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Docker stop all Containers

Last brain dump of today. Here’s some quick commands to stop running docker containers and also clean up afterwards (remove container files, and images).

Stop all containers:

docker stop $(docker ps -aq)

Remove all containers:

docker rm $(docker ps -aq)

Remove all images:

docker rmi $(docker images -q)

GitLab : Build Docker Image within CI/CD Pipeline

Another brain dump for future reference. This is when setting up gitlab to build and run docker images when the CI/CD pipeline runs.

Install gitlab-runner

On a linux x86-64 download the gitlab-runner package:

sudo wget -O /usr/local/bin/gitlab-runner

Give it permissions:

sudo chmod +x /usr/local/bin/gitlab-runner

Install docker:

curl -sSL | sh

Create the gitlab-runner user:

sudo useradd --comment 'GitLab Runner' --create-home gitlab-runner --shell /bin/bash

Install gitlab-runner:

sudo gitlab-runner install --user=gitlab-runner --working-directory=/home/gitlab-runner

Start the gitlab-runner:

sudo gitlab-runner start

Register the gitlab-runner

Register the gitlab-runner:

sudo gitlab-runner register -n \
  --url \
  --registration-token REGISTRATION_TOKEN \
  --executor shell \
  --description "My Runner"

Add the gitlab-runner user to the docker group:

sudo usermod -aG docker gitlab-runner

Verify the gitlab-runner has docker access:

sudo -u gitlab-runner -H docker info

Creating your .gitlab-ci-yml

You can now test the runner by committing the .gitlab-ci.yml and testing:

  - docker info

    - docker build -t my-docker-image .
    - docker run my-docker-image /script/to/run/tests