Fcgiwrap

fcgiwrap(8) is a simple wrapper script around a FastCGI implementation. It comes from the Lighttpd project.

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Installation

Most Linux distributions offer a fcgiwrap package. Consider also installing spawn-fcgi.

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Setup

Enable and start fcgiwrap.socket.

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Usage

Nginx

See here for details.

Upstream recommends using spawn-fcgi(1), rather than fcgiwrap(8) directly. With it, no configuration is necessary and the server can be started like:

spawn-fcgi -n -u www-data -p 9000 -- /usr/bin/fcgiwrap -f

Similarly, if using a container to serve a FastCGI server, try:

FROM alpine:latest
RUN apk add spawn-fcgi fcgiwrap
COPY myapp /myapp
EXPOSE 9000
WORKDIR /myapp
CMD spawn-fcgi -n -p 9000 -- /usr/bin/fcgiwrap -f

See here for details.

Path_Info

Upstream has noted that fcgiwrap(8) was written before Nginx offered fastcgi_split_path_info.

"PATH_INFO passed from the web server is ignored and instead is parsed out of SCRIPT_FILENAME (or DOCUMENT_ROOT + SCRIPT_NAME)."

So, the solution is to...

1. set these variables directly

2. copy fastcgi_params to fcgiwrap_params and comment out the lines that set DOCUMENT_ROOT and SCRIPT_NAME.

    include       fcgiwrap_params;

    fastcgi_param SCRIPT_FILENAME /usr/libexec/git-core/git-http-backend;
    #or
    fastcgi_param DOCUMENT_ROOT /usr/libexec/git-core/
    fastcgi_param SCRIPT_NAME   git-http-backend

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