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feat: update more than one LoadBalancer ip

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Co-authored-by: kevinpollet <pollet.kevin@gmail.com>
This commit is contained in:
Eli Mallon 2020-09-15 04:48:32 -07:00 committed by GitHub
parent 76f42a3013
commit 498e8545b6
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GPG key ID: 4AEE18F83AFDEB23
4 changed files with 119 additions and 23 deletions
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58
pkg/provider/kubernetes/ingress/client.go
View file

@ -54,7 +54,7 @@ type Client interface {
GetService(namespace, name string) (*corev1.Service, bool, error)
GetSecret(namespace, name string) (*corev1.Secret, bool, error)
GetEndpoints(namespace, name string) (*corev1.Endpoints, bool, error)
UpdateIngressStatus(ing *networkingv1beta1.Ingress, ip, hostname string) error
UpdateIngressStatus(ing *networkingv1beta1.Ingress, ingStatus []corev1.LoadBalancerIngress) error
GetServerVersion() (*version.Version, error)
}
@ -230,13 +230,13 @@ func extensionsToNetworking(ing proto.Marshaler) (*networkingv1beta1.Ingress, er
}
// UpdateIngressStatus updates an Ingress with a provided status.
func (c *clientWrapper) UpdateIngressStatus(src *networkingv1beta1.Ingress, ip, hostname string) error {
func (c *clientWrapper) UpdateIngressStatus(src *networkingv1beta1.Ingress, ingStatus []corev1.LoadBalancerIngress) error {
if !c.isWatchedNamespace(src.Namespace) {
return fmt.Errorf("failed to get ingress %s/%s: namespace is not within watched namespaces", src.Namespace, src.Name)
}
if src.GetObjectKind().GroupVersionKind().Group != "networking.k8s.io" {
return c.updateIngressStatusOld(src, ip, hostname)
return c.updateIngressStatusOld(src, ingStatus)
}
ing, err := c.factories[c.lookupNamespace(src.Namespace)].Networking().V1beta1().Ingresses().Lister().Ingresses(src.Namespace).Get(src.Name)
@ -244,16 +244,15 @@ func (c *clientWrapper) UpdateIngressStatus(src *networkingv1beta1.Ingress, ip,
return fmt.Errorf("failed to get ingress %s/%s: %w", src.Namespace, src.Name, err)
}
if len(ing.Status.LoadBalancer.Ingress) > 0 {
if ing.Status.LoadBalancer.Ingress[0].Hostname == hostname && ing.Status.LoadBalancer.Ingress[0].IP == ip {
// If status is already set, skip update
log.Debugf("Skipping status update on ingress %s/%s", ing.Namespace, ing.Name)
return nil
}
logger := log.WithoutContext().WithField("namespace", ing.Namespace).WithField("ingress", ing.Name)
if isLoadBalancerIngressEquals(ing.Status.LoadBalancer.Ingress, ingStatus) {
logger.Debug("Skipping ingress status update")
return nil
}
ingCopy := ing.DeepCopy()
ingCopy.Status = networkingv1beta1.IngressStatus{LoadBalancer: corev1.LoadBalancerStatus{Ingress: []corev1.LoadBalancerIngress{{IP: ip, Hostname: hostname}}}}
ingCopy.Status = networkingv1beta1.IngressStatus{LoadBalancer: corev1.LoadBalancerStatus{Ingress: ingStatus}}
ctx, cancel := context.WithTimeout(context.Background(), defaultTimeout)
defer cancel()
@ -263,26 +262,25 @@ func (c *clientWrapper) UpdateIngressStatus(src *networkingv1beta1.Ingress, ip,
return fmt.Errorf("failed to update ingress status %s/%s: %w", src.Namespace, src.Name, err)
}
log.Infof("Updated status on ingress %s/%s", src.Namespace, src.Name)
logger.Info("Updated ingress status")
return nil
}
func (c *clientWrapper) updateIngressStatusOld(src *networkingv1beta1.Ingress, ip, hostname string) error {
func (c *clientWrapper) updateIngressStatusOld(src *networkingv1beta1.Ingress, ingStatus []corev1.LoadBalancerIngress) error {
ing, err := c.factories[c.lookupNamespace(src.Namespace)].Extensions().V1beta1().Ingresses().Lister().Ingresses(src.Namespace).Get(src.Name)
if err != nil {
return fmt.Errorf("failed to get ingress %s/%s: %w", src.Namespace, src.Name, err)
}
if len(ing.Status.LoadBalancer.Ingress) > 0 {
if ing.Status.LoadBalancer.Ingress[0].Hostname == hostname && ing.Status.LoadBalancer.Ingress[0].IP == ip {
// If status is already set, skip update
log.Debugf("Skipping status update on ingress %s/%s", ing.Namespace, ing.Name)
return nil
}
logger := log.WithoutContext().WithField("namespace", ing.Namespace).WithField("ingress", ing.Name)
if isLoadBalancerIngressEquals(ing.Status.LoadBalancer.Ingress, ingStatus) {
logger.Debug("Skipping ingress status update")
return nil
}
ingCopy := ing.DeepCopy()
ingCopy.Status = extensionsv1beta1.IngressStatus{LoadBalancer: corev1.LoadBalancerStatus{Ingress: []corev1.LoadBalancerIngress{{IP: ip, Hostname: hostname}}}}
ingCopy.Status = extensionsv1beta1.IngressStatus{LoadBalancer: corev1.LoadBalancerStatus{Ingress: ingStatus}}
ctx, cancel := context.WithTimeout(context.Background(), defaultTimeout)
defer cancel()
@ -292,10 +290,30 @@ func (c *clientWrapper) updateIngressStatusOld(src *networkingv1beta1.Ingress, i
return fmt.Errorf("failed to update ingress status %s/%s: %w", src.Namespace, src.Name, err)
}
log.Infof("Updated status on ingress %s/%s", src.Namespace, src.Name)
logger.Info("Updated ingress status")
return nil
}
// isLoadBalancerIngressEquals returns true if the given slices are equal, false otherwise.
func isLoadBalancerIngressEquals(aSlice []corev1.LoadBalancerIngress, bSlice []corev1.LoadBalancerIngress) bool {
if len(aSlice) != len(bSlice) {
return false
}
aMap := make(map[string]struct{})
for _, aIngress := range aSlice {
aMap[aIngress.Hostname+aIngress.IP] = struct{}{}
}
for _, bIngress := range bSlice {
if _, exists := aMap[bIngress.Hostname+bIngress.IP]; !exists {
return false
}
}
return true
}
// GetService returns the named service from the given namespace.
func (c *clientWrapper) GetService(namespace, name string) (*corev1.Service, bool, error) {
if !c.isWatchedNamespace(namespace) {

