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0167c6eb22
Adding an implementation of GetZoneByProviderID & GetZoneByNodeName for GCE. This is related to ticket 50926. This was tested as part of the ongoing separate GCE cloud provider work. Added unit test. Fix for wojtek-t (borrowed from FengyunPan)
86 lines
2.8 KiB
Go
86 lines
2.8 KiB
Go
/*
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Copyright 2017 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 gce
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import (
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"fmt"
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"strings"
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compute "google.golang.org/api/compute/v1"
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"k8s.io/apimachinery/pkg/types"
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"k8s.io/kubernetes/pkg/cloudprovider"
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)
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func newZonesMetricContext(request, region string) *metricContext {
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return newGenericMetricContext("zones", request, region, unusedMetricLabel, computeV1Version)
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}
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// GetZone creates a cloudprovider.Zone of the current zone and region
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func (gce *GCECloud) GetZone() (cloudprovider.Zone, error) {
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return cloudprovider.Zone{
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FailureDomain: gce.localZone,
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Region: gce.region,
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}, nil
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}
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// GetZoneByProviderID implements Zones.GetZoneByProviderID
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// This is particularly useful in external cloud providers where the kubelet
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// does not initialize node data.
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func (gce *GCECloud) GetZoneByProviderID(providerID string) (cloudprovider.Zone, error) {
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_, zone, _, err := splitProviderID(providerID)
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if err != nil {
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return cloudprovider.Zone{}, err
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}
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region, err := GetGCERegion(zone)
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if err != nil {
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return cloudprovider.Zone{}, err
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}
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return cloudprovider.Zone{FailureDomain: zone, Region: region}, nil
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}
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// GetZoneByNodeName implements Zones.GetZoneByNodeName
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// This is particularly useful in external cloud providers where the kubelet
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// does not initialize node data.
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func (gce *GCECloud) GetZoneByNodeName(nodeName types.NodeName) (cloudprovider.Zone, error) {
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instanceName := mapNodeNameToInstanceName(nodeName)
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instance, err := gce.getInstanceByName(instanceName)
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if err != nil {
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return cloudprovider.Zone{}, err
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}
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region, err := GetGCERegion(instance.Zone)
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if err != nil {
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return cloudprovider.Zone{}, err
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}
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return cloudprovider.Zone{FailureDomain: instance.Zone, Region: region}, nil
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}
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// ListZonesInRegion returns all zones in a GCP region
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func (gce *GCECloud) ListZonesInRegion(region string) ([]*compute.Zone, error) {
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mc := newZonesMetricContext("list", region)
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filter := fmt.Sprintf("region eq %v", gce.getRegionLink(region))
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list, err := gce.service.Zones.List(gce.projectID).Filter(filter).Do()
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if err != nil {
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return nil, mc.Observe(err)
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}
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return list.Items, mc.Observe(err)
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}
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func (gce *GCECloud) getRegionLink(region string) string {
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return gce.service.BasePath + strings.Join([]string{gce.projectID, "regions", region}, "/")
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}
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