/
controller_test.go
1207 lines (1128 loc) · 30.3 KB
/
controller_test.go
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// SPDX-License-Identifier:Apache-2.0
package main
import (
"fmt"
"math/rand"
"net"
"testing"
"go.universe.tf/metallb/internal/allocator"
"go.universe.tf/metallb/internal/config"
"go.universe.tf/metallb/internal/k8s/controllers"
"go.universe.tf/metallb/internal/k8s/epslices"
"github.com/go-kit/log"
"github.com/google/go-cmp/cmp"
v1 "k8s.io/api/core/v1"
metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
"k8s.io/apimachinery/pkg/labels"
"k8s.io/apimachinery/pkg/util/sets"
)
func diffService(a, b *v1.Service) string {
// v5 of the k8s client does not correctly compare nil
// *metav1.Time objects, which svc.ObjectMeta contains. Add
// some dummy non-nil values to all of in, want, got to work
// around this until we migrate to v6.
if a != nil {
newA := new(v1.Service)
*newA = *a
newA.ObjectMeta.DeletionTimestamp = &metav1.Time{}
a = newA
}
if b != nil {
newB := new(v1.Service)
*newB = *b
newB.ObjectMeta.DeletionTimestamp = &metav1.Time{}
b = newB
}
return cmp.Diff(a, b)
}
func ipnet(s string) *net.IPNet {
_, n, err := net.ParseCIDR(s)
if err != nil {
panic(err)
}
return n
}
func statusAssigned(ips []string) v1.ServiceStatus {
lbIngressIPs := []v1.LoadBalancerIngress{}
for _, ip := range ips {
lbIngressIPs = append(lbIngressIPs, v1.LoadBalancerIngress{IP: ip})
}
return v1.ServiceStatus{
LoadBalancer: v1.LoadBalancerStatus{
Ingress: lbIngressIPs,
},
}
}
// testK8S implements service by recording what the controller wants
// to do to k8s.
type testK8S struct {
updateService *v1.Service
updateServiceStatus *v1.ServiceStatus
loggedWarning bool
t *testing.T
}
func (s *testK8S) UpdateStatus(svc *v1.Service) error {
s.updateServiceStatus = &svc.Status
return nil
}
func (s *testK8S) Infof(_ *v1.Service, evtType string, msg string, args ...interface{}) {
s.t.Logf("k8s Info event %q: %s", evtType, fmt.Sprintf(msg, args...))
}
func (s *testK8S) Errorf(_ *v1.Service, evtType string, msg string, args ...interface{}) {
s.t.Logf("k8s Warning event %q: %s", evtType, fmt.Sprintf(msg, args...))
s.loggedWarning = true
}
func (s *testK8S) reset() {
s.updateService = nil
s.updateServiceStatus = nil
s.loggedWarning = false
}
func (s *testK8S) gotService(in *v1.Service) *v1.Service {
if s.updateService == nil && s.updateServiceStatus == nil {
return nil
}
ret := new(v1.Service)
if in != nil {
*ret = *in
}
if s.updateService != nil {
*ret = *s.updateService
}
if s.updateServiceStatus != nil {
ret.Status = *s.updateServiceStatus
}
return ret
}
func TestControllerMutation(t *testing.T) {
testSelector, err := labels.Parse("team=metallb")
if err != nil {
t.Fatalf("failed to parse test selector")
}
k := &testK8S{t: t}
c := &controller{
ips: allocator.New(),
client: k,
}
pools := &config.Pools{ByName: map[string]*config.Pool{
"pool1": {
Name: "pool1",
AutoAssign: true,
CIDR: []*net.IPNet{ipnet("1.2.3.0/31")},
},
"pool2": {
Name: "pool2",
AutoAssign: false,
