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dc1e614a72
Each major interface is now in its own file. Any package private functions that are only referenced by a particular module was also moved to the corresponding file. All common helper functions were moved to gce_util.go. This change is a pure movement of code; no semantic changes were made.
116 lines
3.3 KiB
Go
116 lines
3.3 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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"net/http"
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"path"
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"strings"
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"k8s.io/apimachinery/pkg/types"
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"k8s.io/kubernetes/pkg/cloudprovider"
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"github.com/golang/glog"
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compute "google.golang.org/api/compute/v1"
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)
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func (gce *GCECloud) ListRoutes(clusterName string) ([]*cloudprovider.Route, error) {
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var routes []*cloudprovider.Route
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pageToken := ""
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page := 0
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for ; page == 0 || (pageToken != "" && page < maxPages); page++ {
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listCall := gce.service.Routes.List(gce.projectID)
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prefix := truncateClusterName(clusterName)
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listCall = listCall.Filter("name eq " + prefix + "-.*")
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if pageToken != "" {
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listCall = listCall.PageToken(pageToken)
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}
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res, err := listCall.Do()
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if err != nil {
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glog.Errorf("Error getting routes from GCE: %v", err)
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return nil, err
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}
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pageToken = res.NextPageToken
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for _, r := range res.Items {
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if r.Network != gce.networkURL {
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continue
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}
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// Not managed if route description != "k8s-node-route"
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if r.Description != k8sNodeRouteTag {
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continue
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}
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// Not managed if route name doesn't start with <clusterName>
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if !strings.HasPrefix(r.Name, prefix) {
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continue
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}
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target := path.Base(r.NextHopInstance)
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// TODO: Should we lastComponent(target) this?
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targetNodeName := types.NodeName(target) // NodeName == Instance Name on GCE
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routes = append(routes, &cloudprovider.Route{Name: r.Name, TargetNode: targetNodeName, DestinationCIDR: r.DestRange})
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}
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}
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if page >= maxPages {
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glog.Errorf("ListRoutes exceeded maxPages=%d for Routes.List; truncating.", maxPages)
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}
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return routes, nil
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}
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func (gce *GCECloud) CreateRoute(clusterName string, nameHint string, route *cloudprovider.Route) error {
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routeName := truncateClusterName(clusterName) + "-" + nameHint
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instanceName := mapNodeNameToInstanceName(route.TargetNode)
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targetInstance, err := gce.getInstanceByName(instanceName)
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if err != nil {
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return err
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}
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insertOp, err := gce.service.Routes.Insert(gce.projectID, &compute.Route{
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Name: routeName,
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DestRange: route.DestinationCIDR,
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NextHopInstance: fmt.Sprintf("zones/%s/instances/%s", targetInstance.Zone, targetInstance.Name),
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Network: gce.networkURL,
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Priority: 1000,
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Description: k8sNodeRouteTag,
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}).Do()
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if err != nil {
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if isHTTPErrorCode(err, http.StatusConflict) {
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glog.Info("Route %v already exists.")
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return nil
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} else {
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return err
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}
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}
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return gce.waitForGlobalOp(insertOp)
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}
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func (gce *GCECloud) DeleteRoute(clusterName string, route *cloudprovider.Route) error {
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deleteOp, err := gce.service.Routes.Delete(gce.projectID, route.Name).Do()
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if err != nil {
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return err
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}
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return gce.waitForGlobalOp(deleteOp)
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}
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func truncateClusterName(clusterName string) string {
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if len(clusterName) > 26 {
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return clusterName[:26]
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}
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return clusterName
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}
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