external-dns/registry/txt_utils_test.go
Kai Udo c6ed951abf
fix(txt-registry): skip creation of already-existing TXT records (#4914) (#5459)
* fix(txt-registry): skip creation of already-existing TXT records (#4914)

* refactor(registry): store existing TXT records temporarily between Records and ApplyChanges

* refactor: apply review suggestion for code cleanup

* test: add coverage for recreating A/CNAME records when TXT exists

* refactor: extract generateTXTRecordWithFilter to avoid redundant filtering

* test: add comprehensive test cases and isolate test data for t.Parallel

* docs: clarify comment for isNotManaged to reflect actual behavior

* fix: apply SetIdentifier before filtering TXT records, add regression test

* chore: fix lint warnings

* refactor: use key struct instead of concatenated string for map keys to reduce memory usage

* fix txt_test.go

* fix txt_test.go dependency

* refactor(registry/txt): rename to isAbsent
2025-09-01 02:35:14 -07:00

94 lines
2.9 KiB
Go

/*
Copyright 2025 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 registry
import (
"sigs.k8s.io/external-dns/endpoint"
)
func newEndpointWithOwner(dnsName, target, recordType, ownerID string) *endpoint.Endpoint {
return newEndpointWithOwnerAndLabels(dnsName, target, recordType, ownerID, nil)
}
func newEndpointWithOwnerAndOwnedRecord(dnsName, target, recordType, ownerID, ownedRecord string) *endpoint.Endpoint {
return newEndpointWithOwnerAndLabels(dnsName, target, recordType, ownerID, endpoint.Labels{endpoint.OwnedRecordLabelKey: ownedRecord})
}
func newEndpointWithOwnerAndLabels(dnsName, target, recordType, ownerID string, labels endpoint.Labels) *endpoint.Endpoint {
e := endpoint.NewEndpoint(dnsName, recordType, target)
e.Labels[endpoint.OwnerLabelKey] = ownerID
for k, v := range labels {
e.Labels[k] = v
}
return e
}
func newEndpointWithOwnerResource(dnsName, target, recordType, ownerID, resource string) *endpoint.Endpoint {
e := endpoint.NewEndpoint(dnsName, recordType, target)
e.Labels[endpoint.OwnerLabelKey] = ownerID
e.Labels[endpoint.ResourceLabelKey] = resource
return e
}
// This is primarily used to prevent data races when running tests in parallel (t.Parallel).
func cloneEndpointsWithOpts(list []*endpoint.Endpoint, opt ...func(*endpoint.Endpoint)) []*endpoint.Endpoint {
cloned := make([]*endpoint.Endpoint, len(list))
for i, e := range list {
cloned[i] = cloneEndpointWithOpts(e, opt...)
}
return cloned
}
func cloneEndpointWithOpts(e *endpoint.Endpoint, opt ...func(*endpoint.Endpoint)) *endpoint.Endpoint {
targets := make(endpoint.Targets, len(e.Targets))
copy(targets, e.Targets)
// SameEndpoints treats nil and empty maps/slices as different.
// To avoid introducing unintended differences, we retain nil when original is nil.
var labels endpoint.Labels
if e.Labels != nil {
labels = make(endpoint.Labels, len(e.Labels))
for k, v := range e.Labels {
labels[k] = v
}
}
var providerSpecific endpoint.ProviderSpecific
if e.ProviderSpecific != nil {
providerSpecific = make(endpoint.ProviderSpecific, len(e.ProviderSpecific))
for i, p := range e.ProviderSpecific {
providerSpecific[i] = p
}
}
ttl := e.RecordTTL
ep := &endpoint.Endpoint{
DNSName: e.DNSName,
Targets: targets,
RecordType: e.RecordType,
RecordTTL: ttl,
Labels: labels,
ProviderSpecific: providerSpecific,
SetIdentifier: e.SetIdentifier,
}
for _, o := range opt {
o(ep)
}
return ep
}