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Title       : 	Shared Git repository over ssh for multiple users
Author      : 	Remy van Elst
Date        : 	05-01-2015
URL         : 	https://raymii.org/s/tutorials/Shared_Git_repository_via_ssh_for_multiple_users.html
Format      : 	Markdown/HTML
This tutorial will show you how to set up a shared git repo with multiple
accounts over ssh. Only ssh, not gitolite or any other software. This is usefull
if you have a small team of people that don't often need access to the repo and
don't want something like github or bitbucket. With this you can use existing

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I have used this for a sysadmin team which had a few scripts scattered.
### Folders and Permissions
First set up a new group for the users of the repository. You can use the
groupadd command but I find it easier to edit `/etc/group` and add a line line
Do note that all the users you add above should have an account on the system.
(`adduser user/useradd user`)
Now create a folder to house the repo's:
    mkdir -p /var/git/repository1
Then change the group permissions on that folder:
    chgrp gitusers /var/git/repository1
    chmod g+ws /var/git/repository1
### Repository
We can now create the repository. Navigate to the folder and initialize the
    cd /var/git/repository
    git init --bare --shared=group
That's it. Now you can clone, pull, push and commit the repo like normal:
    git clone git+ssh://user1@gitserver/var/git/repository1
### Script
A simple script which makes the above easier. This assuming the group is
`gitusers` and the root path is `/var/git/`.
    if [[ -z "$1" ]]; then
        echo "You must specify a repo name"
        echo "./$0 repo_name"
        exit 1
    mkdir "${PATH}/$1"
    chgrp "${GITGROUP}" "${PATH}/$1"
    chmod 2775 "${PATH}/$1"
    pushd "${PATH}/$1"
    git init --bare --shared=group
    echo "Created repo $1."
    echo "Clone URL: git+ssh://$(hostname -f)${PATH}/$1"
If you need to trigger a Jenkins build after a commit you can add the following
[`post-receive` hook][2].
   [1]: https://www.digitalocean.com/?refcode=7435ae6b8212
   [2]: https://github.com/mika/jenkins-debian-glue/blob/master/git/post-receive
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