v1alpha3

package
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 Go to latest Published: Dec 11, 2019 License: Apache-2.0 Imports: 19 Imported by: 0

Documentation

Overview

Package v1alpha3 defines the v1alpha3 version of the kubeadm config file format, that is a big step forward the objective of graduate kubeadm config to beta.

One of the biggest changes introduced by this release is the re-design of how component config can be provided to kubeadm; this will enable a improved stability of the kubeadm config while the efforts for the implementation of component config across Kubernetes ecosystem continues.

Another important change is the separation between cluster wide setting and runtime or node specific settings, that is functional to the objective to introduce support for HA clusters in kubeadm.

Migration from old kubeadm config versions

Please convert your v1alpha2 configuration files to v1alpha3 using the kubeadm config migrate command of kubeadm v1.12.x (conversion from older releases of kubeadm config files requires older release of kubeadm as well e.g. 

kubeadm v1.11 should be used to migrate v1alpha1 to v1alpha2).

Nevertheless, kubeadm v1.12.x will support reading from v1alpha2 version of the kubeadm config file format, but this support will be dropped in the v1.13 release.

Basics

The preferred way to configure kubeadm is to pass an YAML configuration file with the --config option. Some of the configuration options defined in the kubeadm config file are also available as command line flags, but only the most common/simple use case are supported with this approach.

A kubeadm config file could contain multiple configuration types separated using three dashes (“---”).

The kubeadm config print-defaults command print the default values for all the kubeadm supported configuration types. 

apiVersion: kubeadm.k8s.io/v1alpha3
kind: InitConfiguration
    ...
---
apiVersion: kubeadm.k8s.io/v1alpha3
kind: ClusterConfiguration
    ...
---
apiVersion: kubelet.config.k8s.io/v1beta1
kind: KubeletConfiguration
    ...
---
apiVersion: kubeproxy.config.k8s.io/v1alpha1
kind: KubeProxyConfiguration
    ...
---
apiVersion: kubeadm.k8s.io/v1alpha3
kind: JoinConfiguration
    ...

The list of configuration types that must be included in a configuration file depends by the action you are performing (init or join) and by the configuration options you are going to use (defaults or advanced customization).

If some configuration types are not provided, or provided only partially, kubeadm will use default values; defaults provided by kubeadm includes also enforcing consistency of values across components when required (e.g. cluster-cidr flag on controller manager and clusterCIDR on kube-proxy).

Users are always allowed to override default values, with the only exception of a small subset of setting with relevance for security (e.g. enforce authorization-mode Node and RBAC on api server)

Starting from v1.12.1, if the user provides a configuration types that is not expected for the action you are performing, kubeadm will ignore those types and print a warning.

Kubeadm init configuration types

When executing kubeadm init with the --config option, the following configuration types could be used: InitConfiguration, ClusterConfiguration, KubeProxyConfiguration, KubeletConfiguration, but only one between InitConfiguration and ClusterConfiguration is mandatory. 

apiVersion: kubeadm.k8s.io/v1alpha3
kind: InitConfiguration
bootstrapTokens:
    ...
nodeRegistration:
    ...
apiEndpoint:
    ...

InitConfiguration (and as well ClusterConfiguration afterwards) are originated from the MasterConfiguration type in the v1alpha2 kubeadm config version.

- The InitConfiguration type should be used to configure runtime settings, that in case of kubeadm init are the configuration of the bootstrap token and all the setting which are specific to the node where kubeadm is executed, including:

- NodeRegistration, that holds fields that relate to registering the new node to the cluster; use it to customize the node name, the CRI socket to use or any other settings that should apply to this node only (e.g. the node ip).

- APIEndpoint, that represents the endpoint of the instance of the API server to be deployed on this node; use it e.g. to customize the API server advertise address. 

apiVersion: kubeadm.k8s.io/v1alpha3
kind: ClusterConfiguration
networking:
    ...
etcd:
    ...
apiServerExtraArgs:
    ...
APIServerExtraVolumes:
    ...
...

The ClusterConfiguration type should be used to configure cluster-wide settings, including settings for:

- Networking, that holds configuration for the networking topology of the cluster; use it e.g. to customize node subnet or services subnet.

- Etcd configurations; use it e.g. to customize the local etcd or to configure the API server for using an external etcd cluster.

- kube-apiserver, kube-scheduler, kube-controller-manager configurations; use it to customize control-plane components by adding customized setting or overriding kubeadm default settings. 

apiVersion: kubeproxy.config.k8s.io/v1alpha1
kind: KubeProxyConfiguration
   ...

The KubeProxyConfiguration type should be used to change the configuration passed to kube-proxy instances deployed in the cluster. If this object is not provided or provided only partially, kubeadm applies defaults.

See https://kubernetes.io/docs/reference/command-line-tools-reference/kube-proxy/ or https://godoc.org/k8s.io/kube-proxy/config/v1alpha1#KubeProxyConfiguration for kube proxy official documentation. 

apiVersion: kubelet.config.k8s.io/v1beta1
kind: KubeletConfiguration
   ...

The KubeletConfiguration type should be used to change the configurations that will be passed to all kubelet instances deployed in the cluster. If this object is not provided or provided only partially, kubeadm applies defaults.

See https://kubernetes.io/docs/reference/command-line-tools-reference/kubelet/ or https://godoc.org/k8s.io/kubelet/config/v1beta1#KubeletConfiguration for kube proxy official documentation.

