A specification that defines a vendor-neutral
and declarative workflow language
targeting the serverless computing domain
1. Releases
| Component | Latest Release | Release date |
|---|---|---|
| Workflow Specification | v0.6 | 3/22/2021 |
| Synapse | 0.1.0-alpha1 | 3/22/2021 |
| Java SDK | 2.0.0.Final | 3/22/2021 |
| .NET SDK | v0.6.1 | 4/18/2021 |
| TypeScript SDK | v1.0.0 | 7/13/2021 |
| Go SDK | v1.0.0 | 11/12/2020 |
| VSCode Extension | 1.6.0 | 3/22/2021 |
2. Background
Workflows have become key components of Serverless applications, yet implementations tend to describe workflows differently.
The lack of a common way of describing serverless workflows means developers do not have a consistent way of modelling their serverless orchestrations.
The portability and productivity we can achieve from modeling serverless workflows is hindered overall.
No common workflow format means no common libraries, tooling, and infrastructure for modeling serverless workflows across different cloud platforms and/or containers.
Serverless Workflow addresses the need for a community-driven,
vendor-neutral and a
platform-independent workflow language specification that targets the serverless computing technology domain.
Having and using a specification-based workflow language allows us to model our workflows once and deploy them onto many different container/cloud platforms, expecting the same execution results.
3. About
Serverless Workflow is based on well-established and known standards such as CloudEvents, OpenApi, and gRPC.
The specification includes multiple components:
- Workflow DSL described by JSON Schemas
- Software Development Kits (SDKs) for both Go and Java (more to be added in future)
- Set of Workflow Extensions allowing you to enhancing your workflows to include things like Tracing, Observability, KPIs, etc.
- VSCode Extension enhancing development experience
- SVG Workflow diagram generation
4. Meetings
The Serverless Workflow Team meets weekly, every Monday at 10AM PT (USA Pacific)
via
Zoom.
Anyone is encouraged to join and collaborate. Please read our
our Code
of Conduct
before joining the first time.
Below is the CNCF Public Events Calendar which includes all of the Serverless
Workflow
team meetings:
5. Contribute
Serverless Workflow is organized via the CNCF's Serverless Working
Group.
It is hosted by the Cloud Native Computing Foundation
(CNCF) and was approved as a
Cloud Native Sandbox level project on July 14, 2020
Everyone is encouraged to join us! If you're interested in contributing, please
collaborate with us via:
- Serverless Workflow Github Org
- Weekly call on Mondays. See the "Meetings" tab for more infomation.
- Community Slack Channel: https://slack.cncf.io/ #serverless-workflow
- Email: cncf-wg-serverless
- Subscribe to: https://lists.cncf.io/g/cncf-wg-serverless
As contributors and maintainers of this project, and in the interest of fostering an open and welcoming community, we pledge to respect all people who contribute through reporting issues, posting feature requests, updating documentation, submitting pull requests or patches, and other activities.
We are committed to making participation in this project a harassment-free experience for everyone, regardless of level of experience, gender, gender identity and expression, sexual orientation, disability, personal appearance, body size, race, ethnicity, age, religion, or nationality.
See our full project Code of Conduct information here.
6. Resources
If you would like to add your articles, videos or presentations about Serverless Workflow, please open an issue here.
Articles
Videos
| Title | Platform |
|---|---|
| Intro to Serverless Workflow | YouTube |
| Serverless Workflow - VSCode Extension | YouTube |
| Serverless Workflow - JAVA SDK | YouTube |
| Hands-on demo - REST service invocation | YouTube |
| Hands-on demo - Error Handling and Retries | YouTube |
| Hands-on demo - Compensation | YouTube |
Conference talks
| Title | Event |
|---|---|
| CNCF Serverless WG - Serverless Workflow Project Deep Dive | KubeCon EU 2021 |
| Serverless Workflow and Kubernetes | KubeCon North America 2020 |
| Serverless WG Updates - CloudEvents and Serverless Workflow | KubeCon North America 2020 |
| Serverless Workflow: New approach to Kubernetes service orchestration | DevNation Tech Talk - 2020 |
| Low-Latency and Session-Oriented Serverless Workflows | Serverless Practitioners Summit 2020 |
| CNCF Serverless WG: CloudEvents & Serverless Workflow Updates | KubeCon Europe 2020 |
| Introduction to Serverless Workflow Specification | CNCF TOC Sandbox Proposal |
| Serverless Workflow, a New Approach to Business Automation | YouTube Live Event |
| Event-driven Applications with Kogito Serverless Workflows and Knative | OpenShift Commons |