Gitlab-runner Docker-in-Docker

1. Can I run docker inside docker?
2. Can I run GitLab runner locally?
3. Can GitLab run in a container?
4. Can Run docker container in another container?
5. When should we not use docker and docker?
6. Is GitLab docker free?
7. How do you name a container when a docker is running?
8. How do I run a docker container and keep it running?
9. How do I use specific GitLab runner?
10. Is GitLab runner a server?
11. What is GitLab runner vs GitLab?
12. Does GitLab runner use SSH?
13. Is GitLab runner free?
14. How many GitLab runners do I need?
15. How does GitLab communicate with runner?

Can I run docker inside docker?

We can use this method When only if you really want the containers and images inside the container. Otherwise, We should use the above approach. We will use the docker official image with the dind tag. This tag dind image comes with the all required utilities for docker to run the docker inside.

Can I run GitLab runner locally?

GitLab Runner commands

'gitlab-Runner exec' command is the command that easily lets you test builds locally. It allows the jobs specified in . gitlab-ci. yml to run locally!

Can GitLab run in a container?

In a nutshell, GitLab services provide you a way to start additional Docker containers and to link them to your image (whatever you have specified in with the image keyword). One of the most typical use cases is when you need a database, an API, or some other service that you can call over the network.

Can Run docker container in another container?

It is possible to grant a container access to docker so that it can spawn other containers on your host. You do this by exposing the docker socket inside the container, e.g: docker run -v /var/run/docker. sock:/var/run/docker.

When should we not use docker and docker?

Docker is very useful for web applications running on a server or console-based software. But if your product is a standard desktop application, especially with a rich GUI, Docker may not be the best choice.

Is GitLab docker free?

GitLab Docker images (FREE SELF)

How do you name a container when a docker is running?

When a container is created using Docker, Docker provides a way to name the container using the the --name <container_name> flag. However, if no name is provided by the user while creating/running a Docker container, Docker automatically assigns the container a name.

How do I run a docker container and keep it running?

The simplest way to keep the container running is to pass a command that never ends. We can use never-ending commands in any of the following ways: ENTRYPOINT or CMD directive in the Dockerfile. Overriding ENTRYPOINT or CMD in the docker run command.

How do I use specific GitLab runner?

Registering a specific Runner with a project registration token. To create a specific Runner without having admin rights to the GitLab instance, visit the project you want to make the Runner work for in GitLab: Go to Settings ➔ CI/CD to obtain the token. Register the Runner.

Is GitLab runner a server?

GitLab runner is a build instance which is used to run the jobs over multiple machines and send the results to GitLab and which can be placed on separate users, servers, and local machine. You can register the runner as shared or specific after installing it.

What is GitLab runner vs GitLab?

GitLab Job: the smallest component of a pipeline, which contains one or more commands that need to be executed. GitLab Runner: this is an agent installed on a different server from the GitLab server. The GitLab Runner receives instructions from the GitLab server in regards to which jobs to run.

Does GitLab runner use SSH?

You can generate the SSH key from the machine that GitLab Runner is installed on, and use that key for all projects that are run on this machine. First, you need to login to the server that runs your jobs.

Is GitLab runner free?

Free features:

10GB transfer per month [2] 400 CI/CD minutes per month. 5 users per namespace [4]

How many GitLab runners do I need?

You can have one gitlab runner for all stages. The build job would then be picked up by any gitlab runner that you have defined that has the tag build .

How does GitLab communicate with runner?

Runners communicate with GitLab over HTTPS, entirely through connections initiated from the Runner to GitLab and never in reverse. The advantage here is that you can install a Runner behind a firewall and as long as the Runner has outbound access to GitLab.com it will work.