Note: This repository is currently not under active development. While the code and documentation remain accessible for reference and educational purposes, there will be no regular updates, bug fixes, or feature additions in the foreseeable future.

If you encounter issues or have questions, you are welcome to open an issue or a pull request. However, please be aware that responses and reviews may be significantly delayed.

Thank you for your understanding and interest in this project.

Work with multiple Docker images easily.

Sonar is currently Work in Progress!

Sonar is a tool that allows you to easily produce, template, build and publish Dockerfiles and Docker images. It uses a declarative, multi-stage approach to build Docker images.

Sonar can be used as a Python module or as a standalone program. Sonar will look for an inventory.yaml file in your local directory that should contain a collection of images to build and stages for each one of those images. A different inventory file can be specified using --inventory <file-path>.

Sonar comes with an inventory file to be able to build itself, and to run its unit tests. This simple.yaml is:

vars:
  # start a local registry with:
  # docker run -d -p 5000:5000 --restart=always --name registry registry:2
  registry: localhost:5000

images:
- name: sonar-test-runner

  vars:
    context: .

  # First stage builds a Docker image. The resulting image will be
  # pushed to the registry in the `output` section.
  stages:
  - name: build-sonar-tester-image
    task_type: docker_build

    dockerfile: docker/Dockerfile

    output:
    - registry: $(inputs.params.registry)/sonar-tester-image
      tag: $(inputs.params.version_id)

  # Second stage pushes the previously built image into a new
  # registry.
  - name: tag-image
    task_type: tag_image

    source:
      registry: $(stages['build-sonar-tester-image'].output[0].registry)
      tag: $(stages['build-sonar-tester-image'].output[0].tag)

    destination:
    - registry: $(inputs.params.registry)/sonar-tester-image
      tag: latest

To execute this inventory file, you can do:

$ python sonar.py --image sonar-test-runner --inventory inventories/simple.yaml

[build-sonar-tester-image/docker_build] stage-started build-sonar-tester-image: 1/2
[build-sonar-tester-image/docker_build] docker-image-push: localhost:5000/sonar-tester-image:8945563b-248e-4c03-bb0a-6cc15cff1a6e
[tag-image/tag_image] stage-started tag-image: 2/2
[tag-image/tag_image] docker-image-push: localhost:5000/sonar-tester-image:latest

At the end of this phase, you'll have a Docker image tagged as localhost:5000/sonar-tester-image:latest that you will be able to run with:

$ docker run localhost:5000/sonar-tester-image:latest
============================= test session starts ==============================
platform linux -- Python 3.9.4, pytest-6.2.4, py-1.10.0, pluggy-0.13.1
rootdir: /src
collected 38 items

test/test_build.py ...                                                   [  7%]
test/test_context.py ......x.....                                        [ 39%]
test/test_sign_image.py ..                                               [ 44%]
test/test_sonar.py ........                                              [ 65%]
test/test_tag_image.py .                                                 [ 68%]
test/test_tags.py ...........                                            [ 97%]
test/test_template.py .                                                  [100%]

======================== 37 passed, 1 xfailed in 0.52s =========================

Sonar is released under the terms of the Apache2 license.