rjalander / sig-events

CDF Events Special Interest Group

CDF Events Special Interest Group

Quick links

• Meeting Information
• Members
• New Members
• Governance
• Communication
• Meetings
• Specification
• Proof of Concept
• SDK

Group Charter

Introduction

Today’s CI/CD systems do not talk to each other in a standardized way. This leads to problems related to interoperability, notification of failure issues, and poor automation.

This group is looking at how events can help to create CI/CD systems with a decoupled architecture that is easy to scale and makes it resilient to failures. Using events could also increase automation when connecting workflows from different systems to each other, and as a result empowering tracing/visualizing/auditing of the connected workflows through these events.

Purpose

The group will focus on the use of events to provide interoperability through topics like:

• When are events suited? For triggers, audits, monitoring, management
  • Common guidelines for at-least-once, at-most-once, exactly once, ordering… When to apply what strategy?
• Best practices for event-driven CI/CD systems
• Events to be used by tools for orchestration/workflows
• Pipeline to pipeline communication via events
• Tracing/auditing/graphing/visualizing of the entire process, e.g., through events. What truly occurs?
• Metrics, e.g., how many versions have been deployed, how many PRs (Pull Requests) have been raised, how many events have been issued?
• How are events related and how are they ordered (links vs trace context)?

Outcome

The group is working on a standardized event protocol that caters for technology agnostic machine-to-machine communication in CI/CD systems. This specification will be published, reviewed and agreed upon between relevant Linux Foundation projects/members. This work can be followed through the CDEvents website.

The group aims to provide reference implementations such as event listeners and event senders on top of CloudEvents. These implementations are / will be published under the CDEvents GitHub organization.

The group also produces blog posts, whitepapers and presentations published within the CD Foundation.

History

This is group started as a work-stream within the CDF SIG Interoperability. The forming of the workstream was suggested on a SIG Interoperability meeting and its first meeting was held on June 8th 2020. The SIG was formed in February 2021.

What is an event?

We currently stick with the definition used by CloudEvents: An event is a data record expressing an occurrence and its context, where occurrence is the capture of a statement of fact during the operation of a software system.

Members

Current members:

• Ravi Lachhman, @ravilach, Harness
• Andreas Grimmer, @agrimmer, Dynatrace
• Emil Bäckmark, @e-backmark-ericsson, Ericsson
• Ramin Akhbari, (@rakhbari), eBay
• Mattias Linnér, @m-linner-ericsson, Ericsson
• Andrea Frittoli, @afrittoli, IBM
• Mauricio Salatino @salaboy, VMware Knative Project
• Steve Taylor @sbtaylor15, DeployHub / Ortelius OS
• Tracy Ragan @tracyragan, DeployHub / Ortelius OS
• Brad McCoy @bradmccooydev, Ortelius OS
• Erik Sternerson @erkist, doWhile
• Cameron Motevasselani (@link108), Armory
• Alois Reitbauer (@aloisreitbauer), Dynatrace
• Fredrik Fristedt @fredjn, Axis Communications
• Oleg Nenashev @oleg-nenashev, Dynatrace/Jenkins/Keptn
• Kara de la Marck @MarckK, Continuous Delivery Foundation
• Kevin Chu @kbychu, GitLab
• Vibhav Bobade @waveywaves, Independent
• Matheus Paes @MatheusPaes, PicPay
• Ishan Khare @ishankhare07, Loft Labs
• Brett Smith (@xbcsmith), SAS Institute Inc.
• Moteesh Reddy @moteesh-in2tive, Ozone
• Marcus Philip @marcusphi, Avanza
• Adam Gardner @agardnerit, OpenFeature/Keptn

New Members

Membership to this SIG is open to public and self-declared.

New members are advised to:

• Join the SIG and CDF TOC mailing lists.
• Join the CDF Slack and jump into the #sig-events channel and introduce yourself.
• Go through the README.md document.
• Regularly join the SIG meetings.
• Submit a PR to add yourself to the members list.
• Here are various ways to get involved:
  • Share your thoughts by joining the meetings, posting to the mailing list, discussions forum or Slack channel.
  • Add a topic you would like to discuss to the agenda of upcoming meeting.
  • Create a new issue or start a discussion to start gathering feedback and collaborating.
  • Choose an issue where help is needed and comment on it expressing interest.

Communication

• Mailing list: lists.cd.foundation/g/sig-events.
• GitHub Discussions: cdfoundation/sig-events/discussions.
• Slack: #sig-events slack channel on the CDF slack.

Governance

SIG Events is a CDF Special Interest Group.

The process SIG Events follows can be seen from here.

Chairs and the TOC Sponsor of the SIG are

• Emil Bäckmark (@e-backmark-ericsson), Ericsson - Co-Chair
• Andrea Frittoli (@afrittoli), IBM - Co-chair
• Isaac Mosquera (@imosquera), Armory - TOC Sponsor

Meetings

SIG Events meets bi-weekly on Mondays at 3pm UTC in the summer time and at 4pm UTC in winter time. (See your timezone here).

• Meeting agenda and minutes.
• Zoom Bridge.
• Zoom International dial-in numbers.
• CDF Public Calendar (UTC).
• Recorded meetings on Youtube
• Archived meeting notes (2021).
• Archived meeting notes (2020).