| /* |
| Copyright 2017 The Kubernetes Authors. |
| |
| Licensed under the Apache License, Version 2.0 (the "License"); |
| you may not use this file except in compliance with the License. |
| You may obtain a copy of the License at |
| |
| http://www.apache.org/licenses/LICENSE-2.0 |
| |
| Unless required by applicable law or agreed to in writing, software |
| distributed under the License is distributed on an "AS IS" BASIS, |
| WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| See the License for the specific language governing permissions and |
| limitations under the License. |
| */ |
| |
| package gce |
| |
| import ( |
| "context" |
| "strings" |
| |
| compute "google.golang.org/api/compute/v1" |
| |
| "k8s.io/apimachinery/pkg/types" |
| cloudprovider "k8s.io/cloud-provider" |
| "k8s.io/kubernetes/pkg/cloudprovider/providers/gce/cloud" |
| "k8s.io/kubernetes/pkg/cloudprovider/providers/gce/cloud/filter" |
| ) |
| |
| func newZonesMetricContext(request, region string) *metricContext { |
| return newGenericMetricContext("zones", request, region, unusedMetricLabel, computeV1Version) |
| } |
| |
| // GetZone creates a cloudprovider.Zone of the current zone and region |
| func (g *Cloud) GetZone(ctx context.Context) (cloudprovider.Zone, error) { |
| return cloudprovider.Zone{ |
| FailureDomain: g.localZone, |
| Region: g.region, |
| }, nil |
| } |
| |
| // GetZoneByProviderID implements Zones.GetZoneByProviderID |
| // This is particularly useful in external cloud providers where the kubelet |
| // does not initialize node data. |
| func (g *Cloud) GetZoneByProviderID(ctx context.Context, providerID string) (cloudprovider.Zone, error) { |
| _, zone, _, err := splitProviderID(providerID) |
| if err != nil { |
| return cloudprovider.Zone{}, err |
| } |
| region, err := GetGCERegion(zone) |
| if err != nil { |
| return cloudprovider.Zone{}, err |
| } |
| return cloudprovider.Zone{FailureDomain: zone, Region: region}, nil |
| } |
| |
| // GetZoneByNodeName implements Zones.GetZoneByNodeName |
| // This is particularly useful in external cloud providers where the kubelet |
| // does not initialize node data. |
| func (g *Cloud) GetZoneByNodeName(ctx context.Context, nodeName types.NodeName) (cloudprovider.Zone, error) { |
| instanceName := mapNodeNameToInstanceName(nodeName) |
| instance, err := g.getInstanceByName(instanceName) |
| if err != nil { |
| return cloudprovider.Zone{}, err |
| } |
| region, err := GetGCERegion(instance.Zone) |
| if err != nil { |
| return cloudprovider.Zone{}, err |
| } |
| return cloudprovider.Zone{FailureDomain: instance.Zone, Region: region}, nil |
| } |
| |
| // ListZonesInRegion returns all zones in a GCP region |
| func (g *Cloud) ListZonesInRegion(region string) ([]*compute.Zone, error) { |
| ctx, cancel := cloud.ContextWithCallTimeout() |
| defer cancel() |
| |
| mc := newZonesMetricContext("list", region) |
| list, err := g.c.Zones().List(ctx, filter.Regexp("region", g.getRegionLink(region))) |
| if err != nil { |
| return nil, mc.Observe(err) |
| } |
| return list, mc.Observe(err) |
| } |
| |
| func (g *Cloud) getRegionLink(region string) string { |
| return g.service.BasePath + strings.Join([]string{g.projectID, "regions", region}, "/") |
| } |