nginx vhost config for WordPress + PHP-FPM

nginx-vhost.conf

upstream php-fpm {
    server unix:/var/run/php5-fpm.sock;
}

server {
    listen 80;
    server_name www.example.com;
    rewrite ^ http://example.com$request_uri?;
}

server {
    listen 80;
    server_name example.com;

    root /var/www/example.com;
    index index.php;
    charset UTF-8;

    gzip on;
    gzip_http_version 1.1;
    gzip_vary on;
    gzip_comp_level 6;
    gzip_proxied any;
    gzip_types text/plain text/xml text/css application/x-javascript;

    access_log /var/log/nginx/example.com.access.log;
    error_log /var/log/nginx/example.com.error.log;

    location = /favicon.ico {
        log_not_found off;
        access_log off;
    }

    location = /robots.txt {
        allow all;
        log_not_found off;
        access_log off;
    }

    location ~ /\.svn/* {
        deny all;
    }

    location ~ /\.git/* {
        deny all;
    }

    location /nginx_status {
        stub_status on;
        access_log off;
    }

    location / {
        try_files $uri $uri/ /index.php?q=$uri&$args;
    }

    location ~ \.php$ {

        set $nocache "";
        if ($http_cookie ~ (comment_author_.*|wordpress_logged_in.*|wp-postpass_.*)) {
           set $nocache "Y";
        }

        fastcgi_pass  php-fpm;
        fastcgi_index index.php;
        fastcgi_param SCRIPT_FILENAME /var/www/example.com$fastcgi_script_name;
        fastcgi_intercept_errors on;
        include fastcgi_params;

        fastcgi_cache_use_stale error timeout invalid_header http_500;
        fastcgi_cache_key $host$request_uri;
        fastcgi_cache example;
        fastcgi_cache_valid 200 1m;
        fastcgi_cache_bypass $nocache;
        fastcgi_no_cache $nocache;
    }

    location ~* \.(js|css|png|jpg|jpeg|gif|ico)$ {
        expires max;
        log_not_found off;
    }

    location ~ ^/(status|ping)$ {
        include /etc/nginx/fastcgi_params;
        fastcgi_pass unix:/var/run/php5-fpm.sock;
        fastcgi_param SCRIPT_FILENAME $fastcgi_script_name;
        allow 127.0.0.1;
        deny all;
    }
}

Thanks for sharing this. Very handy. Some questions:

1. Why the IF condition for the caching? Can't we do the same with proxy_cache?
2. Might be nice to NOT cache the stuff for logged in users ONLY when they're in wp_admin, but do cache the main website?
3. What does "fastcgi_params" include file look like for you?

Thanks

for those trying this: add
fastcgi_param SCRIPT_FILENAME $document_root/$fastcgi_script_name;

to the php-location

no work