搭建Nginx图片服务器

Part-I 安装Nginx

1. 安装PCRE
2. 下载 ngx_cache_purge 并解压，用来清除缓存
3. 下载Nginx并解压
4. cd nginx-1.7.7
5. 编译，--prefix使用默认值，则nginx安装在/usr/local/nginx

   ./configure    --user=www    --group=www    --add-module=../ngx_cache_purge-1.0     --with-http_stub_status_module    --with-http_ssl_modulemake && make install

Part-II 配置

vim /usr/local/nginx/conf/nginx.conf，并编辑如下：

user  www www;worker_processes  8;error_log  /data3/nginx/error.log  crit;#error_log  logs/error.log;#error_log  logs/error.log  notice;#error_log  logs/error.log  info;pid        /usr/local/nginx/nginx.pid;events {    use epoll;    worker_connections  65535;}http {    include       mime.types;    default_type  application/octet-stream;    charset utf-8;    server_names_hash_bucket_size 128;    client_header_buffer_size 32k;    large_client_header_buffers 4 32k;    client_max_body_size 300m;    sendfile on;    tcp_nopush on;    keepalive_timeout 60;    tcp_nodelay on;    client_body_buffer_size 512k;    proxy_connect_timeout 5;    proxy_read_timeout 60;    proxy_send_timeout 5;    proxy_buffer_size 16k;    proxy_buffers 4 64k;    proxy_busy_buffers_size 128k;    proxy_temp_file_write_size 128k;    gzip on;    gzip_min_length 1k;    gzip_buffers 4 16k;    gzip_http_version 1.1;    gzip_comp_level 2;    gzip_types text/plainapplication/x-javascript text/css application/xml;    gzip_vary on;# proxy_temp_path 和 proxy_cache_path 必须在同一分区    proxy_temp_path /data0/proxy_temp_dir;# 设置web缓存区名称为cahche_one，内存缓存空间大小为200M,1天没有被访问的内容自动清除硬盘缓存空间大小为300G    proxy_cache_path /data0/proxy_cache_dir levels=1:2 keys_zone=cache_one:200m inactive=1d max_size=30g;#    upstream backend_server{#        server 192.168.1.121:80 weight=1 max_fail=2 fail_timeout=30s;    #        server 192.168.1.122:80 weight=1 max_fail=2 fail_timeout=30s;    #        server 192.168.1.123:80 weight=1 max_fail=2 fail_timeout=30s;    #    }#以下为缓存服务器    log_format cache ‘***$time_local \n‘                    ‘   $upstream_cache_status \n‘                    ‘   $remote_addr, $http_x_forwarded_for \n‘                    ‘   Cache-Control: $upstream_http_cache_control \n‘                    ‘   Expires: $upstream_http_expires \n‘                    ‘   "$request"($status) \n‘                    ‘   "$http_user_agent" \n‘;    server {        listen       80;        server_name  192.168.1.120;        location / {            proxy_cache cache_one;            # 对不同的HTTP状态码设置不同的缓存时间            proxy_cache_valid 200 304 12h;            #以域名、URI、参数组合成web服务器的key值，Ngnix根据key值哈希，存储缓存内容到二级缓存目录内            proxy_cache_key  $host$uri$is_args$args;            proxy_set_header Host $host;            proxy_set_header X-Forwarded-For $remote_addr;            #此处跳转到真实图片服务器            proxy_pass http://192.168.1.120:8080;            access_log /data3/nginx/cache.log cache;            expires 1d;        }        location ~ /purge(/.*){            #设置只允许指定的ip或ip段才可以清除url缓存              #allow 127.0.0.1;            #allow 192.168.0.0/16;            #deny  all;            proxy_cache_purge cache_one $host$1$is_args$args;        }#        #扩展名为.php、.jsp、.cig结尾的动态应用程序不缓存#        location ~.*\.(php|jsp|cgi)?$#        {#            proxy_set_header Host $host;#            proxy_set_header X-Forwarded-For $remote_addr;#            proxy_pass http://backend_server;#        }        access_log off;        #error_page  404              /404.html;        # redirect server error pages to the static page /50x.html        #        error_page   500 502 503 504  /50x.html;        location = /50x.html {            root   html;        }        # proxy the PHP scripts to Apache listening on 127.0.0.1:80        #        #location ~ \.php$ {        #    proxy_pass   http://127.0.0.1;        #}        # pass the PHP scripts to FastCGI server listening on 127.0.0.1:9000        #        #location ~ \.php$ {        #    root           html;        #    fastcgi_pass   127.0.0.1:9000;        #    fastcgi_index  index.php;        #    fastcgi_param  SCRIPT_FILENAME  /scripts$fastcgi_script_name;        #    include        fastcgi_params;        #}        # deny access to .htaccess files, if Apache‘s document root        # concurs with nginx‘s one        #        #location ~ /\.ht {        #    deny  all;        #}    }    #真实的图片服务器    server{        listen 8080;        server_name localhost;        location /{            root /data0/images/;            }        #访问日志，一般都off掉        access_log /data3/nginx/access.log combined;    }    # another virtual host using mix of IP-, name-, and port-based configuration    #    #server {    #    listen       8000;    #    listen       somename:8080;    #    server_name  somename  alias  another.alias;    #    location / {    #        root   html;    #        index  index.html index.htm;    #    }    #}    # HTTPS server    #    #server {    #    listen       443 ssl;    #    server_name  localhost;    #    ssl_certificate      cert.pem;    #    ssl_certificate_key  cert.key;    #    ssl_session_cache    shared:SSL:1m;    #    ssl_session_timeout  5m;    #    ssl_ciphers  HIGH:!aNULL:!MD5;    #    ssl_prefer_server_ciphers  on;    #    location / {    #        root   html;    #        index  index.html index.htm;    #    }    #}}

到此，Nginx图片服务区搭建完毕。 在/data0/images/下放入一张图片 200.jpg测试之 访问 http://192.168.1.120/200.jpg， cache_log记录如下：

***12/Nov/2014:16:15:26 +0800    MISS    192.168.1.19, -    Cache-Control: -    Expires: -    "GET /200.jpg HTTP/1.1"(200)    "Mozilla/5.0 (X11; Linux x86_64; rv:30.0) Gecko/20100101 Firefox/30.0" ***12/Nov/2014:16:15:38 +0800    HIT    192.168.1.19, -    Cache-Control: -    Expires: -    "GET /200.jpg HTTP/1.1"(200)    "Mozilla/5.0 (X11; Linux x86_64; rv:30.0) Gecko/20100101 Firefox/30.0"

访问 http://192.168.1.120/purge/200.jpg 清除缓存

搭建Nginx图片服务器