CIDR: []*net.IPNet{ipnet("3.4.5.6/32")},
},
"pool3": {
Name: "pool3",
AutoAssign: true,
CIDR: []*net.IPNet{ipnet("1000::/127")},
},
"pool4": {
Name: "pool4",
AutoAssign: false,
CIDR: []*net.IPNet{ipnet("2000::1/128")},
},
"pool5": {
Name: "pool5",
AutoAssign: true,
CIDR: []*net.IPNet{ipnet("1.2.3.0/31"), ipnet("1000::/127")},
},
"pool6": {
Name: "pool6",
AutoAssign: true,
CIDR: []*net.IPNet{ipnet("7.8.9.0/31")},
ServiceAllocations: &config.ServiceAllocation{Namespaces: sets.New("test-ns1"),
Priority: 10},
},
"pool7": {
Name: "pool7",
AutoAssign: true,
CIDR: []*net.IPNet{ipnet("10.11.12.0/31")},
ServiceAllocations: &config.ServiceAllocation{Namespaces: sets.New("test-ns1"),
Priority: 11},
},
"pool8": {
Name: "pool8",
AutoAssign: true,
CIDR: []*net.IPNet{ipnet("13.14.15.0/31")},
ServiceAllocations: &config.ServiceAllocation{ServiceSelectors: []labels.Selector{testSelector},
Priority: 9},
},
"pool9": {
Name: "pool9",
AutoAssign: true,
CIDR: []*net.IPNet{ipnet("16.17.18.0/31")},
ServiceAllocations: &config.ServiceAllocation{Namespaces: sets.New("test-ns2")},
},
"pool10": {
Name: "pool10",
AutoAssign: true,
CIDR: []*net.IPNet{ipnet("19.20.21.0/31")},
ServiceAllocations: &config.ServiceAllocation{ServiceSelectors: []labels.Selector{testSelector},
Priority: 8},
},
"pool11": {
Name: "pool11",
AutoAssign: true,
CIDR: []*net.IPNet{ipnet("22.23.24.0/31")},
ServiceAllocations: &config.ServiceAllocation{Namespaces: sets.New("test-ns1"),
ServiceSelectors: []labels.Selector{testSelector}, Priority: 8},
},
"pool12": {
Name: "pool12",
AutoAssign: true,
CIDR: []*net.IPNet{ipnet("25.26.27.0/31")},
ServiceAllocations: &config.ServiceAllocation{Namespaces: sets.New("test-ns1"),
ServiceSelectors: []labels.Selector{testSelector}, Priority: 5},
},
}, ByNamespace: map[string][]string{"test-ns1": {"pool6", "pool7", "pool11", "pool12"}, "test-ns2": {"pool9"}},
ByServiceSelector: []string{"pool8", "pool10", "pool11", "pool12"},
}
l := log.NewNopLogger()
// For this test, we just set a static config and immediately sync
// the controller. The mutations around config setting and syncing
// are tested elsewhere.
if c.SetPools(l, pools) == controllers.SyncStateError {
t.Fatalf("SetPools failed")
}
// In steady state, every input below should be equivalent to a
// pure function that reliably produces the same end state
// regardless of past controller state.
tests := []struct {
desc string
in *v1.Service
want *v1.Service
wantErr bool
}{
{
desc: "deleted balancer",
},
{
desc: "simple non-LoadBalancer",
in: &v1.Service{
Spec: v1.ServiceSpec{
Type: "ClusterIP",
ClusterIPs: []string{"1.2.3.4"},
},
},
},
{
desc: "simple LoadBalancer",
in: &v1.Service{
Spec: v1.ServiceSpec{
Type: "LoadBalancer",
ClusterIPs: []string{"1.2.3.4"},
},
},
want: &v1.Service{
Spec: v1.ServiceSpec{
ClusterIPs: []string{"1.2.3.4"},
Type: "LoadBalancer",
},
Status: statusAssigned([]string{"1.2.3.0"}),
},
},
{
desc: "request specific IP",
in: &v1.Service{
Spec: v1.ServiceSpec{
ClusterIPs: []string{"1.2.3.4"},
