v1beta2

Documentation

Index

• Variables
• func GetApiServerArgs(securityEnhancement bool, enableAudit bool) map[string]string
• func GetControllermanagerArgs(version string, securityEnhancement bool) map[string]string
• func GetKubeProxyConfiguration(kubeConf *common.KubeConf) map[string]interface{}
• func GetKubeletCgroupDriver(runtime connector.Runtime, kubeConf *common.KubeConf) (string, error)
• func GetKubeletConfiguration(runtime connector.Runtime, kubeConf *common.KubeConf, criSock string, ...) map[string]interface{}
• func GetSchedulerArgs(securityEnhancement bool) map[string]string
• func UpdateFeatureGatesConfiguration(args map[string]string, kubeConf *common.KubeConf) map[string]string

Variables

var (
	// ref: https://kubernetes.io/docs/reference/command-line-tools-reference/feature-gates/
	FeatureGatesDefaultConfiguration = map[string]bool{
		"RotateKubeletServerCertificate": true,
		"TTLAfterFinished":               true,
		"ExpandCSIVolumes":               true,
		"CSIStorageCapacity":             true,
	}
	FeatureGatesSecurityDefaultConfiguration = map[string]bool{
		"RotateKubeletServerCertificate": true,
		"TTLAfterFinished":               true,
		"ExpandCSIVolumes":               true,
		"CSIStorageCapacity":             true,
		"SeccompDefault":                 true,
	}

	ApiServerArgs = map[string]string{
		"bind-address": "0.0.0.0",
	}
	ApiServerSecurityArgs = map[string]string{
		"bind-address":       "0.0.0.0",
		"authorization-mode": "Node,RBAC",

		"enable-admission-plugins": "AlwaysPullImages,ServiceAccount,NamespaceLifecycle,NodeRestriction,LimitRanger,ResourceQuota,MutatingAdmissionWebhook,ValidatingAdmissionWebhook,PodNodeSelector,PodSecurity",

		"profiling":              "false",
		"request-timeout":        "120s",
		"service-account-lookup": "true",
		"tls-min-version":        "VersionTLS12",
		"tls-cipher-suites":      "TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256,TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256,TLS_ECDHE_ECDSA_WITH_CHACHA20_POLY1305",
	}

	ControllermanagerArgs = map[string]string{
		"bind-address":             "0.0.0.0",
		"cluster-signing-duration": "87600h",
	}
	ControllermanagerSecurityArgs = map[string]string{
		"bind-address":                    "127.0.0.1",
		"cluster-signing-duration":        "87600h",
		"profiling":                       "false",
		"terminated-pod-gc-threshold":     "50",
		"use-service-account-credentials": "true",
	}
	SchedulerArgs = map[string]string{
		"bind-address": "0.0.0.0",
	}
	SchedulerSecurityArgs = map[string]string{
		"bind-address": "127.0.0.1",
		"profiling":    "false",
	}
)

