KubeCon + CloudNativeCon India 2024

Rolling out a new service, adding databases clusters, are always challenging. The recommended way is to start with diverting small % of traffic to the new service and increase rollout % if things look well. If things don’t go well, the rollout % should be reduced. This is generally done through feature flags and manually monitoring the service with an observability tool. Feature flags enable remote update of rollout % without doing new deployments. OpenFeature is a new CNCF project which is trying to standardise feature flagging. It also has built-in hooks for OpenTelemetry so that feature flag values are available by default in tracing & metrics data captured by OpenTelemetry. In this talk, I will share how you can leverage open standards like OpenFeature (for feature flagging) and OpenTelemetry ( for observability) to better manage rollouts. You can enable automatic increase or decrease of rollout % by tying observability with feature flagging.