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

Copying

git-auth - restrict git commands

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

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