v1alpha1

type BackupBucket struct {
	metav1.TypeMeta `json:",inline"`
	// +optional
	metav1.ObjectMeta `json:"metadata,omitempty"`
	// Specification of the BackupBucket.
	// If the object's deletion timestamp is set, this field is immutable.
	Spec BackupBucketSpec `json:"spec"`
	// +optional
	Status BackupBucketStatus `json:"status"`
}

type BackupBucketList struct {
	metav1.TypeMeta `json:",inline"`
	// +optional
	metav1.ListMeta `json:"metadata,omitempty"`

	// Items is the list of BackupBucket.
	Items []BackupBucket `json:"items"`
}

type BackupBucketSpec struct {
	// DefaultSpec is a structure containing common fields used by all extension resources.
	DefaultSpec `json:",inline"`
	// Region is the region of this bucket. This field is immutable.
	Region string `json:"region"`
	// SecretRef is a reference to a secret that contains the credentials to access object store.
	SecretRef corev1.SecretReference `json:"secretRef"`
}

type BackupBucketStatus struct {
	// DefaultStatus is a structure containing common fields used by all extension resources.
	DefaultStatus `json:",inline"`
	// GeneratedSecretRef is reference to the secret generated by backup bucket, which
	// will have object store specific credentials.
	// +optional
	GeneratedSecretRef *corev1.SecretReference `json:"generatedSecretRef,omitempty"`
}

type BackupEntry struct {
	metav1.TypeMeta `json:",inline"`
	// +optional
	metav1.ObjectMeta `json:"metadata,omitempty"`
	// Specification of the BackupEntry.
	// If the object's deletion timestamp is set, this field is immutable.
	Spec BackupEntrySpec `json:"spec"`
	// +optional
	Status BackupEntryStatus `json:"status"`
}

type BackupEntryList struct {
	metav1.TypeMeta `json:",inline"`
	// +optional
	metav1.ListMeta `json:"metadata,omitempty"`

	// Items is the list of BackupEntry.
	Items []BackupEntry `json:"items"`
}

type BackupEntrySpec struct {
	// DefaultSpec is a structure containing common fields used by all extension resources.
	DefaultSpec `json:",inline"`
	// BackupBucketProviderStatus contains the provider status that has
	// been generated by the controller responsible for the `BackupBucket` resource.
	// +kubebuilder:validation:XPreserveUnknownFields
	// +kubebuilder:pruning:PreserveUnknownFields
	// +optional
	BackupBucketProviderStatus *runtime.RawExtension `json:"backupBucketProviderStatus,omitempty"`
	// Region is the region of this Entry. This field is immutable.
	Region string `json:"region"`
	// BucketName is the name of backup bucket for this Backup Entry.
	BucketName string `json:"bucketName"`
	// SecretRef is a reference to a secret that contains the credentials to access object store.
	SecretRef corev1.SecretReference `json:"secretRef"`
}

type BackupEntryStatus struct {
	// DefaultStatus is a structure containing common fields used by all extension resources.
	DefaultStatus `json:",inline"`
}

type Bastion struct {
	metav1.TypeMeta `json:",inline"`
	// +optional
	metav1.ObjectMeta `json:"metadata,omitempty"`
	// Spec is the specification of this Bastion.
	// If the object's deletion timestamp is set, this field is immutable.
	Spec BastionSpec `json:"spec"`
	// Status is the bastion's status.
	// +optional
	Status BastionStatus `json:"status,omitempty"`
}

type BastionIngressPolicy struct {
	// IPBlock defines an IP block that is allowed to access the bastion.
	IPBlock networkingv1.IPBlock `json:"ipBlock"`
}

type BastionList struct {
	metav1.TypeMeta
	// Standard list object metadata.
	metav1.ListMeta
	// Items is the list of Bastions.
	Items []Bastion
}

type BastionSpec struct {
	// DefaultSpec is a structure containing common fields used by all extension resources.
	DefaultSpec `json:",inline"`
	// UserData is the base64-encoded user data for the bastion instance. This should
	// contain code to provision the SSH key on the bastion instance.
	// This field is immutable.
	UserData []byte `json:"userData"`
	// Ingress controls from where the created bastion host should be reachable.
	Ingress []BastionIngressPolicy `json:"ingress"`
}

