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https://github.com/openservicemesh/osm

Open Service Mesh (OSM) is a lightweight, extensible, cloud native service mesh that allows users to uniformly manage, secure, and get out-of-the-box observability features for highly dynamic microservice environments.
https://github.com/openservicemesh/osm

kubernetes service-mesh

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Open Service Mesh (OSM) is a lightweight, extensible, cloud native service mesh that allows users to uniformly manage, secure, and get out-of-the-box observability features for highly dynamic microservice environments.

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README 

        
> # ⚠️ [The OSM project has been officially archived by the CNCF](https://github.com/cncf/toc/pull/1044). There will be no more new development on any repo under the OpenServiceMesh organization.⚠️







# Open Service Mesh (OSM)



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Open Service Mesh (OSM) is a lightweight, extensible, cloud native [service mesh][1] that allows users to uniformly manage, secure, and get out-of-the-box observability features for highly dynamic microservice environments.



The OSM project builds on the ideas and implementations of many cloud native ecosystem projects including [Linkerd](https://github.com/linkerd/linkerd), [Istio](https://github.com/istio/istio), [Consul](https://github.com/hashicorp/consul), [Envoy](https://github.com/envoyproxy/envoy), [Kuma](https://github.com/kumahq/kuma), [Helm](https://github.com/helm/helm), and the [SMI](https://github.com/servicemeshinterface/smi-spec) specification.



## Table of Contents



- [Overview](#overview)

  - [Core Principles](#core-principles)

  - [Documentation](#documentation)

  - [Features](#features)

  - [Project Status](#project-status)

  - [Support](#support)

  - [SMI Specification Support](#smi-specification-support)

- [OSM Design](#osm-design)

- [Install](#install)

  - [Prerequisites](#prerequisites)

  - [Get the OSM CLI](#get-the-osm-cli)

  - [Install OSM](#install-osm)

- [Demonstration](#demonstration)

- [Using OSM](#using-osm)

  - [OSM Usage Patterns](#osm-usage-patterns)

- [Community](#community)

- [Development Guide](#development-guide)

- [Code of Conduct](#code-of-conduct)

- [License](#license)



## Overview



OSM runs an Envoy based control plane on Kubernetes, can be configured with SMI APIs, and works by injecting an Envoy proxy as a sidecar container next to each instance of your application. The proxy contains and executes rules around access control policies, implements routing configuration, and captures metrics. The control plane continually configures proxies to ensure policies and routing rules are up to date and ensures proxies are healthy.



### Core Principles



1. Simple to understand and contribute to

1. Effortless to install, maintain, and operate

1. Painless to troubleshoot

1. Easy to configure via [Service Mesh Interface (SMI)][2]



### Documentation



Documentation pertaining to the usage of Open Service Mesh is made available at [docs.openservicemesh.io](https://docs.openservicemesh.io/).



Documentation pertaining to development, release workflows, and other repository specific documentation, can be found in the [docs folder](/docs).



### Features



1. Easily and transparently configure [traffic shifting][3] for deployments

1. Secure service to service communication by [enabling mTLS](https://docs.openservicemesh.io/docs/guides/certificates/)

1. Define and execute fine grained [access control][4] policies for services

1. [Observability](https://docs.openservicemesh.io/docs/troubleshooting/observability/) and insights into application metrics for debugging and monitoring services

1. Integrate with [external certificate management](https://docs.openservicemesh.io/docs/guides/certificates/) services/solutions with a pluggable interface

1. Onboard applications onto the mesh by enabling [automatic sidecar injection](https://docs.openservicemesh.io/docs/guides/app_onboarding/sidecar_injection/) of Envoy proxy



### Project status



> **Attention:**

> ⚠️ The OSM project has been officially [archived](https://www.cncf.io/archived-projects/). Please reference PR [Proposal: OSM for Project Archive](https://github.com/cncf/toc/pull/1044) ⚠️



### Support



See [SUPPORT](SUPPORT)



