cdCon2021

The usage of immutable events notifying occurrences in CI/CD systems is increasing and we see standards like CloudEvents and event implementations in e.g. Tekton emerging. Events are useful for triggering and propagating information in these systems. To see the bigger picture, by aggregating data from several events, the receiver need to have some kind of context to see which events belong together. One way to create this context is by using event linking, where events reference other events. This will enable data aggregation, complex event triggering and traceability. Traceability is crucial when for example a bug or a security vulnerability is found in a deployment. When traced back to a bug in a library, we also need to trace forward to what deployments that library was part of. This is needed regardless of who developed the products and what tools where used.