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Introduction to GitLab Docker

Basically, GitLab provides different types of services to the user, in which GitLab docker is one of the services provided by GitLab. Normally GitLab docker is an image and it is monolithic views that are provided by the GitLab to the user. Basically, the monolithic view means it provides all required services in a single container instead of any other application such as Kubernetes. The GitLab docker is allowing for mail transport agents but we can add it into a separate container to send mail. We also have another option for this problem is that we install a mail transport agent directly on the GitLab container.

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What is GitLab Docker?

Docker is an open stage for making, conveying, and running applications. Docker engages you to confine your applications from your establishment so you can pass on programming quickly. With docker, you can manage your structure in similar habits as you manage your applications. By exploiting docker’s strategies for transportation, testing, and sending code rapidly, you can fundamentally decrease the postponement between composing code and running it underway.

GitLab docker is an electronic DevOps lifecycle device that gives an alternate Git storehouse, issue-following, and consistent incorporation and organization pipeline highlights, utilizing an open-source permit, created by GitLab. The open-source programming project was made by Ukrainian designers Dmitriy Zaporozhets and Valery Size.

It follows an open-centre improvement model where the center usefulness is delivered under an open-source (MIT) permit while the extra usefulness, for example, code proprietors, numerous issue appointees, reliance examining, and bits of knowledge are under a restrictive permit.

How to Install GitLab with Docker

We need to follow the different steps to install the docker as follows:

For the installation of Gitlab runner, we need to use the following command as follows:

In a second step, we need to install the Docker images and start the actual container. In this step we need to run the GitLab runner inside the container of docker, if the configuration is not set then it will restart the docker container.

Now let’s see how to restart the runner container by using local system volume.

To restart the runner container we need to configure some other resources mentioned below:

They mentioned all resources to put from the official website of GitLab.

docker run -d –specified name of gitlab-runner --restart always -v /srv/gitlab-runner/config:/etc/gitlab-runner -v chúng tôi gitlab/gitlab-runner:latest

We have one more option to restart the runner container, which is that we can use Docker volume.

In this option, we need to follow the same step as follows:

1. First, we need to create the docker volume by using the following command.

Code:

docker volume create gitlab-runner-config

2. In the second step, we need to start the GitLab runner container.

3. In the final step, we need to register the new runner.

After registration, we need to configure the runner and restart the GitLab runner by using the following command.

docker restart gitlab-runner

So we are able to read the Gitlab runner logs as per the requirement.

Create your First Project GitLab Docker

Given below shows how we can create the gitlab docker project as follows:

Code:

sudo docker run --detach --hostname (specified hostname ) --name gitlab --restart always --volume $GITLAB_HOME/config:/etc/gitlab --volume $GITLAB_HOME/logs:/var/log/gitlab --volume $GITLAB_HOME/data:/var/opt/gitlab

After that, we need to log in to GitLab by using a valid credential and after successful login on GitLab, it shows the different options as shown in the following screenshot.

Output:

After that, we can add the different files that we want by using command-line instructions.

Steps of GitLab Docker

The below screenshot shows the docker home page as follows.

In the next step, we need to create the GitLab pipeline by using the new file option and assign the name that we want as shown in the below screenshot.

Conclusion

From the above article, we have taken in the essential idea of the Gitlab docker and we also saw the representation of the Gitlab docker. From this article, we saw how and when we use the Gitlab docker.