[image] hack3rcon:
How many resources does GitLab Runner need in Docker?
It’s in the Gitlab documentation. You should be looking there before asking questions for things that can easily be found using tools like google: Installation system requirements | GitLab
And as I already said, it doe… Answer from iwalker on forum.gitlab.com
GitLab
docs.gitlab.com › gitlab docs › install › install gitlab runner › docker
Run GitLab Runner in a container | GitLab Docs
Run the gitlab-runner Docker image by using the docker run -d [options] <image-uri> <runner-command> command. When you run gitlab-runner in a Docker container, ensure the configuration is not lost when you restart the container. Mount a permanent volume to store the configuration.
Medium
medium.com › @tonywooster › docker-in-docker-in-gitlab-runners-220caeb708ca
Docker-in-Docker in Gitlab Runners | by Tony Wooster | Medium
January 31, 2018 - To get started, let’s create a network for it to exist in: ... # docker run -d \ --name gitlab-dind \ --privileged \ --restart always \ --network gitlab-runner-net \ -v /var/lib/docker \ docker:17.06.0-ce-dind \ --storage-driver=overlay2
GitLab Runner in Docker
I’d suggest setting up your runners using the docker executor - https://docs.gitlab.com/runner/executors/docker.html This allows your runner to start up fresh containers for jobs with the image you specify, meaning jobs aren’t running on the host and can have whatever you need. You can then also use a single runner with parallelism instead of multiple runners. Downside is that if you need to install extras they will need to install as part of the CI on every job. More on reddit.com
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August 31, 2023A few questions about GitLab Runner and Docker
Hello, In the GitLab Runner documentation it was written that it should be installed on a separate server from the GitLab server. 1- Can I install it alongside the Docker server or do I have to dedicate a separate server to it? 2- Is it better to install it as a container or an application? More on forum.gitlab.com
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April 9, 2024Struggling with Gitlab dind
They cover it here: https://docs.gitlab.com/ee/ci/docker/using_docker_build.html However, as you are finding out, there are a lot of moving pieces. From what you've shown, definitely need to make it a privileged container. Also, it appears you are trying to simplify things and disable TLS, which is not possible if you are using Docker CE v20+. What version of docker are you using? Really pay attention to GitLab's direction on using TLS, you'll need both the service and build container to have the same /certs mount available to them. Some things in relation to this, is you'd need the build image to set these variables: DOCKER_HOST=tcp://docker:2376 DOCKER_TLS_CERTDIR='/certs' DOCKER_CERT_PATH='/certs/client' DOCKER_TLS_VERIFY='1' While you are not using the k8s executor, their instructions on this helped me a lot here, and the principles apply when using the docker executor: https://docs.gitlab.com/ee/ci/docker/using_docker_build.html#use-the-kubernetes-executor-with-docker-in-docker More on reddit.com
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May 30, 2023Help with Docker in GitLab CI: "Cannot connect to the Docker daemon"
I dont know much about Gitlab but tcp://docker:2375/ Have you enabled the TCP API in your Docker host? These are conflicting, you write you attempt to use the socket, but this option says TCP. More on reddit.com
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October 2, 202413:12
GitLab CI/CD - Установка своего DOCKER GitLab Runner ...
Choosing the Right GitLab Executor: Docker-in- ...
11:01
Register Docker Runner/Executor with GitLab Server to Run Pipelines ...
How to Configure GitLab Runner with Docker Executor | Day 6 - YouTube
11:01
Register Docker Runner/Executor with GitLab Server to Run ...
How to register & run GitLab Runner inside a Docker container
Docker Hub
hub.docker.com › r › gitlab › gitlab-runner
gitlab/gitlab-runner - Docker Image
gitlab/gitlab-runner:latest is image that can be used to run GitLab Runner in container.
Reddit
reddit.com › r/gitlab › gitlab runner in docker
r/gitlab on Reddit: GitLab Runner in Docker
August 31, 2023 -
Hi all,
We recently moved to GitLab, and I am tasked with setting up the testing stuff for our pipeline.
