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# GitLab Docker images
## 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.
Learn more on [https://about.gitlab.com](https://about.gitlab.com)
## After starting a container
After starting a container you can 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.
It might take a while before the docker container is responding to queries.
You can check the status with something like `sudo docker logs -f gitlab`.
You can login to the web interface with username `root` and password `password`.
Next time, you can just use docker start and stop to run the container.
## Run the image
Run the image:
```bash
sudo docker run --detach \
--publish 80443:443 --publish 8080:80 --publish 2222:22 \
--name gitlab \
--restart always \
--volume /srv/gitlab/config:/etc/gitlab \
--volume /srv/gitlab/logs:/var/log/gitlab \
--volume /srv/gitlab/data:/var/opt/gitlab \
gitlab/gitlab-ce:latest
```
This will start GitLab CE container and expose ports needed to access SSH, HTTP and HTTPS.
All GitLab data will be stored as subdirectories of `/srv/gitlab/`.
The container will automatically `restart` after system reboot.
After this you can login to the web interface as explained above in 'After starting a container'.
## Build and publish the image
This guide will also let you know how to build docker image yourself.
Please run all the commands from the GitLab repo root directory.
People using boot2docker should run all the commands without sudo.
```bash
sudo docker build --tag gitlab/gitlab-ce:latest
```
## Where is the data stored?
The GitLab container uses host mounted volumes to store persistent data:
- `/srv/gitlab/data` mounted as `/var/opt/gitlab` in the container is used for storing *application data*
- `/srv/gitlab/logs` mounted as `/var/log/gitlab` in the container is used for storing *logs*
- `/srv/gitlab/config` mounted as `/etc/gitlab` in the container is used for storing *configuration*
You can fine tune these directories to meet your requirements.
### 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 bash in a new the context of running container, you will be able to browse all directories and use your favorite text editor:
```bash
sudo docker exec -it gitlab /bin/bash
```
You can also edit just `/etc/gitlab/gitlab.rb`:
```bash
sudo docker exec -it gitlab vi /etc/gitlab/gitlab.rb
```
**You should set the `external_url` to point to a valid URL.**
**To receive e-mails from GitLab you have to configure the [SMTP settings](https://gitlab.com/gitlab-org/omnibus-gitlab/blob/master/doc/settings/smtp.md),
because Docker image doesn't have a SMTP server.**
**Note** that GitLab will reconfigure itself **at each container start.** You will need to restart the container to reconfigure your GitLab:
```bash
sudo docker restart gitlab
```
For more options for configuring the container please check [Omnibus GitLab documentation](https://gitlab.com/gitlab-org/omnibus-gitlab/blob/master/README.md#configuration).
## Diagnose potential problems
Read container logs:
```bash
sudo docker logs gitlab
```
Enter running container:
```bash
sudo docker exec -it gitlab /bin/bash
```
From within container you can administrer GitLab container as you would normally administer Omnibus installation: https://gitlab.com/gitlab-org/omnibus-gitlab/blob/master/README.md.
### Upgrade GitLab to newer version
To upgrade GitLab to new version you have to do:
1. pull new image,
```bash
sudo docker stop gitlab
```
1. stop running container,
```bash
sudo docker rm gitlab
```
1. remove existing container,
```bash
sudo docker pull gitlab/gitlab-ce:latest
```
1. create the container once again with previously specified options.
```bash
sudo docker run --detach \
--publish 80443:443 --publish 8080:80 --publish 2222:22 \
--name gitlab \
--restart always \
--volume /srv/gitlab/config:/etc/gitlab \
--volume /srv/gitlab/logs:/var/log/gitlab \
--volume /srv/gitlab/data:/var/opt/gitlab \
gitlab/gitlab-ce:latest
```
On the first run GitLab will reconfigure and update itself.
### Run GitLab CE on public IP address
You can make Docker to use your IP address and forward all traffic to the GitLab CE container.
You can do that by modifying the `--publish` ((Binding container ports to the host)[https://docs.docker.com/articles/networking/#binding-ports]):
> --publish=[] : Publish a container᾿s port or a range of ports to the host format: ip:hostPort:containerPort | ip::containerPort | hostPort:containerPort | containerPort
To expose GitLab CE on IP 1.1.1.1:
```bash
sudo docker run --detach \
--publish 1.1.1.1:443:443 --publish 1.1.1.1:80:80 --publish 1.1.1.1:22:22 \
--name gitlab \
--restart always \
--volume /srv/gitlab/config:/etc/gitlab \
--volume /srv/gitlab/logs:/var/log/gitlab \
--volume /srv/gitlab/data:/var/opt/gitlab \
gitlab/gitlab-ce:latest
```
You can then access GitLab instance at http://1.1.1.1/ and https://1.1.1.1/.
### Publish images to Dockerhub
- Ensure the containers are running
- Login to Dockerhub with `sudo docker login`
```bash
sudo docker login
sudo docker push gitlab/gitlab-ce:latest
```
## Troubleshooting
Please see the [troubleshooting](troubleshooting.md) file in this directory.
|
