Open Application Model (OAM) is a runtime-agnostic specification for defining cloud native applications and enable building application-centric platforms by natural.
Focused on application rather than container or orchestrator, Open Application Model brings modular, extensible, and portable design for building application centric platforms on any runtime systems like Kubernetes, cloud, or IoT devices.
Building platforms without application context is hard:
- Developers spend time on infrastructure details instead of applications - ingress, labels, iptables rules, DNS, etc, and learning how the platform is implemented.
- Restricted platform capabilities - in-house APIs with opinionated abstractions and implementations, lack of interoperability.
- Runtime lock-in - platform is tightly coupled with execution runtime, which heavily impact on how you configure, develop and operate your application.
In Open Application Model, we propose an app-centric approach instead:
- Application first - build the platform around a self-contained app model, where operational characteristics are also part of app definition, free of infrastructure here.
- Clarity and extensibility - an open standard to modularize your platform capabilities into reusable pieces, with freedom to bring your own abstractions and implementations.
- Runtime agnostic - a consistent experience to deploy and operate your apps across on-prem clusters, cloud providers or even edge devices.
NOTICE: The current working draft of OAM specification (0.2.x release) is under pre-beta release, which means the specification is still under development but will keep backward compatibility for any further change.
"Developers think in terms of application architecture, not of infrastructure."
Open Application Model defines a series of standard but extensible building blocks to model micro-service applications, with day 2 operations as part of the application definition. This enables platform builders to create platforms around a unified model, with app-centric mindset by default, and essentially changes building platforms into developing modularized components and traits for the application.
Open Application Model proposed a clear separation of concerns between the parts that developers are responsible for, and the parts that operators and platform engineers are responsible for. For more details, see introduction.md.
| Latest Release | Working Draft | |
|---|---|---|
| Core Specification: | ||
| OAM Specification | v0.2.1 | v0.2.2-WD |
- OAM Kubernetes Runtime is the officially maintained OAM plugin for Kubernetes which implemented OAM building block objects.
To get an overview of the milestones and their description please visit the Milestones page.
Triaging of items into milestones will occur during the bi-weekly community call. During this call, issues might be brought into milestones, removed from milestones or moved between milestones.
See the CONTRIBUTING guide for more information about submitting changes to the spec.
One of the easiest ways to contribute is to participate in discussions. There are several ways to get involved.
| Item | Value |
|---|---|
| Mailing List | https://groups.google.com/forum/#!forum/oam-dev |
| Community meeting info | Bi-weekly (Starting Oct 22, 2019), Tuesdays 10:30AM PST |
| Meeting link | https://zoom.us/j/271516061 |
| APAC Friendly Community meeting | Bi-weekly APAC (Starting May 19, 2020), Tuesdays 19:00PM GMT+8 |
| Meeting link APAC Friendly meeting | https://zoom.com.cn/j/2847572020 |
| Meeting notes | Notes and agenda |
| Meeting recordings | Recordings |
| IM Channel | https://gitter.im/oam-dev/ |
| @oam_dev |
Come find community blogs and conference talks about OAM in community talks and blogs.