We had gitlab runners recently installed on our server, but I am running into some problems. I’m new to all this, so while reading documentation has been helpful, I’m still unsure on a lot of things.
The Gitlab-Runner is installed and registered on 3 separate docker containers in the server (so 3 runners total)
The docker containers use the official docker alpine gitlab runner image
The Gitlab-Runner is in shell executor mode
When I run my script through gitlab-ci, I am getting command not found for sudo, apt, node, npm, docker, etc.
From what i can tell, that’s because the runner is running the CI script directly in the docker container from the official images, which do not have any of these installed.
So even if I switch from shell executor to docker executor, this would not work since the official runner image doesn’t have docker installed correct?
Is the correct path here to start docker containers with gitlab runners registered in it, but the docker container itself needs to be docker in docker? Is the official gitlab runner alpine image able to run in docker in docker?
Top answer 1 of 4
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I’d suggest setting up your runners using the docker executor - https://docs.gitlab.com/runner/executors/docker.html This allows your runner to start up fresh containers for jobs with the image you specify, meaning jobs aren’t running on the host and can have whatever you need. You can then also use a single runner with parallelism instead of multiple runners. Downside is that if you need to install extras they will need to install as part of the CI on every job.
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Can you pass the docker API socket to the runner containers so they can run new containers with the job using the Docker executer?
GitLab
docs.gitlab.com › gitlab docs › use gitlab › use ci/cd to build your application › jobs › docker › use docker to build docker images
Use Docker to build Docker images | GitLab Docs
You can now use docker commands (and install Docker Compose if needed). When you add gitlab-runner to the docker group, you effectively grant gitlab-runner full root permissions.
OneUptime
oneuptime.com › home › blog › how to set up docker with gitlab ci runner
How to Set Up Docker with GitLab CI Runner
January 16, 2026 - # Run GitLab Runner in Docker docker run -d \ --name gitlab-runner \ --restart always \ -v /srv/gitlab-runner/config:/etc/gitlab-runner \ -v /var/run/docker.sock:/var/run/docker.sock \ gitlab/gitlab-runner:latest
GitHub
github.com › soerenmetje › docker-gitlab-runner
GitHub - soerenmetje/docker-gitlab-runner: Run a Gitlab runner inside a Docker container · GitHub
Run a Gitlab runner inside a Docker container. Contribute to soerenmetje/docker-gitlab-runner development by creating an account on GitHub.
Author: soerenmetje
GitLab
docs.gitlab.com › gitlab docs › administer › administer gitlab runner › runner executors › docker
Docker executor | GitLab Docs
GitLab Runner uses the Docker executor to run jobs on Docker images. ... Maintain the same build environment for each job. Use the same image to test commands locally without the requirement of running a job in the CI server.
GitLab
forum.gitlab.com › gitlab ci/cd
A few questions about GitLab Runner and Docker - GitLab CI/CD - GitLab Forum
April 9, 2024 - Hello, In the GitLab Runner documentation it was written that it should be installed on a separate server from the GitLab server. 1- Can I install it alongside the Docker server or do I have to dedicate a separate serv…
Datawookie
datawookie.dev › blog › 2021 › 03 › install-gitlab-runner-with-docker
Install GitLab Runner with Docker – datawookie
March 21, 2021 - More information about the GitLab Runner can be found here. ... To register a runner, use the register command. docker exec -it gitlab-runner gitlab-runner register
TestDriven.io
testdriven.io › blog › gitlab-ci-docker
Deploying Self-Hosted GitLab CI Runners with Docker | TestDriven.io
October 29, 2021 - If you run into issues with Docker Compose hanging, review this Stack Overflow question. Next, you'll need to obtain a registration token and URL. Within your group's "CI/CD Settings", expand the "Runners" section. Be sure to disable the shared runners as well. Run the following command to register a new runner, making sure to replace <YOUR-GITLAB-REGISTRATION-TOKEN> and <YOUR-GITLAB-URL> with your group's registration token and URL:
GitLab
docs.gitlab.com › gitlab docs › use gitlab › use ci/cd to build your application › jobs › docker › run ci/cd jobs in docker containers
Run your CI/CD jobs in Docker containers | GitLab Docs
The registered runner uses the ruby:2.6 Docker image and runs two services, postgres:latest and mysql:latest, both of which are accessible during the build process. The image keyword is the name of the Docker image the Docker executor uses to run CI/CD jobs. By default, the executor pulls images ...