var (

	// KubeadmConfig defines the template of kubeadm configuration file.
	KubeadmConfig = template.Must(template.New("kubeadm-config.yaml").Funcs(funcMap).Parse(
		dedent.Dedent(`
{{- if .IsInitCluster -}}
---
apiVersion: kubeadm.k8s.io/v1beta2
kind: ClusterConfiguration
etcd:
{{- if .EtcdTypeIsKubeadm }}
  local:
    imageRepository: {{ .EtcdRepo }}
    imageTag: {{ .EtcdTag }}
    serverCertSANs:
    {{- range .ExternalEtcd.Endpoints }}
    - {{ . }}
    {{- end }}
{{- else }}
  external:
    endpoints:
    {{- range .ExternalEtcd.Endpoints }}
    - {{ . }}
    {{- end }}
{{- if .ExternalEtcd.CAFile }}
    caFile: {{ .ExternalEtcd.CAFile }}
{{- end }}
{{- if .ExternalEtcd.CertFile }}
    certFile: {{ .ExternalEtcd.CertFile }}
{{- end }}
{{- if .ExternalEtcd.KeyFile }}
    keyFile: {{ .ExternalEtcd.KeyFile }}
{{- end }}
{{- end }}
dns:
  type: CoreDNS
  imageRepository: {{ .CorednsRepo }}
  imageTag: {{ .CorednsTag }}
imageRepository: {{ .ImageRepo }}
kubernetesVersion: {{ .Version }}
certificatesDir: /etc/kubernetes/pki
clusterName: {{ .ClusterName }}
controlPlaneEndpoint: {{ .ControlPlaneEndpoint }}
networking:
  dnsDomain: {{ .DNSDomain }}
  podSubnet: {{ .PodSubnet }}
  serviceSubnet: {{ .ServiceSubnet }}
apiServer:
  extraArgs:
{{ toYaml .ApiServerArgs | indent 4}}
  certSANs:
    {{- range .CertSANs }}
    - "{{ . }}"
    {{- end }}
{{- if .EnableAudit }} 
  extraVolumes:
  - name: k8s-audit
    hostPath: /etc/kubernetes/audit
    mountPath: /etc/kubernetes/audit
    pathType: DirectoryOrCreate
{{- end }}
controllerManager:
  extraArgs:
    node-cidr-mask-size: "{{ .NodeCidrMaskSize }}"
{{ toYaml .ControllerManagerArgs | indent 4 }}
  extraVolumes:
  - name: host-time
    hostPath: /etc/localtime
    mountPath: /etc/localtime
    readOnly: true
scheduler:
  extraArgs:
{{ toYaml .SchedulerArgs | indent 4 }}

---
apiVersion: kubeadm.k8s.io/v1beta2
kind: InitConfiguration
localAPIEndpoint:
  advertiseAddress: {{ .AdvertiseAddress }}
  bindPort: {{ .BindPort }}
nodeRegistration:
{{- if .CriSock }}
  criSocket: {{ .CriSock }}
{{- end }}
  kubeletExtraArgs:
    cgroup-driver: {{ .CgroupDriver }}
---
apiVersion: kubeproxy.config.k8s.io/v1alpha1
kind: KubeProxyConfiguration
{{ toYaml .KubeProxyConfiguration }}
---
apiVersion: kubelet.config.k8s.io/v1beta1
kind: KubeletConfiguration
{{ toYaml .KubeletConfiguration }}

{{- else -}}
---
apiVersion: kubeadm.k8s.io/v1beta2
kind: JoinConfiguration
discovery:
  bootstrapToken:
    apiServerEndpoint: {{ .ControlPlaneEndpoint }}
    token: "{{ .BootstrapToken }}"
    unsafeSkipCAVerification: true
  tlsBootstrapToken: "{{ .BootstrapToken }}"
{{- if .IsControlPlane }}
controlPlane:
  localAPIEndpoint:
    advertiseAddress: {{ .AdvertiseAddress }}
    bindPort: {{ .BindPort }}
  certificateKey: {{ .CertificateKey }}
{{- end }}
nodeRegistration:
{{- if .CriSock }}
  criSocket: {{ .CriSock }}
{{- end }}
  kubeletExtraArgs:
    cgroup-driver: {{ .CgroupDriver }}

{{- end }}
    `)))
)

Functions

func GetApiServerArgs

func GetApiServerArgs(securityEnhancement bool, enableAudit bool) map[string]string

func GetControllermanagerArgs

func GetControllermanagerArgs(version string, securityEnhancement bool) map[string]string

func GetKubeProxyConfiguration

func GetKubeProxyConfiguration(kubeConf *common.KubeConf) map[string]interface{}

func GetKubeletCgroupDriver

func GetKubeletCgroupDriver(runtime connector.Runtime, kubeConf *common.KubeConf) (string, error)

func GetKubeletConfiguration

func GetKubeletConfiguration(runtime connector.Runtime, kubeConf *common.KubeConf, criSock string, securityEnhancement bool) map[string]interface{}

func GetSchedulerArgs

func GetSchedulerArgs(securityEnhancement bool) map[string]string

func UpdateFeatureGatesConfiguration

func UpdateFeatureGatesConfiguration(args map[string]string, kubeConf *common.KubeConf) map[string]string