Here is a fully populated example of a single YAML file containing multiple configuration types to be used during a `kubeadm init` run. 

apiVersion: kubeadm.k8s.io/v1alpha3
kind: InitConfiguration
bootstrapTokens:
- token: "9a08jv.c0izixklcxtmnze7"
  description: "kubeadm bootstrap token"
  ttl: "24h"
- token: "783bde.3f89s0fje9f38fhf"
  description: "another bootstrap token"
  usages:
  - signing
  groups:
  - system:anonymous
nodeRegistration:
  name: "ec2-10-100-0-1"
  criSocket: "/var/run/dockershim.sock"
  taints:
  - key: "kubeadmNode"
    value: "master"
    effect: "NoSchedule"
  kubeletExtraArgs:
    cgroup-driver: "cgroupfs"
apiEndpoint:
  advertiseAddress: "10.100.0.1"
  bindPort: 6443
---
apiVersion: kubeadm.k8s.io/v1alpha3
kind: ClusterConfiguration
etcd:
  # one of local or external
  local:
    image: "k8s.gcr.io/etcd-amd64:3.2.18"
    dataDir: "/var/lib/etcd"
    extraArgs:
      listen-client-urls: "http://10.100.0.1:2379"
    serverCertSANs:
    -  "ec2-10-100-0-1.compute-1.amazonaws.com"
    peerCertSANs:
    - "10.100.0.1"
  external:
    endpoints:
    - "10.100.0.1:2379"
    - "10.100.0.2:2379"
    caFile: "/etcd/kubernetes/pki/etcd/etcd-ca.crt"
    certFile: "/etcd/kubernetes/pki/etcd/etcd.crt"
    certKey: "/etcd/kubernetes/pki/etcd/etcd.key"
networking:
  serviceSubnet: "10.96.0.0/12"
  podSubnet: "10.100.0.1/24"
  dnsDomain: "cluster.local"
kubernetesVersion: "v1.12.0"
controlPlaneEndpoint: "10.100.0.1:6443"
apiServerExtraArgs:
  authorization-mode: "Node,RBAC"
controllerManagerExtraArgs:
  node-cidr-mask-size: 20
schedulerExtraArgs:
  address: "10.100.0.1"
apiServerExtraVolumes:
- name: "some-volume"
  hostPath: "/etc/some-path"
  mountPath: "/etc/some-pod-path"
  writable: true
  pathType: File
controllerManagerExtraVolumes:
- name: "some-volume"
  hostPath: "/etc/some-path"
  mountPath: "/etc/some-pod-path"
  writable: true
  pathType: File
schedulerExtraVolumes:
- name: "some-volume"
  hostPath: "/etc/some-path"
  mountPath: "/etc/some-pod-path"
  writable: true
  pathType: File
apiServerCertSANs:
- "10.100.1.1"
- "ec2-10-100-0-1.compute-1.amazonaws.com"
certificatesDir: "/etc/kubernetes/pki"
imageRepository: "k8s.gcr.io"
unifiedControlPlaneImage: "k8s.gcr.io/controlplane:v1.12.0"
auditPolicy:
  # https://kubernetes.io/docs/tasks/debug-application-cluster/audit/#audit-policy
  path: "/var/log/audit/audit.json"
  logDir: "/var/log/audit"
  logMaxAge: 7 # in days
featureGates:
  selfhosting: false
clusterName: "example-cluster"

Kubeadm join configuration types

When executing kubeadm join with the --config option, the JoinConfiguration type should be provided. 

apiVersion: kubeadm.k8s.io/v1alpha3
kind: JoinConfiguration
   ...

JoinConfiguration is originated from NodeConfiguration type in the v1alpha2 kubeadm config version.

The JoinConfiguration type should be used to configure runtime settings, that in case of kubeadm join are the discovery method used for accessing the cluster info and all the setting which are specific to the node where kubeadm is executed, including:

- NodeRegistration, that holds fields that relate to registering the new node to the cluster; use it to customize the node name, the CRI socket to use or any other settings that should apply to this node only (e.g. the node ip).

- APIEndpoint, that represents the endpoint of the instance of the API server to be eventually deployed on this node.

Index

Constants

View Source 
const (
	// DefaultServiceDNSDomain defines default cluster-internal domain name for Services and Pods
	DefaultServiceDNSDomain = "cluster.local"
	// DefaultServicesSubnet defines default service subnet range
	DefaultServicesSubnet = "10.96.0.0/12"
	// DefaultClusterDNSIP defines default DNS IP
	DefaultClusterDNSIP = "10.96.0.10"
	// DefaultKubernetesVersion defines default kubernetes version
	DefaultKubernetesVersion = "stable-1"
	// DefaultAPIBindPort defines default API port
	DefaultAPIBindPort = 6443
	// DefaultCertificatesDir defines default certificate directory
	DefaultCertificatesDir = "/etc/kubernetes/pki"
	// DefaultImageRepository defines default image registry
	DefaultImageRepository = "k8s.gcr.io"
	// DefaultManifestsDir defines default manifests directory
	DefaultManifestsDir = "/etc/kubernetes/manifests"
	// DefaultClusterName defines the default cluster name
	DefaultClusterName = "kubernetes"

	// DefaultEtcdDataDir defines default location of etcd where static pods will save data to
	DefaultEtcdDataDir = "/var/lib/etcd"
	// DefaultProxyBindAddressv4 is the default bind address when the advertise address is v4
	DefaultProxyBindAddressv4 = "0.0.0.0"
	// DefaultProxyBindAddressv6 is the default bind address when the advertise address is v6
	DefaultProxyBindAddressv6 = "::"
	// DefaultDiscoveryTimeout specifies the default discovery timeout for kubeadm (used unless one is specified in the JoinConfiguration)
	DefaultDiscoveryTimeout = 5 * time.Minute
)
View Source 
const (
	// DefaultCACertPath defines default location of CA certificate on Linux
	DefaultCACertPath = "/etc/kubernetes/pki/ca.crt"
)
View Source 
const GroupName = "kubeadm.k8s.io"

GroupName is the group name use in this package

Variables

View Source 
var (

	// SchemeBuilder points to a list of functions added to Scheme.
	SchemeBuilder runtime.SchemeBuilder

	// AddToScheme applies all the stored functions to the scheme.
	AddToScheme = localSchemeBuilder.AddToScheme
)
View Source 
var (
	// DefaultAuditPolicyLogMaxAge is defined as a var so its address can be taken
	// It is the number of days to store audit logs
	DefaultAuditPolicyLogMaxAge = int32(2)
)
View Source 
var SchemeGroupVersion = schema.GroupVersion{Group: GroupName, Version: "v1alpha3"}

