- add analysis field to Canary spec
- deprecate canaryAnalysis filed (to be removed in the next API version)
- maintain backwards compatibility with v1alpha3 by using spec.canaryAnalysis if spec.analysis is nil
- set analysis threshold default value to 1
- add CrossNamespaceObjectReference type
- add informers collection to controller
- use the informer cache to query for metric templates
- rename mock to fixture
- regenerate clientset
- add CanaryThresholdRange type to Canary API
- add optional thresholdRange field to the analysis metric object
- implement min/max metric result validation
- thresholdRange takes precedence over threshold when both are specified
Traffic mirroring is a pre-stage for canary deployments. When mirroring
is enabled, at the beginning of a canary deployment traffic is mirrored
to the canary instead of shifted for one canary period. The service
mesh should mirror by copying the request and sending one copy to the
primary and one copy to the canary; only the response from the primary
is sent to the user. The response from the canary is only used for
collecting metrics.
Once the mirror period is over, the canary proceeds as usual, shifting
traffic from primary to canary until complete.
Added TestScheduler_Mirroring unit test.
The confirm promotion hooks are executed right before the promotion step. The canary promotion is paused until the hooks return HTTP 200. While the promotion is paused, Flagger will continue to run the metrics checks and load tests.
The confirm-rollout hooks are executed before the pre-rollout hooks. Flagger will halt the canary rollout until the confirm webhook returns HTTP status 200.
Add Promoted status condition with the following reasons: Initialized, Progressing, Succeeded, Failed
Usage: `kubectl wait canary/app --for=condition=promoted`
Fix: #184
- pre-rollout execute webhook before routing traffic to canary
- rollout execute webhook during the canary analysis on each iteration
- post-rollout execute webhook after the canary has been promoted or rolled back
Add canary phase to webhook payload
mathetake
stefanprodan
Tanner Altares
Andrew Jenkins
Trond Nordheim