[Multi_K8s-Plugin] Baseline Rollout#6606
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mohammedfirdouss wants to merge 6 commits intopipe-cd:masterfrom
Open
[Multi_K8s-Plugin] Baseline Rollout#6606mohammedfirdouss wants to merge 6 commits intopipe-cd:masterfrom
mohammedfirdouss wants to merge 6 commits intopipe-cd:masterfrom
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Signed-off-by: Mohammed Firdous <124298708+mohammedfirdouss@users.noreply.github.com>
…ration Signed-off-by: Mohammed Firdous <124298708+mohammedfirdouss@users.noreply.github.com>
…nding tests Signed-off-by: Mohammed Firdous <124298708+mohammedfirdouss@users.noreply.github.com>
…ation Signed-off-by: Mohammed Firdous <124298708+mohammedfirdouss@users.noreply.github.com>
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What this PR does:
Implements the K8S_BASELINE_ROLLOUT stage for the kubernetes_multicluster plugin. This stage deploys the currently running version of an application at a reduced replica count alongside a canary — enabling direct side-by-side comparison of the current version (baseline) vs the
new version (canary) under identical conditions.
Why we need it: In a canary analysis workflow, comparing canary metrics against the full primary deployment is noisy, they run at different scales under different load. A baseline gives a proper control group: the same version as primary, at the same scale as canary. This makes regressions in the canary unambiguous.
Which issue(s) this PR fixes: Fixes #6446
Does this PR introduce a user-facing change?:
How are users affected by this change: Users can now add a K8S_BASELINE_ROLLOUT stage to their pipeline configuration. It accepts replicas (absolute or percentage), suffix (default: "baseline"), and createService options — same shape as K8S_CANARY_ROLLOUT minus patches.
Is this breaking change: No
How to migrate (if breaking change): N/A
Baseline test