kubernetes/pkg/controller/nodeipam/ipam/test/utils.go
Sarvesh Rangnekar 5b801ba9f9 Introduce MultiCIDRRangeAllocator
MultiCIDRRangeAllocator is a new Range Allocator which makes using
multiple ClusterCIDRs possible. It consists of two controllers, one for
reconciling the ClusterCIDR API objects and the other for allocating
Pod CIDRs to the nodes.

The allocation is based on the rules defined in
https://github.com/kubernetes/enhancements/tree/master/keps/sig-network/2593-multiple-cluster-cidrs
2022-08-06 00:10:39 +00:00

67 lines
2.0 KiB
Go

/*
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 test
import (
"net"
"time"
"k8s.io/apimachinery/pkg/util/wait"
"k8s.io/client-go/informers"
coreinformers "k8s.io/client-go/informers/core/v1"
"k8s.io/client-go/kubernetes/fake"
"k8s.io/kubernetes/pkg/controller"
"k8s.io/kubernetes/pkg/controller/testutil"
netutils "k8s.io/utils/net"
)
const NodePollInterval = 10 * time.Millisecond
var AlwaysReady = func() bool { return true }
// MustParseCIDR returns the CIDR range parsed from s or panics if the string
// cannot be parsed.
func MustParseCIDR(s string) *net.IPNet {
_, ret, err := netutils.ParseCIDRSloppy(s)
if err != nil {
panic(err)
}
return ret
}
// FakeNodeInformer creates a fakeNodeInformer using the provided fakeNodeHandler.
func FakeNodeInformer(fakeNodeHandler *testutil.FakeNodeHandler) coreinformers.NodeInformer {
fakeClient := &fake.Clientset{}
fakeInformerFactory := informers.NewSharedInformerFactory(fakeClient, controller.NoResyncPeriodFunc())
fakeNodeInformer := fakeInformerFactory.Core().V1().Nodes()
for _, node := range fakeNodeHandler.Existing {
fakeNodeInformer.Informer().GetStore().Add(node)
}
return fakeNodeInformer
}
func WaitForUpdatedNodeWithTimeout(nodeHandler *testutil.FakeNodeHandler, number int, timeout time.Duration) error {
return wait.Poll(NodePollInterval, timeout, func() (bool, error) {
if len(nodeHandler.GetUpdatedNodesCopy()) >= number {
return true, nil
}
return false, nil
})
}