KubeEdge CloudCore/EdgeCore参数配置

KubeEdge配置说明

• 官方KubeEdge组件配置建议和配置APIs github.com/kubeedge/ku…
• 格式：yaml/json, 默认yaml

KubeEdge CloudCore配置

• 默认配置文件/etc/kubeedge/config/cloudcore.yaml
• 可通过--config指定配置文件启动cloudcore, 例：cloudcore --config "/<your-path-to-cloudcoreconfig>/cloudcore.yaml"
• 参数--defaultconfig和--minconfig分别生成完整和通用配置，并设置默认值

kubeedge/pkg/apis/componentconfig/cloudcore/v1alpha1/types.go

/*
Copyright 2019 The KubeEdge 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 v1alpha1

import (
	metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
	componentbaseconfig "k8s.io/component-base/config"

	metaconfig "github.com/kubeedge/kubeedge/pkg/apis/componentconfig/meta/v1alpha1"
)

// CloudCoreConfig indicates the config of cloudCore which get from cloudCore config file
type CloudCoreConfig struct {
	metav1.TypeMeta
	// KubeAPIConfig indicates the kubernetes cluster info which cloudCore will connected
	// +Required
	KubeAPIConfig *KubeAPIConfig `json:"kubeAPIConfig,omitempty"`
	// Modules indicates cloudCore modules config
	// +Required
	Modules *Modules `json:"modules,omitempty"`
	// Configuration for LeaderElection
	LeaderElection *componentbaseconfig.LeaderElectionConfiguration `json:"leaderelection,omitempty"`
}

// KubeAPIConfig indicates the configuration for interacting with k8s server
type KubeAPIConfig struct {
	// Master indicates the address of the Kubernetes API server (overrides any value in KubeConfig)
	// such as https://127.0.0.1:8443
	// default ""
	// Note: Can not use "omitempty" option,  It will affect the output of the default configuration file
	Master string `json:"master"`
	// ContentType indicates the ContentType of message transmission when interacting with k8s
	// default application/vnd.kubernetes.protobuf
	ContentType string `json:"contentType,omitempty"`
	// QPS to while talking with kubernetes apiserve
	// default 100
	QPS int32 `json:"qps,omitempty"`
	// Burst to use while talking with kubernetes apiserver
	// default 200
	Burst int32 `json:"burst,omitempty"`
	// KubeConfig indicates the path to kubeConfig file with authorization and master location information.
	// default "/root/.kube/config"
	// +Required
	KubeConfig string `json:"kubeConfig"`
}

// Modules indicates the modules of CloudCore will be use
type Modules struct {
	// CloudHub indicates CloudHub module config
	CloudHub *CloudHub `json:"cloudHub,omitempty"`
	// EdgeController indicates EdgeController module config
	EdgeController *EdgeController `json:"edgeController,omitempty"`
	// DeviceController indicates DeviceController module config
	DeviceController *DeviceController `json:"deviceController,omitempty"`
	// SyncController indicates SyncController module config
	SyncController *SyncController `json:"syncController,omitempty"`
	// CloudStream indicates cloudstream module config
	CloudStream *CloudStream `json:"cloudStream,omitempty"`
}

// CloudHub indicates the config of CloudHub module.
// CloudHub is a web socket or quic server responsible for watching changes at the cloud side,
// caching and sending messages to EdgeHub.
type CloudHub struct {
	// Enable indicates whether CloudHub is enabled, if set to false (for debugging etc.),
	// skip checking other CloudHub configs.
	// default true
	Enable bool `json:"enable,omitempty"`
	// KeepaliveInterval indicates keep-alive interval (second)
	// default 30
	KeepaliveInterval int32 `json:"keepaliveInterval,omitempty"`
	// NodeLimit indicates node limit
	// default 10
	NodeLimit int32 `json:"nodeLimit,omitempty"`
	// TLSCAFile indicates ca file path
	// default "/etc/kubeedge/ca/rootCA.crt"
	TLSCAFile string `json:"tlsCAFile,omitempty"`
	// TLSCAKeyFile indicates caKey file path
	// default "/etc/kubeedge/ca/rootCA.key"
	TLSCAKeyFile string `json:"tlsCAKeyFile,omitempty"`
	// TLSPrivateKeyFile indicates key file path
	// default "/etc/kubeedge/certs/server.crt"
	TLSCertFile string `json:"tlsCertFile,omitempty"`
	// TLSPrivateKeyFile indicates key file path
	// default "/etc/kubeedge/certs/server.key"
	TLSPrivateKeyFile string `json:"tlsPrivateKeyFile,omitempty"`
	// WriteTimeout indicates write time (second)
	// default 30
	WriteTimeout int32 `json:"writeTimeout,omitempty"`
	// Quic indicates quic server info
	Quic *CloudHubQUIC `json:"quic,omitempty"`
	// UnixSocket set unixsocket server info
	UnixSocket *CloudHubUnixSocket `json:"unixsocket,omitempty"`
	// WebSocket indicates websocket server info
	// +Required
	WebSocket *CloudHubWebSocket `json:"websocket,omitempty"`
	// HTTPS indicates https server info
	// +Required
	HTTPS *CloudHubHTTPS `json:"https,omitempty"`
	// AdvertiseAddress sets the IP address for the cloudcore to advertise.
	AdvertiseAddress []string `json:"advertiseAddress,omitempty"`
}

