Nginx 缩略图

Nginx 缩略图

1、安装PRCE

wget --no-check-certificate  https://netix.dl.sourceforge.net/project/pcre/pcre/8.40/pcre-8.40.tar.gz
tar -xzvf pcre-8.40.tar.gz
cd pcre-8.40
./configure --prefix=/usr/local/pcre --enable-utf8 --enable-unicode-properties
make && make install

2、安装GD

 	yum install gd-devel

3、下载安装Nginx

 	wget http://nginx.org/download/nginx-1.14.2.tar.gz
	tar -xzvf nginx-1.14.2.tar.gz
	cd nginx-1.14.2
	./configure --prefix=/home/visionread/share/nginx2 --with-http_image_filter_module          #注意--prefix 目录，这里指nginx编译安装后对目录
	make && make install

4、修改nginx.conf

1.http 代码块 新增：

	#缓存配置
    proxy_cache_path /home/visionread/image_cache levels=1:2 keys_zone=image_cache:10m max_size=10g inactive=3M use_temp_path=on;

2.service 代码块 新增：

  location /court/download/downloadFile {
        set $image_uri http://clustername/court/download/downloadFile?CaseID=$arg_CaseID&subIndex=$arg_subIndex&fileID=$arg_fileID&subCaseId=$arg_subCaseId;
        if ($arg_process_image ~* "(resize|crop),(\d+|-)x(\d+|-)" ){
        	set $process $1;
            set $width  $2;
            set $height $3;
            set $image_uri http://127.0.0.1:8088/image_$process?CaseID=$arg_CaseID&subIndex=$arg_subIndex&fileID=$arg_fileID&subCaseId=$arg_subCaseId&width=$width&height=$height;
        }
        proxy_cache_revalidate on;
        proxy_cache image_cache;
        proxy_temp_path /tmp;
        proxy_set_header Host $host;
        proxy_pass $image_uri;
       	proxy_hide_header Cache-Control;
        add_header Cache-Control "no-cache";
        error_page     415   = /empty;
    }

	location /image_resize {
		proxy_pass http://clustername/court/download/downloadFile?CaseID=$arg_CaseID&subIndex=$arg_subIndex&fileID=$arg_fileID&subCaseId=$arg_subCaseId;
		image_filter_buffer 10M;
		image_filter resize $arg_width $arg_height;
		allow 127.0.0.0/8;
		deny all;
		expires 1s;
		add_header Cache-Control "public";
	}

	location /image_crop {
		proxy_pass http://clustername/court/download/downloadFile?CaseID=$arg_CaseID&subIndex=$arg_subIndex&fileID=$arg_fileID&subCaseId=$arg_subCaseId;
		image_filter_buffer 10M;
		image_filter crop $arg_width $arg_height;
		allow 127.0.0.0/8;
		deny all;
		expires 1s;
		add_header Cache-Control "public";
	}

	location = /empty {
		empty_gif;
	}

4、验证是否安装成功

./sbin/nginx -V

输出

nginx version: nginx/1.14.2
built by gcc 4.4.7 20120313 (Red Hat 4.4.7-23) (GCC)
configure arguments: --prefix=/home/visionread/share/nginx2 --with-http_image_filter_module