### SMI Specification support



| Kind           | SMI Resource                      |                                                          Supported Version                                                           |       Comments        |

| :------------- | --------------------------------- | :----------------------------------------------------------------------------------------------------------------------------------: | :-------------------: |

| TrafficTarget  | traffictargets.access.smi-spec.io |       [v1alpha3](https://github.com/servicemeshinterface/smi-spec/blob/v0.6.0/apis/traffic-access/v1alpha3/traffic-access.md)        |                       |

| HTTPRouteGroup | httproutegroups.specs.smi-spec.io | [v1alpha4](https://github.com/servicemeshinterface/smi-spec/blob/v0.6.0/apis/traffic-specs/v1alpha4/traffic-specs.md#httproutegroup) |                       |

| TCPRoute       | tcproutes.specs.smi-spec.io       |    [v1alpha4](https://github.com/servicemeshinterface/smi-spec/blob/v0.6.0/apis/traffic-specs/v1alpha4/traffic-specs.md#tcproute)    |                       |

| UDPRoute       | udproutes.specs.smi-spec.io       |                                                           _not supported_                                                            |                       |

| TrafficSplit   | trafficsplits.split.smi-spec.io   |        [v1alpha2](https://github.com/servicemeshinterface/smi-spec/blob/v0.6.0/apis/traffic-split/v1alpha2/traffic-split.md)         |                       |

| TrafficMetrics | \*.metrics.smi-spec.io            |      [v1alpha1](https://github.com/servicemeshinterface/smi-spec/blob/v0.6.0/apis/traffic-metrics/v1alpha1/traffic-metrics.md)       | 🚧 **In Progress** 🚧 |



## OSM Design



Read more about [OSM's high level goals, design, and architecture](DESIGN.md).



## Install



### Prerequisites



- Kubernetes cluster running an [active Kubernetes releases](https://kubernetes.io/releases/). The range of supported Kubernetes versions is defined in the [OSM Helm chart](https://github.com/openservicemesh/osm/blob/main/charts/osm/Chart.yaml#L24).

- kubectl current context is configured for the target cluster install

  - `kubectl config current-context`



### Get the OSM CLI



The simplest way of installing Open Service Mesh on a Kubernetes cluster is by using the `osm` CLI.



Download the `osm` binary from the [Releases page](https://github.com/openservicemesh/osm/releases). Unpack the `osm` binary and add it to `$PATH` to get started.



```shell

sudo mv ./osm /usr/local/bin/osm

```



### Install OSM



```shell

$ osm install

```



![OSM Install Demo](img/osm-install-demo-v0.9.2.gif "OSM Install Demo")



See the [installation guide](https://docs.openservicemesh.io/docs/guides/install/) for more detailed options.



## Demonstration



The OSM [Bookstore demo](https://docs.openservicemesh.io/docs/getting_started/install_apps/#deploy-applications) is a step-by-step walkthrough of how to install a bookbuyer and bookstore apps, and configure connectivity between these using SMI.



## Using OSM



After installing OSM, [onboard a microservice application](https://docs.openservicemesh.io/docs/guides/app_onboarding/) to the service mesh.



### OSM Usage Patterns



1. [Traffic Management](https://docs.openservicemesh.io/docs/guides/traffic_management/)

1. [Observability](https://docs.openservicemesh.io/docs/troubleshooting/observability/)

1. [Certificates](https://docs.openservicemesh.io/docs/guides/certificates/)

1. [Sidecar Injection](https://docs.openservicemesh.io/docs/guides/app_onboarding/sidecar_injection/)



## Community



Connect with the Open Service Mesh community:



- GitHub [issues](https://github.com/openservicemesh/osm/issues) and [pull requests](https://github.com/openservicemesh/osm/pulls) in this repo

- OSM Slack: Join the CNCF Slack for related discussions in #openservicemesh

- OSM Community meetings - **There are no more community meetings for this project**

- [Mailing list](https://groups.google.com/g/openservicemesh)

- [OSM Twitter](https://twitter.com/openservicemesh)



## Development Guide



If you would like to contribute to OSM, check out the [development guide](docs/development_guide/README.md).



## Code of Conduct



This project has adopted the [CNCF Code of Conduct](https://github.com/cncf/foundation/blob/master/code-of-conduct.md). See [CODE_OF_CONDUCT.md](CODE_OF_CONDUCT.md) for further details.



## License



This software is covered under the Apache 2.0 license. You can read the license [here](LICENSE).



[1]: https://en.wikipedia.org/wiki/Service_mesh

[2]: https://github.com/servicemeshinterface/smi-spec/blob/master/SPEC_LATEST_STABLE.md

[3]: https://docs.openservicemesh.io/docs/guides/traffic_management/traffic_split

[4]: https://docs.openservicemesh.io/docs/getting_started/traffic_policies