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plugin/kubernetes: preallocate slice capacities in controller query lookups (#8343)

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Signed-off-by: Manuel Rüger <manuel@rueg.eu>
This commit is contained in:
Manuel Rüger
2026-07-30 03:25:44 +02:00
committed by GitHub
parent ad49f74edd
commit 88c558ad7c
1 changed files with 11 additions and 2 deletions
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13
plugin/kubernetes/controller.go
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@@ -485,6 +485,7 @@ func (dns *dnsControl) HasSynced() bool {
func (dns *dnsControl) ServiceList() (svcs []*object.Service) {
os := dns.svcLister.List()
svcs = make([]*object.Service, 0, len(os))
for _, o := range os {
s, ok := o.(*object.Service)
if !ok {
@@ -497,6 +498,7 @@ func (dns *dnsControl) ServiceList() (svcs []*object.Service) {
func (dns *dnsControl) ServiceImportList() (svcs []*object.ServiceImport) {
os := dns.svcImportLister.List()
svcs = make([]*object.ServiceImport, 0, len(os))
for _, o := range os {
s, ok := o.(*object.ServiceImport)
if !ok {
@@ -509,6 +511,7 @@ func (dns *dnsControl) ServiceImportList() (svcs []*object.ServiceImport) {
func (dns *dnsControl) EndpointsList() (eps []*object.Endpoints) {
os := dns.epLister.List()
eps = make([]*object.Endpoints, 0, len(os))
for _, o := range os {
ep, ok := o.(*object.Endpoints)
if !ok {
@@ -524,6 +527,7 @@ func (dns *dnsControl) PodIndex(ip string) (pods []*object.Pod) {
if err != nil {
return nil
}
pods = make([]*object.Pod, 0, len(os))
for _, o := range os {
p, ok := o.(*object.Pod)
if !ok {
@@ -539,6 +543,7 @@ func (dns *dnsControl) SvcIndex(idx string) (svcs []*object.Service) {
if err != nil {
return nil
}
svcs = make([]*object.Service, 0, len(os))
for _, o := range os {
s, ok := o.(*object.Service)
if !ok {
@@ -554,7 +559,7 @@ func (dns *dnsControl) SvcIndexReverse(ip string) (svcs []*object.Service) {
if err != nil {
return nil
}
svcs = make([]*object.Service, 0, len(os))
for _, o := range os {
s, ok := o.(*object.Service)
if !ok {
@@ -570,7 +575,7 @@ func (dns *dnsControl) SvcExtIndexReverse(ip string) (svcs []*object.Service) {
if err != nil {
return nil
}
svcs = make([]*object.Service, 0, len(os))
for _, o := range os {
s, ok := o.(*object.Service)
if !ok {
@@ -586,6 +591,7 @@ func (dns *dnsControl) SvcImportIndex(idx string) (svcs []*object.ServiceImport)
if err != nil {
return nil
}
svcs = make([]*object.ServiceImport, 0, len(os))
for _, o := range os {
s, ok := o.(*object.ServiceImport)
if !ok {
@@ -601,6 +607,7 @@ func (dns *dnsControl) EpIndex(idx string) (ep []*object.Endpoints) {
if err != nil {
return nil
}
ep = make([]*object.Endpoints, 0, len(os))
for _, o := range os {
e, ok := o.(*object.Endpoints)
if !ok {
@@ -616,6 +623,7 @@ func (dns *dnsControl) EpIndexReverse(ip string) (ep []*object.Endpoints) {
if err != nil {
return nil
}
ep = make([]*object.Endpoints, 0, len(os))
for _, o := range os {
e, ok := o.(*object.Endpoints)
if !ok {
@@ -631,6 +639,7 @@ func (dns *dnsControl) McEpIndex(idx string) (ep []*object.MultiClusterEndpoints
if err != nil {
return nil
}
ep = make([]*object.MultiClusterEndpoints, 0, len(os))
for _, o := range os {
e, ok := o.(*object.MultiClusterEndpoints)
if !ok {