Nginx-Lua-FastDFS-GraphicsMagick

FastDFS安装

单机与Nginx
https://blog.csdn.net/ko0491/article/details/108884243
集群与Nginx
https://blog.csdn.net/ko0491/article/details/108888445

LuaJIT

http://luajit.org/download.html

安装lua环境

 tar -zxvf LuaJIT-2.0.5.tar.gz
 cd LuaJIT-2.0.5
 make && make install

配置lua环境变量

export LUAJIT_LIB=/usr/local/lib
export LUAJIT_INC=/usr/local/include/luajit-2.0

GraphicsMagick

ftp://ftp.graphicsmagick.org/pub/GraphicsMagick/1.3/

安装GraphicsMagick

tar -zxvf GraphicsMagick-1.3.26.tar.gz
cd GraphicsMagick-1.3.26
mkdir /data/local/GraphicsMagick -p
./configure --prefix=/data/local/GraphicsMagick --enable-shared
make && make install

查看

/data/local/GraphicsMagick/bin/gm -version

在这里插入图片描述

lua-nginx-module

https://github.com/openresty/lua-nginx-module/tags

ngx_devel_kit/

https://github.com/vision5/ngx_devel_kit/tags

./configure --prefix=/usr/local/nginx --add-module=/usr/local/fastdfs/fastdfs-nginx-module-1.20/src  --add-module=/usr/local/graphicsMagick/lua-nginx-module-0.10.14 --add-module=/usr/local/graphicsMagick/ngx_devel_kit-0.3.1


 make && make install

从github上下载lua脚本nginx-lua-fastdfs-GraphicsMagick

git clone https://github.com/hpxl/nginx-lua-fastdfs-GraphicsMagick.git
cd nginx-lua-fastdfs-GraphicsMagick/lua
cp ./* /usr/local/nginx/conf/lua

修改配置

vim /usr/local/nginx/conf/lua/fastdfs.lua

#在46行
fdfs:set_tracker("你的ip192.168.181.135", 22122)
#在72行
local command = "/data/local/GraphicsMagick/bin/gm convert " .. originalFile  .. " -thumbnail " .. area .. " -background gray -gravity center -extent " .. area .. " " .. ngx.var.file;

完整

-- 写入文件
local function writefile(filename, info)
    local wfile=io.open(filename, "w") --写入文件(w覆盖)
    assert(wfile)  --打开时验证是否出错         
    wfile:write(info)  --写入传入的内容
    wfile:close()  --调用结束后记得关闭
end

-- 检测路径是否目录
local function is_dir(sPath)
    if type(sPath) ~= "string" then return false end

    local response = os.execute( "cd " .. sPath )
    if response == 0 then
        return true
    end
    return false
end

-- 检测文件是否存在
local file_exists = function(name)
    local f=io.open(name,"r")
    if f~=nil then io.close(f) return true else return false end
end

local area = nil
local originalUri = ngx.var.uri;
local originalFile = ngx.var.file;
local index = string.find(ngx.var.uri, "([0-9]+)x([0-9]+)");
if index then
    originalUri = string.sub(ngx.var.uri, 0, index-2);
    area = string.sub(ngx.var.uri, index);
    index = string.find(area, "([.])");
    area = string.sub(area, 0, index-1);

    local index = string.find(originalFile, "([0-9]+)x([0-9]+)");
    originalFile = string.sub(originalFile, 0, index-2)
end
-- check original file
if not file_exists(originalFile) then
    local fileid = string.sub(originalUri, 2);
    -- main
    local fastdfs = require('restyfastdfs')
    local fdfs = fastdfs:new()
    fdfs:set_tracker("192.168.181.135", 22122)
    fdfs:set_timeout(1000)
    fdfs:set_tracker_keepalive(0, 100)
    fdfs:set_storage_keepalive(0, 100)
    local data = fdfs:do_download(fileid)
    if data then
       -- check image dir
        if not is_dir(ngx.var.image_dir) then
            os.execute("mkdir -p " .. ngx.var.image_dir)
        end
        writefile(originalFile, data)
    end
end

