From 9cdf9ee36649dee8ae3f29c0ce411cdd3e034463 Mon Sep 17 00:00:00 2001
From: Brandon <wagnerbm@amazon.com>
Date: Fri, 28 Jan 2022 17:11:51 -0600
Subject: [PATCH] implement ignored labels for region

---
 pkg/apis/provisioning/v1alpha5/constraints.go  | 3 +++
 pkg/apis/provisioning/v1alpha5/requirements.go | 5 +++++
 2 files changed, 8 insertions(+)

diff --git a/pkg/apis/provisioning/v1alpha5/constraints.go b/pkg/apis/provisioning/v1alpha5/constraints.go
index aae139ad6fda..1427e02b9ca2 100644
--- a/pkg/apis/provisioning/v1alpha5/constraints.go
+++ b/pkg/apis/provisioning/v1alpha5/constraints.go
@@ -54,6 +54,9 @@ func (c *Constraints) ValidatePod(pod *v1.Pod) error {
 	// The constraints do not support this requirement
 	podRequirements := PodRequirements(pod)
 	for _, key := range podRequirements.Keys() {
+		if IgnoredLabels.Has(key) {
+			continue
+		}
 		if c.Requirements.Requirement(key).Len() == 0 {
 			return fmt.Errorf("invalid nodeSelector %q, %v not in %v", key, podRequirements.Requirement(key).UnsortedList(), c.Requirements.Requirement(key).UnsortedList())
 		}
diff --git a/pkg/apis/provisioning/v1alpha5/requirements.go b/pkg/apis/provisioning/v1alpha5/requirements.go
index e0c384c121e4..984331515ce4 100644
--- a/pkg/apis/provisioning/v1alpha5/requirements.go
+++ b/pkg/apis/provisioning/v1alpha5/requirements.go
@@ -68,6 +68,11 @@ var (
 		"beta.kubernetes.io/os":       v1.LabelOSStable,
 		v1.LabelInstanceType:          v1.LabelInstanceTypeStable,
 	}
+	// IgnoredLables are not considered in scheduling decisions
+	// and prevent validation errors when specified
+	IgnoredLabels = sets.NewString(
+		v1.LabelTopologyRegion,
+	)
 )
 
 // Requirements is a decorated alias type for []v1.NodeSelectorRequirements