Shulou(Shulou.com)06/01 Report--

Prepare environment 1.1, transfer essential software

There are several dependences of zimg you should build and install before using zimg. And the version of cmake should > = 2. 8, libevent should > = 2. 0, libmemcached should > = 1. 0.18.

Yum install openssl-devel cmake libevent-devel libjpeg-devel giflib-devel libpng-devel libwebp-devel ImageMagick-devel libmemcached-devel

Install the required software, but not on libwebp-devel yum

Libwebp-devel, libevent, and libmemcached need to be recompiled because the version on yum is too low

1. Install libevent

Wget http://cloud.github.com/downloads/libevent/libevent/libevent-2.0.21-stable.tar.gz

Tarzxvf libevent-2.0.17-stable.tar.gz

Cd libevent-2.0.17-stable

. / configure-- prefix=/usr/local

Make&& make install

2. Install libmemcached

Wget https://launchpad.net/libmemcached/1.0/1.0.18/+download/libmemcached-1.0.18.tar.gz

Tarzxvf libmemcached-1.0.18.tar.gz

Cd libmemcached-1.0.18

. / configure-prefix=/usr/local

Make & & make install

3. Install libwebp-devel

Wget http://downloads.webmproject.org/releases/webp/libwebp-0.4.1.tar.gz( this file cannot be downloaded temporarily)

Tarzxvf libwebp-0.4.1.tar.gz

Cd libwebp-0.4.1

. / configure

Make

Sudo make install

, installation

Now you can build zimg itself. If you want to gdbzimg, you can use make debug option.

Git clone https://github.com/buaazp/zimg-b master-- depth=1

Cdzimg

Make

If you want to enable cache to improve performance, or you want to store the images to a distributed storage backend, the softwares below is optional.

Build Optional Storage Backendsmemcached (optional)

Wget http://www.memcached.org/files/memcached-1.4.19.tar.gz

Tarzxvf memcached-1.4.19.tar.gz

Cd memcached-1.4.19

. / configure-- prefix=/usr/local

Make

Make install

Beansdb (optional)

Git clone https://github.com/douban/beansdb

Cdbeansdb

. / configure-- prefix=/usr/local

Make

Benseye (optional)

Git clone git@github.com:douban/beanseye.git

Cdbeanseye

Make

SSDB (optional)

Wget-- no-check-certificate https://github.com/ideawu/ssdb/archive/master.zip

Unzip master

Cdssdb-master

Make

Twemproxy (optional)

Git clone git@github.com:twitter/twemproxy.git

Cdtwemproxy

Autoreconf-fvi

. / configure-- enable-debug=log

Make

Src/nutcracker-h

III. Start up and run

Before running zimg, you need to follow the instructions in the "Install documentation". After the zimg installation is successful, you can simply modify the configuration file and start it. All the options of zimg itself are configured in the configuration file, which you can modify according to your needs:

-- zimg server config

-- server config

-- whether to run in the background

Is_daemon = 1

-- bind IP

Ip = '0.0.0.0'

-- Port

Port = 4869

-- number of running threads. Default is the number of server CPU.

-- thread_num=4

Backlog_num = 1024

Max_keepalives = 1

Retry = 3

System = io.popen ('uname-sn'): read (' * l')

Pwd = io.popen ('pwd'): read (' * l')

-- header config

-- the HTTP header returned with

Headers = 'Cache-Control:max-age=7776000'

-- whether to enable etag caching

Etag = 1

-- access config

-- support mask rules like 'allow 10.1.121.138Universe 24'

-- NOTE: remove rule can improve performance

-- IP control permissions of the upload API. Commenting out the permission rules can improve the processing capacity of the server, as shown below.

-- upload_rule = 'allow all'

-- IP control permissions of the download API

-- download_rule = 'allow all'

-- IP control permissions of the management interface

Admin_rule = 'allow 127.0.0.1'

-- cache config

-- whether to enable memcached caching

Cache = 1

-- caching server IP

Mc_ip = '127.0.0.1'

-- Cache server port

Mc_port = 11211

-- log config

-- log_level output specified level of log to logfile

-- [

LOG_FATAL 0 System is unusable

LOG_ALERT 1 Action must be taken immediately

LOG_CRIT 2 Critical conditions

LOG_ERROR 3 Error conditions

LOG_WARNING 4 Warning conditions

LOG_NOTICE 5 Normal, but significant

LOG_INFO 6 Information

LOG_DEBUG 7 DEBUG message

]]

-- output log level

Log_level = 6

-- output log path

Log_name = pwd.. '/ log/zimg.log'

-- htdocconfig

-- default home page html file path

Root_path = pwd.. '/ www/index.html'

-- admin page html file path

Admin_path = pwd.. '/ www/admin.html'

-- image process config

-- disable URL image processing

Disable_args = 0

-- disable lua script image processing

Disable_type = 0

-- lua process script

-- lua script file path

Script_name = pwd.. '/ script/process.lua'

-- format value: 'none' for original or other format names

-the format of the new image is saved by default, and the string 'none'' indicates that it is saved in the original format, or the desired format name.

Format = 'jpeg'

-- quality value: 1100 (default: 75)

-- the quality of the new picture is saved by default

Quality = 75

-- storage config

-- zimg support 3 ways for storage images

-- Storage backend type, 1 is local storage, 2 is memcached protocol backend, such as beansdb,3 is redis protocol backend, such as SSDB

Mode = 1

-- save_new value: 0.don't save any 1.save all 2.only save types in lua script

-- whether the new files are stored. 0 is not stored, 1 is all stored, and 2 is only the new images generated by lua scripts.

Save_new = 1

-- size limit for uploading images. Default is 100MB.

Max_size = 100,1024,1024

-- A list of image types allowed to be uploaded

Allowed_type = {'jpeg',' jpg', 'png',' gif', 'webp'}

-- mode [1]: local disk mode

-- Storage path for local storage

Img_path = pwd.. '/ img'

-- mode [2]: beansdb mode

-- beansdb server IP

Beansdb_ip = '127.0.0.1'

-- beansdb server port

Beansdb_port = 7900

-- mode [3]: ssdb mode

-- SSDB server IP

Ssdb_ip = '127.0.0.1'

-- SSDB server port

Ssdb_port = 8888

IV. Verification of installation structure

Then start zimg:

Cd bin

. / zimgconf/zimg.lua

Use upload

After zimg starts, you can upload and download images. There are two ways to upload images:

The first is uploading through a browser. The default address after launching zimg is a simple image upload page:

Http://127.0.0.1:4869/

It looks something like this:

After a successful upload, the MD5 of the image will be returned in HTML format:

Other commonly used commands

Commands used

Http://zimg.buaa.us/documents/guidebookcn/

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