SchemeGroupVersion is group version used to register these objects

Functions

func Convert_kubeadm_APIEndpoint_To_v1alpha3_APIEndpoint 

func Convert_kubeadm_APIEndpoint_To_v1alpha3_APIEndpoint(in *kubeadm.APIEndpoint, out *APIEndpoint, s conversion.Scope) error

Convert_kubeadm_APIEndpoint_To_v1alpha3_APIEndpoint is an autogenerated conversion function.

func Convert_kubeadm_BootstrapTokenString_To_v1alpha3_BootstrapTokenString 

func Convert_kubeadm_BootstrapTokenString_To_v1alpha3_BootstrapTokenString(in *kubeadm.BootstrapTokenString, out *BootstrapTokenString, s conversion.Scope) error

Convert_kubeadm_BootstrapTokenString_To_v1alpha3_BootstrapTokenString is an autogenerated conversion function.

func Convert_kubeadm_BootstrapToken_To_v1alpha3_BootstrapToken 

func Convert_kubeadm_BootstrapToken_To_v1alpha3_BootstrapToken(in *kubeadm.BootstrapToken, out *BootstrapToken, s conversion.Scope) error

Convert_kubeadm_BootstrapToken_To_v1alpha3_BootstrapToken is an autogenerated conversion function.

func Convert_kubeadm_ClusterConfiguration_To_v1alpha3_ClusterConfiguration 

func Convert_kubeadm_ClusterConfiguration_To_v1alpha3_ClusterConfiguration(in *kubeadm.ClusterConfiguration, out *ClusterConfiguration, s conversion.Scope) error

func Convert_kubeadm_ClusterStatus_To_v1alpha3_ClusterStatus 

func Convert_kubeadm_ClusterStatus_To_v1alpha3_ClusterStatus(in *kubeadm.ClusterStatus, out *ClusterStatus, s conversion.Scope) error

Convert_kubeadm_ClusterStatus_To_v1alpha3_ClusterStatus is an autogenerated conversion function.

func Convert_kubeadm_Etcd_To_v1alpha3_Etcd 

func Convert_kubeadm_Etcd_To_v1alpha3_Etcd(in *kubeadm.Etcd, out *Etcd, s conversion.Scope) error

Convert_kubeadm_Etcd_To_v1alpha3_Etcd is an autogenerated conversion function.

func Convert_kubeadm_ExternalEtcd_To_v1alpha3_ExternalEtcd 

func Convert_kubeadm_ExternalEtcd_To_v1alpha3_ExternalEtcd(in *kubeadm.ExternalEtcd, out *ExternalEtcd, s conversion.Scope) error

Convert_kubeadm_ExternalEtcd_To_v1alpha3_ExternalEtcd is an autogenerated conversion function.

func Convert_kubeadm_HostPathMount_To_v1alpha3_HostPathMount 

func Convert_kubeadm_HostPathMount_To_v1alpha3_HostPathMount(in *kubeadm.HostPathMount, out *HostPathMount, s conversion.Scope) error

func Convert_kubeadm_InitConfiguration_To_v1alpha3_InitConfiguration 

func Convert_kubeadm_InitConfiguration_To_v1alpha3_InitConfiguration(in *kubeadm.InitConfiguration, out *InitConfiguration, s conversion.Scope) error

func Convert_kubeadm_JoinConfiguration_To_v1alpha3_JoinConfiguration 

func Convert_kubeadm_JoinConfiguration_To_v1alpha3_JoinConfiguration(in *kubeadm.JoinConfiguration, out *JoinConfiguration, s conversion.Scope) error

func Convert_kubeadm_LocalEtcd_To_v1alpha3_LocalEtcd 

func Convert_kubeadm_LocalEtcd_To_v1alpha3_LocalEtcd(in *kubeadm.LocalEtcd, out *LocalEtcd, s conversion.Scope) error

func Convert_kubeadm_Networking_To_v1alpha3_Networking 

func Convert_kubeadm_Networking_To_v1alpha3_Networking(in *kubeadm.Networking, out *Networking, s conversion.Scope) error

Convert_kubeadm_Networking_To_v1alpha3_Networking is an autogenerated conversion function.

func Convert_kubeadm_NodeRegistrationOptions_To_v1alpha3_NodeRegistrationOptions 

func Convert_kubeadm_NodeRegistrationOptions_To_v1alpha3_NodeRegistrationOptions(in *kubeadm.NodeRegistrationOptions, out *NodeRegistrationOptions, s conversion.Scope) error

Convert_kubeadm_NodeRegistrationOptions_To_v1alpha3_NodeRegistrationOptions is an autogenerated conversion function.

func Convert_v1alpha3_APIEndpoint_To_kubeadm_APIEndpoint 

func Convert_v1alpha3_APIEndpoint_To_kubeadm_APIEndpoint(in *APIEndpoint, out *kubeadm.APIEndpoint, s conversion.Scope) error

Convert_v1alpha3_APIEndpoint_To_kubeadm_APIEndpoint is an autogenerated conversion function.

func Convert_v1alpha3_BootstrapTokenString_To_kubeadm_BootstrapTokenString 

func Convert_v1alpha3_BootstrapTokenString_To_kubeadm_BootstrapTokenString(in *BootstrapTokenString, out *kubeadm.BootstrapTokenString, s conversion.Scope) error

Convert_v1alpha3_BootstrapTokenString_To_kubeadm_BootstrapTokenString is an autogenerated conversion function.

func Convert_v1alpha3_BootstrapToken_To_kubeadm_BootstrapToken 

func Convert_v1alpha3_BootstrapToken_To_kubeadm_BootstrapToken(in *BootstrapToken, out *kubeadm.BootstrapToken, s conversion.Scope) error

Convert_v1alpha3_BootstrapToken_To_kubeadm_BootstrapToken is an autogenerated conversion function.

func Convert_v1alpha3_ClusterConfiguration_To_kubeadm_ClusterConfiguration 

func Convert_v1alpha3_ClusterConfiguration_To_kubeadm_ClusterConfiguration(in *ClusterConfiguration, out *kubeadm.ClusterConfiguration, s conversion.Scope) error

func Convert_v1alpha3_ClusterStatus_To_kubeadm_ClusterStatus 

func Convert_v1alpha3_ClusterStatus_To_kubeadm_ClusterStatus(in *ClusterStatus, out *kubeadm.ClusterStatus, s conversion.Scope) error

