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Fix resetting service type to default when not specified #8165

Merged
merged 13 commits into from
Oct 31, 2024
Merged

Fix resetting service type to default when not specified #8165

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32fe7f9
Unit test verifying that the external service has the default cluster…
thbkrkr Oct 29, 2024
5b63694
Update NewExternalService with default ClusterIP if type not set
thbkrkr Oct 29, 2024
d692c82
Unit test verifying that a services needs to be recreated to go from …
thbkrkr Oct 29, 2024
d95f488
Shortcut applyServerSideValues when the service type has changed
thbkrkr Oct 29, 2024
1dbb757
Skip reconciliation if resource is being deleted
thbkrkr Oct 29, 2024
0d3a897
Check being deleted only after deleting
thbkrkr Oct 29, 2024
d38519e
Revert explicit check on type to recreate when type changes
thbkrkr Oct 29, 2024
4a9aac0
Update unit tests with default ClusterIP value
thbkrkr Oct 29, 2024
ecaf23e
nit: reuse svc and move
thbkrkr Oct 29, 2024
0218fd6
Revert being deleted detection in favor of handling AlreadyExists err…
thbkrkr Oct 30, 2024
79a182d
skip applyServerSideValues if the service type changes from something…
thbkrkr Oct 30, 2024
f320dcc
Better message after requeuing for external service reconciliation
thbkrkr Oct 30, 2024
c2acb4b
Merge branch 'main' into fix-reset-service-type
thbkrkr Oct 31, 2024
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5 changes: 5 additions & 0 deletions pkg/controller/common/service_control.go
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Original file line number Diff line number Diff line change
Expand Up @@ -88,6 +88,11 @@ func needsUpdate(expected *corev1.Service, reconciled *corev1.Service) bool {

// applyServerSideValues applies any default that may have been set from the reconciled version.
func applyServerSideValues(expected, reconciled *corev1.Service) {
// skip if the service type changes from something different to the default ClusterIP value
if reconciled.Spec.Type != corev1.ServiceTypeClusterIP && expected.Spec.Type != reconciled.Spec.Type {
return
}

// Type may be defaulted by the api server
if expected.Spec.Type == "" {
expected.Spec.Type = reconciled.Spec.Type
Expand Down
43 changes: 34 additions & 9 deletions pkg/controller/common/service_control_test.go
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Original file line number Diff line number Diff line change
Expand Up @@ -317,14 +317,12 @@ func Test_applyServerSideValues(t *testing.T) {
args: args{
expected: corev1.Service{Spec: corev1.ServiceSpec{}},
reconciled: corev1.Service{Spec: corev1.ServiceSpec{
Type: corev1.ServiceTypeClusterIP,
ClusterIP: "1.2.3.4",
ClusterIPs: []string{"1.2.3.4"},
SessionAffinity: corev1.ServiceAffinityClientIP,
}},
},
want: corev1.Service{Spec: corev1.ServiceSpec{
Type: corev1.ServiceTypeClusterIP,
ClusterIP: "1.2.3.4",
ClusterIPs: []string{"1.2.3.4"},
SessionAffinity: corev1.ServiceAffinityClientIP,
Expand All @@ -335,14 +333,12 @@ func Test_applyServerSideValues(t *testing.T) {
args: args{
expected: corev1.Service{Spec: corev1.ServiceSpec{}},
reconciled: corev1.Service{Spec: corev1.ServiceSpec{
Type: corev1.ServiceTypeClusterIP,
ClusterIP: "None",
ClusterIPs: []string{"None"},
SessionAffinity: corev1.ServiceAffinityClientIP,
}},
},
want: corev1.Service{Spec: corev1.ServiceSpec{
Type: corev1.ServiceTypeClusterIP,
ClusterIP: "None",
ClusterIPs: []string{"None"},
SessionAffinity: corev1.ServiceAffinityClientIP,
Expand Down Expand Up @@ -531,14 +527,12 @@ func Test_applyServerSideValues(t *testing.T) {
args: args{
expected: corev1.Service{Spec: corev1.ServiceSpec{}},
reconciled: corev1.Service{Spec: corev1.ServiceSpec{
Type: corev1.ServiceTypeClusterIP,
ClusterIP: "1.2.3.4",
SessionAffinity: corev1.ServiceAffinityClientIP,
IPFamilies: []corev1.IPFamily{corev1.IPv6Protocol},
}},
},
want: corev1.Service{Spec: corev1.ServiceSpec{
Type: corev1.ServiceTypeClusterIP,
ClusterIP: "1.2.3.4",
SessionAffinity: corev1.ServiceAffinityClientIP,
IPFamilies: []corev1.IPFamily{corev1.IPv6Protocol},
Expand All @@ -551,13 +545,11 @@ func Test_applyServerSideValues(t *testing.T) {
IPFamilies: []corev1.IPFamily{corev1.IPv6Protocol},
}},
reconciled: corev1.Service{Spec: corev1.ServiceSpec{
Type: corev1.ServiceTypeClusterIP,
ClusterIP: "1.2.3.4",
SessionAffinity: corev1.ServiceAffinityClientIP,
}},
},
want: corev1.Service{Spec: corev1.ServiceSpec{
Type: corev1.ServiceTypeClusterIP,
ClusterIP: "1.2.3.4",
SessionAffinity: corev1.ServiceAffinityClientIP,
IPFamilies: []corev1.IPFamily{corev1.IPv6Protocol},
Expand Down Expand Up @@ -602,7 +594,9 @@ func Test_applyServerSideValues(t *testing.T) {
{
name: "Reconciled LoadBalancerClass is used if the expected one is empty",
args: args{
expected: corev1.Service{Spec: corev1.ServiceSpec{}},
expected: corev1.Service{Spec: corev1.ServiceSpec{
Type: corev1.ServiceTypeLoadBalancer,
}},
reconciled: corev1.Service{Spec: corev1.ServiceSpec{
Type: corev1.ServiceTypeLoadBalancer,
LoadBalancerClass: ptr.To("service.k8s.aws/nlb"),
Expand Down Expand Up @@ -643,6 +637,37 @@ func Test_applyServerSideValues(t *testing.T) {
Type: corev1.ServiceTypeClusterIP,
}},
},
{
name: "Do not apply server side values if Type changed to the default ClusterIP from another type",
args: args{
expected: corev1.Service{Spec: corev1.ServiceSpec{
Type: corev1.ServiceTypeClusterIP,
}},
reconciled: corev1.Service{Spec: corev1.ServiceSpec{
Type: corev1.ServiceTypeNodePort,
ExternalTrafficPolicy: corev1.ServiceExternalTrafficPolicyCluster,
}},
},
want: corev1.Service{Spec: corev1.ServiceSpec{
Type: corev1.ServiceTypeClusterIP,
}},
},
{
name: "Apply server side values if Type changed from the default ClusterIP to another type",
args: args{
expected: corev1.Service{Spec: corev1.ServiceSpec{
Type: corev1.ServiceTypeNodePort,
}},
reconciled: corev1.Service{Spec: corev1.ServiceSpec{
Type: corev1.ServiceTypeNodePort,
ClusterIP: "1.2.3.4",
}},
},
want: corev1.Service{Spec: corev1.ServiceSpec{
Type: corev1.ServiceTypeNodePort,
ClusterIP: "1.2.3.4",
}},
},
}
for _, tt := range tests {
t.Run(tt.name, func(t *testing.T) {
Expand Down
3 changes: 3 additions & 0 deletions pkg/controller/elasticsearch/driver/driver.go
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Original file line number Diff line number Diff line change
Expand Up @@ -145,6 +145,9 @@ func (d *defaultDriver) Reconcile(ctx context.Context) *reconciler.Results {

