What is GitLab?
===============

GitLab offers git repository management, code reviews, issue tracking, activity feeds, wikis. It has LDAP/AD integration, handles 25,000 users on a single server but can also run on a highly available active/active cluster. A subscription gives you access to our support team and to GitLab Enterprise Edition that contains extra features aimed at larger organizations.

Learn more on [https://about.gitlab.com](https://about.gitlab.com)


How to build and use images yourself
======================

At this moment GitLab doesn't have official Docker images.
There are unofficial images at the bottom of this document.
But in this section we'll build our own.
For convinience we will use suffix _xy where xy is current version of GitLab.
Build your own based on the Omnibus packages with the following commands.
Run these from the GitLab repo root directory.
People using boot2docker should run it without sudo.

```bash
sudo docker build --tag gitlab_data_image docker/data/
sudo docker build --tag gitlab_app_image_xy docker/
```

We assume using a data volume container, this will simplify migrations and backups.
This empty container will exist to persist as volumes the 3 directories used by GitLab, so remember not to delete it.

The directories on data container are:

- `/var/opt/gitlab` for application data
- `/var/log/gitlab` for logs
- `/etc/gitlab` for configuration

Create the data container with:

```bash
sudo docker run --name gitlab_data gitlab_data_image /bin/true
```

After creating data container run GitLab container:

```bash
sudo docker run --detach --name gitlab_app_xy --publish 8080:80 --publish 2222:22 --volumes-from gitlab_data gitlab_app_image_xy
```

It might take a while before the docker container is responding to queries. You can follow the configuration process with `sudo docker logs -f gitlab_app_xy`.

You can then go to [http://localhost:8080/](http://localhost:8080/) or [http://192.168.59.103:8080/](http://192.168.59.103:8080/) if you use boot2docker.

You can login with username `root` and password `5iveL!fe`.
Next time, you can just use `sudo docker start gitlab_app` and `sudo docker stop gitlab_app`.

How to configure GitLab
========================

This container uses the official Omnibus GitLab distribution, so all configuration is done in the unique configuration file `/etc/gitlab/gitlab.rb`.

To access GitLab configuration, you can start an interactive command line in a new container using the shared data volume container, you will be able to browse the 3 directories and use your favorite text editor:

```bash
sudo docker run -ti -e TERM=linux --rm --volumes-from gitlab_data ubuntu
vi /etc/gitlab/gitlab.rb
```

**Note** that GitLab will reconfigure itself **at each container start.** You will need to restart the container to reconfigure your GitLab.

You can find all available options in [Omnibus GitLab documentation](https://gitlab.com/gitlab-org/omnibus-gitlab/blob/master/README.md#configuration).

How to upgrade GitLab
========================

To updgrade GitLab to new versions, stop running container, create new docker image and container from that image.

It Assumes that you're upgrading from 7.8 to 7.9 and you're in the updated GitLab repo root directory:

```bash
sudo docker stop gitlab_app_78
sudo docker build --tag gitlab_app_image_79 docker/
sudo docker run --detach --name gitlab_app_79 --publish 8080:80 --publish 2222:22 --volumes-from gitlab_data gitlab_app_image_79
```

On the first run GitLab will reconfigure and update itself. If everything runs OK don't forget to cleanup old container and image:

```bash
sudo docker rm gitlab_app_78
sudo docker rmi gitlab_app_image_78
```

Troubleshooting
=========================
Please see the [troubleshooting](troubleshooting.md) file in this directory.


Publish the images to Dockerhub
=========================
Login to Dockerhub with `sudo docker login` and run the following (replace '7.9.2' with the version you're using and 'Sytse Sijbrandij' with your name):

```bash
sudo docker commit -m "Initial commit" -a "Sytse Sijbrandij" gitlab_app_xy sytse/gitlab-ce:7.9.2
sudo docker push sytse/gitlab-ce:7.9.2
sudo docker commit -m "Initial commit" -a "Sytse Sijbrandij" gitlab_data sytse/gitlab_data
sudo docker push sytse/gitlab_data
```

Use images published to Dockerhub
================================
This examples uses the unofficial images made by GitLab CEO Sytse.

```bash
sudo docker pull sytse/gitlab_data
sudo docker pull sytse/gitlab-ce:7.9.2
sudo docker run --name gitlab_data_volume sytse/gitlab_data /bin/true
sudo docker run --detach --name gitlab_app_7_9_2 --publish 8080:80 --publish 2222:22 --volumes-from gitlab_data_volume sytse/gitlab-ce:7.9.2
```