Nginx upstream

1. Nginx upstream code

upstream tomcat_ttpod  {
    server 10.0.0.1:10080 max_fails=3 fail_timeout=30s;
    server 10.0.0.2:10080 max_fails=3 fail_timeout=30s;
    server 10.0.0.3:10080 backup;

server {
    listen 80;
    server_name  ttpod.com;
    index index.htm index.html;

location ~ .*\.(gif|jpg|jpeg|png|ico|js|css|txt|html|htm)$ {
    proxy_cache staticcache;
    proxy_cache_key $host$uri;
    proxy_cache_valid 200 206 301 302 2w;
    proxy_ignore_headers "Cache-Control" "Expires" "Set-Cookie";
    proxy_pass http://tomcat_ttpod;
}
location  /  {
    proxy_pass
}