Type: "LoadBalancer",
LoadBalancerIP: "1.2.3.1",
},
},
want: &v1.Service{
Spec: v1.ServiceSpec{
ClusterIPs: []string{"1.2.3.4"},
Type: "LoadBalancer",
LoadBalancerIP: "1.2.3.1",
},
Status: statusAssigned([]string{"1.2.3.1"}),
},
},
{
desc: "request specific IP via custom annotation",
in: &v1.Service{
ObjectMeta: metav1.ObjectMeta{
Annotations: map[string]string{
annotationLoadBalancerIPs: "1.2.3.1",
},
},
Spec: v1.ServiceSpec{
ClusterIPs: []string{"1.2.3.4"},
Type: "LoadBalancer",
},
},
want: &v1.Service{
ObjectMeta: metav1.ObjectMeta{
Annotations: map[string]string{
annotationLoadBalancerIPs: "1.2.3.1",
},
},
Spec: v1.ServiceSpec{
ClusterIPs: []string{"1.2.3.4"},
Type: "LoadBalancer",
},
Status: statusAssigned([]string{"1.2.3.1"}),
},
},
{
desc: "request IP from both svc.spec.LoadBalancerIP and custom annotation",
in: &v1.Service{
ObjectMeta: metav1.ObjectMeta{
Annotations: map[string]string{
annotationLoadBalancerIPs: "1.2.3.1",
},
},
Spec: v1.ServiceSpec{
ClusterIPs: []string{"1.2.3.4"},
Type: "LoadBalancer",
LoadBalancerIP: "1.2.3.2",
},
},
wantErr: true,
},
{
desc: "request invalid IP",
in: &v1.Service{
Spec: v1.ServiceSpec{
Type: "LoadBalancer",
LoadBalancerIP: "please sir may I have an IP address thank you",
ClusterIPs: []string{"1.2.3.4"},
},
},
wantErr: true,
},
{
desc: "incompatible ip and address pool annotations",
in: &v1.Service{
ObjectMeta: metav1.ObjectMeta{
Annotations: map[string]string{
annotationLoadBalancerIPs: "1.2.3.1",
annotationAddressPool: "pool2",
},
},
Spec: v1.ServiceSpec{
ClusterIPs: []string{"1.2.3.4"},
Type: "LoadBalancer",
},
},
wantErr: true,
},
{
desc: "request invalid IP via custom annotation",
in: &v1.Service{
ObjectMeta: metav1.ObjectMeta{
Annotations: map[string]string{
annotationLoadBalancerIPs: "please sir may I have an IP address thank you",
},
},
Spec: v1.ServiceSpec{
ClusterIPs: []string{"1.2.3.4"},
Type: "LoadBalancer",
},
},
wantErr: true,
},
{
desc: "request two IPs from same ip family via custom annotation",
in: &v1.Service{
ObjectMeta: metav1.ObjectMeta{
Annotations: map[string]string{
annotationLoadBalancerIPs: "1.2.3.1,1.2.3.2",
},
},
Spec: v1.ServiceSpec{
ClusterIPs: []string{"1.2.3.4"},
Type: "LoadBalancer",
},
},
wantErr: true,
},
{
desc: "request infeasible IP",
in: &v1.Service{
Spec: v1.ServiceSpec{
Type: "LoadBalancer",
LoadBalancerIP: "1.2.3.4",
ClusterIPs: []string{"1.2.3.4"},
},
Status: statusAssigned([]string{"1.2.3.1"}),
},
want: &v1.Service{
Spec: v1.ServiceSpec{
Type: "LoadBalancer",
LoadBalancerIP: "1.2.3.4",
ClusterIPs: []string{"1.2.3.4"},
},
},
wantErr: true,
},
{
desc: "request IP from specific pool",
in: &v1.Service{
ObjectMeta: metav1.ObjectMeta{
Annotations: map[string]string{
annotationAddressPool: "pool1",
},
},
Spec: v1.ServiceSpec{
Type: "LoadBalancer",
ClusterIPs: []string{"1.2.3.4"},
},
},
want: &v1.Service{
ObjectMeta: metav1.ObjectMeta{
Annotations: map[string]string{
annotationAddressPool: "pool1",
},
},
Spec: v1.ServiceSpec{
Type: "LoadBalancer",
