nginx lua fastdfs動態縮圖
阿新 • • 發佈：2019-01-23
d.檢視原圖
d.測試檔案
1.安裝軟體基礎包
useradd -r nginx -s /sbin/nologin
yum -y install epel-release git
yum install -y gcc gcc-c++ zlib zlib-devel openssl openssl-devel pcre pcre-devel gd-devel
yum install -y libpng libjpeg libpng-devel libjpeg-devel ghostscript libtiff libtiff-devel freetype freetype-devel readline-devel ncurses-devel 2.下載相關軟體，其中nginx-http-concat和echo-nginx-module模組非必須
git clone https://github.com/alibaba/nginx-http-concat.git
git clone https://github.com/simpl/ngx_devel_kit.git
git clone https://github.com/openresty/echo-nginx-module.git
git clone https://github.com/openresty/lua-nginx-module.git
# 安裝LuaJIT
cd /usr/local/src
wget http://luajit.org/download/LuaJIT-2.0.4.tar.gz
tar -zxf LuaJIT-2.0.4.tar.gz
cd LuaJIT-2.0.4
make
make install
export LUAJIT_LIB=/usr/local/lib
export LUAJIT_INC=/usr/local/include/luajit-2.0
ln -s /usr/local/lib/libluajit-5.1.so.2 /lib64/libluajit-5.1.so.2
# 安裝Lua
cd /usr/local/src
wget http://www.lua.org/ftp/lua-5.3.1.tar.gz
tar -zxvpf lua-5.3.1.tar.gz
cd lua-5.3.1
make linux && make install
# 安裝GM
cd /usr/local/src
wget ftp://ftp.graphicsmagick.org/pub/GraphicsMagick/1.3/GraphicsMagick-1.3.18.tar.gz
tar -zxvf GraphicsMagick-1.3.18.tar.gz
cd GraphicsMagick-1.3.18
./configure --prefix=/usr/local/GraphicsMagick-1.3.18 --enable-shared
make && make install
ln -s /usr/local/GraphicsMagick-1.3.18 /usr/local/GraphicsMagick
# 安裝nginx
cd /usr/local/src
wget http://nginx.org/download/nginx-1.10.2.tar.gz
tar -zxvf nginx-1.10.2.tar.gz
cd nginx-1.10.2
./configure --prefix=/usr/local/nginx-1.10.2 \
--user=nginx \
--group=nginx \
--with-http_ssl_module \
--with-http_realip_module \
--with-http_sub_module \
--with-http_flv_module \
--with-http_dav_module \
--with-http_gzip_static_module \
--with-http_stub_status_module \
--with-http_addition_module \
--add-module=/usr/local/src/fastdfs-nginx-module/src \
--with-http_image_filter_module \
--with-pcre \
--add-module=../nginx-http-concat \
--add-module=../lua-nginx-module \
--add-module=../ngx_devel_kit \
--add-module=../echo-nginx-module \
--with-ld-opt=-Wl,-rpath,$LUAJIT_LIB
make
make install
ln -s /usr/local/nginx-1.10.2 /usr/local/nginx 3.第一種情況：普通上傳的檔案生成縮圖
a. 準備gm的lua指令碼
cd /usr/local/nginx/conf/ mkdir lua # GM的lua指令碼 vim ImageResizer.lua local command = "/usr/local/GraphicsMagick/bin/gm convert -auto-orient -strip " .. ngx.var.request_filepath .. " -resize " .. ngx.var.width .. "x" .. ngx.var.height .. " +profile \"*\" " . . ngx.var.request_filepath .. "_" .. ngx.var.width .. "x" .. ngx.var.height .. "." .. ngx.var.ext; os.execute(command); ngx.exec(ngx.var.request_uri);
b.修改nginx配置檔案
server {
listen 80;
server_name 192.168.1.19;
root /data/attached/b2b;
location /lua1 {
default_type 'text/plain';
content_by_lua 'ngx.say("hello, lua")';