// CloudHubQUIC indicates the quic server config
type CloudHubQUIC struct {
	// Enable indicates whether enable quic protocol
	// default false
	Enable bool `json:"enable,omitempty"`
	// Address set server ip address
	// default 0.0.0.0
	Address string `json:"address,omitempty"`
	// Port set open port for quic server
	// default 10001
	Port uint32 `json:"port,omitempty"`
	// MaxIncomingStreams set the max incoming stream for quic server
	// default 10000
	MaxIncomingStreams int32 `json:"maxIncomingStreams,omitempty"`
}

// CloudHubUnixSocket indicates the unix socket config
type CloudHubUnixSocket struct {
	// Enable indicates whether enable unix domain socket protocol
	// default true
	Enable bool `json:"enable,omitempty"`
	// Address indicates unix domain socket address
	// default "unix:///var/lib/kubeedge/kubeedge.sock"
	Address string `json:"address,omitempty"`
}

// CloudHubWebSocket indicates the websocket config of CloudHub
type CloudHubWebSocket struct {
	// Enable indicates whether enable websocket protocol
	// default true
	Enable bool `json:"enable,omitempty"`
	// Address indicates server ip address
	// default 0.0.0.0
	Address string `json:"address,omitempty"`
	// Port indicates the open port for websocket server
	// default 10000
	Port uint32 `json:"port,omitempty"`
}

// CloudHubHttps indicates the http config of CloudHub
type CloudHubHTTPS struct {
	// Enable indicates whether enable Https protocol
	// default true
	Enable bool `json:"enable,omitempty"`
	// Address indicates server ip address
	// default 0.0.0.0
	Address string `json:"address,omitempty"`
	// Port indicates the open port for HTTPS server
	// default 10002
	Port uint32 `json:"port,omitempty"`
}

// EdgeController indicates the config of EdgeController module
type EdgeController struct {
	// Enable indicates whether EdgeController is enabled,
	// if set to false (for debugging etc.), skip checking other EdgeController configs.
	// default true
	Enable bool `json:"enable,omitempty"`
	// NodeUpdateFrequency indicates node update frequency (second)
	// default 10
	NodeUpdateFrequency int32 `json:"nodeUpdateFrequency,omitempty"`
	// Buffer indicates k8s resource buffer
	Buffer *EdgeControllerBuffer `json:"buffer,omitempty"`
	// Context indicates send,receive,response modules for EdgeController module
	Context *EdgeControllerContext `json:"context,omitempty"`
	// Load indicates EdgeController load
	Load *EdgeControllerLoad `json:"load,omitempty"`
}