ClusterIPs: []string{"1.2.3.4"},
},
Status: statusAssigned([]string{"1.2.3.0"}),
},
},
{
desc: "switch to a different specific pool",
in: &v1.Service{
ObjectMeta: metav1.ObjectMeta{
Annotations: map[string]string{
annotationAddressPool: "pool2",
},
},
Spec: v1.ServiceSpec{
ClusterIPs: []string{"1.2.3.4"},
Type: "LoadBalancer",
},
Status: statusAssigned([]string{"1.2.3.0"}),
},
want: &v1.Service{
ObjectMeta: metav1.ObjectMeta{
Annotations: map[string]string{
annotationAddressPool: "pool2",
},
},
Spec: v1.ServiceSpec{
ClusterIPs: []string{"1.2.3.4"},
Type: "LoadBalancer",
},
Status: statusAssigned([]string{"3.4.5.6"}),
},
},
{
desc: "unknown pool requested",
in: &v1.Service{
ObjectMeta: metav1.ObjectMeta{
Annotations: map[string]string{
annotationAddressPool: "does-not-exist",
},
},
Spec: v1.ServiceSpec{
ClusterIPs: []string{"1.2.3.4"},
Type: "LoadBalancer",
},
},
wantErr: true,
},
{
desc: "invalid IP assigned",
in: &v1.Service{
Spec: v1.ServiceSpec{
Type: "LoadBalancer",
ClusterIPs: []string{"1.2.3.4"},
},
Status: statusAssigned([]string{"2.3.4.5"}),
},
want: &v1.Service{
Spec: v1.ServiceSpec{
Type: "LoadBalancer",
ClusterIPs: []string{"1.2.3.4"},
},
Status: statusAssigned([]string{"1.2.3.0"}),
},
},
{
desc: "invalid ingress state",
in: &v1.Service{
Spec: v1.ServiceSpec{
Type: "LoadBalancer",
ClusterIPs: []string{"1.2.3.4"},
},
Status: v1.ServiceStatus{
LoadBalancer: v1.LoadBalancerStatus{
Ingress: []v1.LoadBalancerIngress{
{
Hostname: "foo.bar.local",
},
{
IP: "10.10.10.10",
},
},
},
},
},
want: &v1.Service{
Spec: v1.ServiceSpec{
Type: "LoadBalancer",
ClusterIPs: []string{"1.2.3.4"},
},
Status: statusAssigned([]string{"1.2.3.0"}),
},
},
{
desc: "former LoadBalancer, now NodePort",
in: &v1.Service{
Spec: v1.ServiceSpec{
Type: "NodePort",
ClusterIPs: []string{"1.2.3.4"},
},
Status: statusAssigned([]string{"1.2.3.0"}),
},
want: &v1.Service{
Spec: v1.ServiceSpec{
Type: "NodePort",
ClusterIPs: []string{"1.2.3.4"},
},
},
},
{
desc: "request layer2 service",
in: &v1.Service{
Spec: v1.ServiceSpec{
Type: "LoadBalancer",
LoadBalancerIP: "3.4.5.6",
ClusterIPs: []string{"1.2.3.4"},
},
},
want: &v1.Service{
Spec: v1.ServiceSpec{
Type: "LoadBalancer",
LoadBalancerIP: "3.4.5.6",
ClusterIPs: []string{"1.2.3.4"},
},
Status: statusAssigned([]string{"3.4.5.6"}),
},
},
{
desc: "Layer2 service with local traffic policy",
in: &v1.Service{
Spec: v1.ServiceSpec{
Type: "LoadBalancer",
LoadBalancerIP: "3.4.5.6",
ExternalTrafficPolicy: "Local",
ClusterIPs: []string{"1.2.3.4"},
},
},
want: &v1.Service{
Spec: v1.ServiceSpec{
Type: "LoadBalancer",
LoadBalancerIP: "3.4.5.6",
ExternalTrafficPolicy: "Local",
ClusterIPs: []string{"1.2.3.4"},
},
Status: statusAssigned([]string{"3.4.5.6"}),
},
},
{
desc: "No ClusterIP",
in: &v1.Service{
Spec: v1.ServiceSpec{
Type: "LoadBalancer",
},
},
wantErr: false,
},
{
desc: "request IP from wrong ip-family (ipv4)",
in: &v1.Service{
Spec: v1.ServiceSpec{
Type: "LoadBalancer",
LoadBalancerIP: "1.2.3.1",
ClusterIPs: []string{"3000::1"},
},
},
