homeserver/roles/riemers.gitlab-runner
2021-02-13 14:20:18 +01:00
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GitLab Runner Build Status Ansible Role

This role will install the official GitLab Runner (fork from haroldb) with updates. Needed something simple and working, this did the trick for me. Open for changes though.

Requirements

This role requires Ansible 2.7 or higher.

Role Variables

  • gitlab_runner_package_name - Since Gitlab 10.x The package name of gitlab-ci-multi-runner has been renamed to gitlab-runner. In order to install a version < 10.x you will need to define this variable gitlab_runner_package_name: gitlab-ci-multi-runner.
  • gitlab_runner_wanted_version or gitlab_runner_package_version - To install a specific version of the gitlab runner (by default it installs the latest). On Mac OSX and Windows, use e.g. gitlab_runner_wanted_version: 12.4.1. On Linux, use gitlab_runner_package_version instead.
  • gitlab_runner_concurrent - The maximum number of global jobs to run concurrently. Defaults to the number of processor cores.
  • gitlab_runner_registration_token - The GitLab registration token. If this is specified, a runner will be registered to a GitLab server.
  • gitlab_runner_coordinator_url - The GitLab coordinator URL. Defaults to https://gitlab.com.
  • gitlab_runner_sentry_dsn - Enable tracking of all system level errors to Sentry
  • gitlab_runner_listen_address - Enable /metrics endpoint for Prometheus scraping.
  • gitlab_runner_runners - A list of gitlab runners to register & configure. Defaults to a single shell executor.
  • gitlab_runner_skip_package_repo_install- Skip the APT or YUM repository installation (by default, false). You should provide a repository containing the needed packages before running this role.

See the defaults/main.yml file listing all possible options which you can be passed to a runner registration command.

Gitlab Runners cache

For each gitlab runner in gitlab_runner_runners you can set cache options. At the moment role support s3 or gcs types. Example configurration for s3 can be:

gitlab_runner_runners:
  cache_type: "s3"
  cache_path: "cache"
  cache_shared: true
  cache_s3_server_address: "s3.amazonaws.com"
  cache_s3_access_key: "<access_key>"
  cache_s3_secret_key: "<secret_key>"
  cache_s3_bucket_name: "<bucket_name>
  cache_s3_bucket_location: "eu-west-1"
  cache_s3_insecure: false

Autoscale Runner Machine vars for AWS (optional)

  • gitlab_runner_machine_options: [] - Foremost you need to pass an array of dedicated vars in the machine_options to configure your scaling runner:

    • amazonec2-access-key and amazonec2-secret-key the keys of the dedicated IAM user with permission for EC2
    • amazonec2-zone
    • amazonec2-region
    • amazonec2-vpc-id
    • amazonec2-subnet-id
    • amazonec2-use-private-address=true
    • amazonec2-security-group
    • amazonec2-instance-type
    • you can also set amazonec2-tags to identify you instance more easily via aws-cli or the console.
  • MachineDriver - which should be set to amzonec2 when working on AWS

  • MachineName - Name of the machine. It must contain %s, which will be replaced with a unique machine identifier.

  • IdleCount - Number of machines, that need to be created and waiting in Idle state.

  • IdleTime - Time (in seconds) for machine to be in Idle state before it is removed.

In addition you could set off peak settings. This lets you select a regular time periods when no work is done. For example most of commercial companies are working from Monday to Friday in a fixed hours, eg. from 10am to 6pm. In the rest of the week - from Monday to Friday at 12am-9am and 6pm-11pm and whole Saturday and Sunday - no one is working. These time periods were naming here as Off Peak.

  • gitlab_runner_machine_off_peak_periods
  • gitlab_runner_machine_off_peak_idle_time
  • gitlab_runner_machine_off_peak_idle_count

Read Sources

For details follow these links:

See the config for more options

Example Playbook

- hosts: all
  become: true
  vars_files:
    - vars/main.yml
  roles:
    - { role: riemers.gitlab-runner }

Inside vars/main.yml

gitlab_runner_coordinator_url: https://gitlab.com
gitlab_runner_registration_token: '12341234'
gitlab_runner_runners:
  - name: 'Example Docker GitLab Runner'
    # token is an optional override to the global gitlab_runner_registration_token
    token: 'abcd'
    # url is an optional override to the global gitlab_runner_coordinator_url
    url: 'https://my-own-gitlab.mydomain.com'
    executor: docker
    docker_image: 'alpine'
    tags:
      - node
      - ruby
      - mysql
    docker_volumes:
      - "/var/run/docker.sock:/var/run/docker.sock"
      - "/cache"
    extra_configs:
      runners.docker:
        memory: 512m
        allowed_images: ["ruby:*", "python:*", "php:*"]
      runners.docker.sysctls:
        net.ipv4.ip_forward: "1"

autoscale setup on AWS

how vars/main.yml would look like, if you setup an autoscaling GitLab-Runner on AWS:

gitlab_runner_registration_token: 'HUzTMgnxk17YV8Rj8ucQ'
gitlab_runner_coordinator_url: 'https://gitlab.com'
gitlab_runner_runners:
  - name: 'Example autoscaling GitLab Runner'
    state: present
    # token is an optional override to the global gitlab_runner_registration_token
    token: 'HUzTMgnxk17YV8Rj8ucQ'
    executor: 'docker+machine'
    # Maximum number of jobs to run concurrently on this specific runner.
    # Defaults to 0, simply means don't limit.
    concurrent_specific: '0'
    docker_image: 'alpine'
    # Indicates whether this runner can pick jobs without tags.
    run_untagged: true
    extra_configs:
      runners.machine:
        IdleCount: 1
        IdleTime: 1800
        MaxBuilds: 10
        MachineDriver: 'amazonec2'
        MachineName: 'git-runner-%s'
        MachineOptions: ["amazonec2-access-key={{ lookup('env','AWS_IAM_ACCESS_KEY') }}", "amazonec2-secret-key={{ lookup('env','AWS_IAM_SECRET_KEY') }}", "amazonec2-zone={{ lookup('env','AWS_EC2_ZONE') }}", "amazonec2-region={{ lookup('env','AWS_EC2_REGION') }}", "amazonec2-vpc-id={{ lookup('env','AWS_VPC_ID') }}", "amazonec2-subnet-id={{ lookup('env','AWS_SUBNET_ID') }}", "amazonec2-use-private-address=true", "amazonec2-tags=gitlab-runner", "amazonec2-security-group={{ lookup('env','AWS_EC2_SECURITY_GROUP') }}", "amazonec2-instance-type={{ lookup('env','AWS_EC2_INSTANCE_TYPE') }}"]

NOTE

from https://docs.gitlab.com/runner/executors/docker_machine.html:

The first time youre using Docker Machine, its best to execute manually docker-machine create... with your chosen driver and all options from the MachineOptions section. This will set up the Docker Machine environment properly and will also be a good validation of the specified options. After this, you can destroy the machine with docker-machine rm [machine_name] and start the Runner.

Example:

`docker-machine create -d amazonec2 --amazonec2-zone=a --amazonec2-region=us-east-1 --amazonec2-vpc-id=vpc-11111111 --amazonec2-subnet-id=subnet-1111111 --amazonec2-use-private-address=true --amazonec2-tags=gitlab-runner --amazonec2-instance-type=t3.medium test

docker-machine rm test `

Contributors

Feel free to add your name to the readme if you make a PR. A full list of people from the PR's is here

  • Gastrofix for adding Mac Support
  • Matthias Schmieder for adding Windows Support
  • dniwdeus & rosenstrauch for adding AWS autoscale option