-- 创建缩略图
local image_sizes = {"80x80", "800x600", "40x40", "60x60","200x200","100x100"};
function table.contains(table, element)
    for _, value in pairs(table) do
        if value == element then
            return true
        end
    end
    return false
end

if table.contains(image_sizes, area) then
      local command = "/data/local/GraphicsMagick/bin/gm convert " .. originalFile  .. " -thumbnail " .. area .. " -background gray -gravity center -extent " .. area .. " " .. ngx.var.file;
 --   local command = "gm convert " .. originalFile  .. " -thumbnail " .. area .. " -background gray -gravity center -extent " .. area .. " " .. ngx.var.file;  
    os.execute(command);
end;

if file_exists(ngx.var.file) then
    --ngx.req.set_uri(ngx.var.uri, true);  
    ngx.exec(ngx.var.uri)
else
    ngx.exit(404)
end

修改nginx.conf


   server {
    
    
             listen 8888;
        #     server_name localhost;
         #         location ~/group[0-9]/ {
    
    
          #           ngx_fastdfs_module;
           #        }

         location /group1/M00 {
    
    
                     alias /home/fastdfs/data;

                     set $image_root "/home/fastdfs/data";
                     if ($uri ~ "/([a-zA-Z0-9]+)/([a-zA-Z0-9]+)/([a-zA-Z0-9]+)/([a-zA-Z0-9]+)/(.*)") {
    
    
                       set $image_dir "$image_root/$3/$4/";
                       set $image_name "$5";
                       set $file "$image_dir$image_name";
                     }

                     if (!-f $file) {
    
    

                       content_by_lua_file "/usr/local/nginx/conf/lua/fastdfs.lua";
                     }
                     ngx_fastdfs_module;
             }

        }

修改图片目录赋予网站用户写的权限

chmod -R 777 /home/fastdfs/data/

启动Nginx

若出错，如/usr/local/nginx/sbin/nginx: error while loading shared libraries: libluajit-5.1.so.2: cannot open shared object file: No such file or directory
请按如下操作:
find / -name libluajit-5.1.so.2

ln -s /usr/local/lib/libluajit-5.1.so.2 /usr/lib64/libluajit-5.1.so.2

在这里插入图片描述

detected a LuaJIT version which is not OpenResty’s;

[alert] 12687#0: detected a LuaJIT version which is not OpenResty's; many optimizations will be disabled and performance will be compromised (see https://github.com/openresty/luajit2 for OpenResty's LuaJIT or, even better, consider using the OpenResty releases from https://openresty.org/en/download.html)

这个倒问题不大，是个warn而已，需要卸载之前的luajit，到他说的网站去下载。
先卸载原有luagit

cd /usr/locat/lua/LuaJIT-2.0.4
make uninstall

然后从https://github.com/openresty/luajit2下载安装

git clone https://github.com/openresty/luajit2
cd luajit2
make && make install

剩下的步骤跟一开始装luajit是一样的。具体的看自己的目录写。

export LUAJIT_LIB=/usr/local/lib

export LUAJIT_INC=/usr/local/include/luajit-2.1

然后重新编译nginx

问题 -v0.10.16安装里用了16版，会有这个问题，降到14就好了

nginx使用openresty时failed to load the resty.core module

nginx: [alert] failed to load the 'resty.core' module (https://github.com/openresty/lua-resty-core); ensure you are using an OpenResty release from openresty.org/en/download.html (reason: module 'resty.core' not found:
        no field package.preload['resty.core']
        no file './resty/core.lua'
        no file '/usr/local/share/luajit-2.1.0-beta3/resty/core.lua'
        no file '/usr/local/share/lua/5.1/resty/core.lua'
        no file '/usr/local/share/lua/5.1/resty/core/init.lua'
        no file './resty/core.so'
        no file '/usr/local/lib/lua/5.1/resty/core.so'
        no file '/usr/local/lib/lua/5.1/loadall.so'
        no file './resty.so'
        no file '/usr/local/lib/lua/5.1/resty.so'
        no file '/usr/local/lib/lua/5.1/loadall.so') in /usr/local/nginx/conf/nginx.conf:222

下载
在这里插入图片描述

wget https://github.com/openresty/lua-nginx-module/archive/v0.10.14.tar.gz

下载完成后重新编译nginx