wantErr: true,
},
{
desc: "request IP from wrong ip-family (ipv4) via custom annotation",
in: &v1.Service{
ObjectMeta: metav1.ObjectMeta{
Annotations: map[string]string{
annotationLoadBalancerIPs: "1.2.3.1",
},
},
Spec: v1.ServiceSpec{
ClusterIPs: []string{"3000::1"},
Type: "LoadBalancer",
},
},
wantErr: true,
},
{
desc: "request IP from wrong ip-family (ipv6)",
in: &v1.Service{
Spec: v1.ServiceSpec{
Type: "LoadBalancer",
LoadBalancerIP: "1000::",
ClusterIPs: []string{"1.2.3.4"},
},
},
wantErr: true,
},
{
desc: "request IP from wrong ip-family (ipv6) via custom annotation",
in: &v1.Service{
ObjectMeta: metav1.ObjectMeta{
Annotations: map[string]string{
annotationLoadBalancerIPs: "1000::",
},
},
Spec: v1.ServiceSpec{
ClusterIPs: []string{"1.2.3.4"},
Type: "LoadBalancer",
},
},
wantErr: true,
},
{
desc: "IP from wrong ip-family (ipv6) assigned",
in: &v1.Service{
Spec: v1.ServiceSpec{
Type: "LoadBalancer",
ClusterIPs: []string{"1.2.3.4"},
},
Status: statusAssigned([]string{"1000::"}),
},
want: &v1.Service{
Spec: v1.ServiceSpec{
Type: "LoadBalancer",
ClusterIPs: []string{"1.2.3.4"},
},
Status: statusAssigned([]string{"1.2.3.0"}),
},
},
{
desc: "IP from wrong ip-family (ipv4) assigned",
in: &v1.Service{
Spec: v1.ServiceSpec{
Type: "LoadBalancer",
ClusterIPs: []string{"3000::1"},
},
Status: statusAssigned([]string{"1.2.3.0"}),
},
want: &v1.Service{
Spec: v1.ServiceSpec{
Type: "LoadBalancer",
ClusterIPs: []string{"3000::1"},
},
Status: statusAssigned([]string{"1000::"}),
},
},
// dual-stack test cases
{
desc: "deleted balancer",
},
{
desc: "simple dual-stack LoadBalancer",
in: &v1.Service{
Spec: v1.ServiceSpec{
Type: "LoadBalancer",
ClusterIPs: []string{"1.2.3.4", "3000::1"},
},
},
want: &v1.Service{
Spec: v1.ServiceSpec{
ClusterIPs: []string{"1.2.3.4", "3000::1"},
Type: "LoadBalancer",
},
Status: statusAssigned([]string{"1.2.3.0", "1000::"}),
},
},
{
desc: "request IPs from specific pool",
in: &v1.Service{
ObjectMeta: metav1.ObjectMeta{
Annotations: map[string]string{
annotationAddressPool: "pool5",
},
},
Spec: v1.ServiceSpec{
Type: "LoadBalancer",
ClusterIPs: []string{"1.2.3.4", "3000::1"},
},
},
want: &v1.Service{
ObjectMeta: metav1.ObjectMeta{
Annotations: map[string]string{
annotationAddressPool: "pool5",
},
},
Spec: v1.ServiceSpec{
Type: "LoadBalancer",
ClusterIPs: []string{"1.2.3.4", "3000::1"},
},
Status: statusAssigned([]string{"1.2.3.0", "1000::"}),
},
},
{
desc: "request specific loadbalancer IP with dual-stack",
in: &v1.Service{
Spec: v1.ServiceSpec{
ClusterIPs: []string{"1.2.3.4", "3000::1"},
Type: "LoadBalancer",
LoadBalancerIP: "1.2.3.1",
},
},
wantErr: true,
},
{
desc: "request specific loadbalancer IPv4 address via custom annotation for dual-stack config",
in: &v1.Service{
ObjectMeta: metav1.ObjectMeta{
Annotations: map[string]string{
annotationLoadBalancerIPs: "1.2.3.1",
},
},
Spec: v1.ServiceSpec{
ClusterIPs: []string{"1.2.3.4", "3000::1"},
Type: "LoadBalancer",
},
},
wantErr: true,
},
{
desc: "request dual-stack loadbalancer IPs via custom annotation",
