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Changes between Version 2 and Version 3 of TracFastCgi
- Timestamp:
- Feb 29, 2012, 1:17:20 PM (13 years ago)
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TracFastCgi
v2 v3 1 [[PageOutline]] 2 1 3 = Trac with FastCGI = 2 4 3 [http://www.fastcgi.com/ FastCGI] interface allows Trac to remain resident much like with [wiki:TracModPython mod_python]. It is faster than external CGI interfaces which must start a new process for each request. However, unlike mod_python, FastCGI supports [http://httpd.apache.org/docs/suexec.html Apache SuEXEC], i.e. run with different permissions than web server. Additionally, it is supported by much wider variety of web servers. 4 5 '''Note for Windows:''' Trac's FastCGI does not run under Windows, as Windows does not implement `Socket.fromfd`, which is used by `_fcgi.py`. If you want to connect to IIS, you may want to try [trac:TracOnWindowsIisAjp AJP]. 5 [http://www.fastcgi.com/ FastCGI] interface allows Trac to remain resident much like with [wiki:TracModPython mod_python] or [wiki:TracModWSGI mod_wsgi]. It is faster than external CGI interfaces which must start a new process for each request. Additionally, it is supported by much wider variety of web servers. 6 7 Note that unlike mod_python, FastCGI supports [http://httpd.apache.org/docs/suexec.html Apache SuEXEC], i.e. run with different permissions than web server running with (`mod_wsgi` supports the `WSGIDaemonProcess` with user / group parameters to achieve the same effect). 8 9 '''Note for Windows:''' Trac's FastCGI does not run under Windows, as Windows does not implement `Socket.fromfd`, which is used by `_fcgi.py`. If you want to connect to IIS, you may want to try [trac:TracOnWindowsIisAjp AJP]/[trac:TracOnWindowsIisAjp ISAPI]. 10 11 [[PageOutline(2-3,Overview,inline)]] 12 6 13 7 14 == Simple Apache configuration == … … 10 17 `mod_fcgid` (preferred). The latter is more up-to-date. 11 18 12 ==== setup with `mod_fastcgi` ==== 19 The following sections focus on the FCGI specific setup, see also [wiki:TracModWSGI#ConfiguringAuthentication] for configuring the authentication in Apache. 20 21 Regardless of which cgi module is used, be sure the web server has executable permissions on the cgi-bin folder. While FastCGI will throw specific permissions errors, mod_fcgid will throw an ambiguous error if this has not been done. (Connection reset by peer: mod_fcgid: error reading data from FastCGI server) 22 23 === Set up with `mod_fastcgi` === 13 24 `mod_fastcgi` uses `FastCgiIpcDir` and `FastCgiConfig` directives that should be added to an appropriate Apache configuration file: 14 25 {{{ … … 27 38 calling `trac.fcgi` instead of `trac.cgi`. 28 39 29 You canset up the `TRAC_ENV` as an overall default:40 Add the following to the Apache configuration file (below the `FastCgiIpcDir` line) if you intend to set up the `TRAC_ENV` as an overall default: 30 41 {{{ 31 42 FastCgiConfig -initial-env TRAC_ENV=/path/to/env/trac 32 43 }}} 33 44 34 Or you can serve multiple Trac projects in a directory like:45 Alternatively, you can serve multiple Trac projects in a directory by adding this: 35 46 {{{ 36 47 FastCgiConfig -initial-env TRAC_ENV_PARENT_DIR=/parent/dir/of/projects 37 48 }}} 38 49 39 === = setup with `mod_fcgid` ====50 === Set up with `mod_fcgid` === 40 51 Configure `ScriptAlias` (see TracCgi for details), but call `trac.fcgi` 41 52 instead of `trac.cgi`. Note that slash at the end - it is important. … … 44 55 }}} 45 56 46 To set up Trac environment for `mod_fcgid` it is necessary to use57 To set up Trac environment for `mod_fcgid` it is necessary to use 47 58 `DefaultInitEnv` directive. It cannot be used in `Directory` or 48 59 `Location` context, so if you need to support multiple projects, try … … 53 64 }}} 54 65 55 === = alternative environment setup ====56 A better method to specify path to Trac environment i tto embed the path66 === alternative environment setup === 67 A better method to specify path to Trac environment is to embed the path 57 68 into `trac.fcgi` script itself. That doesn't require configuration of server 58 69 environment variables, works for both FastCgi modules … … 93 104 94 105 After doing this, we will just have to create a new rule managed by the SCGI handler to access Trac. It can be created in a new virtual server, trac.example.net for instance, and will only need two rules. The '''default''' one will use the SCGI handler associated to the previously created information source. 95 The second rule will be there to serve the few static files needed to correctly display the Trac interface. Create it as ''Directory rule'' for ''/c hrome/common'' and just set it to the ''Static files'' handler and with a ''Document root'' that points to the appropriate files: ''/usr/share/trac/htdocs/''106 The second rule will be there to serve the few static files needed to correctly display the Trac interface. Create it as ''Directory rule'' for ''/common'' and just set it to the ''Static files'' handler and with a ''Document root'' that points to the appropriate files: ''$TRAC_LOCAL/htdocs/'' (where $TRAC_LOCAL is a directory defined by the user or the system administrator to place local trac resources). 