// EdgeControllerBuffer indicates the EdgeController buffer
type EdgeControllerBuffer struct {
	// UpdatePodStatus indicates the buffer of pod status
	// default 1024
	UpdatePodStatus int32 `json:"updatePodStatus,omitempty"`
	// UpdateNodeStatus indicates the buffer of update node status
	// default 1024
	UpdateNodeStatus int32 `json:"updateNodeStatus,omitempty"`
	// QueryConfigMap indicates the buffer of query configMap
	// default 1024
	QueryConfigMap int32 `json:"queryConfigMap,omitempty"`
	// QuerySecret indicates the buffer of query secret
	// default 1024
	QuerySecret int32 `json:"querySecret,omitempty"`
	// QueryService indicates the buffer of query service
	// default 1024
	QueryService int32 `json:"queryService,omitempty"`
	// QueryEndpoints indicates the buffer of query endpoint
	// default 1024
	QueryEndpoints int32 `json:"queryEndpoints,omitempty"`
	// PodEvent indicates the buffer of pod event
	// default 1
	PodEvent int32 `json:"podEvent,omitempty"`
	// ConfigMapEvent indicates the buffer of configMap event
	// default 1
	ConfigMapEvent int32 `json:"configMapEvent,omitempty"`
	// SecretEvent indicates the buffer of secret event
	// default 1
	SecretEvent int32 `json:"secretEvent,omitempty"`
	// ServiceEvent indicates the buffer of service event
	// default 1
	ServiceEvent int32 `json:"serviceEvent,omitempty"`
	// EndpointsEvent indicates the buffer of endpoint event
	// default 1
	EndpointsEvent int32 `json:"endpointsEvent,omitempty"`
	// QueryPersistentVolume indicates the buffer of query persistent volume
	// default 1024
	QueryPersistentVolume int32 `json:"queryPersistentVolume,omitempty"`
	// QueryPersistentVolumeClaim indicates the buffer of query persistent volume claim
	// default 1024
	QueryPersistentVolumeClaim int32 `json:"queryPersistentVolumeClaim,omitempty"`
	// QueryVolumeAttachment indicates the buffer of query volume attachment
	// default 1024
	QueryVolumeAttachment int32 `json:"queryVolumeAttachment,omitempty"`
	// QueryNode indicates the buffer of query node
	// default 1024
	QueryNode int32 `json:"queryNode,omitempty"`
	// UpdateNode indicates the buffer of update node
	// default 1024
	UpdateNode int32 `json:"updateNode,omitempty"`
	// DeletePod indicates the buffer of delete pod message from edge
	// default 1024
	DeletePod int32 `json:"deletePod,omitempty"`
}

// EdgeControllerContext indicates the EdgeController context
type EdgeControllerContext struct {
	// SendModule indicates which module will send message to
	SendModule metaconfig.ModuleName `json:"sendModule,omitempty"`
	// ReceiveModule indicates which module will receive message from
	ReceiveModule metaconfig.ModuleName `json:"receiveModule,omitempty"`
	// ResponseModule indicates which module will response message to
	ResponseModule metaconfig.ModuleName `json:"responseModule,omitempty"`
}

// EdgeControllerLoad indicates the EdgeController load
type EdgeControllerLoad struct {
	// UpdatePodStatusWorkers indicates the load of update pod status workers
	// default 1
	UpdatePodStatusWorkers int32 `json:"updatePodStatusWorkers,omitempty"`
	// UpdateNodeStatusWorkers indicates the load of update node status workers
	// default 1
	UpdateNodeStatusWorkers int32 `json:"updateNodeStatusWorkers,omitempty"`
	// QueryConfigMapWorkers indicates the load of query config map workers
	// default 1
	QueryConfigMapWorkers int32 `json:"queryConfigMapWorkers,omitempty"`
	// QuerySecretWorkers indicates the load of query secret workers
	// default 4
	QuerySecretWorkers int32 `json:"querySecretWorkers,omitempty"`
	// QueryServiceWorkers indicates the load of query service workers
	// default 4
	QueryServiceWorkers int32 `json:"queryServiceWorkers,omitempty"`
	// QueryEndpointsWorkers indicates the load of query endpoint workers
	// default 4
	QueryEndpointsWorkers int32 `json:"queryEndpointsWorkers,omitempty"`
	// QueryPersistentVolumeWorkers indicates the load of query persistent volume workers
	// default 4
	QueryPersistentVolumeWorkers int32 `json:"queryPersistentVolumeWorkers,omitempty"`
	// QueryPersistentVolumeClaimWorkers indicates the load of query persistent volume claim workers
	// default 4
	QueryPersistentVolumeClaimWorkers int32 `json:"queryPersistentVolumeClaimWorkers,omitempty"`
	// QueryVolumeAttachmentWorkers indicates the load of query volume attachment workers
	// default 4
	QueryVolumeAttachmentWorkers int32 `json:"queryVolumeAttachmentWorkers,omitempty"`
	// QueryNodeWorkers indicates the load of query node workers
	// default 4
	QueryNodeWorkers int32 `json:"queryNodeWorkers,omitempty"`
	// UpdateNodeWorkers indicates the load of update node workers
	// default 4
	UpdateNodeWorkers int32 `json:"updateNodeWorkers,omitempty"`
	// DeletePodWorkers indicates the load of delete pod workers
	// default 4
	DeletePodWorkers int32 `json:"deletePodWorkers,omitempty"`
}

// DeviceController indicates the device controller
type DeviceController struct {
	// Enable indicates whether deviceController is enabled,
	// if set to false (for debugging etc.), skip checking other deviceController configs.
	// default true
	Enable bool `json:"enable,omitempty"`
	// Context indicates send,receive,response modules for deviceController module
	Context *DeviceControllerContext `json:"context,omitempty"`
	// Buffer indicates Device controller buffer
	Buffer *DeviceControllerBuffer `json:"buffer,omitempty"`
	// Load indicates DeviceController Load
	Load *DeviceControllerLoad `json:"load,omitempty"`
}

