Commodore provides opinionated tenant-aware management of Kapitan inventories and templates. Commodore uses Kapitan for the heavy lifting of rendering templates and resolving a hierachical configuration structure.
Project description
Project Syn: Commodore
This repository is part of Project Syn. For documentation on Project Syn and this component, see https://syn.tools.
See GitHub Releases for changelogs of each release version of Commodore.
See DockerHub for pre-built Docker images of Commodore.
Commodore is published on PyPI
Overview
Commodore provides opinionated tenant-aware management of Kapitan inventories and templates. Commodore uses Kapitan for the heavy lifting of rendering templates and resolving a hierachical configuration structure.
Commodore introduces the concept of a component, which is a bundle of Kapitan templates and associated Kapitan classes which describe how to render the templates. Commodore fetches any components that are required for a given configuration before running Kapitan, and sets up symlinks so Kapitan can find the component classes.
Commodore also supports additional processing on the output of Kapitan, such as patching in the desired namespace for a Helm chart which has been rendered using helm template.
System Requirements
- Python 3.10 - 3.12 with
python3-devandpython3-venvupdated - jsonnet-bundler
- Our fork projectsyn/jsonnet-bundler is currently recommended. It parallelizes fetching of dependencies, which speeds up Commodore significantly, and has fixes to make the dependency fetching more deterministic.
libmagic(install withbrew install libmagicon macOS)
Getting started
-
Recommended: create a new virtual environment
python3 -m venv venv source venv/bin/activate
-
Install commodore from PyPI
pip install syn-commodore -
Download jsonnet-bundler from projectsyn/jsonnet-bundler/releases and put the binary in your
$PATHasjb. -
For Commodore to work, you need to run an instance of Lieutenant somewhere (locally is fine too).
-
Setup a
.envfile to configure Commodore (don't use quotes):# URL of Lieutenant API COMMODORE_API_URL=https://lieutenant-api.example.com/ # Lieutenant API token COMMODORE_API_TOKEN=<my-token> # Your local user ID to be used in the container (optional, defaults to root) USER_ID=<your-user-id> # Your username to be used in the commits (optional, defaults to your local git config) COMMODORE_USERNAME=<your name> # Your user email to be used in the commits (optional, defaults to your local git config) COMMODORE_USERMAIL=<your email>
-
Run commodore
commodore
Run Commodore with poetry
Additional System Requirements
- Poetry 1.3.0+
- Docker
-
Install requirements
Install poetry according to the upstream documentation.
Create the Commodore environment:
poetry installDownload jsonnet-bundler from projectsyn/jsonnet-bundler/releases and put the binary in your
$PATHasjb. -
Finish setup as described above
-
Run Commodore
poetry run commodore -
Start hacking on Commodore
poetry shell- Write a line of test code, make the test fail
- Write a line of application code, make the test pass
- Repeat
Note: Commodore uses the Black code formatter, and its formatting is encforced by CI.
-
Run linting and tests
Auto format with autopep8
poetry run autopepList all Tox targets
poetry run tox -lvRun all linting and tests
poetry run toxRun just a specific target
poetry run tox -e py38
Run Commodore in Docker
IMPORTANT: After checking out this project, run mkdir -p catalog inventory dependencies in it before running any Docker commands.
This will ensure the folders are writable by the current user in the context of the Docker container.
A docker-compose setup enables running Commodore in a container.
The environment variables are picked up from the local .env file.
By default your ~/.ssh/ directory is mounted into the container and an ssh-agent is started.
You can skip starting an agent by setting the SSH_AUTH_SOCK env variable and mounting the socket into the container.
- Build the Docker image inside of the cloned Commodore repository:
docker-compose build
- Run the built image:
docker-compose run commodore catalog compile $CLUSTER_ID
Documentation
Documentation for this component is written using Asciidoc and Antora. It is located in the docs/ folder. The Divio documentation structure is used to organize its content.
Run the make docs-serve command in the root of the project, and then browse to http://localhost:2020 to see a preview of the current state of the documentation.
After writing the documentation, please use the make docs-vale command and correct any warnings raised by the tool.
Contributing and license
This library is licensed under BSD-3-Clause. For information about how to contribute see CONTRIBUTING.
Release history Release notifications | RSS feed
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