Convert_v1alpha3_ClusterStatus_To_kubeadm_ClusterStatus is an autogenerated conversion function.

func Convert_v1alpha3_Etcd_To_kubeadm_Etcd 

func Convert_v1alpha3_Etcd_To_kubeadm_Etcd(in *Etcd, out *kubeadm.Etcd, s conversion.Scope) error

Convert_v1alpha3_Etcd_To_kubeadm_Etcd is an autogenerated conversion function.

func Convert_v1alpha3_ExternalEtcd_To_kubeadm_ExternalEtcd 

func Convert_v1alpha3_ExternalEtcd_To_kubeadm_ExternalEtcd(in *ExternalEtcd, out *kubeadm.ExternalEtcd, s conversion.Scope) error

Convert_v1alpha3_ExternalEtcd_To_kubeadm_ExternalEtcd is an autogenerated conversion function.

func Convert_v1alpha3_HostPathMount_To_kubeadm_HostPathMount 

func Convert_v1alpha3_HostPathMount_To_kubeadm_HostPathMount(in *HostPathMount, out *kubeadm.HostPathMount, s conversion.Scope) error

func Convert_v1alpha3_InitConfiguration_To_kubeadm_InitConfiguration 

func Convert_v1alpha3_InitConfiguration_To_kubeadm_InitConfiguration(in *InitConfiguration, out *kubeadm.InitConfiguration, s conversion.Scope) error

func Convert_v1alpha3_JoinConfiguration_To_kubeadm_JoinConfiguration 

func Convert_v1alpha3_JoinConfiguration_To_kubeadm_JoinConfiguration(in *JoinConfiguration, out *kubeadm.JoinConfiguration, s conversion.Scope) error

func Convert_v1alpha3_LocalEtcd_To_kubeadm_LocalEtcd 

func Convert_v1alpha3_LocalEtcd_To_kubeadm_LocalEtcd(in *LocalEtcd, out *kubeadm.LocalEtcd, s conversion.Scope) error

func Convert_v1alpha3_Networking_To_kubeadm_Networking 

func Convert_v1alpha3_Networking_To_kubeadm_Networking(in *Networking, out *kubeadm.Networking, s conversion.Scope) error

Convert_v1alpha3_Networking_To_kubeadm_Networking is an autogenerated conversion function.

func Convert_v1alpha3_NodeRegistrationOptions_To_kubeadm_NodeRegistrationOptions 

func Convert_v1alpha3_NodeRegistrationOptions_To_kubeadm_NodeRegistrationOptions(in *NodeRegistrationOptions, out *kubeadm.NodeRegistrationOptions, s conversion.Scope) error

Convert_v1alpha3_NodeRegistrationOptions_To_kubeadm_NodeRegistrationOptions is an autogenerated conversion function.

func Convert_v1alpha3_UnifiedControlPlaneImage_To_kubeadm_UseHyperKubeImage added in v1.13.0 

func Convert_v1alpha3_UnifiedControlPlaneImage_To_kubeadm_UseHyperKubeImage(in *ClusterConfiguration, out *kubeadm.ClusterConfiguration) error

func Kind 

func Kind(kind string) schema.GroupKind

Kind takes an unqualified kind and returns a Group qualified GroupKind

func RegisterConversions 

func RegisterConversions(s *runtime.Scheme) error

RegisterConversions adds conversion functions to the given scheme. Public to allow building arbitrary schemes.

func RegisterDefaults 

func RegisterDefaults(scheme *runtime.Scheme) error

RegisterDefaults adds defaulters functions to the given scheme. Public to allow building arbitrary schemes. All generated defaulters are covering - they call all nested defaulters.

func Resource 

func Resource(resource string) schema.GroupResource

Resource takes an unqualified resource and returns a Group qualified GroupResource

func SetDefaults_APIEndpoint 

func SetDefaults_APIEndpoint(obj *APIEndpoint)

SetDefaults_APIEndpoint sets the defaults for the API server instance deployed on a node.

func SetDefaults_AuditPolicyConfiguration 

func SetDefaults_AuditPolicyConfiguration(obj *ClusterConfiguration)

SetDefaults_AuditPolicyConfiguration sets default values for the AuditPolicyConfiguration

func SetDefaults_BootstrapToken 

func SetDefaults_BootstrapToken(bt *BootstrapToken)

SetDefaults_BootstrapToken sets the defaults for an individual Bootstrap Token

func SetDefaults_BootstrapTokens 

func SetDefaults_BootstrapTokens(obj *InitConfiguration)

SetDefaults_BootstrapTokens sets the defaults for the .BootstrapTokens field If the slice is empty, it's defaulted with one token. Otherwise it just loops through the slice and sets the defaults for the omitempty fields that are TTL, Usages and Groups. Token is NOT defaulted with a random one in the API defaulting layer, but set to a random value later at runtime if not set before.

func SetDefaults_ClusterConfiguration 

func SetDefaults_ClusterConfiguration(obj *ClusterConfiguration)

SetDefaults_ClusterConfiguration assigns default values for the ClusterConfiguration

func SetDefaults_Etcd 

func SetDefaults_Etcd(obj *ClusterConfiguration)

SetDefaults_Etcd assigns default values for the Proxy

func SetDefaults_InitConfiguration 

func SetDefaults_InitConfiguration(obj *InitConfiguration)

SetDefaults_InitConfiguration assigns default values for the InitConfiguration

func SetDefaults_JoinConfiguration 

func SetDefaults_JoinConfiguration(obj *JoinConfiguration)

SetDefaults_JoinConfiguration assigns default values to a regular node

func SetObjectDefaults_ClusterConfiguration 

func SetObjectDefaults_ClusterConfiguration(in *ClusterConfiguration)

func SetObjectDefaults_ClusterStatus 

func SetObjectDefaults_ClusterStatus(in *ClusterStatus)

func SetObjectDefaults_InitConfiguration 

func SetObjectDefaults_InitConfiguration(in *InitConfiguration)

func SetObjectDefaults_JoinConfiguration 

func SetObjectDefaults_JoinConfiguration(in *JoinConfiguration)