// DeviceControllerContext indicates the device controller context
type DeviceControllerContext struct {
	// SendModule indicates which module will send message to
	SendModule metaconfig.ModuleName `json:"sendModule,omitempty"`
	// ReceiveModule indicates which module will receive message from
	ReceiveModule metaconfig.ModuleName `json:"receiveModule,omitempty"`
	// ResponseModule indicates which module will response message to
	ResponseModule metaconfig.ModuleName `json:"responseModule,omitempty"`
}

// DeviceControllerBuffer indicates deviceController buffer
type DeviceControllerBuffer struct {
	// UpdateDeviceStatus indicates the buffer of update device status
	// default 1024
	UpdateDeviceStatus int32 `json:"updateDeviceStatus,omitempty"`
	// DeviceEvent indicates the buffer of device event
	// default 1
	DeviceEvent int32 `json:"deviceEvent,omitempty"`
	// DeviceModelEvent indicates the buffer of device model event
	// default 1
	DeviceModelEvent int32 `json:"deviceModelEvent,omitempty"`
}

// DeviceControllerLoad indicates the deviceController load
type DeviceControllerLoad struct {
	// UpdateDeviceStatusWorkers indicates the load of update device status workers
	// default 1
	UpdateDeviceStatusWorkers int32 `json:"updateDeviceStatusWorkers,omitempty"`
}

// SyncController indicates the sync controller
type SyncController struct {
	// Enable indicates whether syncController is enabled,
	// if set to false (for debugging etc.), skip checking other syncController configs.
	// default true
	Enable bool `json:"enable,omitempty"`
}

// CloudSream indicates the stream controller
type CloudStream struct {
	// Enable indicates whether cloudstream is enabled, if set to false (for debugging etc.), skip checking other configs.
	// default true
	Enable bool `json:"enable"`

	// TLSTunnelCAFile indicates ca file path
	// default /etc/kubeedge/ca/rootCA.crt
	TLSTunnelCAFile string `json:"tlsTunnelCAFile,omitempty"`
	// TLSTunnelCertFile indicates cert file path
	// default /etc/kubeedge/certs/edge.crt
	TLSTunnelCertFile string `json:"tlsTunnelCertFile,omitempty"`
	// TLSTunnelPrivateKeyFile indicates key file path
	// default /etc/kubeedge/certs/edge.key
	TLSTunnelPrivateKeyFile string `json:"tlsTunnelPrivateKeyFile,omitempty"`
	// TunnelPort set open port for tunnel server
	// default 10004
	TunnelPort uint32 `json:"tunnelPort,omitempty"`

	// TLSStreamCAFile indicates kube-apiserver ca file path
	// default /etc/kubeedge/ca/streamCA.crt
	TLSStreamCAFile string `json:"tlsStreamCAFile,omitempty"`
	// TLSStreamCertFile indicates cert file path
	// default /etc/kubeedge/certs/stream.crt
	TLSStreamCertFile string `json:"tlsStreamCertFile,omitempty"`
	// TLSStreamPrivateKeyFile indicates key file path
	// default /etc/kubeedge/certs/stream.key
	TLSStreamPrivateKeyFile string `json:"tlsStreamPrivateKeyFile,omitempty"`
	// StreamPort set open port for stream server
	// default 10003
	StreamPort uint32 `json:"streamPort,omitempty"`
}

KubeEdge EdgeCore配置

• 默认配置文件/etc/kubeedge/config/edgecore.yaml
• 可通过--config指定配置文件启动edgecore, 例：edgecore --config "//edgecore.yaml"
• 参数--defaultconfig和--minconfig分别生成完整和通用配置，并设置默认值

kubeedge/pkg/apis/componentconfig/edgecore/v1alpha1/types.go

/*
Copyright 2019 The KubeEdge 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 v1alpha1

import (
	"time"

	metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"

	metaconfig "github.com/kubeedge/kubeedge/pkg/apis/componentconfig/meta/v1alpha1"
)

const (
	EdgeMeshDefaultLoadBalanceStrategy = "RoundRobin"
	EdgeMeshDefaultInterface           = "docker0"
	EdgeMeshDefaultSubNet              = "9.251.0.0/16"
	EdgeMeshDefaultListenPort          = 40001
)

const (
	MqttModeInternal MqttMode = 0
	MqttModeBoth     MqttMode = 1
	MqttModeExternal MqttMode = 2
)