}
location ~* ^(.+\.(jpg|jpeg|gif|png))_(\d+)x(\d+)\.(jpg|jpeg|gif|png)$ {
root /data/attached/b2b;
if (!-f $request_filename) { # 如果檔案不存在時才需要裁剪
add_header X-Powered-By 'Lua GraphicsMagick';# 此 HTTP Header 無實際意義，用於測試
add_header file-path $request_filename; # 此 HTTP Header 無實際意義，用於測試
#lua_code_cache off; # 在編寫外部 Lua 指令碼時，設定為 off Nginx 不會快取 Lua，方便除錯
set $request_filepath /data/attached/b2b$1; # 設定原始圖片路徑，如：/document_root/1.gif
set $width $3; # 設定裁剪/縮放的寬度
set $height $4; # 設定裁剪/縮放的高度
set $ext $5; # 圖片檔案格式字尾
content_by_lua_file /usr/local/nginx/conf/lua/ImageResizer.lua; # 載入外部 Lua 檔案
}
}
}chown nginx.nginx /data/attached/
/usr/local/nginx/sbin/nginx -t
/usr/local/nginx/sbin/nginx -s reloadd.檢視原圖
e.縮圖
4.第二種情況：fastdfs上傳的檔案生成縮圖
a.下載lua指令碼到/usr/local/nginx/conf/lua目錄下
git clone https://github.com/hpxl/nginx-lua-fastdfs-GraphicsMagick.git
cd nginx-lua-fastdfs-GraphicsMagick/lua
cp ./* /usr/local/nginx/conf/lua/
cd /usr/local/nginx/conf/lua/
vim fastdfs.lua # 46行配置tracker的地址，72行配置gm的命令變數
46 fdfs:set_tracker("10.160.43.105", 22122)
47 fdfs:set_timeout(1000)
48 fdfs:set_tracker_keepalive(0, 100)
49 fdfs:set_storage_keepalive(0, 100)
50 local data = fdfs:do_download(fileid)
51 if data then
52 -- check image dir
53 if not is_dir(ngx.var.image_dir) then
54 os.execute("mkdir -p " .. ngx.var.image_dir)
55 end
56 writefile(originalFile, data)
57 end
58 end
59
60 -- 建立縮圖
61 local image_sizes = {"80x80", "800x600", "40x40", "60x60"};
62 function table.contains(table, element)
63 for _, value in pairs(table) do
64 if value == element then
65 return true
66 end
67 end
68 return false
69 end
70
71 if table.contains(image_sizes, area) then
72 local command = "/usr/local/GraphicsMagick/bin/gm convert " .. originalFile .. " -thumbnail " .. area .. " -background gray -gravity center -extent " .. area .. " " .. ngx.var.file;
73 os.execute(command);
74 end;
75
76 if file_exists(ngx.var.file) then
77 --ngx.req.set_uri(ngx.var.uri, true);
78 ngx.exec(ngx.var.uri)
79 else
80 ngx.exit(404)
81 end
b.配置nginx檔案
#
server {
listen 8801;
server_name 10.160.43.26;
# LUA
location /hello {
default_type 'text/plain';
content_by_lua 'ngx.say("hello,lua")';
}
# fastdfs 縮圖生成
location /group1/M00 {
alias /data/fastdfs/data/data;
set $image_root "/data/fastdfs/data/data";
if ($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) {
# # 關閉lua程式碼快取，方便除錯lua指令碼
#lua_code_cache off;
content_by_lua_file "/usr/local/nginx/conf/lua/fastdfs.lua";
}
ngx_fastdfs_module;
}
# log file
access_log logs/img_access.log access;
}c.圖片目錄賦予網站使用者寫的許可權
/data/fastdfs/data
chown -R nginx.nginx data
/usr/local/nginx/sbin/nginx -t
/usr/local/nginx/sbin/nginx -s reloadd.測試檔案
原圖
參考文件：http://ylw6006.blog.51cto.com/470441/1830002
https://github.com/hpxl/nginx-lua-fastdfs-GraphicsMagick