2
pkg/provider/kubernetes/ingress/client_mock_test.go
View file

@ -125,6 +125,6 @@ func (c clientMock) WatchAll(namespaces []string, stopCh <-chan struct{}) (<-cha
return c.watchChan, nil
}
func (c clientMock) UpdateIngressStatus(_ *networkingv1beta1.Ingress, _, _ string) error {
func (c clientMock) UpdateIngressStatus(_ *networkingv1beta1.Ingress, _ []corev1.LoadBalancerIngress) error {
return c.apiIngressStatusError
}

78
pkg/provider/kubernetes/ingress/client_test.go
View file

@ -5,6 +5,7 @@ import (
"testing"
"github.com/stretchr/testify/assert"
corev1 "k8s.io/api/core/v1"
kubeerror "k8s.io/apimachinery/pkg/api/errors"
"k8s.io/apimachinery/pkg/runtime/schema"
)
@ -47,3 +48,80 @@ func TestTranslateNotFoundError(t *testing.T) {
})
}
}
func TestIsLoadBalancerIngressEquals(t *testing.T) {
testCases := []struct {
desc string
aSlice []corev1.LoadBalancerIngress
bSlice []corev1.LoadBalancerIngress
expectedEqual bool
}{
{
desc: "both slices are empty",
expectedEqual: true,
},
{
desc: "not the same length",
bSlice: []corev1.LoadBalancerIngress{
{IP: "192.168.1.1", Hostname: "traefik"},
},
expectedEqual: false,
},
{
desc: "same ordered content",
aSlice: []corev1.LoadBalancerIngress{
{IP: "192.168.1.1", Hostname: "traefik"},
},
bSlice: []corev1.LoadBalancerIngress{
{IP: "192.168.1.1", Hostname: "traefik"},
},
expectedEqual: true,
},
{
desc: "same unordered content",
aSlice: []corev1.LoadBalancerIngress{
{IP: "192.168.1.1", Hostname: "traefik"},
{IP: "192.168.1.2", Hostname: "traefik2"},
},
bSlice: []corev1.LoadBalancerIngress{
{IP: "192.168.1.2", Hostname: "traefik2"},
{IP: "192.168.1.1", Hostname: "traefik"},
},
expectedEqual: true,
},
{
desc: "different ordered content",
aSlice: []corev1.LoadBalancerIngress{
{IP: "192.168.1.1", Hostname: "traefik"},
{IP: "192.168.1.2", Hostname: "traefik2"},
},
bSlice: []corev1.LoadBalancerIngress{
{IP: "192.168.1.1", Hostname: "traefik"},
{IP: "192.168.1.2", Hostname: "traefik"},
},
expectedEqual: false,
},
{
desc: "different unordered content",
aSlice: []corev1.LoadBalancerIngress{
{IP: "192.168.1.1", Hostname: "traefik"},
{IP: "192.168.1.2", Hostname: "traefik2"},
},
bSlice: []corev1.LoadBalancerIngress{
{IP: "192.168.1.2", Hostname: "traefik3"},
{IP: "192.168.1.1", Hostname: "traefik"},
},
expectedEqual: false,
},
}
for _, test := range testCases {
test := test
t.Run(test.desc, func(t *testing.T) {
t.Parallel()
gotEqual := isLoadBalancerIngressEquals(test.aSlice, test.bSlice)
assert.Equal(t, test.expectedEqual, gotEqual)
})
}
}

4
pkg/provider/kubernetes/ingress/kubernetes.go
View file

@ -301,7 +301,7 @@ func (p *Provider) updateIngressStatus(ing *networkingv1beta1.Ingress, k8sClient
return errors.New("publishedService or ip or hostname must be defined")
}
return k8sClient.UpdateIngressStatus(ing, p.IngressEndpoint.IP, p.IngressEndpoint.Hostname)
return k8sClient.UpdateIngressStatus(ing, []corev1.LoadBalancerIngress{{IP: p.IngressEndpoint.IP, Hostname: p.IngressEndpoint.Hostname}})
}
serviceInfo := strings.Split(p.IngressEndpoint.PublishedService, "/")
@ -326,7 +326,7 @@ func (p *Provider) updateIngressStatus(ing *networkingv1beta1.Ingress, k8sClient
return fmt.Errorf("missing service: %s", p.IngressEndpoint.PublishedService)
}
return k8sClient.UpdateIngressStatus(ing, service.Status.LoadBalancer.Ingress[0].IP, service.Status.LoadBalancer.Ingress[0].Hostname)
return k8sClient.UpdateIngressStatus(ing, service.Status.LoadBalancer.Ingress)
}
func (p *Provider) shouldProcessIngress(providerIngressClass string, ingress *networkingv1beta1.Ingress, ingressClass *networkingv1beta1.IngressClass) bool {