Implement flagger_canary_successes_total and flagger_canary_failures_total
counter metrics with deployment strategy detection and analysis status
tracking for better observability of canary deployment outcomes.
Signed-off-by: cappyzawa <cappyzawa@gmail.com>
Enhance existing scheduler tests for deployments, daemonsets, and
services by adding prometheus metrics verification using testutil.
This ensures that status metrics are correctly recorded during
canary promotion workflows and provides better test coverage for
the metrics recording functionality.
Signed-off-by: cappyzawa <cappyzawa@gmail.com>
Add Promoted status condition with the following reasons: Initialized, Progressing, Succeeded, Failed
Usage: `kubectl wait canary/app --for=condition=promoted`
Fix: #184