Types

type APIEndpoint 

type APIEndpoint struct {
	// AdvertiseAddress sets the IP address for the API server to advertise.
	AdvertiseAddress string `json:"advertiseAddress"`

	// BindPort sets the secure port for the API Server to bind to.
	// Defaults to 6443.
	BindPort int32 `json:"bindPort"`
}

APIEndpoint struct contains elements of API server instance deployed on a node.

func (*APIEndpoint) DeepCopy 

func (in *APIEndpoint) DeepCopy() *APIEndpoint

DeepCopy is an autogenerated deepcopy function, copying the receiver, creating a new APIEndpoint.

func (*APIEndpoint) DeepCopyInto 

func (in *APIEndpoint) DeepCopyInto(out *APIEndpoint)

DeepCopyInto is an autogenerated deepcopy function, copying the receiver, writing into out. in must be non-nil.

type AuditPolicyConfiguration 

type AuditPolicyConfiguration struct {
	// Path is the local path to an audit policy.
	Path string `json:"path"`
	// LogDir is the local path to the directory where logs should be stored.
	LogDir string `json:"logDir"`
	// LogMaxAge is the number of days logs will be stored for. 0 indicates forever.
	LogMaxAge *int32 `json:"logMaxAge,omitempty"`
}

AuditPolicyConfiguration holds the options for configuring the api server audit policy.

func (*AuditPolicyConfiguration) DeepCopy 

func (in *AuditPolicyConfiguration) DeepCopy() *AuditPolicyConfiguration

DeepCopy is an autogenerated deepcopy function, copying the receiver, creating a new AuditPolicyConfiguration.

func (*AuditPolicyConfiguration) DeepCopyInto 

func (in *AuditPolicyConfiguration) DeepCopyInto(out *AuditPolicyConfiguration)

DeepCopyInto is an autogenerated deepcopy function, copying the receiver, writing into out. in must be non-nil.

type BootstrapToken 

type BootstrapToken struct {
	// Token is used for establishing bidirectional trust between nodes and control-planes.
	// Used for joining nodes in the cluster.
	Token *BootstrapTokenString `json:"token"`
	// Description sets a human-friendly message why this token exists and what it's used
	// for, so other administrators can know its purpose.
	Description string `json:"description,omitempty"`
	// TTL defines the time to live for this token. Defaults to 24h.
	// Expires and TTL are mutually exclusive.
	TTL *metav1.Duration `json:"ttl,omitempty"`
	// Expires specifies the timestamp when this token expires. Defaults to being set
	// dynamically at runtime based on the TTL. Expires and TTL are mutually exclusive.
	Expires *metav1.Time `json:"expires,omitempty"`
	// Usages describes the ways in which this token can be used. Can by default be used
	// for establishing bidirectional trust, but that can be changed here.
	Usages []string `json:"usages,omitempty"`
	// Groups specifies the extra groups that this token will authenticate as when/if
	// used for authentication
	Groups []string `json:"groups,omitempty"`
}

BootstrapToken describes one bootstrap token, stored as a Secret in the cluster

func (*BootstrapToken) DeepCopy 

func (in *BootstrapToken) DeepCopy() *BootstrapToken

DeepCopy is an autogenerated deepcopy function, copying the receiver, creating a new BootstrapToken.

func (*BootstrapToken) DeepCopyInto 

func (in *BootstrapToken) DeepCopyInto(out *BootstrapToken)

DeepCopyInto is an autogenerated deepcopy function, copying the receiver, writing into out. in must be non-nil.

type BootstrapTokenString 

type BootstrapTokenString struct {
	ID     string
	Secret string
}

BootstrapTokenString is a token of the format abcdef.abcdef0123456789 that is used for both validation of the practically of the API server from a joining node's point of view and as an authentication method for the node in the bootstrap phase of "kubeadm join". This token is and should be short-lived

func NewBootstrapTokenString 

func NewBootstrapTokenString(token string) (*BootstrapTokenString, error)

NewBootstrapTokenString converts the given Bootstrap Token as a string to the BootstrapTokenString object used for serialization/deserialization and internal usage. It also automatically validates that the given token is of the right format

func NewBootstrapTokenStringFromIDAndSecret 

func NewBootstrapTokenStringFromIDAndSecret(id, secret string) (*BootstrapTokenString, error)

NewBootstrapTokenStringFromIDAndSecret is a wrapper around NewBootstrapTokenString that allows the caller to specify the ID and Secret separately

func (*BootstrapTokenString) DeepCopy 

func (in *BootstrapTokenString) DeepCopy() *BootstrapTokenString

DeepCopy is an autogenerated deepcopy function, copying the receiver, creating a new BootstrapTokenString.

func (*BootstrapTokenString) DeepCopyInto 

func (in *BootstrapTokenString) DeepCopyInto(out *BootstrapTokenString)

DeepCopyInto is an autogenerated deepcopy function, copying the receiver, writing into out. in must be non-nil.

func (BootstrapTokenString) MarshalJSON 

func (bts BootstrapTokenString) MarshalJSON() ([]byte, error)

MarshalJSON implements the json.Marshaler interface.

func (BootstrapTokenString) String 

func (bts BootstrapTokenString) String() string

String returns the string representation of the BootstrapTokenString

func (*BootstrapTokenString) UnmarshalJSON 

func (bts *BootstrapTokenString) UnmarshalJSON(b []byte) error

UnmarshalJSON implements the json.Unmarshaller interface.

type ClusterConfiguration 

type ClusterConfiguration struct {
	metav1.TypeMeta `json:",inline"`

	// Etcd holds configuration for etcd.
	Etcd Etcd `json:"etcd"`

	// Networking holds configuration for the networking topology of the cluster.
	Networking Networking `json:"networking"`

	// KubernetesVersion is the target version of the control plane.
	KubernetesVersion string `json:"kubernetesVersion"`

