kubernetes/pkg/controller/nodeipam/node_ipam_controller_test.go
2023-03-08 12:47:14 +08:00

162 lines
7.2 KiB
Go

//go:build !providerless
// +build !providerless
/*
Copyright 2018 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 nodeipam
import (
"context"
"errors"
"net"
"strings"
"testing"
v1 "k8s.io/api/core/v1"
metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
utilfeature "k8s.io/apiserver/pkg/util/feature"
"k8s.io/client-go/informers"
"k8s.io/client-go/kubernetes/fake"
featuregatetesting "k8s.io/component-base/featuregate/testing"
"k8s.io/klog/v2/ktesting"
"k8s.io/kubernetes/pkg/controller/nodeipam/ipam"
"k8s.io/kubernetes/pkg/controller/testutil"
"k8s.io/kubernetes/pkg/features"
"k8s.io/legacy-cloud-providers/gce"
netutils "k8s.io/utils/net"
)
func newTestNodeIpamController(ctx context.Context, clusterCIDR []*net.IPNet, serviceCIDR *net.IPNet, secondaryServiceCIDR *net.IPNet, nodeCIDRMaskSizes []int, allocatorType ipam.CIDRAllocatorType) (*Controller, error) {
clientSet := fake.NewSimpleClientset()
fakeNodeHandler := &testutil.FakeNodeHandler{
Existing: []*v1.Node{
{ObjectMeta: metav1.ObjectMeta{Name: "node0"}},
},
Clientset: fake.NewSimpleClientset(),
}
fakeClient := &fake.Clientset{}
fakeInformerFactory := informers.NewSharedInformerFactory(fakeClient, 0)
fakeNodeInformer := fakeInformerFactory.Core().V1().Nodes()
fakeClusterCIDRInformer := fakeInformerFactory.Networking().V1alpha1().ClusterCIDRs()
for _, node := range fakeNodeHandler.Existing {
fakeNodeInformer.Informer().GetStore().Add(node)
}
fakeGCE := gce.NewFakeGCECloud(gce.DefaultTestClusterValues())
return NewNodeIpamController(
ctx,
fakeNodeInformer, fakeClusterCIDRInformer, fakeGCE, clientSet,
clusterCIDR, serviceCIDR, secondaryServiceCIDR, nodeCIDRMaskSizes, allocatorType,
)
}
// TestNewNodeIpamControllerWithCIDRMasks tests if the controller can be
// created with combinations of network CIDRs and masks.
func TestNewNodeIpamControllerWithCIDRMasks(t *testing.T) {
emptyServiceCIDR := ""
for _, tc := range []struct {
desc string
clusterCIDR string
serviceCIDR string
secondaryServiceCIDR string
maskSize []int
allocatorType ipam.CIDRAllocatorType
expectedError error
}{
{"valid_range_allocator", "10.0.0.0/21", "10.1.0.0/21", emptyServiceCIDR, []int{24}, ipam.RangeAllocatorType, nil},
{"valid_range_allocator_dualstack", "10.0.0.0/21,2000::/48", "10.1.0.0/21", emptyServiceCIDR, []int{24, 64}, ipam.RangeAllocatorType, nil},
{"valid_range_allocator_dualstack_dualstackservice", "10.0.0.0/21,2000::/48", "10.1.0.0/21", "3000::/112", []int{24, 64}, ipam.RangeAllocatorType, nil},
{"valid_cloud_allocator", "10.0.0.0/21", "10.1.0.0/21", emptyServiceCIDR, []int{24}, ipam.CloudAllocatorType, nil},
{"valid_ipam_from_cluster", "10.0.0.0/21", "10.1.0.0/21", emptyServiceCIDR, []int{24}, ipam.IPAMFromClusterAllocatorType, nil},
{"valid_ipam_from_cloud", "10.0.0.0/21", "10.1.0.0/21", emptyServiceCIDR, []int{24}, ipam.IPAMFromCloudAllocatorType, nil},
{"valid_skip_cluster_CIDR_validation_for_cloud_allocator", "invalid", "10.1.0.0/21", emptyServiceCIDR, []int{24}, ipam.CloudAllocatorType, nil},
{"valid_CIDR_larger_than_mask_cloud_allocator", "10.0.0.0/16", "10.1.0.0/21", emptyServiceCIDR, []int{24}, ipam.CloudAllocatorType, nil},
