Skip to main content

Envoy Proxy control-plane written in Python

Project description

sovereign

Mission statement

This project implements a JSON control-plane based on the envoy data-plane-api

The purpose of sovereign is to supply downstream envoy proxies with configuration in near-realtime by responding to discovery requests.

Mechanism of Operation

tl;dr version:

* Polls HTTP/File/Other for data
* (optional) Applies transforms to the data
* Uses the data to generate Envoy configuration from templates

In a nutshell, Sovereign gathers contextual data ("sources" and "template context"), optionally applies transforms to that data (using "modifiers") and finally uses the data to generate envoy configuration from either python code, or jinja2 templates.

This is performed in a semi-stateless way, where the only state is data cached in memory.

Template context is intended to be statically configured, whereas Sources are meant to be dynamic - for example, fetching from an API, an S3 bucket, or a file that receives updates.

Modifiers can mutate the data retrieved from sources, just in case the data is in a less than favorable structure.

Both modifiers and sources are pluggable, i.e. it's easy to write your own and plug them into Sovereign for your use-case.

Currently, Sovereign supports only providing configuration to Envoy as JSON. That is to say, gRPC is not supported yet. Contributions in this area are highly appreciated!

The JSON configuration can be viewed in real-time with Sovereign's read-only web interface.

Requirements

  • Python 3.8+

Installation

pip install sovereign

Documentation

Read the docs here!

:new: Read-only user interface

Added in v0.5.3!

This interface allows you to browse the resources currently returned by Sovereign.

Sovereign User Interface Screenshot

Local development

Requirements

  • Docker
  • Docker-compose

Installing dependencies for dev

I recommend creating a virtualenv before doing any dev work

python3 -m venv venv
source venv/bin/activate
pip install -r requirements-dev.txt

Running locally

Running the test env

make run

Running the test env daemonized

make run-daemon

Pylint

make lint

Unit tests

make unit

Acceptance tests

make run-daemon acceptance

Contributors

Pull requests, issues and comments welcome. For pull requests:

  • Add tests for new features and bug fixes
  • Follow the existing style
  • Separate unrelated changes into multiple pull requests

See the existing issues for things to start contributing.

For bigger changes, make sure you start a discussion first by creating an issue and explaining the intended change.

Atlassian requires contributors to sign a Contributor License Agreement, known as a CLA. This serves as a record stating that the contributor is entitled to contribute the code/documentation/translation to the project and is willing to have it used in distributions and derivative works (or is willing to transfer ownership).

Prior to accepting your contributions we ask that you please follow the appropriate link below to digitally sign the CLA. The Corporate CLA is for those who are contributing as a member of an organization and the individual CLA is for those contributing as an individual.

License

Copyright (c) 2018 Atlassian and others. Apache 2.0 licensed, see LICENSE.txt file.

Project details


Release history Release notifications | RSS feed

This version

0.9.5

Download files

Download the file for your platform. If you're not sure which to choose, learn more about installing packages.

Source Distribution

sovereign-0.9.5.tar.gz (34.8 kB view details)

Uploaded Source

Built Distribution

sovereign-0.9.5-py3-none-any.whl (42.7 kB view details)

Uploaded Python 3

File details

Details for the file sovereign-0.9.5.tar.gz.

File metadata

  • Download URL: sovereign-0.9.5.tar.gz
  • Upload date:
  • Size: 34.8 kB
  • Tags: Source
  • Uploaded using Trusted Publishing? No
  • Uploaded via: poetry/1.0.5 CPython/3.8.7 Linux/5.6.0

File hashes

Hashes for sovereign-0.9.5.tar.gz
Algorithm Hash digest
SHA256 9c743520947265a45bcea136bf9441cd9888b4755f5d8ecf530159c448a15025
MD5 5b2158624da50a0c70790c8ac6e9ee5e
BLAKE2b-256 7e3cf4819fea432813e19cac80036da75a2a36f4faa6dd3fc761e2d1222d5258

See more details on using hashes here.

File details

Details for the file sovereign-0.9.5-py3-none-any.whl.

File metadata

  • Download URL: sovereign-0.9.5-py3-none-any.whl
  • Upload date:
  • Size: 42.7 kB
  • Tags: Python 3
  • Uploaded using Trusted Publishing? No
  • Uploaded via: poetry/1.0.5 CPython/3.8.7 Linux/5.6.0

File hashes

Hashes for sovereign-0.9.5-py3-none-any.whl
Algorithm Hash digest
SHA256 c009d8291ec8c54b4eaf78e95e9ec08e42f932db9b8f0667975a752ec6e53745
MD5 ae10d5b704d954671676f8cf25594fc3
BLAKE2b-256 539b31f865dca4d86ad9749e9beeabe86bef37704da0395ce8e225e10afc34b6

See more details on using hashes here.

Supported by

AWS Cloud computing and Security Sponsor Datadog Monitoring Fastly CDN Google Download Analytics Pingdom Monitoring Sentry Error logging StatusPage Status page