mirror of https://github.com/kubernetes/kops.git
69 lines
2.0 KiB
Go
69 lines
2.0 KiB
Go
/*
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Copyright 2019 The Kubernetes 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 validation
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import (
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v1 "k8s.io/api/core/v1"
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"k8s.io/klog"
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)
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func getNodeReadyStatus(node *v1.Node) v1.ConditionStatus {
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cond := findNodeCondition(node, v1.NodeReady)
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if cond != nil {
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return cond.Status
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}
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return v1.ConditionUnknown
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}
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func findNodeCondition(node *v1.Node, conditionType v1.NodeConditionType) *v1.NodeCondition {
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for i := range node.Status.Conditions {
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cond := &node.Status.Conditions[i]
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if cond.Type == conditionType {
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return cond
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}
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}
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return nil
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}
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// isNodeReady returns if a Node is considered ready.
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// It is considered ready if:
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// 1) its Ready condition is set to true
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// 2) doesn't have NetworkUnavailable condition set to true
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func isNodeReady(node *v1.Node) bool {
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nodeReadyCondition := findNodeCondition(node, v1.NodeReady)
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if nodeReadyCondition == nil {
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klog.Warningf("v1.NodeReady condition not set on node %s", node.Name)
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return false
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}
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if nodeReadyCondition.Status != v1.ConditionTrue {
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klog.V(4).Infof("node %q not ready: %v", node.Name, nodeReadyCondition)
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return false
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}
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networkUnavailableCondition := findNodeCondition(node, v1.NodeNetworkUnavailable)
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if networkUnavailableCondition != nil {
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if networkUnavailableCondition.Status != v1.ConditionFalse && networkUnavailableCondition.Status != v1.ConditionUnknown {
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klog.V(4).Infof("node %q not ready: %v", node.Name, networkUnavailableCondition)
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return false
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}
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} else {
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klog.V(4).Infof("v1.NodeNetworkUnavailable condition not set on node %s", node.Name)
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}
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return true
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}
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