improve creation of symlink for php socket and install dep package for example container

deb/OpenMediaCenter/DEBIAN/postinst

@@ -1,11 +1,20 @@
 #!/bin/bash
 # enable nginx site
-rm /etc/nginx/sites-enabled/OpenMediaCenter.conf
-ln -s /etc/nginx/sites-available/OpenMediaCenter.conf /etc/nginx/sites-enabled/OpenMediaCenter.conf
+ln -sf /etc/nginx/sites-available/OpenMediaCenter.conf /etc/nginx/sites-enabled/OpenMediaCenter.conf
 
 # link general socket to current one
-rm /var/run/php-fpm.sock
-ln -s /var/run/php/php*-fpm.sock /var/run/php-fpm.sock
+phpsymlink="/var/run/php-fpm.sock";
+
+# create a gneral symlink to the php socket if not already existing
+if [ -L ${phpsymlink} ] ; then
+   if [ -e ${phpsymlink} ] ; then
+      echo "general php symlink already exists."
+   else
+      ln -sf /var/run/php/php*.*-fpm.sock /var/run/php/php-fpm.sock
+   fi
+else
+   ln -sf /var/run/php/php*.*-fpm.sock /var/run/php/php-fpm.sock
+fi
 
 # setup database
 mysql -uroot -pPASS -e "CREATE DATABASE IF NOT EXISTS mediacenter;"

deb/OpenMediaCenter/etc/nginx/sites-available/OpenMediaCenter.conf

@@ -5,7 +5,7 @@ server {
     location ~ \.php$ {
         include snippets/fastcgi-php.conf;
 
-        fastcgi_pass unix:/var/run/php-fpm.sock;
+        fastcgi_pass unix:/var/run/php/php-fpm.sock;
     }
 
     root /var/www/openmediacenter;