externalService, err := common.ReconcileService(ctx, d.Client, services.NewExternalService(d.ES), &d.ES)
if err != nil {
if k8serrors.IsAlreadyExists(err) {
return results.WithReconciliationState(defaultRequeue.WithReason(fmt.Sprintf("Pending %s service recreation", services.ExternalServiceName(d.ES.Name))))
}
return results.WithError(err)
}

Expand Down
4 changes: 4 additions & 0 deletions pkg/controller/elasticsearch/services/services.go
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Expand Up @@ -115,6 +115,10 @@ func NewExternalService(es esv1.Elasticsearch) *corev1.Service {
svc.ObjectMeta.Namespace = es.Namespace
svc.ObjectMeta.Name = ExternalServiceName(es.Name)

// defaults to ClusterIP if not set
if svc.Spec.Type == "" {
svc.Spec.Type = corev1.ServiceTypeClusterIP
}
labels := label.NewLabels(nsn)
ports := []corev1.ServicePort{
{
Expand Down
23 changes: 13 additions & 10 deletions pkg/controller/elasticsearch/services/services_test.go
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Original file line number Diff line number Diff line change
Expand Up @@ -68,6 +68,10 @@ func TestNewExternalService(t *testing.T) {
httpConf commonv1.HTTPConfig
wantSvc func() corev1.Service
}{
{
name: "default clusterIP service",
wantSvc: mkHTTPSService,
},
{
name: "no TLS",
httpConf: commonv1.HTTPConfig{
Expand All @@ -92,11 +96,7 @@ func TestNewExternalService(t *testing.T) {
},
},
},
wantSvc: func() corev1.Service {
svc := mkHTTPService()
svc.Spec.Ports[0].Name = "https"
return svc
},
wantSvc: mkHTTPSService,
},
{
name: "user-provided certificate",
Expand All @@ -107,11 +107,7 @@ func TestNewExternalService(t *testing.T) {
},
},
},
wantSvc: func() corev1.Service {
svc := mkHTTPService()
svc.Spec.Ports[0].Name = "https"
return svc
},
wantSvc: mkHTTPSService,
},
}

Expand Down Expand Up @@ -171,6 +167,7 @@ func mkHTTPService() corev1.Service {
},
},
Spec: corev1.ServiceSpec{
Type: corev1.ServiceTypeClusterIP,
Ports: []corev1.ServicePort{
{
Name: "http",
Expand All @@ -186,6 +183,12 @@ func mkHTTPService() corev1.Service {
}
}

func mkHTTPSService() corev1.Service {
svc := mkHTTPService()
svc.Spec.Ports[0].Name = "https"
return svc
}

func mkTransportService() corev1.Service {
return corev1.Service{
ObjectMeta: metav1.ObjectMeta{
Expand Down