{"invalid_cluster_CIDR", "", "10.1.0.0/21", emptyServiceCIDR, []int{24}, ipam.IPAMFromClusterAllocatorType, errors.New("Controller: Must specify --cluster-cidr if --allocate-node-cidrs is set")},
{"invalid_CIDR_smaller_than_mask_other_allocators", "10.0.0.0/26", "10.1.0.0/21", emptyServiceCIDR, []int{24}, ipam.IPAMFromCloudAllocatorType, errors.New("Controller: Invalid --cluster-cidr, mask size of cluster CIDR must be less than or equal to --node-cidr-mask-size configured for CIDR family")},
{"invalid_serviceCIDR_contains_clusterCIDR", "10.0.0.0/16", "10.0.0.0/8", emptyServiceCIDR, []int{24}, ipam.IPAMFromClusterAllocatorType, errors.New("error creating ipam controller: failed after occupy serviceCIDR: CIDR allocation failed; there are no remaining CIDRs left to allocate in the accepted range")},
{"invalid_CIDR_mask_size", "10.0.0.0/24,2000::/64", "10.1.0.0/21", emptyServiceCIDR, []int{24, 48}, ipam.IPAMFromClusterAllocatorType, errors.New("Controller: Invalid --cluster-cidr, mask size of cluster CIDR must be less than or equal to --node-cidr-mask-size configured for CIDR family")},
} {
test := tc
_, ctx := ktesting.NewTestContext(t)
t.Run(test.desc, func(t *testing.T) {
t.Parallel()
clusterCidrs, err := netutils.ParseCIDRs(strings.Split(test.clusterCIDR, ","))
if err != nil {
clusterCidrs = nil
}
_, serviceCIDRIpNet, err := netutils.ParseCIDRSloppy(test.serviceCIDR)
if err != nil {
serviceCIDRIpNet = nil
}
_, secondaryServiceCIDRIpNet, err := netutils.ParseCIDRSloppy(test.secondaryServiceCIDR)
if err != nil {
secondaryServiceCIDRIpNet = nil
}
_, err = newTestNodeIpamController(ctx, clusterCidrs, serviceCIDRIpNet, secondaryServiceCIDRIpNet, test.maskSize, test.allocatorType)
if test.expectedError == nil {
if err != nil {
t.Errorf("Test %s, unexpected error: %v", test.desc, err)
}
} else {
if err.Error() != test.expectedError.Error() {
t.Errorf("Test %s, got error: %v, expected error: %v", test.desc, err, test.expectedError)
}
}
})
}
}
// MultiCIDRRangeAllocatorType need enable feature gate
func TestNewNodeIpamControllerWithCIDRMasks2(t *testing.T) {
emptyServiceCIDR := ""
for _, tc := range []struct {
desc string
clusterCIDR string
serviceCIDR string
secondaryServiceCIDR string
maskSize []int
allocatorType ipam.CIDRAllocatorType
}{
{"valid_multi_cidr_range_allocator", "10.0.0.0/21", "10.1.0.0/21", emptyServiceCIDR, []int{24}, ipam.MultiCIDRRangeAllocatorType},
{"valid_multi_cidr_range_allocator_dualstack", "10.0.0.0/21,2000::/48", "10.1.0.0/21", emptyServiceCIDR, []int{24, 64}, ipam.MultiCIDRRangeAllocatorType},
} {
test := tc
_, ctx := ktesting.NewTestContext(t)
t.Run(test.desc, func(t *testing.T) {
defer featuregatetesting.SetFeatureGateDuringTest(t, utilfeature.DefaultFeatureGate, features.MultiCIDRRangeAllocator, true)()
clusterCidrs, err := netutils.ParseCIDRs(strings.Split(test.clusterCIDR, ","))
if err != nil {
clusterCidrs = nil
}
_, serviceCIDRIpNet, err := netutils.ParseCIDRSloppy(test.serviceCIDR)
if err != nil {
serviceCIDRIpNet = nil
}
_, secondaryServiceCIDRIpNet, err := netutils.ParseCIDRSloppy(test.secondaryServiceCIDR)
if err != nil {
secondaryServiceCIDRIpNet = nil
}
_, err = newTestNodeIpamController(ctx, clusterCidrs, serviceCIDRIpNet, secondaryServiceCIDRIpNet, test.maskSize, test.allocatorType)
if err != nil {
t.Errorf("Test %s, got error %v", test.desc, err)
}
})
}
}