96 107 97 108 Note:\\ … … 101 112 sudo apt-get install python-flup 102 113 }}} 114 103 115 104 116 == Simple Lighttpd Configuration == … … 130 142 using `bin-environment` (as in the section above on Apache configuration). 131 143 132 Note that lighttpd has a bug related to 'SCRIPT_NAME' and 'PATH_INFO' when the uri of fastcgi.server is '/' instead of '/trac' in this example , see #Trac2418. This should be fixed since lighttpd 1.4.23, and you may need to add `"fix-root-scriptname" => "enable"` as parameter of fastcgi.server.144 Note that lighttpd has a bug related to 'SCRIPT_NAME' and 'PATH_INFO' when the uri of fastcgi.server is '/' instead of '/trac' in this example (see [trac:#2418]). This should be fixed since lighttpd 1.4.23, and you may need to add `"fix-root-scriptname" => "enable"` as parameter of fastcgi.server. 133 145 134 146 For using two projects with lighttpd add the following to your `lighttpd.conf`: … … 159 171 Note that the above will result in different processes in any event, even 160 172 if both are running from the same `trac.fcgi` script. 173 161 174 {{{ 162 175 #!div class=important 163 176 '''Note''' It's very important the order on which server.modules are loaded, if mod_auth is not loaded '''BEFORE''' mod_fastcgi, then the server will fail to authenticate the user. 164 177 }}} 178 165 179 For authentication you should enable mod_auth in lighttpd.conf 'server.modules', select auth.backend and auth rules: 166 180 {{{ … … 210 224 server.modules += ("mod_alias") 211 225 212 # Set up an alias for the static resources226 # Set up an alias for the static resources 213 227 alias.url = ("/trac/chrome/common" => "/usr/share/trac/htdocs") 214 228 … … 276 290 For details about languages specification see [trac:TracFaq TracFaq] question 2.13. 277 291 278 Other important information like [http://trac.lighttpd.net/trac/wiki/TracInstall this updated TracInstall page], [wiki:TracCgi#MappingStaticResources and this] are useful for non-fastcgi specific installation aspects. 279 280 If you use trac-0.9, read [http://lists.edgewall.com/archive/trac/2005-November/005311.html about small bug] 292 Other important information like the [wiki:TracInstall#MappingStaticResources mapping static resources advices] are useful for non-fastcgi specific installation aspects. 293 ] 281 294 282 295 Relaunch lighttpd, and browse to `http://yourhost.example.org/trac` to access Trac. … … 284 297 Note about running lighttpd with reduced permissions: 285 298 286 299 If nothing else helps and trac.fcgi doesn't start with lighttpd settings `server.username = "www-data"`, `server.groupname = "www-data"`, then in the `bin-environment` section set `PYTHON_EGG_CACHE` to the home directory of `www-data` or some other directory accessible to this account for writing. 287 300 288 301 … … 292 305 293 306 !LiteSpeed web server is an event-driven asynchronous Apache replacement designed from the ground-up to be secure, scalable, and operate with minimal resources. !LiteSpeed can operate directly from an Apache config file and is targeted for business-critical environments. 294 295 === Setup ===296 307 297 308 1. Please make sure you have first have a working install of a Trac project. Test install with “tracd” first. … … 354 365 }}} 355 366 367 356 368 == Simple Nginx Configuration == 357 369 358 1. Nginx configuration snippet - confirmed to work on 0.6.32 370 Nginx is able to communicate with FastCGI processes, but can not spawn them. So you need to start FastCGI server for Trac separately. 371 372 1. Nginx configuration with basic authentication handled by Nginx - confirmed to work on 0.6.32 359 373 {{{ 360 374 server { … … 375 389 if ($uri ~ ^/(.*)) { 376 390 set $path_info /$1; 391 } 392 393 # it makes sense to serve static resources through Nginx 394 location /chrome/ { 395 alias /home/trac/instance/static/htdocs/; 377 396 } 378 397 … … 403 422 fastcgi_param SERVER_PORT $server_port; 404 423 fastcgi_param SERVER_PROTOCOL $server_protocol; 405 fastcgi_param QUERY_STRING $query_string; 406 407 # for authentication to work 424 fastcgi_param QUERY_STRING $query_string; 425 426 # For Nginx authentication to work - do not forget to comment these 427 # lines if not using Nginx for authentication 408 428 fastcgi_param AUTH_USER $remote_user; 409 429 fastcgi_param REMOTE_USER $remote_user; 430 431 # for ip to work 432 fastcgi_param REMOTE_ADDR $remote_addr; 433 434 # For attchments to work 435 fastcgi_param CONTENT_TYPE $content_type; 436 fastcgi_param CONTENT_LENGTH $content_length; 410 437 } 411 438 }