	// ControlPlaneEndpoint sets a stable IP address or DNS name for the control plane; it
	// can be a valid IP address or a RFC-1123 DNS subdomain, both with optional TCP port.
	// In case the ControlPlaneEndpoint is not specified, the AdvertiseAddress + BindPort
	// are used; in case the ControlPlaneEndpoint is specified but without a TCP port,
	// the BindPort is used.
	// Possible usages are:
	// e.g. In a cluster with more than one control plane instances, this field should be
	// assigned the address of the external load balancer in front of the
	// control plane instances.
	// e.g.  in environments with enforced node recycling, the ControlPlaneEndpoint
	// could be used for assigning a stable DNS to the control plane.
	ControlPlaneEndpoint string `json:"controlPlaneEndpoint"`

	// APIServerExtraArgs is a set of extra flags to pass to the API Server or override
	// default ones in form of <flagname>=<value>.
	// TODO: This is temporary and ideally we would like to switch all components to
	// use ComponentConfig + ConfigMaps.
	APIServerExtraArgs map[string]string `json:"apiServerExtraArgs,omitempty"`
	// ControllerManagerExtraArgs is a set of extra flags to pass to the Controller Manager
	// or override default ones in form of <flagname>=<value>
	// TODO: This is temporary and ideally we would like to switch all components to
	// use ComponentConfig + ConfigMaps.
	ControllerManagerExtraArgs map[string]string `json:"controllerManagerExtraArgs,omitempty"`
	// SchedulerExtraArgs is a set of extra flags to pass to the Scheduler or override
	// default ones in form of <flagname>=<value>
	// TODO: This is temporary and ideally we would like to switch all components to
	// use ComponentConfig + ConfigMaps.
	SchedulerExtraArgs map[string]string `json:"schedulerExtraArgs,omitempty"`

	// APIServerExtraVolumes is an extra set of host volumes mounted to the API server.
	APIServerExtraVolumes []HostPathMount `json:"apiServerExtraVolumes,omitempty"`
	// ControllerManagerExtraVolumes is an extra set of host volumes mounted to the
	// Controller Manager.
	ControllerManagerExtraVolumes []HostPathMount `json:"controllerManagerExtraVolumes,omitempty"`
	// SchedulerExtraVolumes is an extra set of host volumes mounted to the scheduler.
	SchedulerExtraVolumes []HostPathMount `json:"schedulerExtraVolumes,omitempty"`

	// APIServerCertSANs sets extra Subject Alternative Names for the API Server signing cert.
	APIServerCertSANs []string `json:"apiServerCertSANs,omitempty"`
	// CertificatesDir specifies where to store or look for all required certificates.
	CertificatesDir string `json:"certificatesDir"`

	// ImageRepository what container registry to pull control plane images from
	ImageRepository string `json:"imageRepository"`
	// UnifiedControlPlaneImage specifies if a specific container image should
	// be used for all control plane components.
	UnifiedControlPlaneImage string `json:"unifiedControlPlaneImage"`

	// AuditPolicyConfiguration defines the options for the api server audit system
	AuditPolicyConfiguration AuditPolicyConfiguration `json:"auditPolicy"`

	// FeatureGates enabled by the user.
	FeatureGates map[string]bool `json:"featureGates,omitempty"`

	// The cluster name
	ClusterName string `json:"clusterName,omitempty"`
}

ClusterConfiguration contains cluster-wide configuration for a kubeadm cluster

func (*ClusterConfiguration) DeepCopy 

func (in *ClusterConfiguration) DeepCopy() *ClusterConfiguration

DeepCopy is an autogenerated deepcopy function, copying the receiver, creating a new ClusterConfiguration.

func (*ClusterConfiguration) DeepCopyInto 

func (in *ClusterConfiguration) DeepCopyInto(out *ClusterConfiguration)

DeepCopyInto is an autogenerated deepcopy function, copying the receiver, writing into out. in must be non-nil.

func (*ClusterConfiguration) DeepCopyObject 

func (in *ClusterConfiguration) DeepCopyObject() runtime.Object

DeepCopyObject is an autogenerated deepcopy function, copying the receiver, creating a new runtime.Object.

type ClusterStatus 

type ClusterStatus struct {
	metav1.TypeMeta `json:",inline"`

	// APIEndpoints currently available in the cluster, one for each control plane/api server instance.
	// The key of the map is the IP of the host's default interface
	APIEndpoints map[string]APIEndpoint `json:"apiEndpoints"`
}

ClusterStatus contains the cluster status. The ClusterStatus will be stored in the kubeadm-config ConfigMap in the cluster, and then updated by kubeadm when additional control plane instance joins or leaves the cluster.

func (*ClusterStatus) DeepCopy 

func (in *ClusterStatus) DeepCopy() *ClusterStatus

DeepCopy is an autogenerated deepcopy function, copying the receiver, creating a new ClusterStatus.

func (*ClusterStatus) DeepCopyInto 

func (in *ClusterStatus) DeepCopyInto(out *ClusterStatus)

DeepCopyInto is an autogenerated deepcopy function, copying the receiver, writing into out. in must be non-nil.

func (*ClusterStatus) DeepCopyObject 

func (in *ClusterStatus) DeepCopyObject() runtime.Object

DeepCopyObject is an autogenerated deepcopy function, copying the receiver, creating a new runtime.Object.

type Etcd 

type Etcd struct {

	// Local provides configuration knobs for configuring the local etcd instance
	// Local and External are mutually exclusive
	Local *LocalEtcd `json:"local,omitempty"`

	// External describes how to connect to an external etcd cluster
	// Local and External are mutually exclusive
	External *ExternalEtcd `json:"external,omitempty"`
}

Etcd contains elements describing Etcd configuration.

func (*Etcd) DeepCopy 

func (in *Etcd) DeepCopy() *Etcd

DeepCopy is an autogenerated deepcopy function, copying the receiver, creating a new Etcd.

func (*Etcd) DeepCopyInto 

func (in *Etcd) DeepCopyInto(out *Etcd)

DeepCopyInto is an autogenerated deepcopy function, copying the receiver, writing into out. in must be non-nil.

