Nginx+lua_Nginx+GraphicsMagick nginx 缩略图

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nicho1990 2015-07-16 13:51:54

文章标签 缩略图 文章分类 Nginx 服务器

Nginx+lua_Nginx+GraphicsMagick来实现实时缩略图（已验证）

前期准备

tar zxf libpng-1.6.16.tar.gz

make&&make install

tar zxf jpegsrc.v9a.tar.gz

make&&make install

1、安装GraphicsMagick

cd /usr/local/src

wget http://sourceforge.net/projects/graphicsmagick/files/graphicsmagick/1.3.20/GraphicsMagick-1.3.20.tar.gz/download

tar -zxvf GraphicsMagick-1.3.20.tar.gz

cd GraphicsMagick-1.3.20

./configure --prefix=/usr/local/GraphicsMagick --with-jpeg=yes --with-png=yes

make && make install

2、下载luajit

wget http://luajit.org/download/LuaJIT-2.0.2.tar.gz

tar -zxvf LuaJIT-2.0.2.tar.gz

cd LuaJIT-2.0.2

make && make install PREFIX=/usr/local/lj2

ln -sf LuaJIT-2.0.2 /usr/local/lj2/bin/luajit

3、下载 ngx_devel_kit 模块

wget https://github.com/simpl/ngx_devel_kit/archive/master.zip

unzip master

4、下载 lua-nginx-module 模块

https://github.com/openresty/lua-nginx-module/archive/master.zip

unzip master

5、下载echo

https://github.com/agentzh/echo-nginx-module/zipball/master

unzip echo-nginx-module

6、tar zxf ngx_cache_purge-2.3.tar.gz

7、下载nginx

wget http://nginx.org/download/nginx-1.7.5.tar.gz

...

8、设置环境变量

export LUAJIT_LIB=/usr/local/lj2/lib

export LUAJIT_INC=/usr/local/lj2/include/luajit-2.0

export LD_LIBRARY_PATH=/usr/local/lib/:$LD_LIBRARY_PATH

export PKG_CONFIG_PATH=/usr/local/lib/pkgconfig:$PKG_CONFIG_PATH

GM_HOME=/usr/local/GraphicsMagick;

PATH=$GM_HOME/bin:$PATH;

export PATH

export GM_HOME

source /etc/profile

9、nginx 编译安装

./configure --prefix=/usr/local/nginx --with-http_stub_status_module --add-module=/usr/local/src/ngx_devel_kit-master --with-ld-opt=-Wl,-rpath,/usr/local/lj2/lib --add-module=/usr/local/src/ngx_cache_purge-2.3 --with-http_perl_module --add-module=/usr/local/src/lua-nginx-module-master --add-module=/usr/local/src/openresty-echo-nginx-module-23cb1c2

如果编译有错，请把pcre扩展附加上

10、nginx配置

11、虚拟目录vhost

server {

listen 80;

server_name p_w_picpath.host.com;

root /usr/local/nginx/html/test;

index index.html index.htm index.php;

location /lua1 {

default_type 'text/plain';

content_by_lua 'ngx.say("hello, lua")';

}

location /p_w_picpath {

set $p_w_picpath_root /usr/local/nginx/html/test;

set $file "$p_w_picpath_root$uri";

if (!-f $file) {

rewrite_by_lua '

local index = string.find(ngx.var.uri, "([0-9]+)x([0-9]+)");

if (index == nil) then

ngx.exit(404);end;

local originalUri = string.sub(ngx.var.uri, 0, index-2);

local area = string.sub(ngx.var.uri, index);

index = string.find(area, "([.])");

area = string.sub(area, 0, index-1);

local p_w_picpath_sizes = {"160x160","400x300"};

local p_w_picpath_big = {"80x60^", "120x90^", "160x120^"};

function table.contains(table, element)

for _, value in pairs(table) do

if value == element then

return true

end

return false

end

# print(table.contains(p_w_picpath_big, area))

if table.contains(p_w_picpath_big, area) then

local command = "/usr/local/GraphicsMagick/bin/gm convert " .. ngx.var.p_w_picpath_root .. originalUri .. " -thumbnail " .. area .. " -background gray -gravity center -extent " .. area .. " " .. ngx.var.p_w_picpath_root .. ngx.var.uri

os.execute(command);

else

if table.contains(p_w_picpath_sizes, area) then

local command = "/usr/local/GraphicsMagick/bin/gm convert " .. ngx.var.p_w_picpath_root .. originalUri .. " -thumbnail " .. area .. " " .. ngx.var.p_w_picpath_root .. ngx.var.uri;

os.execute(command);

else

ngx.exit(404);

end;

}

# alias /usr/local/nginx/html/test/p_w_picpath;

expires 7d;

}

12、赋予权限

chmod o+w /usr/local/nginx/html/test/p_w_picpath

13、访问

原地址：http://p_w_picpath.rose.com/p_w_picpath/2.jpg