74 lines
2.5 KiB
Go
74 lines
2.5 KiB
Go
/*
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Copyright 2021 The Karmada Authors.
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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*/
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package apienablement
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import (
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"context"
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"k8s.io/apimachinery/pkg/api/meta"
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"k8s.io/klog/v2"
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clusterv1alpha1 "github.com/karmada-io/karmada/pkg/apis/cluster/v1alpha1"
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workv1alpha2 "github.com/karmada-io/karmada/pkg/apis/work/v1alpha2"
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"github.com/karmada-io/karmada/pkg/scheduler/framework"
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"github.com/karmada-io/karmada/pkg/util/helper"
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)
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const (
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// Name is the name of the plugin used in the plugin registry and configurations.
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Name = "APIEnablement"
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)
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// APIEnablement is a plugin that checks if the API(CRD) of the resource is installed in the target cluster.
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type APIEnablement struct{}
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var _ framework.FilterPlugin = &APIEnablement{}
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// New instantiates the APIEnablement plugin.
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func New() (framework.Plugin, error) {
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return &APIEnablement{}, nil
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}
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// Name returns the plugin name.
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func (p *APIEnablement) Name() string {
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return Name
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}
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// Filter checks if the API(CRD) of the resource is enabled or installed in the target cluster.
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func (p *APIEnablement) Filter(
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_ context.Context,
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bindingSpec *workv1alpha2.ResourceBindingSpec,
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_ *workv1alpha2.ResourceBindingStatus,
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cluster *clusterv1alpha1.Cluster,
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) *framework.Result {
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if helper.IsAPIEnabled(cluster.Status.APIEnablements, bindingSpec.Resource.APIVersion, bindingSpec.Resource.Kind) {
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return framework.NewResult(framework.Success)
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}
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// Let the cluster pass if it is already on the list of schedule result and the cluster's
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// API enablements is incomplete, to avoid the issue that cluster be accidentally removed
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// due to untrusted API enablements.
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if bindingSpec.TargetContains(cluster.Name) &&
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!meta.IsStatusConditionTrue(cluster.Status.Conditions, clusterv1alpha1.ClusterConditionCompleteAPIEnablements) {
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return framework.NewResult(framework.Success)
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}
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klog.V(2).Infof("Cluster(%s) not fit as missing API(%s, kind=%s)", cluster.Name, bindingSpec.Resource.APIVersion, bindingSpec.Resource.Kind)
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return framework.NewResult(framework.Unschedulable, "cluster(s) did not have the API resource")
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}
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