location = /50x.html {
       root   /usr/share/nginx/html;
   }

   location / {
       # auth_basic             "MythWeb";
       # auth_basic_user_file   mythweb.passwd;
       index                    /mythweb.php;
       try_files                $uri @handler;
   }

   location ~ /.+\.php {
       fastcgi_pass            127.0.0.1:9000;
       include                 fastcgi_params;
       fastcgi_index           mythweb.php;
       fastcgi_split_path_info ^(.+\.php)(/?.+)$;
       fastcgi_param           SCRIPT_FILENAME  $document_root$fastcgi_script_name;
       fastcgi_param           PATH_INFO        $fastcgi_path_info;
       fastcgi_param           db_server        onyx.lucidsolutions.co.nz;
       fastcgi_param           db_name          mythconverg;
       fastcgi_param           db_login         mythtv;
       fastcgi_param           db_password      mythtv;
       fastcgi_param           hostname         mythtv.lucidsolutions.co.nz;
   }

   location @handler {
       rewrite /(.+\.(php|pl))/.*      /$1 last;
       rewrite /(pl(/.*)?)$            /mythweb.pl/$1 last;
       rewrite /(.+)$                  /mythweb.php/$1 last;
       rewrite /(.*)$                  /mythweb.php last;
   }
}

Appendices

php-process dependency missing

The following error message is displayed in the nginx log.

2013/11/10 22:32:07 [error] 1742#0: *56 FastCGI sent in stderr: "PHP message: PHP Fatal error: Call to undefined function posix_getpwuid() in /var/www/html/mythweb/includes/data_dir.php on line 17" while reading response header from upstream, client: ::ffff:10.20.11.3, server: _, request: "GET / HTTP/1.1", upstream: "fastcgi://127.0.0.1:9000", host: "mythtv.lucidsolutions.co.nz"

Fix this by installing the php-process package

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