Hiebl
blog.hiebl.cc › posts › gitlab-runner-docker-in-docker
Setting up Docker in Docker (dind/socket) with GitLab Runners - Basti's Buggy Blog
June 2, 2022 - GitLab’s Continuos Integration ... environment. Whereas in the Shell Runner commands are executed directly on the runner host, the Docker Runner spawns a new Docker container for each job....
Ward
ward.nl › blog › setting-up-gitlab-runner-build-docker-images
Setting up GitLab Runner to build Docker images | Ward Pieters
November 4, 2025 - If jobs fail to connect to the dind service, make sure your GitLab Runner is registered and the runner's Docker daemon supports the dind setup (privileged mode, matching docker versions). Use DOCKER_TLS_CERTDIR to enable TLS between the client and the dind service and mount the certs via the runner volumes setting. For faster builds, use build cache (--cache-from) or set up a dedicated cache registry. If you don't need multi-platform buildx features, you can simplify to docker build --push instead of buildx.
Docker Hub
hub.docker.com › r › gitlab › gitlab-runner › dockerfile
Dockerfile - gitlab/gitlab-runner
FROM ubuntu:14.04 ADD ... https://packages.gitlab.com/gpg.key | apt-key add - && \ apt-get update -y && \ apt-get install -y gitlab-ci-multi-runner && \ wget -q https://github.com/docker/machine/releases/download/v0.7.0/docker-machine-Linux-x86_64 -O /usr/bin/docker-machine ...
Kitemetric
kitemetric.com › blogs › run-gitlab-runner-in-docker-ci-cd-made-easy
🚀 Run GitLab Runner in Docker: CI/CD Made Easy | Kite Metric
In GitLab, navigate to CI/CD > Runners. Select New instance runner. Specify tags to filter jobs that this runner will execute. Example: yuit-runner-tag · Provide a description for the runner (e.g., "Runner of docker container").
Medium
medium.com › pickme-engineering-blog › setting-up-a-gitlab-runner-using-docker-in-a-virtual-machine-fbf3d90d110e
Setting Up a GitLab Runner Using Docker in a Virtual Machine | by Dilshan Dilip Udara | The PickMe Engineering Blog | Medium
February 11, 2025 - docker run --rm -it \ -v /srv/gitlab-runner/config:/etc/gitlab-runner \ gitlab/gitlab-runner:latest register ... Once completed, the runner will be registered in GitLab.
Medium
medium.com › @BuildWithLal › dockerized-gitlab-ci-setting-up-and-connecting-your-gitlab-runner-b810a02e42f2
Dockerized GitLab CI: Setting Up and Connecting Your GitLab Runner | by Lal Zada | Medium
October 10, 2024 - We are adding a new service to the docker-compose.yml for GitLab runner which will use the docker image gitlab/gitlab-runner:alpine from the docker hub. We are setting network_mode to host for the GitLab runner container which will put the GitLab runner container on the host machine’s network so GitLab server can communicate with it through localhost instead of using its container name (container ID can change everytime we recreate containers).
Atlas C
atlassc.net › 2024 › 03 › 21 › docker-inside-gitlab-runner-s-docker-executor-a-docker-in-docker-practice
Docker Inside GitLab Runner's Docker Executor: A Docker-in-Docker Practice
March 21, 2024 - [[runners]] name = "my-runner" ... container running as a GitLab Runner executor, you need to mount the following resources from the host machine into the container:...
Medium
medium.com › @sky.tienyu › install-gitlab-runner-on-docker-777324d62343
Install GitLab Runner on Docker. Install docker before starting | by Tien | Medium
October 16, 2022 - # docker run --rm -it -v gitlab-runner-config:/etc/gitlab-runner gitlab/gitlab-runner:latest register