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Merge pull request #90840 from rosti/kubeadm-move-kubelet-featuregates

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kubeadm: Move IPv6DualStack feature gate to component config
This commit is contained in:
Kubernetes Prow Robot 2020-05-08 05:24:09 -07:00 committed by GitHub
commit 2e4bab8065
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4 changed files with 48 additions and 12 deletions
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6
cmd/kubeadm/app/componentconfigs/kubelet.go
View File

@ -105,6 +105,12 @@ func (kc *kubeletConfig) Default(cfg *kubeadmapi.ClusterConfiguration, _ *kubead
kc.config.FeatureGates = map[string]bool{}
}
// TODO: The following code should be removed after dual-stack is GA.
// Note: The user still retains the ability to explicitly set feature-gates and that value will overwrite this base value.
if enabled, present := cfg.FeatureGates[features.IPv6DualStack]; present {
kc.config.FeatureGates[features.IPv6DualStack] = enabled
}
if kc.config.StaticPodPath == "" {
kc.config.StaticPodPath = kubeadmapiv1beta2.DefaultManifestsDir
} else if kc.config.StaticPodPath != kubeadmapiv1beta2.DefaultManifestsDir {

44
cmd/kubeadm/app/componentconfigs/kubelet_test.go
View File

@ -229,7 +229,45 @@ func TestKubeletDefault(t *testing.T) {
},
},
{
name: "Service subnet, dual stack defaulting works",
name: "Service subnet, explicitly disabled dual stack defaulting works",
clusterCfg: kubeadmapi.ClusterConfiguration{
FeatureGates: map[string]bool{
features.IPv6DualStack: false,
},
Networking: kubeadmapi.Networking{
ServiceSubnet: "192.168.0.0/16",
},
},
expected: kubeletConfig{
config: kubeletconfig.KubeletConfiguration{
FeatureGates: map[string]bool{
features.IPv6DualStack: false,
},
StaticPodPath: kubeadmapiv1beta2.DefaultManifestsDir,
ClusterDNS: []string{"192.168.0.10"},
Authentication: kubeletconfig.KubeletAuthentication{
X509: kubeletconfig.KubeletX509Authentication{
ClientCAFile: constants.CACertName,
},
Anonymous: kubeletconfig.KubeletAnonymousAuthentication{
Enabled: utilpointer.BoolPtr(kubeletAuthenticationAnonymousEnabled),
},
Webhook: kubeletconfig.KubeletWebhookAuthentication{
Enabled: utilpointer.BoolPtr(kubeletAuthenticationWebhookEnabled),
},
},
Authorization: kubeletconfig.KubeletAuthorization{
Mode: kubeletconfig.KubeletAuthorizationModeWebhook,
},
HealthzBindAddress: kubeletHealthzBindAddress,
HealthzPort: utilpointer.Int32Ptr(constants.KubeletHealthzPort),
RotateCertificates: kubeletRotateCertificates,
ResolverConfig: resolverConfig,
},
},
},
{
name: "Service subnet, enabled dual stack defaulting works",
clusterCfg: kubeadmapi.ClusterConfiguration{
FeatureGates: map[string]bool{
features.IPv6DualStack: true,
@ -240,7 +278,9 @@ func TestKubeletDefault(t *testing.T) {
},
expected: kubeletConfig{
config: kubeletconfig.KubeletConfiguration{
FeatureGates: map[string]bool{},
FeatureGates: map[string]bool{
features.IPv6DualStack: true,
},
StaticPodPath: kubeadmapiv1beta2.DefaultManifestsDir,
ClusterDNS: []string{"192.168.0.10"},
Authentication: kubeletconfig.KubeletAuthentication{

1
cmd/kubeadm/app/phases/kubelet/BUILD
View File

@ -14,7 +14,6 @@ go_library(
"//cmd/kubeadm/app/apis/kubeadm:go_default_library",
"//cmd/kubeadm/app/componentconfigs:go_default_library",
"//cmd/kubeadm/app/constants:go_default_library",
"//cmd/kubeadm/app/features:go_default_library",
"//cmd/kubeadm/app/images:go_default_library",
"//cmd/kubeadm/app/util:go_default_library",
"//cmd/kubeadm/app/util/apiclient:go_default_library",

9
cmd/kubeadm/app/phases/kubelet/flags.go
View File

@ -28,14 +28,12 @@ import (
kubeadmapi "k8s.io/kubernetes/cmd/kubeadm/app/apis/kubeadm"
"k8s.io/kubernetes/cmd/kubeadm/app/constants"
"k8s.io/kubernetes/cmd/kubeadm/app/features"
"k8s.io/kubernetes/cmd/kubeadm/app/images"
kubeadmutil "k8s.io/kubernetes/cmd/kubeadm/app/util"
)
type kubeletFlagsOpts struct {
nodeRegOpts *kubeadmapi.NodeRegistrationOptions
featureGates map[string]bool
pauseImage string
registerTaintsUsingFlags bool
}
@ -63,7 +61,6 @@ func GetNodeNameAndHostname(cfg *kubeadmapi.NodeRegistrationOptions) (string, st
func WriteKubeletDynamicEnvFile(cfg *kubeadmapi.ClusterConfiguration, nodeReg *kubeadmapi.NodeRegistrationOptions, registerTaintsUsingFlags bool, kubeletDir string) error {
flagOpts := kubeletFlagsOpts{
nodeRegOpts: nodeReg,
featureGates: cfg.FeatureGates,
pauseImage: images.GetPauseImage(cfg),
registerTaintsUsingFlags: registerTaintsUsingFlags,
}
@ -109,12 +106,6 @@ func buildKubeletArgMapCommon(opts kubeletFlagsOpts) map[string]string {
kubeletFlags["hostname-override"] = nodeName
}
// TODO: The following code should be removed after dual-stack is GA.
// Note: The user still retains the ability to explicitly set feature-gates and that value will overwrite this base value.
if enabled, present := opts.featureGates[features.IPv6DualStack]; present {
kubeletFlags["feature-gates"] = fmt.Sprintf("%s=%t", features.IPv6DualStack, enabled)
}
return kubeletFlags
}