Howto Nginx + git-http-backend + fcgiwrap (Debian Squeeze)

Question

I am trying to setup git-http-backend with Nginx but after 24 hours wasting time and reading everything I could I think this config should work but doesn't.

 server { listen 80; server_name mydevserver; access_log /var/log/nginx/dev.access.log; error_log /var/log/nginx/dev.error.log; location / { root /var/repos; } location ~ /git(/.*) { gzip off; root /usr/lib/git-core; fastcgi_pass unix:/var/run/fcgiwrap.socket; include /etc/nginx/fastcgi_params2; fastcgi_param SCRIPT_FILENAME /usr/lib/git-core/git-http-backend; fastcgi_param DOCUMENT_ROOT /usr/lib/git-core/; fastcgi_param SCRIPT_NAME git-http-backend; fastcgi_param GIT_HTTP_EXPORT_ALL ""; fastcgi_param GIT_PROJECT_ROOT /var/repos; fastcgi_param PATH_INFO $1; #fastcgi_param PATH_TRANSLATED $document_root$fastcgi_path_info; } } 

Content of /etc/nginx/fastcgi_params2

 fastcgi_param QUERY_STRING $query_string; fastcgi_param REQUEST_METHOD $request_method; fastcgi_param CONTENT_TYPE $content_type; fastcgi_param CONTENT_LENGTH $content_length; fastcgi_param SCRIPT_NAME $fastcgi_script_name; fastcgi_param REQUEST_URI $request_uri; fastcgi_param DOCUMENT_URI $document_uri; fastcgi_param DOCUMENT_ROOT $document_root; fastcgi_param SERVER_PROTOCOL $server_protocol; fastcgi_param GATEWAY_INTERFACE CGI/1.1; fastcgi_param SERVER_SOFTWARE nginx/$nginx_version; fastcgi_param REMOTE_ADDR $remote_addr; fastcgi_param REMOTE_PORT $remote_port; fastcgi_param SERVER_ADDR $server_addr; fastcgi_param SERVER_PORT $server_port; fastcgi_param SERVER_NAME $server_name; fastcgi_param REMOTE_USER $remote_user; # required if PHP was built with --enable-force-cgi-redirect fastcgi_param REDIRECT_STATUS 200; 

but config seems not working

 $ git clone http://mydevserver/git/myprojectname/ Cloning into myprojectname... warning: remote HEAD refers to nonexistent ref, unable to checkout. 

and I can request an unexistant project and I will get the same answer

 $ git clone http://mydevserver/git/thisprojectdoesntexist/ Cloning into thisprojectdoesntexist... warning: remote HEAD refers to nonexistent ref, unable to checkout. 

If I change root to /usr/lib I will get a 403 error and this will be reported to nginx error log:

 2011/11/23 15:52:46 [error] 5224#0: *55 FastCGI sent in stderr: "Cannot get script name, is DOCUMENT_ROOT and SCRIPT_NAME set and is the script executable?" while reading response header from upstream, client: 198.168.0.4, server: mydevserver, request: "GET /git/myprojectname/info/refs HTTP/1.1", upstream: "fastcgi://unix:/var/run/fcgiwrap.socket:", host: "mydevserver" 

My main trouble is with the correct root value with this configuration. Maybe there are some permissions problems.

Notes:

• /var/repos/ is owned by www-data and contains folders bit git bare repos.

• All this works perfectly using ssh.

• If I go with my browser to http://mydevserver/git/myproject/info/refs it is answered by git-http-backend asking me to send a command.

• /var/run/fcgiwrap.socket has 777 permissions.

Answer 1

move down fastcgi_pass ; it should be the latest line.

First you should set parameters, only then fastcgi_pass, otherwise you will not get set environment.

fastcgi_pass unix:/var/run/fcgiwrap.socket;

Answer 2

Try to change the order between the two lines in your config file:

include /etc/nginx/fastcgi_params2; fastcgi_param SCRIPT_FILENAME /usr/lib/git-core/git-http-backend; 

Answer 3

This is probably a bug with the version of fcgiwrap found on debian squeeze (1.0-1+squeeze1). See http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=698071

Upgrading to fcgiwrap 1.0.3-3 (found in debian testing) solved the issue for me. Here is the config I used (note I did not need to define "root"):

server { listen 80; server_name mydevserver; access_log /var/log/nginx/dev.access.log; error_log /var/log/nginx/dev.error.log; location ~ /git(/.*) { gzip off; fastcgi_pass unix:/var/run/fcgiwrap.socket; include /etc/nginx/fastcgi_params2; fastcgi_param SCRIPT_FILENAME /usr/lib/git-core/git-http-backend; fastcgi_param GIT_HTTP_EXPORT_ALL ""; fastcgi_param GIT_PROJECT_ROOT /var/repos; fastcgi_param PATH_INFO $1; } }