const (
	CGroupDriverCGroupFS = "cgroupfs"
	CGroupDriverSystemd  = "systemd"
)

const (
	// DataBaseDriverName is sqlite3
	DataBaseDriverName = "sqlite3"
	// DataBaseAliasName is default
	DataBaseAliasName = "default"
	// DataBaseDataSource is edge.db
	DataBaseDataSource = "/var/lib/kubeedge/edgecore.db"
)

type ProtocolName string
type MqttMode int

// EdgeCoreConfig indicates the EdgeCore config which read from EdgeCore config file
type EdgeCoreConfig struct {
	metav1.TypeMeta
	// DataBase indicates database info
	// +Required
	DataBase *DataBase `json:"database,omitempty"`
	// Modules indicates EdgeCore modules config
	// +Required
	Modules *Modules `json:"modules,omitempty"`
}

// DataBase indicates the database info
type DataBase struct {
	// DriverName indicates database driver name
	// default "sqlite3"
	DriverName string `json:"driverName,omitempty"`
	// AliasName indicates alias name
	// default "default"
	AliasName string `json:"aliasName,omitempty"`
	// DataSource indicates the data source path
	// default "/var/lib/kubeedge/edge.db"
	DataSource string `json:"dataSource,omitempty"`
}

// Modules indicates the modules which edgeCore will be used
type Modules struct {
	// Edged indicates edged module config
	// +Required
	Edged *Edged `json:"edged,omitempty"`
	// EdgeHub indicates edgeHub module config
	// +Required
	EdgeHub *EdgeHub `json:"edgeHub,omitempty"`
	// EventBus indicates eventBus config for edgeCore
	// +Required
	EventBus *EventBus `json:"eventBus,omitempty"`
	// MetaManager indicates meta module config
	// +Required
	MetaManager *MetaManager `json:"metaManager,omitempty"`
	// ServiceBus indicates serviceBus module config
	ServiceBus *ServiceBus `json:"serviceBus,omitempty"`
	// DeviceTwin indicates deviceTwin module config
	DeviceTwin *DeviceTwin `json:"deviceTwin,omitempty"`
	// DBTest indicates dbTest module config
	DBTest *DBTest `json:"dbTest,omitempty"`
	// EdgeMesh indicates edgeMesh module config
	// +Required
	EdgeMesh *EdgeMesh `json:"edgeMesh,omitempty"`
	// EdgeStream indicates edgestream module config
	// +Required
	EdgeStream *EdgeStream `json:"edgeStream,omitempty"`
}

