upstream redmine_cluster {

    server unix:/var/run/thin/redmine.0.socket;

    server unix:/var/run/thin/redmine.1.socket;

    server unix:/var/run/thin/redmine.2.socket;

    server unix:/var/run/thin/redmine.3.socket;

}

server {

    listen       80;

    server_name  redmine.asdf.com;

    include /etc/nginx/vhosts.d/modules.d/40_proxy.conf;

    root /home/redmine/public;

    proxy_redirect off;

    location / {

        try_files $uri/index.html $uri.html $uri @cluster;

    }

    location @cluster {

        proxy_pass http://redmine_cluster;

    }

}

40_proxy.conf

proxy_set_header   Host $http_host;                                                                                                   

proxy_set_header   X-Real-IP $remote_addr;                                                                                            

proxy_set_header   X-Forwarded-For $proxy_add_x_forwarded_for;

proxy_set_header   X-Forwarded-Proto $scheme;

client_max_body_size       10m;

client_body_buffer_size    128k;

proxy_connect_timeout      90;

proxy_send_timeout         90;

proxy_read_timeout         90;

proxy_buffer_size          4k;

proxy_buffers              4 32k;

proxy_busy_buffers_size    64k;

proxy_temp_file_write_size 64k;

로그인 등에 ssl 적용은

http://www.redmine.org/projects/redmine/wiki/HowTo_configure_Nginx_to_run_Redmine