# eirini

**Repository Path**: mirrors_cloudfoundry/eirini

## Basic Information

- **Project Name**: eirini
- **Description**: Pluggable container orchestration for Cloud Foundry, and a Kubernetes backend
- **Primary Language**: Unknown
- **License**: Apache-2.0
- **Default Branch**: master
- **Homepage**: None
- **GVP Project**: No

## Statistics

- **Stars**: 0
- **Forks**: 0
- **Created**: 2022-02-10
- **Last Updated**: 2026-03-21

## Categories & Tags

**Categories**: Uncategorized

**Tags**: None

## README

<h1 align="center">
  <img src="logo.jpg" alt="Eirini">
</h1>

<!-- A spacer -->
<div>&nbsp;</div>

[![Build Status](https://travis-ci.org/cloudfoundry-incubator/eirini.svg?branch=master)](https://travis-ci.org/cloudfoundry-incubator/eirini)
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## What is Eirini?

_Eirini_ is a thin layer of abstraction on top of Kubernetes that allows Cloud
Foundry to deploy applications as Pods on a Kubernetes cluster. Eirini uses the
Diego abstractions of _Long Running Processes (LRPs)_ and _Tasks_ to capture Cloud
Foundry's notion of long running processes and one-off tasks.

Deployment instructions are available at:
[cloudfoundry-incubator/eirini-release](https://github.com/cloudfoundry-incubator/eirini-release).

## Components

![Eirini Overview Diagram](docs/architecture/EiriniOverview.png)

---

Eirini is composed of:

- `api`: The main component, provides the REST API used by
  the [Cloud Controller](https://github.com/cloudfoundry/cloud_controller_ng/).
  It's responsible for starting LRPs and tasks.

- `event-reporter`: A Kubernetes reconciler that watches for LRP instance
  crashes and reports them to the [Cloud
  Controller](https://github.com/cloudfoundry/cloud_controller_ng/).

- `instance-index-env-injector`: A Kubernetes webhook that inserts the
  [`CF_INSTANCE_INDEX`](https://docs.cloudfoundry.org/devguide/deploy-apps/environment-variable.html#CF-INSTANCE-INDEX)
  environment variable into every LRP instance (pod).

- `task-reporter`: A Kubernetes reconciler that reports the outcome of tasks to
  the [Cloud Controller](https://github.com/cloudfoundry/cloud_controller_ng/)
  and deletes the underlying Kubernetes Jobs after a configurable TTL has
  elapsed.

- `eirini-controller`: A Kubernetes reconciler that acts on
  create/delete/update operations on Eirini's own Custom Resouce Definitions
  (CRDs). This is still experimental.

## CI Pipelines

We use Concourse. Our pipelines can be found
[here](https://jetson.eirini.cf-app.com/).

## Contributing

Please read [CONTRIBUTING.md](.github/contributing.md) for details.

## Have a question or feedback? Reach out to us!

We can be found in our Slack channel
[#eirini-dev](https://cloudfoundry.slack.com/archives/C8RU3BZ26) in the Cloud
Foundry workspace. Please hit us up with any questions you may have or to share
your experience with Eirini!