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scheduler: add node affinity for pod when MultiQuotaTree on
Signed-off-by: chuanyun.lcy <chuanyun.lcy@alibaba-inc.com>
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chuanyun.lcy
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Jan 23, 2024
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Original file line number | Diff line number | Diff line change |
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@@ -0,0 +1,133 @@ | ||
package mutating | ||
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import ( | ||
"context" | ||
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admissionv1 "k8s.io/api/admission/v1" | ||
corev1 "k8s.io/api/core/v1" | ||
"k8s.io/apimachinery/pkg/api/errors" | ||
metav1 "k8s.io/apimachinery/pkg/apis/meta/v1" | ||
"k8s.io/apimachinery/pkg/fields" | ||
"k8s.io/apimachinery/pkg/labels" | ||
"k8s.io/apimachinery/pkg/types" | ||
"sigs.k8s.io/controller-runtime/pkg/client" | ||
"sigs.k8s.io/controller-runtime/pkg/webhook/admission" | ||
schedulingv1alpha1 "sigs.k8s.io/scheduler-plugins/pkg/apis/scheduling/v1alpha1" | ||
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"github.com/koordinator-sh/koordinator/apis/extension" | ||
quotav1alpha1 "github.com/koordinator-sh/koordinator/apis/quota/v1alpha1" | ||
"github.com/koordinator-sh/koordinator/pkg/features" | ||
utilclient "github.com/koordinator-sh/koordinator/pkg/util/client" | ||
utilfeature "github.com/koordinator-sh/koordinator/pkg/util/feature" | ||
) | ||
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func (h *PodMutatingHandler) addNodeAffinityForMultiQuotaTree(ctx context.Context, req admission.Request, pod *corev1.Pod) error { | ||
if req.Operation != admissionv1.Create { | ||
return nil | ||
} | ||
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if !utilfeature.DefaultFeatureGate.Enabled(features.MultiQuotaTree) { | ||
return nil | ||
} | ||
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quotaName := extension.GetQuotaName(pod) | ||
quota := &schedulingv1alpha1.ElasticQuota{} | ||
if quotaName == "" { | ||
err := h.Client.Get(ctx, types.NamespacedName{Namespace: pod.Namespace, Name: pod.Namespace}, quota) | ||
if err != nil { | ||
if errors.IsNotFound(err) { | ||
return nil | ||
} | ||
return err | ||
} | ||
} else { | ||
quotaList := &schedulingv1alpha1.ElasticQuotaList{} | ||
err := h.Client.List(ctx, quotaList, &client.ListOptions{ | ||
FieldSelector: fields.OneTermEqualSelector("metadata.name", quotaName), | ||
}, utilclient.DisableDeepCopy) | ||
if err != nil { | ||
return err | ||
} | ||
if len(quotaList.Items) == 0 { | ||
return nil | ||
} | ||
quota = "aList.Items[0] | ||
} | ||
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treeID := extension.GetQuotaTreeID(quota) | ||
if treeID == "" { | ||
return nil | ||
} | ||
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profileList := "av1alpha1.ElasticQuotaProfileList{} | ||
err := h.Client.List(ctx, profileList, &client.ListOptions{ | ||
LabelSelector: labels.SelectorFromSet(map[string]string{extension.LabelQuotaTreeID: treeID}), | ||
}, utilclient.DisableDeepCopy) | ||
if err != nil { | ||
return err | ||
} | ||
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if len(profileList.Items) == 0 { | ||
return nil | ||
} | ||
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nodeSelector := profileList.Items[0].Spec.NodeSelector | ||
if nodeSelector == nil { | ||
return nil | ||
} | ||
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requirements := convertNodeSelectorToNodeSelectorRequirements(nodeSelector) | ||
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affinity := pod.Spec.Affinity | ||
if affinity == nil { | ||
affinity = &corev1.Affinity{} | ||
pod.Spec.Affinity = affinity | ||
} | ||
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nodeAffinity := affinity.NodeAffinity | ||
if nodeAffinity == nil { | ||
nodeAffinity = &corev1.NodeAffinity{} | ||
affinity.NodeAffinity = nodeAffinity | ||
} | ||
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required := nodeAffinity.RequiredDuringSchedulingIgnoredDuringExecution | ||
if required == nil { | ||
required = &corev1.NodeSelector{} | ||
nodeAffinity.RequiredDuringSchedulingIgnoredDuringExecution = required | ||
} | ||
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for i, term := range required.NodeSelectorTerms { | ||
term.MatchExpressions = append(term.MatchExpressions, requirements...) | ||
required.NodeSelectorTerms[i] = term | ||
} | ||
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if len(required.NodeSelectorTerms) == 0 { | ||
required.NodeSelectorTerms = []corev1.NodeSelectorTerm{ | ||
corev1.NodeSelectorTerm{ | ||
MatchExpressions: requirements, | ||
}, | ||
} | ||
} | ||
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return nil | ||
} | ||
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func convertNodeSelectorToNodeSelectorRequirements(nodeSelector *metav1.LabelSelector) []corev1.NodeSelectorRequirement { | ||
requirements := make([]corev1.NodeSelectorRequirement, 0, len(nodeSelector.MatchLabels)+len(nodeSelector.MatchExpressions)) | ||
for k, v := range nodeSelector.MatchLabels { | ||
requirements = append(requirements, corev1.NodeSelectorRequirement{ | ||
Key: k, | ||
Operator: corev1.NodeSelectorOpIn, | ||
Values: []string{v}, | ||
}) | ||
} | ||
for _, expression := range nodeSelector.MatchExpressions { | ||
requirements = append(requirements, corev1.NodeSelectorRequirement{ | ||
Key: expression.Key, | ||
Operator: corev1.NodeSelectorOperator(string(expression.Operator)), | ||
Values: expression.Values, | ||
}) | ||
} | ||
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return requirements | ||
} |
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