metal3d/drone-plugin-s2i repository overview

⁠Drone.io plugin to build images with s2i

Source to image⁠, aka "s2i", is a Red Hat project originaly created to build images from sources without the need of a Dockerfile, made for Openshit/OKD (see https://www.openshift.com/⁠ and the community version https://www.okd.io/⁠)

Drone⁠ is a CI/CD solution that can run on Docker and Kubernetes.

To be able to have the same build solution, you need this plugin.

⁠Usage

In your .drone.yml file, you can use metal3d/drone-plugin-s2i - you can use that paramters:

• image (mandatory) is the "s2i" image that assemble the target image
• target (mandatory) is the target image built with s2i
• push (boolean, default to false) will push your image after the build
• context (string, default to "./") is the context directory inside you repository
• incremental (boolean, default to false) perform an incremental build if possible
• registry is the registry you want to login (login not yet supported)
• insecure (boolean, default to false) to use the registry as "insecure" (http instead of https)

Exemple, with docker-registry:5000 as a private registry:

kind: pipeline
name: default

steps:
  - name: s2i-build
    image: metal3d/drone-plugin-s2i
    pull: always
    settings:
      registry: docker-registry:5000
      insecure: true
      image: docker-registry:5000/metal3d/nginx:1.15-s2i 
      target: docker-registry:5000/metal3d/httptest

Note that in kubernetes, "docker-registry" can be the service name of your private registry. For example, if your service docker-registry resides in the "registry" namespace, you can use docker-registry.registry:5000.

⁠Privileged mode

As we need docker daemon to be launched, you'll need to use "privileged: true". That means that the repository should be trusted.

To avoid that, you can add the plugin to DRONE_RUNNER_PRIVILEGED_IMAGES:

DRONE_RUNNER_PRIVILEGED_IMAGES=plugins/docker,plugins/ecr,metal3d/drone-plugin-s2i

That way, you will not need to set privileged mode, and others users will be able to build images with s2i.