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litespeed_wiki:python:lswsgi [2013/08/07 18:09]
Michael 		litespeed_wiki:python:lswsgi [2015/07/29 14:33]
Michael Alegre removed
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 ====== Running a Python Application with LSAPI ====== ====== Running a Python Application with LSAPI ======
  
-LiteSpeed SAPI is the easiest and fastest way to run web applications with LiteSpeed Web Server. Recently, we've introduced LSAPI support for Python applications through WSGI. WSGI (Web Server...) is an API for .... It is important to note that, while almost all Python applications ​in wide use on the Internet ​are WSGI-compatible, ​Python applications ​are not necessarily WSGI-compatible. This wiki will go over how to set up LSWS to run Python applications with LWSGI. This wiki assumes that you already have a working version of Python installed and virtual hosts set up to run it on.+LiteSpeed SAPI is the easiest and fastest way to run web applications with LiteSpeed Web Server. Recently, we've introduced LSAPI support for Python applications through WSGI. WSGI (Web Server ​Gateway Interface) is a low-level interface between web servers and web applications. It allows Python applications designed ​for WSGI to be used in a variety of settings. It is important to note that, while most Python applications are WSGI-compatible, ​not all are. 
 + 
 +This wiki will go over how to set up LSWS to run Python applications with LWSGI. This wiki assumes that you already have a working version of Python installed and virtual hosts set up to run it on.
  
 ===== Compile Python with LSWSGI ===== ===== Compile Python with LSWSGI =====
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 I go to the External App tab (WebAdmin console > Configuration > External App) and add an external application. (This can be done at the server or virtual host level.) I go to the External App tab (WebAdmin console > Configuration > External App) and add an external application. (This can be done at the server or virtual host level.)
  
 +{{litespeed_wiki:​python:​python_add_ext_app.png?​700}}
  
 I make the type ''​LSAPI App''​. I make the type ''​LSAPI App''​.
  
 +{{litespeed_wiki:​python:​python_ext_app_type.png?​700}}
  
 +I give it a name and a socket. Most importantly,​ for the Command setting, I specify the location of my lswsgi executable: ''/​usr/​local/​lsws/​fcgi-bin/​lswsgi''​. (You also have to pick values for Max Connections,​ Initial Request Timeout, and Retry Timeout.)
  
-I give it a name and a socket. Most importantly,​ for the Command setting, I specify the location of my lswsgi executable: ''/​usr/​local/​lsws/​fcgi-bin/​lswsgi''​. (You also have to pick values for Max Connections,​ Initial Rquest Timeout, and Retry Timeout.) +{{litespeed_wiki:python:​python_ext_app_settings.png?700}}
- +
- +
  
 Now I have an LSWSGI external application. ​ Now I have an LSWSGI external application. ​
  
- +{{litespeed_wiki:​python:​python_ext_app_success.png?​700}}
  
 ==== Setting up the script handler ==== ==== Setting up the script handler ====
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 Now I need to create a WSGI script handler to tell LSWS to send ''​.wsgi''​ scripts to my LSWSGI application. I go to the Script Handler tab (WebAdmin console > Configuration > Script Handler) and click Add. (This, also, can be done at the server or virtual host level.) Now I need to create a WSGI script handler to tell LSWS to send ''​.wsgi''​ scripts to my LSWSGI application. I go to the Script Handler tab (WebAdmin console > Configuration > Script Handler) and click Add. (This, also, can be done at the server or virtual host level.)
  
 +{{litespeed_wiki:​python:​python_add_script_handler.png?​700}}
  
 I stipulate ''​wsgi''​ as the suffix of my WSGI Python apps. I pick Handler Type ''​LiteSpeed SAPI''​ and, for Handler Name, choose the LSWSGI external application I just created. (If you want scripts other than ''​.wsgi''​ to use Python, you can make extra script handlers to handle those scripts.) I stipulate ''​wsgi''​ as the suffix of my WSGI Python apps. I pick Handler Type ''​LiteSpeed SAPI''​ and, for Handler Name, choose the LSWSGI external application I just created. (If you want scripts other than ''​.wsgi''​ to use Python, you can make extra script handlers to handle those scripts.)
  
- +{{litespeed_wiki:​python:​python_script_handler_settings.png?​700}}
- +
  
 Now my LSWS can handle ''​.wsgi''​ scripts and knows where to send them. Now my LSWS can handle ''​.wsgi''​ scripts and knows where to send them.
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 ===== Test ===== ===== Test =====
  
-To test this I'​m ​putting ​the simple hello world script below:+To test this I'​m ​using the simple hello world script below:
  
 <code python> <code python>
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 I name my file ''​hello.wsgi''​ and save it to ''/​usr/​local/​lsws/​DEFAULT/​html''​. This is the document root for LSWS's default vhost, Example. I name my file ''​hello.wsgi''​ and save it to ''/​usr/​local/​lsws/​DEFAULT/​html''​. This is the document root for LSWS's default vhost, Example.
  
-Now, when I point my browser to ''​localhost:​8088/​hello.wsgi''​ I see the correct output displayed. It works! +Now, when I point my browser to ''​localhost:​8088/​hello.wsgi''​, I see the correct output displayed. It works!
  
 +{{litespeed_wiki:​python:​python_hello_world_success.png?​700}}