GIT-AUTH

Synopsis

GIT_AUTH_ID=ID git-auth COMMAND [ARGS ...]</td>

Description

git-auth starts by reading rules from /etc/git/auth.conf, one rule per line. Empty lines and lines starting with # are ignored. Each rule is made of tokens separated by one or more spaces.

git-auth executes COMMAND and ARGS using execvp if the requested ID, COMMAND and ARGS match any of the rules defined in /etc/git/auth.conf.

git-auth matches a rule by matching all the rule’s tokens with ID, COMMAND and ARGS in order. Comparison is case sensitive.

A wildcard token “*” matches any string.

Environment

• GIT_AUTH_ID : an arbitrary token to match with the rules. This is usually set for each public key in /home/git/.ssh/authorized_keys with environment=”GIT_AUTH_ID=…” ssh-rsa …

Configuration

Access control rules for each git repository go into /etc/git/auth.conf.

The syntax of this file is one rule per line. Each rule is composed of symbols separated by spaces. In order :

• A GIT_AUTH_ID value that was set in /home/git/.ssh/authorized_keys.
• A git-shell command : either git-upload-pack for read access, or git-receive-pack for write access.
• A repository path, relative to /home/git, example: thodg/config.git

Files

• /etc/git/auth.conf
• /home/git/.ssh/authorized_keys

See also

kmxgit is a web interface on top of git-auth written in Elixir / Phoenix.

Copying

git-auth - restrict git commands

Copyright 2012,2021 Thomas de Grivel thoxdg@gmail.com

Permission to use, copy, modify, and distribute this software for any purpose with or without fee is hereby granted, provided that the above copyright notice and this permission notice appear in all copies.

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