133 lines
3.7 KiB
Go
133 lines
3.7 KiB
Go
/*
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Copyright 2019 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 options
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import (
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"net"
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"testing"
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utilfeature "k8s.io/apiserver/pkg/util/feature"
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featuregatetesting "k8s.io/component-base/featuregate/testing"
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"k8s.io/kubernetes/pkg/features"
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)
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func makeOptionsWithCIDRs(serviceCIDR string, secondaryServiceCIDR string) *ServerRunOptions {
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value := serviceCIDR
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if len(secondaryServiceCIDR) > 0 {
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value = value + "," + secondaryServiceCIDR
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}
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var primaryCIDR, secondaryCIDR net.IPNet
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if len(serviceCIDR) > 0 {
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_, cidr, _ := net.ParseCIDR(serviceCIDR)
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if cidr != nil {
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primaryCIDR = *(cidr)
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}
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}
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if len(secondaryServiceCIDR) > 0 {
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_, cidr, _ := net.ParseCIDR(secondaryServiceCIDR)
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if cidr != nil {
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secondaryCIDR = *(cidr)
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}
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}
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return &ServerRunOptions{
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ServiceClusterIPRanges: value,
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PrimaryServiceClusterIPRange: primaryCIDR,
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SecondaryServiceClusterIPRange: secondaryCIDR,
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}
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}
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func TestClusterSerivceIPRange(t *testing.T) {
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testCases := []struct {
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name string
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options *ServerRunOptions
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enableDualStack bool
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expectErrors bool
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}{
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{
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name: "no service cidr",
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expectErrors: true,
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options: makeOptionsWithCIDRs("", ""),
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enableDualStack: false,
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},
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{
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name: "only secondary service cidr, dual stack gate on",
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expectErrors: true,
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options: makeOptionsWithCIDRs("", "10.0.0.0/16"),
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enableDualStack: true,
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},
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{
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name: "only secondary service cidr, dual stack gate off",
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expectErrors: true,
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options: makeOptionsWithCIDRs("", "10.0.0.0/16"),
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enableDualStack: false,
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},
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{
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name: "primary and secondary are provided but not dual stack v4-v4",
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expectErrors: true,
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options: makeOptionsWithCIDRs("10.0.0.0/16", "11.0.0.0/16"),
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enableDualStack: true,
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},
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{
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name: "primary and secondary are provided but not dual stack v6-v6",
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expectErrors: true,
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options: makeOptionsWithCIDRs("2000::/108", "3000::/108"),
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enableDualStack: true,
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},
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{
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name: "valid dual stack with gate disabled",
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expectErrors: true,
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options: makeOptionsWithCIDRs("10.0.0.0/16", "3000::/108"),
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enableDualStack: false,
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},
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/* success cases */
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{
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name: "valid primary",
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expectErrors: false,
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options: makeOptionsWithCIDRs("10.0.0.0/16", ""),
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enableDualStack: false,
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},
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{
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name: "valid v4-v6 dual stack + gate on",
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expectErrors: false,
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options: makeOptionsWithCIDRs("10.0.0.0/16", "3000::/108"),
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enableDualStack: true,
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},
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{
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name: "valid v6-v4 dual stack + gate on",
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expectErrors: false,
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options: makeOptionsWithCIDRs("3000::/108", "10.0.0.0/16"),
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enableDualStack: true,
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},
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}
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for _, tc := range testCases {
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t.Run(tc.name, func(t *testing.T) {
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defer featuregatetesting.SetFeatureGateDuringTest(t, utilfeature.DefaultFeatureGate, features.IPv6DualStack, tc.enableDualStack)()
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errs := validateClusterIPFlags(tc.options)
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if len(errs) > 0 && !tc.expectErrors {
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t.Errorf("expected no errors, errors found %+v", errs)
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}
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if len(errs) == 0 && tc.expectErrors {
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t.Errorf("expected errors, no errors found")
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}
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})
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}
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}
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