type ExternalEtcd 

type ExternalEtcd struct {
	// Endpoints of etcd members. Required for ExternalEtcd.
	Endpoints []string `json:"endpoints"`
	// CAFile is an SSL Certificate Authority file used to secure etcd communication.
	CAFile string `json:"caFile"`
	// CertFile is an SSL certification file used to secure etcd communication.
	CertFile string `json:"certFile"`
	// KeyFile is an SSL key file used to secure etcd communication.
	KeyFile string `json:"keyFile"`
}

ExternalEtcd describes an external etcd cluster

func (*ExternalEtcd) DeepCopy 

func (in *ExternalEtcd) DeepCopy() *ExternalEtcd

DeepCopy is an autogenerated deepcopy function, copying the receiver, creating a new ExternalEtcd.

func (*ExternalEtcd) DeepCopyInto 

func (in *ExternalEtcd) DeepCopyInto(out *ExternalEtcd)

DeepCopyInto is an autogenerated deepcopy function, copying the receiver, writing into out. in must be non-nil.

type HostPathMount 

type HostPathMount struct {
	// Name of the volume inside the pod template.
	Name string `json:"name"`
	// HostPath is the path in the host that will be mounted inside
	// the pod.
	HostPath string `json:"hostPath"`
	// MountPath is the path inside the pod where hostPath will be mounted.
	MountPath string `json:"mountPath"`
	// Writable controls write access to the volume
	Writable bool `json:"writable,omitempty"`
	// PathType is the type of the HostPath.
	PathType v1.HostPathType `json:"pathType,omitempty"`
}

HostPathMount contains elements describing volumes that are mounted from the host.

func (*HostPathMount) DeepCopy 

func (in *HostPathMount) DeepCopy() *HostPathMount

DeepCopy is an autogenerated deepcopy function, copying the receiver, creating a new HostPathMount.

func (*HostPathMount) DeepCopyInto 

func (in *HostPathMount) DeepCopyInto(out *HostPathMount)

DeepCopyInto is an autogenerated deepcopy function, copying the receiver, writing into out. in must be non-nil.

type InitConfiguration 

type InitConfiguration struct {
	metav1.TypeMeta `json:",inline"`

	// ClusterConfiguration holds the cluster-wide information, and embeds that struct (which can be (un)marshalled separately as well)
	// When InitConfiguration is marshalled to bytes in the external version, this information IS NOT preserved (which can be seen from
	// the `json:"-"` tag. This is due to that when InitConfiguration is (un)marshalled, it turns into two YAML documents, one for the
	// InitConfiguration and ClusterConfiguration. Hence, the information must not be duplicated, and is therefore omitted here.
	ClusterConfiguration `json:"-"`

	// BootstrapTokens is respected at `kubeadm init` time and describes a set of Bootstrap Tokens to create.
	// This information IS NOT uploaded to the kubeadm cluster configmap, partly because of its sensitive nature
	BootstrapTokens []BootstrapToken `json:"bootstrapTokens,omitempty"`

	// NodeRegistration holds fields that relate to registering the new control-plane node to the cluster
	NodeRegistration NodeRegistrationOptions `json:"nodeRegistration,omitempty"`

	// APIEndpoint represents the endpoint of the instance of the API server to be deployed on this node.
	APIEndpoint APIEndpoint `json:"apiEndpoint,omitempty"`
}

InitConfiguration contains a list of elements that is specific "kubeadm init"-only runtime information.

func (*InitConfiguration) DeepCopy 

func (in *InitConfiguration) DeepCopy() *InitConfiguration

DeepCopy is an autogenerated deepcopy function, copying the receiver, creating a new InitConfiguration.

func (*InitConfiguration) DeepCopyInto 

func (in *InitConfiguration) DeepCopyInto(out *InitConfiguration)

DeepCopyInto is an autogenerated deepcopy function, copying the receiver, writing into out. in must be non-nil.

func (*InitConfiguration) DeepCopyObject 

func (in *InitConfiguration) DeepCopyObject() runtime.Object

DeepCopyObject is an autogenerated deepcopy function, copying the receiver, creating a new runtime.Object.

type JoinConfiguration 

type JoinConfiguration struct {
	metav1.TypeMeta `json:",inline"`

	// NodeRegistration holds fields that relate to registering the new control-plane node to the cluster
	NodeRegistration NodeRegistrationOptions `json:"nodeRegistration"`

	// CACertPath is the path to the SSL certificate authority used to
	// secure comunications between node and control-plane.
	// Defaults to "/etc/kubernetes/pki/ca.crt".
	CACertPath string `json:"caCertPath"`
	// DiscoveryFile is a file or url to a kubeconfig file from which to
	// load cluster information.
	DiscoveryFile string `json:"discoveryFile"`
	// DiscoveryToken is a token used to validate cluster information
	// fetched from the control-plane.
	DiscoveryToken string `json:"discoveryToken"`
	// DiscoveryTokenAPIServers is a set of IPs to API servers from which info
	// will be fetched. Currently we only pay attention to one API server but
	// hope to support >1 in the future.
	DiscoveryTokenAPIServers []string `json:"discoveryTokenAPIServers,omitempty"`
	// DiscoveryTimeout modifies the discovery timeout
	DiscoveryTimeout *metav1.Duration `json:"discoveryTimeout,omitempty"`
	// TLSBootstrapToken is a token used for TLS bootstrapping.
	// Defaults to Token.
	TLSBootstrapToken string `json:"tlsBootstrapToken"`
	// Token is used for both discovery and TLS bootstrapping.
	Token string `json:"token"`

	// ClusterName is the name for the cluster in kubeconfig.
	ClusterName string `json:"clusterName,omitempty"`

	// DiscoveryTokenCACertHashes specifies a set of public key pins to verify
	// when token-based discovery is used. The root CA found during discovery
	// must match one of these values. Specifying an empty set disables root CA
	// pinning, which can be unsafe. Each hash is specified as "<type>:<value>",
	// where the only currently supported type is "sha256". This is a hex-encoded
	// SHA-256 hash of the Subject Public Key Info (SPKI) object in DER-encoded
	// ASN.1. These hashes can be calculated using, for example, OpenSSL:
	// openssl x509 -pubkey -in ca.crt openssl rsa -pubin -outform der 2>&/dev/null | openssl dgst -sha256 -hex
	DiscoveryTokenCACertHashes []string `json:"discoveryTokenCACertHashes,omitempty"`