in: &v1.Service{
ObjectMeta: metav1.ObjectMeta{
Annotations: map[string]string{
annotationLoadBalancerIPs: "1.2.3.0,1000::",
},
},
Spec: v1.ServiceSpec{
ClusterIPs: []string{"1.2.3.4", "3000::1"},
Type: "LoadBalancer",
},
},
want: &v1.Service{
ObjectMeta: metav1.ObjectMeta{
Annotations: map[string]string{
annotationLoadBalancerIPs: "1.2.3.0,1000::",
},
},
Spec: v1.ServiceSpec{
Type: "LoadBalancer",
ClusterIPs: []string{"1.2.3.4", "3000::1"},
},
Status: statusAssigned([]string{"1.2.3.0", "1000::"}),
},
},
{
desc: "request dual-stack loadbalancer with invalid ingress",
in: &v1.Service{
Spec: v1.ServiceSpec{
Type: "LoadBalancer",
ClusterIPs: []string{"3000::1", "5.6.7.8"},
},
Status: v1.ServiceStatus{
LoadBalancer: v1.LoadBalancerStatus{
Ingress: []v1.LoadBalancerIngress{
{
Hostname: "foo.bar.local",
},
{
IP: "1000::",
},
},
},
},
},
want: &v1.Service{
Spec: v1.ServiceSpec{
Type: "LoadBalancer",
ClusterIPs: []string{"3000::1", "5.6.7.8"},
},
Status: statusAssigned([]string{"1.2.3.0", "1000::"}),
},
},
{
desc: "request dual-stack loadbalancer IPs via custom annotation in a single stack cluster",
in: &v1.Service{
ObjectMeta: metav1.ObjectMeta{
Annotations: map[string]string{
annotationLoadBalancerIPs: "1.2.3.0,1000::",
},
},
Spec: v1.ServiceSpec{
ClusterIP: "1.2.3.4",
Type: "LoadBalancer",
},
},
wantErr: true,
},
{
desc: "request IP for service from namespace specific ip pool",
in: &v1.Service{
ObjectMeta: metav1.ObjectMeta{
Namespace: "test-ns1",
},
Spec: v1.ServiceSpec{
Type: "LoadBalancer",
ClusterIPs: []string{"1.2.3.4"},
},
},
want: &v1.Service{
ObjectMeta: metav1.ObjectMeta{
Namespace: "test-ns1",
},
Spec: v1.ServiceSpec{
Type: "LoadBalancer",
ClusterIPs: []string{"1.2.3.4"},
},
Status: statusAssigned([]string{"7.8.9.0"}),
},
},
{
desc: "request IP for service from no priority namespace specific ip pool",
in: &v1.Service{
ObjectMeta: metav1.ObjectMeta{
Namespace: "test-ns2",
},
Spec: v1.ServiceSpec{
Type: "LoadBalancer",
ClusterIPs: []string{"1.2.3.4"},
},
},
want: &v1.Service{
ObjectMeta: metav1.ObjectMeta{
Namespace: "test-ns2",
},
Spec: v1.ServiceSpec{
Type: "LoadBalancer",
ClusterIPs: []string{"1.2.3.4"},
},
Status: statusAssigned([]string{"16.17.18.0"}),
},
},
{
desc: "request IP for service from service label specific ip pool",
in: &v1.Service{
ObjectMeta: metav1.ObjectMeta{
Labels: map[string]string{"team": "metallb"},
},
Spec: v1.ServiceSpec{
Type: "LoadBalancer",
ClusterIPs: []string{"1.2.3.4"},
},
},
want: &v1.Service{
ObjectMeta: metav1.ObjectMeta{
Labels: map[string]string{"team": "metallb"},
},
Spec: v1.ServiceSpec{
Type: "LoadBalancer",
ClusterIPs: []string{"1.2.3.4"},
},
Status: statusAssigned([]string{"19.20.21.0"}),
},
},
{
desc: "request IP for service from ip pool having both namespace and service label",
in: &v1.Service{
ObjectMeta: metav1.ObjectMeta{
Namespace: "test-ns1",
Labels: map[string]string{"team": "metallb"},
},
Spec: v1.ServiceSpec{
Type: "LoadBalancer",
ClusterIPs: []string{"1.2.3.4"},
},
},
