ingress-nginx-helm/test/e2e/endpointslices/topology.go
Hervé d6bba85351
Rework Ginkgo usage (#9522)
* Rework Ginkgo usage

Currently Ginkgo is launched multiple times with different options to
accomodate various use-cases. In particular, some specs needs to be run
sequentially because non-namespaced objects are created that conflicts
with concurent Helm deployments.
However Ginkgo is able to handle such cases natively, in particular
specs that needs to be run sequentially are supported (Serial spec).

This commit marks the specs that needs to be run sequentially as Serial
specs and runs the whole test suite from a single Ginkgo invocation. As
a result, a single JUnit report is now generated.

Signed-off-by: Hervé Werner <dud225@hotmail.com>

* Fix controller error in test

Error getting ConfigMap "$NAMESPACE/tcp-services": no object matching key "$NAMESPACE/tcp-services" in local store

Signed-off-by: Hervé Werner <dud225@hotmail.com>

* Replace "go get" invocations by "go install"

Executing "go get" changes the go.mod & go.sum files which is not the
case of "go install".

Signed-off-by: Hervé Werner <dud225@hotmail.com>

* Always clean out the Helm deployment

Signed-off-by: Hervé Werner <dud225@hotmail.com>

* Add E2E test to verify that changes to one or more configmap trigger an update

Signed-off-by: Hervé Werner <dud225@hotmail.com>

---------

Signed-off-by: Hervé Werner <dud225@hotmail.com>
2023-02-16 06:15:39 -08:00

95 lines
2.9 KiB
Go

/*
Copyright 2022 The Kubernetes Authors.
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
*/
package endpointslices
import (
"context"
"encoding/json"
"fmt"
"net/http"
"strings"
metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
"github.com/onsi/ginkgo/v2"
"github.com/stretchr/testify/assert"
"k8s.io/ingress-nginx/internal/nginx"
"k8s.io/ingress-nginx/test/e2e/framework"
)
var _ = framework.IngressNginxDescribeSerial("[TopologyHints] topology aware routing", func() {
f := framework.NewDefaultFramework("topology")
host := "topology-svc.foo.com"
ginkgo.BeforeEach(func() {
f.NewEchoDeployment(framework.WithDeploymentReplicas(2), framework.WithSvcTopologyAnnotations())
})
ginkgo.It("should return 200 when service has topology hints", func() {
annotations := make(map[string]string)
ing := framework.NewSingleIngress(host, "/", host, f.Namespace, framework.EchoService, 80, annotations)
f.EnsureIngress(ing)
f.WaitForNginxServer(host, func(server string) bool {
return strings.Contains(server, fmt.Sprintf("server_name %s", host))
})
ginkgo.By("checking if the service is reached")
f.HTTPTestClient().
GET("/").
WithHeader("Host", host).
Expect().
Status(http.StatusOK)
slices, err := f.KubeClientSet.DiscoveryV1().EndpointSlices(f.Namespace).List(context.TODO(), metav1.ListOptions{
LabelSelector: "kubernetes.io/service-name=echo",
Limit: 1,
})
assert.Nil(ginkgo.GinkgoT(), err)
// check if we have hints, really depends on k8s endpoint slice controller
gotHints := true
for _, ep := range slices.Items[0].Endpoints {
if ep.Hints == nil || len(ep.Hints.ForZones) == 0 {
gotHints = false
break
}
}
curlCmd := fmt.Sprintf("curl --fail --silent http://localhost:%v/configuration/backends", nginx.StatusPort)
status, err := f.ExecIngressPod(curlCmd)
assert.Nil(ginkgo.GinkgoT(), err)
var backends []map[string]interface{}
json.Unmarshal([]byte(status), &backends)
gotBackends := 0
for _, bck := range backends {
if strings.Contains(bck["name"].(string), "topology") {
gotBackends = len(bck["endpoints"].([]interface{}))
}
}
if gotHints {
//we have 2 replics, if there is just one backend it means that we are routing according slices hints to same zone as controller is
assert.Equal(ginkgo.GinkgoT(), 1, gotBackends)
} else {
// two replicas should have two endpoints without topology hints
assert.Equal(ginkgo.GinkgoT(), 2, gotBackends)
}
})
})