Skip to content

Commit

Permalink
Use identifying labels for lookup of EPS on service EPS update
Browse files Browse the repository at this point in the history
...instead of all labels otherwise, on update to the service labels,
the existing EPS is not found resulting in a new one created.

Related to #1646

Signed-off-by: Tom Pantelis <[email protected]>
  • Loading branch information
tpantelis authored and skitt committed Oct 7, 2024
1 parent c93ed11 commit 9d3c39e
Show file tree
Hide file tree
Showing 4 changed files with 82 additions and 31 deletions.
4 changes: 2 additions & 2 deletions go.mod
Original file line number Diff line number Diff line change
Expand Up @@ -7,8 +7,8 @@ require (
github.com/onsi/ginkgo/v2 v2.20.2
github.com/onsi/gomega v1.34.2
github.com/pkg/errors v0.9.1
github.com/prometheus/client_golang v1.20.2
github.com/submariner-io/admiral v0.19.0-m3
github.com/prometheus/client_golang v1.20.4
github.com/submariner-io/admiral v0.19.0-m3.0.20241007113622-538061402b91
github.com/submariner-io/shipyard v0.19.0-m3
k8s.io/api v0.31.0
k8s.io/apimachinery v0.31.0
Expand Down
8 changes: 4 additions & 4 deletions go.sum
Original file line number Diff line number Diff line change
Expand Up @@ -328,8 +328,8 @@ github.com/pquerna/cachecontrol v0.0.0-20171018203845-0dec1b30a021/go.mod h1:prY
github.com/prometheus/client_golang v0.9.1/go.mod h1:7SWBe2y4D6OKWSNQJUaRYU/AaXPKyh/dDVn+NZz0KFw=
github.com/prometheus/client_golang v0.9.3/go.mod h1:/TN21ttK/J9q6uSwhBd54HahCDft0ttaMvbicHlPoso=
github.com/prometheus/client_golang v1.0.0/go.mod h1:db9x61etRT2tGnBNRi70OPL5FsnadC4Ky3P0J6CfImo=
github.com/prometheus/client_golang v1.20.2 h1:5ctymQzZlyOON1666svgwn3s6IKWgfbjsejTMiXIyjg=
github.com/prometheus/client_golang v1.20.2/go.mod h1:PIEt8X02hGcP8JWbeHyeZ53Y/jReSnHgO035n//V5WE=
github.com/prometheus/client_golang v1.20.4 h1:Tgh3Yr67PaOv/uTqloMsCEdeuFTatm5zIq5+qNN23vI=
github.com/prometheus/client_golang v1.20.4/go.mod h1:PIEt8X02hGcP8JWbeHyeZ53Y/jReSnHgO035n//V5WE=
github.com/prometheus/client_model v0.0.0-20180712105110-5c3871d89910/go.mod h1:MbSGuTsp3dbXC40dX6PRTWyKYBIrTGTE9sqQNg2J8bo=
github.com/prometheus/client_model v0.0.0-20190129233127-fd36f4220a90/go.mod h1:xMI15A0UPsDsEKsMN9yxemIoYk6Tm2C1GtYGdfGttqA=
github.com/prometheus/client_model v0.0.0-20190812154241-14fe0d1b01d4/go.mod h1:xMI15A0UPsDsEKsMN9yxemIoYk6Tm2C1GtYGdfGttqA=
Expand Down Expand Up @@ -389,8 +389,8 @@ github.com/stretchr/testify v1.8.0/go.mod h1:yNjHg4UonilssWZ8iaSj1OCr/vHnekPRkoO
github.com/stretchr/testify v1.8.1/go.mod h1:w2LPCIKwWwSfY2zedu0+kehJoqGctiVI29o6fzry7u4=
github.com/stretchr/testify v1.9.0 h1:HtqpIVDClZ4nwg75+f6Lvsy/wHu+3BoSGCbBAcpTsTg=
github.com/stretchr/testify v1.9.0/go.mod h1:r2ic/lqez/lEtzL7wO/rwa5dbSLXVDPFyf8C91i36aY=
github.com/submariner-io/admiral v0.19.0-m3 h1:LTkYxCvB8S1210P2FZtCb6dzjaPpIgBrRQxZkH/snDo=
github.com/submariner-io/admiral v0.19.0-m3/go.mod h1:xRpP1rDOblEdPHr0qrC+plcTNfShYJAOH2fexqOmI1A=
github.com/submariner-io/admiral v0.19.0-m3.0.20241007113622-538061402b91 h1:DEYBbJPyE9xrokFDNoBe5heFPxsBiM4fi+xEnynUkg0=
github.com/submariner-io/admiral v0.19.0-m3.0.20241007113622-538061402b91/go.mod h1:Mm9PhtbIvai0Tl+8yzrItzoTJoWpvYKT2t6cIXLNvsU=
github.com/submariner-io/shipyard v0.19.0-m3 h1:NliwAktRPF4OsLj1TDgpaOJD/bmmZW/FH9+mJmWgxbk=
github.com/submariner-io/shipyard v0.19.0-m3/go.mod h1:BY1ceSnPz1/hN5F9uljcSzy5n5qgAOENsIvZpJ+XPOU=
github.com/tidwall/pretty v1.0.0/go.mod h1:XNkn88O1ChpSDQmQeStsy+sBenx6DDtFZJxhVysOjyk=
Expand Down
35 changes: 35 additions & 0 deletions pkg/agent/controller/clusterip_service_test.go
Original file line number Diff line number Diff line change
Expand Up @@ -198,6 +198,41 @@ func testClusterIPServiceInOneCluster() {
})
})

When("the labels for an exported service are updated", func() {
JustBeforeEach(func() {
t.cluster1.createService()
t.cluster1.createServiceExport()
t.awaitNonHeadlessServiceExported(&t.cluster1)
})