// Edged indicates the config fo edged module
// edged is lighted-kubelet
type Edged struct {
	// Enable indicates whether edged is enabled,
	// if set to false (for debugging etc.), skip checking other edged configs.
	// default true
	Enable bool `json:"enable,omitempty"`
	// NodeStatusUpdateFrequency indicates node status update frequency (second)
	// default 10
	NodeStatusUpdateFrequency int32 `json:"nodeStatusUpdateFrequency,omitempty"`
	// RuntimeType indicates cri runtime ,support: docker, remote
	// default "docker"
	RuntimeType string `json:"runtimeType,omitempty"`
	// DockerAddress indicates docker server address
	// default "unix:///var/run/docker.sock"
	DockerAddress string `json:"dockerAddress,omitempty"`
	// RemoteRuntimeEndpoint indicates remote runtime endpoint
	// default "unix:///var/run/dockershim.sock"
	RemoteRuntimeEndpoint string `json:"remoteRuntimeEndpoint,omitempty"`
	// RemoteImageEndpoint indicates remote image endpoint
	// default "unix:///var/run/dockershim.sock"
	RemoteImageEndpoint string `json:"remoteImageEndpoint,omitempty"`
	// NodeIP indicates current node ip
	// default get local host ip
	NodeIP string `json:"nodeIP"`
	// ClusterDNS indicates cluster dns
	// Note: Can not use "omitempty" option,  It will affect the output of the default configuration file
	// +Required
	ClusterDNS string `json:"clusterDNS"`
	// ClusterDomain indicates cluster domain
	// Note: Can not use "omitempty" option,  It will affect the output of the default configuration file
	ClusterDomain string `json:"clusterDomain"`
	// EdgedMemoryCapacity indicates memory capacity (byte)
	// default 7852396000
	EdgedMemoryCapacity int64 `json:"edgedMemoryCapacity,omitempty"`
	// PodSandboxImage is the image whose network/ipc namespaces containers in each pod will use.
	// +Required
	// kubeedge/pause:3.1 for x86 arch
	// kubeedge/pause-arm:3.1 for arm arch
	// kubeedge/pause-arm64 for arm64 arch
	// default kubeedge/pause:3.1
	PodSandboxImage string `json:"podSandboxImage,omitempty"`
	// ImagePullProgressDeadline indicates image pull progress dead line (second)
	// default 60
	ImagePullProgressDeadline int32 `json:"imagePullProgressDeadline,omitempty"`
	// RuntimeRequestTimeout indicates runtime request timeout (second)
	// default 2
	RuntimeRequestTimeout int32 `json:"runtimeRequestTimeout,omitempty"`
	// HostnameOverride indicates hostname
	// default os.Hostname()
	HostnameOverride string `json:"hostnameOverride,omitempty"`
	// RegisterNode enables automatic registration
	// default true
	RegisterNode bool `json:"registerNode,omitempty"`
	//RegisterNodeNamespace indicates register node namespace
	// default "default"
	RegisterNodeNamespace string `json:"registerNodeNamespace,omitempty"`
	// InterfaceName indicates interface name
	// default "eth0"
	InterfaceName string `json:"interfaceName,omitempty"`
	// ConcurrentConsumers indicates concurrent consumers for pod add or remove operation
	// default 5
	ConcurrentConsumers int `json:"concurrentConsumers,omitempty"`
	// DevicePluginEnabled indicates enable device plugin
	// default false
	// Note: Can not use "omitempty" option, it will affect the output of the default configuration file
	DevicePluginEnabled bool `json:"devicePluginEnabled"`
	// GPUPluginEnabled indicates enable gpu plugin
	// default false,
	// Note: Can not use "omitempty" option, it will affect the output of the default configuration file
	GPUPluginEnabled bool `json:"gpuPluginEnabled"`
	// ImageGCHighThreshold indicates image gc high threshold (percent)
	// default 80
	ImageGCHighThreshold int32 `json:"imageGCHighThreshold,omitempty"`
	// ImageGCLowThreshold indicates image gc low threshold (percent)
	// default 40
	ImageGCLowThreshold int32 `json:"imageGCLowThreshold,omitempty"`
	// MaximumDeadContainersPerPod indicates max num dead containers per pod
	// default 1
	MaximumDeadContainersPerPod int32 `json:"maximumDeadContainersPerPod,omitempty"`
	// CGroupDriver indicates container cgroup driver, support: cgroupfs, systemd
	// default "cgroupfs"
	// +Required
	CGroupDriver string `json:"cgroupDriver,omitempty"`
	// NetworkPluginName indicates the name of the network plugin to be invoked,
	// if an empty string is specified, use noop plugin
	// default ""
	NetworkPluginName string `json:"networkPluginName,omitempty"`
	// CNIConfDir indicates the full path of the directory in which to search for CNI config files
	// default "/etc/cni/net.d"
	CNIConfDir string `json:"cniConfDir,omitempty"`
	// CNIBinDir indicates a comma-separated list of full paths of directories
	// in which to search for CNI plugin binaries
	// default "/opt/cni/bin"
	CNIBinDir string `json:"cniBinDir,omitempty"`
	// CNICacheDir indicates the full path of the directory in which CNI should store cache files
	// default "/var/lib/cni/cache"
	CNICacheDir string `json:"cniCacheDirs,omitempty"`
	// NetworkPluginMTU indicates the MTU to be passed to the network plugin
	// default 1500
	NetworkPluginMTU int32 `json:"networkPluginMTU,omitempty"`
	// CgroupsPerQOS enables QoS based Cgroup hierarchy: top level cgroups for QoS Classes
	// And all Burstable and BestEffort pods are brought up under their
	// specific top level QoS cgroup.
	// Default: true
	CgroupsPerQOS bool `json:"cgroupsPerQOS"`
	// CgroupRoot is the root cgroup to use for pods.
	// If CgroupsPerQOS is enabled, this is the root of the QoS cgroup hierarchy.
	// Default: ""
	CgroupRoot string `json:"cgroupRoot"`
	// EdgeCoreCgroups is the absolute name of cgroups to isolate the edgecore in
	// Dynamic Kubelet Config (beta): This field should not be updated without a full node
	// reboot. It is safest to keep this value the same as the local config.
	// Default: ""
	EdgeCoreCgroups string `json:"edgeCoreCgroups,omitempty"`
	// systemCgroups is absolute name of cgroups in which to place
	// all non-kernel processes that are not already in a container. Empty
	// for no container. Rolling back the flag requires a reboot.
	// Dynamic Kubelet Config (beta): This field should not be updated without a full node
	// reboot. It is safest to keep this value the same as the local config.
	// Default: ""
	SystemCgroups string `json:"systemCgroups,omitempty"`
	// How frequently to calculate and cache volume disk usage for all pods
	// Dynamic Kubelet Config (beta): If dynamically updating this field, consider that
	// shortening the period may carry a performance impact.
	// Default: "1m"
	VolumeStatsAggPeriod time.Duration `json:"volumeStatsAggPeriod,omitempty"`
	// EnableMetrics indicates whether enable the metrics
	// default true
	EnableMetrics bool `json:"enableMetrics,omitempty"`
}