	// DiscoveryTokenUnsafeSkipCAVerification allows token-based discovery
	// without CA verification via DiscoveryTokenCACertHashes. This can weaken
	// the security of kubeadm since other nodes can impersonate the control-plane.
	DiscoveryTokenUnsafeSkipCAVerification bool `json:"discoveryTokenUnsafeSkipCAVerification"`

	// ControlPlane flag specifies that the joining node should host an additional
	// control plane instance.
	ControlPlane bool `json:"controlPlane,omitempty"`

	// APIEndpoint represents the endpoint of the instance of the API server eventually to be deployed on this node.
	APIEndpoint APIEndpoint `json:"apiEndpoint,omitempty"`

	// FeatureGates enabled by the user.
	FeatureGates map[string]bool `json:"featureGates,omitempty"`
}

JoinConfiguration contains elements describing a particular node. TODO: This struct should be replaced by dynamic kubelet configuration.

func (*JoinConfiguration) DeepCopy 

func (in *JoinConfiguration) DeepCopy() *JoinConfiguration

DeepCopy is an autogenerated deepcopy function, copying the receiver, creating a new JoinConfiguration.

func (*JoinConfiguration) DeepCopyInto 

func (in *JoinConfiguration) DeepCopyInto(out *JoinConfiguration)

DeepCopyInto is an autogenerated deepcopy function, copying the receiver, writing into out. in must be non-nil.

func (*JoinConfiguration) DeepCopyObject 

func (in *JoinConfiguration) DeepCopyObject() runtime.Object

DeepCopyObject is an autogenerated deepcopy function, copying the receiver, creating a new runtime.Object.

type LocalEtcd 

type LocalEtcd struct {

	// Image specifies which container image to use for running etcd.
	// If empty, automatically populated by kubeadm using the image
	// repository and default etcd version.
	Image string `json:"image"`

	// DataDir is the directory etcd will place its data.
	// Defaults to "/var/lib/etcd".
	DataDir string `json:"dataDir"`

	// ExtraArgs are extra arguments provided to the etcd binary
	// when run inside a static pod.
	ExtraArgs map[string]string `json:"extraArgs,omitempty"`

	// ServerCertSANs sets extra Subject Alternative Names for the etcd server signing cert.
	ServerCertSANs []string `json:"serverCertSANs,omitempty"`
	// PeerCertSANs sets extra Subject Alternative Names for the etcd peer signing cert.
	PeerCertSANs []string `json:"peerCertSANs,omitempty"`
}

LocalEtcd describes that kubeadm should run an etcd cluster locally

func (*LocalEtcd) DeepCopy 

func (in *LocalEtcd) DeepCopy() *LocalEtcd

DeepCopy is an autogenerated deepcopy function, copying the receiver, creating a new LocalEtcd.

func (*LocalEtcd) DeepCopyInto 

func (in *LocalEtcd) DeepCopyInto(out *LocalEtcd)

DeepCopyInto is an autogenerated deepcopy function, copying the receiver, writing into out. in must be non-nil.

type Networking 

type Networking struct {
	// ServiceSubnet is the subnet used by k8s services. Defaults to "10.96.0.0/12".
	ServiceSubnet string `json:"serviceSubnet"`
	// PodSubnet is the subnet used by pods.
	PodSubnet string `json:"podSubnet"`
	// DNSDomain is the dns domain used by k8s services. Defaults to "cluster.local".
	DNSDomain string `json:"dnsDomain"`
}

Networking contains elements describing cluster's networking configuration

func (*Networking) DeepCopy 

func (in *Networking) DeepCopy() *Networking

DeepCopy is an autogenerated deepcopy function, copying the receiver, creating a new Networking.

func (*Networking) DeepCopyInto 

func (in *Networking) DeepCopyInto(out *Networking)

DeepCopyInto is an autogenerated deepcopy function, copying the receiver, writing into out. in must be non-nil.

type NodeRegistrationOptions 

type NodeRegistrationOptions struct {

	// Name is the `.Metadata.Name` field of the Node API object that will be created in this `kubeadm init` or `kubeadm join` operation.
	// This field is also used in the CommonName field of the kubelet's client certificate to the API server.
	// Defaults to the hostname of the node if not provided.
	Name string `json:"name,omitempty"`

	// CRISocket is used to retrieve container runtime info. This information will be annotated to the Node API object, for later re-use
	CRISocket string `json:"criSocket,omitempty"`

	// Taints specifies the taints the Node API object should be registered with. If this field is unset, i.e. nil, in the `kubeadm init` process
	// it will be defaulted to []v1.Taint{'node-role.kubernetes.io/master=""'}. If you don't want to taint your control-plane node, set this field to an
	// empty slice, i.e. `taints: {}` in the YAML file. This field is solely used for Node registration.
	Taints []v1.Taint `json:"taints,omitempty"`

	// KubeletExtraArgs passes through extra arguments to the kubelet. The arguments here are passed to the kubelet command line via the environment file
	// kubeadm writes at runtime for the kubelet to source. This overrides the generic base-level configuration in the kubelet-config-1.X ConfigMap
	// Flags have higher priority when parsing. These values are local and specific to the node kubeadm is executing on.
	KubeletExtraArgs map[string]string `json:"kubeletExtraArgs,omitempty"`
}

NodeRegistrationOptions holds fields that relate to registering a new control-plane or node to the cluster, either via "kubeadm init" or "kubeadm join"

func (*NodeRegistrationOptions) DeepCopy 

func (in *NodeRegistrationOptions) DeepCopy() *NodeRegistrationOptions

DeepCopy is an autogenerated deepcopy function, copying the receiver, creating a new NodeRegistrationOptions.

func (*NodeRegistrationOptions) DeepCopyInto 

func (in *NodeRegistrationOptions) DeepCopyInto(out *NodeRegistrationOptions)

DeepCopyInto is an autogenerated deepcopy function, copying the receiver, writing into out. in must be non-nil.

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