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test/e2e_kubeadm/dns_addon_test.go: drop kube-dns tests

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kube-dns as an alternative DNS addon to CoreDNS hasn't been supported
since 1.22 when kubeadm's v1beta3 API was added.

Remove the related tests from the e2e_kubeadm test framework.
This commit is contained in:
Lubomir I. Ivanov 2023-11-03 12:04:44 +02:00
parent c3eebb233d
commit b565fbeac0
1 changed files with 1 additions and 72 deletions
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73
test/e2e_kubeadm/dns_addon_test.go
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@ -20,7 +20,6 @@ import (
"context"
"k8s.io/kubernetes/test/e2e/framework"
e2eskipper "k8s.io/kubernetes/test/e2e/framework/skipper"
admissionapi "k8s.io/pod-security-admission/api"
"github.com/onsi/ginkgo/v2"
@ -36,17 +35,10 @@ const (
coreDNSRoleName = "system:coredns"
coreDNSRoleBindingName = coreDNSRoleName
coreDNSDeploymentName = "coredns"
kubeDNSServiceAccountName = "kube-dns"
kubeDNSDeploymentName = "kube-dns"
)
var (
dnsType = ""
)
// Define container for all the test specification aimed at verifying
// that kubeadm configures the dns as expected
// that kubeadm configures the DNS addon as expected
var _ = Describe("DNS addon", func() {
// Get an instance of the k8s test framework
@ -57,66 +49,13 @@ var _ = Describe("DNS addon", func() {
// so we are disabling the creation of a namespace in order to get a faster execution
f.SkipNamespaceCreation = true
// kubeadm supports two type of DNS addon, and so
// it is necessary to get it from the kubeadm-config ConfigMap before testing
ginkgo.BeforeEach(func() {
// if the dnsType name is already known exit
if dnsType != "" {
return
}
// gets the ClusterConfiguration from the kubeadm kubeadm-config ConfigMap as a untyped map
m := getClusterConfiguration(f.ClientSet)
// Extract the dnsType
dnsType = "CoreDNS"
if _, ok := m["dns"]; ok {
d := m["dns"].(map[interface{}]interface{})
if t, ok := d["type"]; ok {
dnsType = t.(string)
}
}
})
ginkgo.Context("kube-dns", func() {
ginkgo.Context("kube-dns ServiceAccount", func() {
ginkgo.It("should exist", func(ctx context.Context) {
if dnsType != "kube-dns" {
e2eskipper.Skipf("Skipping because DNS type is %s", dnsType)
}
ExpectServiceAccount(f.ClientSet, kubeSystemNamespace, kubeDNSServiceAccountName)
})
})
ginkgo.Context("kube-dns Deployment", func() {
ginkgo.It("should exist and be properly configured", func(ctx context.Context) {
if dnsType != "kube-dns" {
e2eskipper.Skipf("Skipping because DNS type is %s", dnsType)
}
d := GetDeployment(f.ClientSet, kubeSystemNamespace, kubeDNSDeploymentName)
gomega.Expect(d.Spec.Template.Spec.ServiceAccountName).To(gomega.Equal(kubeDNSServiceAccountName))
})
})
})
ginkgo.Context("CoreDNS", func() {
ginkgo.Context("CoreDNS ServiceAccount", func() {
ginkgo.It("should exist", func(ctx context.Context) {
if dnsType != "CoreDNS" {
e2eskipper.Skipf("Skipping because DNS type is %s", dnsType)
}
ExpectServiceAccount(f.ClientSet, kubeSystemNamespace, coreDNSServiceAccountName)
})
ginkgo.It("should have related ClusterRole and ClusterRoleBinding", func(ctx context.Context) {
if dnsType != "CoreDNS" {
e2eskipper.Skipf("Skipping because DNS type is %s", dnsType)
}
ExpectClusterRole(f.ClientSet, coreDNSRoleName)
ExpectClusterRoleBinding(f.ClientSet, coreDNSRoleBindingName)
})
@ -124,24 +63,14 @@ var _ = Describe("DNS addon", func() {
ginkgo.Context("CoreDNS ConfigMap", func() {
ginkgo.It("should exist and be properly configured", func(ctx context.Context) {
if dnsType != "CoreDNS" {
e2eskipper.Skipf("Skipping because DNS type is %s", dnsType)
}
cm := GetConfigMap(f.ClientSet, kubeSystemNamespace, coreDNSConfigMap)
gomega.Expect(cm.Data).To(gomega.HaveKey(coreDNSConfigMapKey))
})
})
ginkgo.Context("CoreDNS Deployment", func() {
ginkgo.It("should exist and be properly configured", func(ctx context.Context) {
if dnsType != "CoreDNS" {
e2eskipper.Skipf("Skipping because DNS type is %s", dnsType)
}
d := GetDeployment(f.ClientSet, kubeSystemNamespace, coreDNSDeploymentName)
gomega.Expect(d.Spec.Template.Spec.ServiceAccountName).To(gomega.Equal(coreDNSServiceAccountName))
})
})