// EdgeHub indicates the EdgeHub module config
type EdgeHub struct {
	// Enable indicates whether EdgeHub is enabled,
	// if set to false (for debugging etc.), skip checking other EdgeHub configs.
	// default true
	Enable bool `json:"enable,omitempty"`
	// Heartbeat indicates heart beat (second)
	// default 15
	Heartbeat int32 `json:"heartbeat,omitempty"`
	// ProjectID indicates project id
	// default e632aba927ea4ac2b575ec1603d56f10
	ProjectID string `json:"projectID,omitempty"`
	// TLSCAFile set ca file path
	// default "/etc/kubeedge/ca/rootCA.crt"
	TLSCAFile string `json:"tlsCaFile,omitempty"`
	// TLSCertFile indicates the file containing x509 Certificate for HTTPS
	// default "/etc/kubeedge/certs/edge.crt"
	TLSCertFile string `json:"tlsCertFile,omitempty"`
	// TLSPrivateKeyFile indicates the file containing x509 private key matching tlsCertFile
	// default "/etc/kubeedge/certs/edge.key"
	TLSPrivateKeyFile string `json:"tlsPrivateKeyFile,omitempty"`
	// Quic indicates quic config for EdgeHub module
	// Optional if websocket is configured
	Quic *EdgeHubQUIC `json:"quic,omitempty"`
	// WebSocket indicates websocket config for EdgeHub module
	// Optional if quic is configured
	WebSocket *EdgeHubWebSocket `json:"websocket,omitempty"`
	// Token indicates the priority of joining the cluster for the edge
	Token string `json:"token"`
	// HTTPServer indicates the server for edge to apply for the certificate.
	HTTPServer string `json:"httpServer,omitempty"`
}

// EdgeHubQUIC indicates the quic client config
type EdgeHubQUIC struct {
	// Enable indicates whether enable this protocol
	// default true
	Enable bool `json:"enable,omitempty"`
	// HandshakeTimeout indicates hand shake timeout (second)
	// default 30
	HandshakeTimeout int32 `json:"handshakeTimeout,omitempty"`
	// ReadDeadline indicates read dead line (second)
	// default 15
	ReadDeadline int32 `json:"readDeadline,omitempty"`
	// Server indicates quic server address (ip:port)
	// +Required
	Server string `json:"server,omitempty"`
	// WriteDeadline indicates write dead line (second)
	// default 15
	WriteDeadline int32 `json:"writeDeadline,omitempty"`
}

// EdgeHubWebSocket indicates the websocket client config
type EdgeHubWebSocket struct {
	// Enable indicates whether enable this protocol
	// default true
	Enable bool `json:"enable,omitempty"`
	// HandshakeTimeout indicates handshake timeout (second)
	// default  30
	HandshakeTimeout int32 `json:"handshakeTimeout,omitempty"`
	// ReadDeadline indicates read dead line (second)
	// default 15
	ReadDeadline int32 `json:"readDeadline,omitempty"`
	// Server indicates websocket server address (ip:port)
	// +Required
	Server string `json:"server,omitempty"`
	// WriteDeadline indicates write dead line (second)
	// default 15
	WriteDeadline int32 `json:"writeDeadline,omitempty"`
}

