[EPIC] Eventing Manager

[k15r]

Description

The eventing component of the kyma project needs to be transformed into a kyma module. The initial plan and details are outlined in https://github.tools.sap/skydivingtunas/proposals/tree/main/eventing-modularization. This epic will take the initial plan into reality by managing and tracking the actual action items.

The eventing module will implement ideas described in the backend switching epic: kyma-project/kyma#13800

Actions:

• Design proposal for Eventing CRD kyma#17111
• Implement initial Eventing-manager using Kubebuilder #1
• Implement the Status Handling for Eventing Manager #13
• Add Technical writers to CODEOWNERS #11
• Validation and defaulting rules for the CR #17
• Create/Delete Publisher Proxy k8s resources with Eventing CR #24
• move event type prefix from ConfigMap to Eventing-CR #25
• implement working eventing with the backend configured to JetStream #3
• Add Publisher Proxy Suffix and Fill Values from Eventing CR Directly #41
• Setup validation and conversion webhook for Subscription CR #51
• Change Eventing CRD to a single backend #27
• Enable EventMesh Backend #37
• Reconcile a single eventing CR. Multiple eventing CRs are not supported (would a cluster scope cr be an option?) #64
• Support switching between NATS and EventMesh #63
• React to NATS+EventMesh backend config modifications on Eventing CR #45
• React to changes on ClusterRole and ClusterRoleBindings #33
• Make eventing-publisher-proxy work when Application CRD is not installed #94
• Make eventing-controller work when Application CRD is not installed #124
• Fix webhooks when upgrading from Kyma to eventing-manager #101
• [TB: 3 days] How to upgrade EC to Eventing Manager in existing clusters? #71
• Deprovision of resources deployed by eventing-manager #34
• Upgrade controller-runtime #119
• Provide correct cluster domain value to eventing-manager #137
• Replace APIRule by native istio resources #140
• Create a PriorityClass for eventing-manager #99
• Block eventing-CR removal if resources owned by it exist in the cluster #79
• Watch NATS Resource for NATS Mode Only #38

Needed for Dev:

• Create Eventing UI #120
• Webhook do not work when re-enable eventing module #174
• Increase resource limits for eventing-manager pod #179

Needed for Stage:

• Check if APIRule CRD is installed, otherwise stop reconciliation for EventMesh #95
• Update Eventing CR Defaulting values #66
• create peerauthentications for epp and em #200
• Make sure that metrics are kept in eventing-manager. #82
• Improved migration script for Stage rollout #196
• Improve Metrics to reduce monitoring dependency on istio #18

Needed for Prod:

• Ensure zero downtime upgrade #105
• Delete EPP resources in eventing-manager if NATS module is not enabled #236
• Update documentation on how to switch backends #129
• Improve on-call documentation for eventing related incidents #195
• Update documentation on how to deploy using lifecycle manager in Readme. #128
• Official documentation approved by the TW #184