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Merge pull request #119310 from thockin/warn_externalname_externalips

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API warnings for services with bad combos of ExternalIPs and ExternalName
This commit is contained in:
Kubernetes Prow Robot 2023-07-31 12:36:38 -07:00 committed by GitHub
commit d3b7391dc2
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2 changed files with 34 additions and 16 deletions
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7
pkg/api/service/warnings.go
View File

@ -53,6 +53,13 @@ func GetWarningsForService(service, oldService *api.Service) []string {
warnings = append(warnings, getWarningsForCIDR(field.NewPath("spec").Child("loadBalancerSourceRanges").Index(i), cidr)...)
}
if service.Spec.Type == api.ServiceTypeExternalName && len(service.Spec.ExternalIPs) > 0 {
warnings = append(warnings, fmt.Sprintf("spec.externalIPs is ignored when spec.type is %q", api.ServiceTypeExternalName))
}
if service.Spec.Type != api.ServiceTypeExternalName && service.Spec.ExternalName != "" {
warnings = append(warnings, fmt.Sprintf("spec.externalName is ignored when spec.type is not %q", api.ServiceTypeExternalName))
}
return warnings
}

25
pkg/api/service/warnings_test.go
View File

@ -31,30 +31,41 @@ func TestGetWarningsForService(t *testing.T) {
name string
tweakSvc func(svc *api.Service) // Given a basic valid service, each test case can customize it.
numWarnings int
}{
{
}{{
name: "new topology mode set",
tweakSvc: func(s *api.Service) {
s.Annotations = map[string]string{api.AnnotationTopologyMode: "foo"}
},
numWarnings: 0,
},
{
}, {
name: "deprecated hints annotation set",
tweakSvc: func(s *api.Service) {
s.Annotations = map[string]string{api.DeprecatedAnnotationTopologyAwareHints: "foo"}
},
numWarnings: 1,
}, {
name: "externalIPs set when type is ExternalName",
tweakSvc: func(s *api.Service) {
s.Spec.Type = api.ServiceTypeExternalName
s.Spec.ExternalIPs = []string{"1.2.3.4"}
},
}
numWarnings: 1,
}, {
name: "externalName set when type is not ExternalName",
tweakSvc: func(s *api.Service) {
s.Spec.Type = api.ServiceTypeClusterIP
s.Spec.ExternalName = "example.com"
},
numWarnings: 1,
}}
for _, tc := range testCases {
t.Run(tc.name, func(t *testing.T) {
svc := &api.Service{}
tc.tweakSvc(svc)
warnings := GetWarningsForService(svc, svc)
if len(warnings) != tc.numWarnings {
t.Errorf("Unexpected warning list: %v", warnings)
if want, got := tc.numWarnings, len(warnings); got != want {
t.Errorf("Unexpected warning list: expected %d, got %d\n%q", want, got, warnings)
}
})
}