// EventBus indicates the event bus module config
type EventBus struct {
	// Enable indicates whether EventBus is enabled, if set to false (for debugging etc.),
	// skip checking other EventBus configs.
	// default true
	Enable bool `json:"enable,omitempty"`
	// MqttQOS indicates mqtt qos
	// 0: QOSAtMostOnce, 1: QOSAtLeastOnce, 2: QOSExactlyOnce
	// default 0
	// Note: Can not use "omitempty" option,  It will affect the output of the default configuration file
	MqttQOS uint8 `json:"mqttQOS"`
	// MqttRetain indicates whether server will store the message and can be delivered to future subscribers,
	// if this flag set true, sever will store the message and can be delivered to future subscribers
	// default false
	// Note: Can not use "omitempty" option,  It will affect the output of the default configuration file
	MqttRetain bool `json:"mqttRetain"`
	// MqttSessionQueueSize indicates the size of how many sessions will be handled.
	// default 100
	MqttSessionQueueSize int32 `json:"mqttSessionQueueSize,omitempty"`
	// MqttServerInternal indicates internal mqtt broker url
	// default "tcp://127.0.0.1:1884"
	MqttServerInternal string `json:"mqttServerInternal,omitempty"`
	// MqttServerExternal indicates external mqtt broker url
	// default "tcp://127.0.0.1:1883"
	MqttServerExternal string `json:"mqttServerExternal,omitempty"`
	// MqttMode indicates which broker type will be choose
	// 0: internal mqtt broker enable only.
	// 1: internal and external mqtt broker enable.
	// 2: external mqtt broker enable only
	// +Required
	// default: 2
	MqttMode MqttMode `json:"mqttMode"`
}

// MetaManager indicates the MetaManager module config
type MetaManager struct {
	// Enable indicates whether MetaManager is enabled,
	// if set to false (for debugging etc.), skip checking other MetaManager configs.
	// default true
	Enable bool `json:"enable,omitempty"`
	// ContextSendGroup indicates send group
	ContextSendGroup metaconfig.GroupName `json:"contextSendGroup,omitempty"`
	// ContextSendModule indicates send module
	ContextSendModule metaconfig.ModuleName `json:"contextSendModule,omitempty"`
	// PodStatusSyncInterval indicates pod status sync
	PodStatusSyncInterval int32 `json:"podStatusSyncInterval,omitempty"`
}

// ServiceBus indicates the ServiceBus module config
type ServiceBus struct {
	// Enable indicates whether ServiceBus is enabled,
	// if set to false (for debugging etc.), skip checking other ServiceBus configs.
	// default false
	Enable bool `json:"enable"`
}

// DeviceTwin indicates the DeviceTwin module config
type DeviceTwin struct {
	// Enable indicates whether DeviceTwin is enabled,
	// if set to false (for debugging etc.), skip checking other DeviceTwin configs.
	// default true
	Enable bool `json:"enable,omitempty"`
}

// DBTest indicates the DBTest module config
type DBTest struct {
	// Enable indicates whether DBTest is enabled,
	// if set to false (for debugging etc.), skip checking other DBTest configs.
	// default false
	Enable bool `json:"enable"`
}

// EdgeMesh indicates the EdgeMesh module config
type EdgeMesh struct {
	// Enable indicates whether EdgeMesh is enabled,
	// if set to false (for debugging etc.), skip checking other EdgeMesh configs.
	// default true
	Enable bool `json:"enable,omitempty"`
	// lbStrategy indicates load balance strategy name
	LBStrategy string `json:"lbStrategy,omitempty"`
	// ListenInterface indicates the listen interface of EdgeMesh
	ListenInterface string `json:"listenInterface,omitempty"`
	// SubNet indicates the subnet of EdgeMesh
	SubNet string `json:"subNet,omitempty"`
	// ListenPort indicates the listen port of EdgeMesh
	ListenPort int `json:"listenPort,omitempty"`
}

// EdgeSream indicates the stream controller
type EdgeStream struct {
	// Enable indicates whether edgestream is enabled, if set to false (for debugging etc.), skip checking other configs.
	// default true
	Enable bool `json:"enable"`

	// TLSTunnelCAFile indicates ca file path
	// default /etc/kubeedge/ca/rootCA.crt
	TLSTunnelCAFile string `json:"tlsTunnelCAFile,omitempty"`

	// TLSTunnelCertFile indicates the file containing x509 Certificate for HTTPS
	// default /etc/kubeedge/certs/edge.crt
	TLSTunnelCertFile string `json:"tlsTunnelCertFile,omitempty"`
	// TLSTunnelPrivateKeyFile indicates the file containing x509 private key matching tlsCertFile
	// default /etc/kubeedge/certs/edge.key
	TLSTunnelPrivateKeyFile string `json:"tlsTunnelPrivateKeyFile,omitempty"`

	// HandshakeTimeout indicates handshake timeout (second)
	// default  30
	HandshakeTimeout int32 `json:"handshakeTimeout,omitempty"`
	// ReadDeadline indicates read dead line (second)
	// default 15
	ReadDeadline int32 `json:"readDeadline,omitempty"`
	// TunnelServer indicates websocket server address (ip:port)
	// +Required
	TunnelServer string `json:"server,omitempty"`
	// WriteDeadline indicates write dead line (second)
	// default 15
	WriteDeadline int32 `json:"writeDeadline,omitempty"`
}