It("should update the existing EndpointSlice labels", func() {
existingEPS := findEndpointSlices(t.cluster1.localEndpointSliceClient, t.cluster1.service.Namespace,
t.cluster1.service.Name, t.cluster1.clusterID)[0]

By("Updating service labels")

newLabelName := "new-label"
newLabelValue := "new-value"

t.cluster1.service.Labels[newLabelName] = newLabelValue
t.cluster1.serviceEndpointSlices[0].Labels[newLabelName] = newLabelValue

t.cluster1.updateServiceEndpointSlices()

Eventually(func() map[string]string {
eps, err := t.cluster1.localEndpointSliceClient.Get(context.TODO(), existingEPS.Name, metav1.GetOptions{})
Expect(err).To(Succeed())

return eps.GetLabels()
}).Should(HaveKeyWithValue(newLabelName, newLabelValue))

newSlices := findEndpointSlices(t.cluster1.localEndpointSliceClient, t.cluster1.service.Namespace,
t.cluster1.service.Name, t.cluster1.clusterID)
Expect(newSlices).To(HaveLen(1))
Expect(newSlices[0].Name).To(Equal(existingEPS.Name))
})
})

When("the session affinity is configured for an exported service", func() {
BeforeEach(func() {
t.cluster1.service.Spec.SessionAffinity = corev1.ServiceAffinityClientIP
Expand Down
66 changes: 41 additions & 25 deletions pkg/agent/controller/service_endpoint_slices.go
Original file line number Diff line number Diff line change
Expand Up @@ -28,7 +28,9 @@ import (
"github.com/pkg/errors"
"github.com/submariner-io/admiral/pkg/federate"
"github.com/submariner-io/admiral/pkg/log"
"github.com/submariner-io/admiral/pkg/resource"
"github.com/submariner-io/admiral/pkg/syncer"
"github.com/submariner-io/admiral/pkg/util"
"github.com/submariner-io/lighthouse/pkg/constants"
discovery "k8s.io/api/discovery/v1"
apierrors "k8s.io/apimachinery/pkg/api/errors"
Expand Down Expand Up @@ -176,29 +178,7 @@ func (c *ServiceEndpointSliceController) onServiceEndpointSlice(obj runtime.Obje
return nil, false
}

if op == syncer.Delete {
list, err := c.localClient.List(context.TODO(), metav1.ListOptions{
LabelSelector: k8slabels.SelectorFromSet(returnEPS.Labels).String(),
})
if err != nil {
logger.Error(err, "Error listing EndpointSlice resources for delete")
return nil, true
}

if len(list.Items) == 0 {
logger.V(log.DEBUG).Infof("Existing EndpointSlice not found with labels: %#v", returnEPS.Labels)
return nil, false
}

returnEPS.Name = list.Items[0].GetName()
}

name := returnEPS.Name
if name == "" {
name = returnEPS.GenerateName
}

logger.V(logLevel).Infof("Returning EndpointSlice %s/%s: %s", serviceEPS.Namespace, name,
logger.V(logLevel).Infof("Returning EndpointSlice %s/%s: %s", serviceEPS.Namespace, returnEPS.GenerateName,
endpointSliceStringer{returnEPS})

return returnEPS, false
Expand Down Expand Up @@ -346,12 +326,48 @@ func (c *ServiceEndpointSliceController) isHeadless() bool {
}

func (c *ServiceEndpointSliceController) Distribute(ctx context.Context, obj runtime.Object) error {
return c.federator.Distribute(ctx, obj) //nolint:wrapcheck // No need to wrap here
toDistribute := resource.MustToUnstructured(obj)
labels := toDistribute.GetLabels()

identifyingLabels := map[string]string{}
if c.isHeadless() {
identifyingLabels[constants.LabelSourceName] = labels[constants.LabelSourceName]
} else {
identifyingLabels[mcsv1a1.LabelServiceName] = labels[mcsv1a1.LabelServiceName]
identifyingLabels[constants.LabelSourceNamespace] = labels[constants.LabelSourceNamespace]
identifyingLabels[constants.MCSLabelSourceCluster] = labels[constants.MCSLabelSourceCluster]
}

_, _, err := util.CreateOrUpdateWithOptions[*unstructured.Unstructured](ctx, util.CreateOrUpdateOptions[*unstructured.Unstructured]{
Client: resource.ForDynamic(c.localClient),
Obj: toDistribute,
MutateOnUpdate: func(obj *unstructured.Unstructured) (*unstructured.Unstructured, error) {
return util.CopyImmutableMetadata(obj, toDistribute), nil
},
IdentifyingLabels: identifyingLabels,
})

return err
}

func (c *ServiceEndpointSliceController) Delete(ctx context.Context, obj runtime.Object) error {
if c.isHeadless() {
return c.federator.Delete(ctx, obj) //nolint:wrapcheck // No need to wrap here
list, err := c.localClient.List(ctx, metav1.ListOptions{
LabelSelector: k8slabels.Set(map[string]string{
constants.LabelSourceName: resource.MustToMeta(obj).GetLabels()[constants.LabelSourceName],
}).String(),
})
if err != nil {
return errors.Wrap(err, "error listing EndpointSlice resources for delete")
}

if len(list.Items) == 0 {
logger.V(log.DEBUG).Infof("Existing EndpointSlice not found for service EPS %q",
resource.MustToMeta(obj).GetLabels()[constants.LabelSourceName])
return nil
}

return c.localClient.Delete(ctx, list.Items[0].GetName(), metav1.DeleteOptions{}) //nolint:wrapcheck // No need to wrap here
}

// For a non-headless service, we never delete the single exported EPS - we update its endpoint condition based on
Expand Down

0 comments on commit 9d3c39e

Please sign in to comment.