mirror of https://github.com/kubernetes/kops.git
136 lines
3.6 KiB
Go
136 lines
3.6 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 cloudinstances
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import (
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"fmt"
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"strings"
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v1 "k8s.io/api/core/v1"
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"k8s.io/klog/v2"
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kopsapi "k8s.io/kops/pkg/apis/kops"
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)
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// CloudInstanceGroup is the cloud backing of InstanceGroup.
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type CloudInstanceGroup struct {
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// HumanName is a user-friendly name for the group
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HumanName string
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InstanceGroup *kopsapi.InstanceGroup
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Ready []*CloudInstance
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NeedUpdate []*CloudInstance
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MinSize int
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TargetSize int
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MaxSize int
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// Raw allows for the implementer to attach an object, for tracking additional state
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Raw interface{}
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}
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// NewCloudInstance creates a new CloudInstance
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func (c *CloudInstanceGroup) NewCloudInstance(instanceId string, status string, node *v1.Node) (*CloudInstance, error) {
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if instanceId == "" {
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return nil, fmt.Errorf("instance id for cloud instance member cannot be empty")
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}
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cm := &CloudInstance{
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ID: instanceId,
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CloudInstanceGroup: c,
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}
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if status == CloudInstanceStatusUpToDate {
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c.Ready = append(c.Ready, cm)
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} else {
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c.NeedUpdate = append(c.NeedUpdate, cm)
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}
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cm.Status = status
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if node != nil {
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cm.Node = node
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} else {
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klog.V(8).Infof("unable to find node for instance: %s", instanceId)
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}
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return cm, nil
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}
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// Status returns a human-readable Status indicating whether an update is needed
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func (c *CloudInstanceGroup) Status() string {
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if len(c.NeedUpdate) == 0 {
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return "Ready"
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}
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return "NeedsUpdate"
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}
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func (group *CloudInstanceGroup) AdjustNeedUpdate() {
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if group.Ready != nil {
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var newReady []*CloudInstance
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for _, member := range group.Ready {
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makeNotReady := false
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if member.Node != nil && member.Node.Annotations != nil {
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if _, ok := member.Node.Annotations["kops.k8s.io/needs-update"]; ok {
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makeNotReady = true
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}
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}
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if makeNotReady {
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group.NeedUpdate = append(group.NeedUpdate, member)
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member.Status = CloudInstanceStatusNeedsUpdate
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} else {
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newReady = append(newReady, member)
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}
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}
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group.Ready = newReady
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}
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}
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// GetNodeMap returns a list of nodes keyed by their external id
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func GetNodeMap(nodes []v1.Node, cluster *kopsapi.Cluster) map[string]*v1.Node {
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nodeMap := make(map[string]*v1.Node)
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if cluster.Spec.GetCloudProvider() == kopsapi.CloudProviderAzure {
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for i := range nodes {
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node := &nodes[i]
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vmName, err := toAzureVMName(node.Spec.ProviderID)
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if err != nil {
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klog.Errorf("ignoring node %q with malformed provider ID: %s", node.Name, err)
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continue
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}
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nodeMap[vmName] = node
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}
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return nodeMap
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}
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for i := range nodes {
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node := &nodes[i]
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providerIDs := strings.Split(node.Spec.ProviderID, "/")
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instanceID := providerIDs[len(providerIDs)-1]
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nodeMap[instanceID] = node
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}
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return nodeMap
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}
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// toAzureVMName returns a VM name from the resource path stored in the provider ID.
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func toAzureVMName(providerID string) (string, error) {
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l := strings.Split(providerID, "/")
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if len(l) != 13 {
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return "", fmt.Errorf("unexpected form of resource path: %q", providerID)
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}
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vmssName := l[10]
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idx := l[12]
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return fmt.Sprintf("%s_%s", vmssName, idx), nil
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}
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