（昔別アカウントで書いていた記事の移行です）

業務でpythonのcgiを使う機会があり、調べた結果を備忘録として。

環境

CentOS7.4
Apache2.4.6
Python 2.7.5
Python 3.6.5

インストール方法

mod_python

1.事前準備

yum install httpd httpd-devel python-devel
yum groupinstall "Development Tools"

2.ダウンロード

wget http://dist.modpython.org/dist/mod_python-3.5.0.tgz

3.コンパイル

tar zxfv mod_python-3.5.0.tg
cd mod_python-3.5.0
./configure -with-apxs=/usr/bin/apxs

4.ファイル編集

 vi dist/version.sh
　　===================
　　　#!/bin/sh
　　　MPV_PATH="`dirname $0`/../src/include/mp_version.h"
　　　MAJ=`awk '/MP_VERSION_MAJOR/ {print $3}' $MPV_PATH`
　　　MIN=`awk '/MP_VERSION_MINOR/ {print $3}' $MPV_PATH`
　　　PCH=`awk '/MP_VERSION_PATCH/ {print $3}' $MPV_PATH`
　　　#GIT=`git describe --always`
　　　#echo $MAJ.$MIN.$PCH-$GIT
　　　echo $MAJ.$MIN.$PCH-
　　===================

5.インストール

make
make install

mod_wsgi

1.インストール

yum install -y python36u-mod_wsgi

Apacheの設定例

mod_cgi

<IfModule alias_module>
    ScriptAlias /cgi-bin/ "/var/www/cgi-bin/"
</IfModule>
<Directory "/var/www/cgi-bin">
    AllowOverride None
    Options FollowSymLinks ExecCGI
    Require all granted
    AddHandler cgi-script .py
</Directory>

mod_python

<IfModule alias_module>
    ScriptAlias /cgi-bin/ "/var/www/cgi-bin/"
</IfModule>

LoadModule python_module modules/mod_python.so
<Directory "/var/www/cgi-bin">
    AllowOverride None
    Require all granted
    AddHandler mod_python .py
    PythonHandler hello
    PythonDebug On
</Directory>

mod_wsgi

LoadModule wsgi_module modules/mod_wsgi_python3.6.so

WSGIScriptAlias / /var/www/wsgi-bin/
WSGIPythonPath /var/www/wsgi-bin/
<Directory "/var/www/wsgi-bin/">
    AllowOverride None
    Require all granted
    AddHandler wsgi-script .py
</Directory>

プログラムの作成方法

mod_cgi

一般的なpythonのプログラムでいいと思います

mod_python

プログラム名
- hello.py（PythonHandlerに合わせる)
実行時の呼び出しメソッド
def handler(req):
レスポンスの指定例
req.contet_type = "application/json" ← Content-Type
req.write("Hello World") ← リクエストボディ
戻り値例
apache.OK ← HTTPステータス

mod_wsgi

実行時の呼び出しメソッド
def application(environ, start_response):
レスポンスの指定例
start_response('200 OK', [('Content-type', 'text/html')]) ← HTTPステータス、HTTPヘッダ
戻り値例
return [b''Hello World] ← リクエストボディのバイナリ

処理速度

ab -n 1000 -c 100 https://localhost/cgi-bin/XXXで計測

mod_cgi

Server Software:        Apache
Server Hostname:        localhost
Server Port:            443
SSL/TLS Protocol:       TLSv1.2,ECDHE-RSA-AES256-GCM-SHA384,2048,256

Document Path:          /cgi-bin/test.py
Document Length:        1578 bytes

Concurrency Level:      100
Time taken for tests:   11.488 seconds
Complete requests:      1000
Failed requests:        0
Write errors:           0
Total transferred:      1734938 bytes
HTML transferred:       1578000 bytes
Requests per second:    87.04 [#/sec] (mean)
Time per request:       1148.847 [ms] (mean)
Time per request:       11.488 [ms] (mean, across all concurrent requests)
Transfer rate:          147.48 [Kbytes/sec] received

Connection Times (ms)
             min  mean[+/-sd] median   max
Connect:        2   24  37.0     12     249
Processing:   247 1091 156.7   1073    1707
Waiting:      143 1001 142.9    997    1655
Total:        253 1115 176.7   1088    1864

mod_python

Server Software:        Apache
Server Hostname:        localhost
Server Port:            443
SSL/TLS Protocol:       TLSv1.2,ECDHE-RSA-AES256-GCM-SHA384,2048,256

Document Path:          /cgi-bin/hello.py
Document Length:        1577 bytes

Concurrency Level:      1000
Time taken for tests:   0.992 seconds
Complete requests:      1000
Failed requests:        0
Write errors:           0
Total transferred:      1697000 bytes
HTML transferred:       1577000 bytes
Requests per second:    1007.75 [#/sec] (mean)
Time per request:       992.311 [ms] (mean)
Time per request:       0.992 [ms] (mean, across all concurrent requests)
Transfer rate:          1670.07 [Kbytes/sec] received

Connection Times (ms)
             min  mean[+/-sd] median   max
Connect:        5  220 152.3    156     632
Processing:    10   71  14.1     75     156
Waiting:        7   27   9.8     25     135
Total:        148  291 154.4    229     708

mod_wsgi

Server Software:        Apache
Server Hostname:        localhost
Server Port:            443
SSL/TLS Protocol:       TLSv1.2,ECDHE-RSA-AES256-GCM-SHA384,2048,256

Document Path:          /hello
Document Length:        1577 bytes

Concurrency Level:      1000
Time taken for tests:   1.608 seconds
Complete requests:      1000
Failed requests:        0
Write errors:           0
Total transferred:      1729000 bytes
HTML transferred:       1577000 bytes
Requests per second:    621.76 [#/sec] (mean)
Time per request:       1608.325 [ms] (mean)
Time per request:       1.608 [ms] (mean, across all concurrent requests)
Transfer rate:          1049.84 [Kbytes/sec] received

Connection Times (ms)
             min  mean[+/-sd] median   max
Connect:        6  516 248.1    412    1399
Processing:   145  338  73.0    355     468
Waiting:        2  107  40.8     95     293
Total:        160  854 246.4    824    1580

参考

mod_pythonの公式ドキュメント
https://mod-python-doc-ja.readthedocs.io/ja/latest/contents.html
mod_wsgiの公式ドキュメント
https://modwsgi.readthedocs.io/en/develop/index.html

apache cgi-bin として pythonスクリプト を実行する（再掲）

環境

インストール方法

mod_python

mod_wsgi

Apacheの設定例

mod_cgi

mod_python

mod_wsgi

プログラムの作成方法

mod_cgi

mod_python

mod_wsgi

処理速度

mod_cgi

mod_python

mod_wsgi

参考

apache cgi-bin として pythonスクリプトを実行する（再掲）