want: &v1.Service{
ObjectMeta: metav1.ObjectMeta{
Namespace: "test-ns1",
Labels: map[string]string{"team": "metallb"},
},
Spec: v1.ServiceSpec{
Type: "LoadBalancer",
ClusterIPs: []string{"1.2.3.4"},
},
Status: statusAssigned([]string{"25.26.27.0"}),
},
},
{
desc: "simple LoadBalancer, ips already assigned but can't determine family",
in: &v1.Service{
Spec: v1.ServiceSpec{
Type: "LoadBalancer",
ClusterIPs: []string{"1.2.3.4"},
},
Status: statusAssigned([]string{"1.2.3.0", "1.2.3.1", "1.2.3.2"}),
},
want: &v1.Service{
Spec: v1.ServiceSpec{
ClusterIPs: []string{"1.2.3.4"},
Type: "LoadBalancer",
},
Status: statusAssigned([]string{"1.2.3.0"}),
},
wantErr: true,
},
}
for i := 0; i < 100; i++ {
for _, test := range tests {
t.Run(test.desc, func(t *testing.T) {
k.reset()
if c.SetBalancer(l, "test", test.in, epslices.EpsOrSlices{}) == controllers.SyncStateError {
t.Fatalf("%q: SetBalancer returned error", test.desc)
}
if test.wantErr != k.loggedWarning {
t.Errorf("%q: unexpected loggedWarning value, want %v, got %v", test.desc, test.wantErr, k.loggedWarning)
}
gotSvc := k.gotService(test.in)
switch {
case test.want == nil && gotSvc != nil:
t.Errorf("%q: unexpectedly mutated service (-in +out)\n%s", test.desc, diffService(test.in, gotSvc))
case test.want != nil && gotSvc == nil:
t.Errorf("%q: did not mutate service, wanted (-in +out)\n%s", test.desc, diffService(test.in, test.want))
case test.want != nil && gotSvc != nil:
if diff := diffService(test.want, gotSvc); diff != "" {
t.Errorf("%q: wrong service mutation (-want +got)\n%s", test.desc, diff)
}
}
if test.want != nil && len(test.want.Status.LoadBalancer.Ingress) > 0 {
ips := test.want.Status.LoadBalancer.Ingress
if len(ips) == 0 {
panic("bad wanted IP in loadbalancer status")
}
}
})
}
if t.Failed() {
// Don't run more test cases if we've already failed, to
// keep the output readable.
break
}
// Shuffle the input vector, and run again.
for x := range tests {
nx := rand.Intn(len(tests) - x)
tests[x], tests[nx] = tests[nx], tests[x]
}
t.Logf("Shuffled test cases")
}
}
func TestControllerConfig(t *testing.T) {
k := &testK8S{t: t}
c := &controller{
ips: allocator.New(),
client: k,
}
// Create service that would need an IP allocation
l := log.NewNopLogger()
svc := &v1.Service{
Spec: v1.ServiceSpec{
Type: "LoadBalancer",
ClusterIPs: []string{"1.2.3.4"},
},
}
if c.SetBalancer(l, "test", svc, epslices.EpsOrSlices{}) == controllers.SyncStateError {
t.Fatalf("SetBalancer failed")
}
gotSvc := k.gotService(svc)
if gotSvc != nil {
t.Errorf("SetBalancer with no configuration mutated service (-in +out)\n%s", diffService(svc, gotSvc))
}
if k.loggedWarning {
t.Error("SetBalancer with no configuration logged an error")
}
// Set an empty config. Balancer should still not do anything to
// our unallocated service, and return an error to force a
// retry after sync is complete.
if c.SetPools(l, &config.Pools{ByName: map[string]*config.Pool{}}) == controllers.SyncStateError {
t.Fatalf("SetPools with empty config failed")