vshn/docker-concierge

Repository configuration management powered by ModuleSync.

Concierge

Config Management + CI

Concierge is configuration management for your Git repositories driven by the CI service of your choice (GitLab CI, Bitbucket Pipelines, Travis CI, Circle CI -- you name it).

Concierge builds on ModuleSync and loops over a number of ModuleSync configurations from a configs/ directory. This allows you to bulk-manage a vast number of Git repositories from a single configuration repository. The companion CLI concierge-cli further extends the automation possibilities.

This Docker image is ready for use with OpenShift and Kubernetes.

Supported Tags

• 

Getting Started

1. Create a CI configuration file (see below for examples).
2. Create a configs/ folder.
3. Add a <repository-config>/ folder inside of it, and populate it with a ModuleSync configuration.
4. Add more ModuleSync config folders inside configs/ for different repository setups.
5. Put everything under version control, and push it to your CI service.

From now on, for every change you make to one of your configuration setups, ModuleSync will clone the repositories in question, apply your changes, and commit and push them. Just as you did before, manually cloning and applying changes. Now reliably, without forgetting any repo, and in a matter of seconds rather than hours.

GitLab CI

# FILE: .gitlab-ci.yml
---
concierge:
  image: vshn/concierge
  script: concierge
  variables:
    GIT_COMMITTER_NAME: Concierge by VSHN
    GIT_COMMITTER_EMAIL: concierge@vshn.ch
    MSYNC_ARGS: --pr --pr-labels=managed-update --force
  when: manual

Bitbucket Pipelines

# FILE: bitbucket-pipelines.yml
---
pipelines:
  default:
    - step:
        name: Concierge
        image: vshn/concierge
        script:
          - GIT_COMMITTER_NAME="Concierge by VSHN"
            GIT_COMMITTER_EMAIL="concierge@vshn.ch"
            MSYNC_ARGS="--pr --pr-labels=managed-update --force"
          - concierge

Manual Use

With Docker on the command line:

$ docker run --rm -v "$PWD":/app vshn/concierge

In a Docker Compose file as a pseudo-service:

  concierge:
    image: vshn/concierge
    volumes:
      - .:/app

Configuration

The Concierge image sports two main commands: concierge and msync

The ModuleSync msync command, which is called by the concierge script, uses Git and SSH. You can configure both of them via environment variables.

• SSH_PRIVATE_KEY (default: empty) ... the private key used to connect to your Git server and clone repositories
• SSH_KNOWN_HOSTS (default: empty) ... content for the ~/.ssh/known_hosts file to identify trusted hosts
• GIT_USER_NAME, GIT_USER_EMAIL ... override Git user (otherwise derived from last commit)
• GIT_COMMIT_MESSAGE ... override Git commit message (otherwise derived from last commit)
• MSYNC_ARGS define additional arguments to pass to msync (e.g. MSYNC_ARGS=--noop, MSYNC_ARGS=MSYNC_ARGS: --pr)
• GITLAB_TOKEN or GITHUB_TOKEN API access token must be set for automatic MR/PR generation to work (see ModuleSync docs)

Other environment values can be set as of the official Git documentation, but be warned that Git (or ModuleSync) can be very stubborn and may behave counterintuitively.

GitLab CI

1. Add SSH_PRIVATE_KEY and SSH_KNOWN_HOSTS to your repository project at Settings > CI/CD > Variables. See the GitLab CI docs on SSH keys for background information.
2. Add the corresponding SSH public key to Settings > Repository > Deploy Keys, enabling "Write access allowed", for all Git repositories you want to allow Concierge to manage.

Bitbucket Pipelines

Follow steps 1, 2, 3 from the Use SSH keys in Bitbucket Pipelines article in the Bitbucket documentation.

Security and Safety Considerations

Consider activating branch protection for your main branch, required code reviews (merge requests) and manual triggers of merging into your target branch.

Ideally, you enforce this policy in a tool-driven fashion leveraging the API of your code repository. You should also perform code reviews and merging in bulk from the command line, with a tool like concierge-cli.

Development

Please, open an issue in our issue tracker on GitHub for bugs or feature requests. Pull requests are always welcome!