796097ae40
**What type of PR is this?** /kind cleanup **What this PR does / why we need it**: Staging the GCE Cloud Provider as part of KEP [20190125-removing-in-tree-providers](https://github.com/kubernetes/enhancements/blob/master/keps/sig-cloud-provider/20190125-removing-in-tree-providers.md). Staging repo setup here https://github.com/kubernetes/legacy-cloud-providers Moves the GCE cloud provider implementation to staging. This is in preparation for moving the cloud provider code out of tree entirely. However we need it in staging while the code needs to be consumed both in/out of tree. **Which issue(s) this PR fixes**: Fixes # **Special notes for your reviewer**: **Does this PR introduce a user-facing change?**: ``` NONE ``` Updated import dependency tracking. Factored in the cleanup from #77412 Minor fix to go.mod.
126 lines
3.5 KiB
Go
126 lines
3.5 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 ipam
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import (
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"context"
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"encoding/json"
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"net"
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"k8s.io/klog"
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"k8s.io/api/core/v1"
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metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
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"k8s.io/apimachinery/pkg/types"
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clientset "k8s.io/client-go/kubernetes"
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v1core "k8s.io/client-go/kubernetes/typed/core/v1"
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"k8s.io/client-go/tools/record"
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nodeutil "k8s.io/kubernetes/pkg/util/node"
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"k8s.io/legacy-cloud-providers/gce"
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"k8s.io/metrics/pkg/client/clientset/versioned/scheme"
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)
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type adapter struct {
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k8s clientset.Interface
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cloud *gce.Cloud
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recorder record.EventRecorder
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}
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func newAdapter(k8s clientset.Interface, cloud *gce.Cloud) *adapter {
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ret := &adapter{
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k8s: k8s,
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cloud: cloud,
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}
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broadcaster := record.NewBroadcaster()
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broadcaster.StartLogging(klog.Infof)
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ret.recorder = broadcaster.NewRecorder(scheme.Scheme, v1.EventSource{Component: "cloudCIDRAllocator"})
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klog.V(0).Infof("Sending events to api server.")
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broadcaster.StartRecordingToSink(&v1core.EventSinkImpl{
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Interface: k8s.CoreV1().Events(""),
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})
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return ret
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}
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func (a *adapter) Alias(ctx context.Context, nodeName string) (*net.IPNet, error) {
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cidrs, err := a.cloud.AliasRanges(types.NodeName(nodeName))
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if err != nil {
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return nil, err
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}
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switch len(cidrs) {
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case 0:
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return nil, nil
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case 1:
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break
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default:
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klog.Warningf("Node %q has more than one alias assigned (%v), defaulting to the first", nodeName, cidrs)
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}
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_, cidrRange, err := net.ParseCIDR(cidrs[0])
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if err != nil {
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return nil, err
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}
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return cidrRange, nil
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}
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func (a *adapter) AddAlias(ctx context.Context, nodeName string, cidrRange *net.IPNet) error {
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return a.cloud.AddAliasToInstance(types.NodeName(nodeName), cidrRange)
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}
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func (a *adapter) Node(ctx context.Context, name string) (*v1.Node, error) {
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return a.k8s.CoreV1().Nodes().Get(name, metav1.GetOptions{})
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}
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func (a *adapter) UpdateNodePodCIDR(ctx context.Context, node *v1.Node, cidrRange *net.IPNet) error {
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patch := map[string]interface{}{
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"apiVersion": node.APIVersion,
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"kind": node.Kind,
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"metadata": map[string]interface{}{"name": node.Name},
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"spec": map[string]interface{}{"podCIDR": cidrRange.String()},
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}
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bytes, err := json.Marshal(patch)
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if err != nil {
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return err
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}
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_, err = a.k8s.CoreV1().Nodes().Patch(node.Name, types.StrategicMergePatchType, bytes)
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return err
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}
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func (a *adapter) UpdateNodeNetworkUnavailable(nodeName string, unavailable bool) error {
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condition := v1.ConditionFalse
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if unavailable {
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condition = v1.ConditionTrue
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}
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return nodeutil.SetNodeCondition(a.k8s, types.NodeName(nodeName), v1.NodeCondition{
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Type: v1.NodeNetworkUnavailable,
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Status: condition,
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Reason: "RouteCreated",
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Message: "NodeController created an implicit route",
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LastTransitionTime: metav1.Now(),
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})
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}
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func (a *adapter) EmitNodeWarningEvent(nodeName, reason, fmt string, args ...interface{}) {
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ref := &v1.ObjectReference{Kind: "Node", Name: nodeName}
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a.recorder.Eventf(ref, v1.EventTypeNormal, reason, fmt, args...)
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}
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