type BastionStatus struct {
	// DefaultStatus is a structure containing common fields used by all extension resources.
	DefaultStatus `json:",inline"`
	// Ingress is the external IP and/or hostname of the bastion host.
	// +optional
	Ingress *corev1.LoadBalancerIngress `json:"ingress,omitempty"`
}

type CRIConfig struct {
	// Name is a mandatory string containing the name of the CRI library. Supported values are `containerd`.
	// +kubebuilder:validation:XValidation:rule="self == oldSelf",message="Value is immutable"
	// +kubebuilder:validation:Enum="containerd"
	Name CRIName `json:"name"`
	// CgroupDriver configures the CRI's cgroup driver. Supported values are `cgroupfs` or `systemd`.
	// +optional
	CgroupDriver *CgroupDriverName `json:"cgroupDriver,omitempty"`
	// ContainerdConfig is the containerd configuration.
	// Only to be set for OperatingSystemConfigs with purpose 'reconcile'.
	// +optional
	Containerd *ContainerdConfig `json:"containerd,omitempty"`
}

type CRIName string

type CgroupDriverName string

type CloudConfig struct {
	// SecretRef is a reference to a secret that contains the actual result of the generated cloud config.
	SecretRef corev1.SecretReference `json:"secretRef"`
}

type Cluster struct {
	metav1.TypeMeta   `json:",inline"`
	metav1.ObjectMeta `json:"metadata,omitempty"`

	Spec ClusterSpec `json:"spec"`
}

type ClusterAutoscalerOptions struct {
	// ScaleDownUtilizationThreshold defines the threshold in fraction (0.0 - 1.0) under which a node is being removed.
	// +optional
	ScaleDownUtilizationThreshold *string `json:"scaleDownUtilizationThreshold,omitempty"`
	// ScaleDownGpuUtilizationThreshold defines the threshold in fraction (0.0 - 1.0) of gpu resources under which a node is being removed.
	// +optional
	ScaleDownGpuUtilizationThreshold *string `json:"scaleDownGpuUtilizationThreshold,omitempty"`
	// ScaleDownUnneededTime defines how long a node should be unneeded before it is eligible for scale down.
	// +optional
	ScaleDownUnneededTime *metav1.Duration `json:"scaleDownUnneededTime,omitempty"`
	// ScaleDownUnreadyTime defines how long an unready node should be unneeded before it is eligible for scale down.
	// +optional
	ScaleDownUnreadyTime *metav1.Duration `json:"scaleDownUnreadyTime,omitempty"`
	// MaxNodeProvisionTime defines how long cluster autoscaler should wait for a node to be provisioned.
	// +optional
	MaxNodeProvisionTime *metav1.Duration `json:"maxNodeProvisionTime,omitempty"`
}

type ClusterList struct {
	metav1.TypeMeta `json:",inline"`
	metav1.ListMeta `json:"metadata"`

	// Items is the list of Cluster.
	Items []Cluster `json:"items"`
}

type ClusterSpec struct {
	// CloudProfile is a raw extension field that contains the cloudprofile resource referenced
	// by the shoot that has to be reconciled.
	// +kubebuilder:validation:XPreserveUnknownFields
	// +kubebuilder:pruning:PreserveUnknownFields
	CloudProfile runtime.RawExtension `json:"cloudProfile"`
	// Seed is a raw extension field that contains the seed resource referenced by the shoot that
	// has to be reconciled.
	// +kubebuilder:validation:XPreserveUnknownFields
	// +kubebuilder:pruning:PreserveUnknownFields
	Seed runtime.RawExtension `json:"seed"`
	// Shoot is a raw extension field that contains the shoot resource that has to be reconciled.
	// +kubebuilder:validation:XPreserveUnknownFields
	// +kubebuilder:pruning:PreserveUnknownFields
	Shoot runtime.RawExtension `json:"shoot"`
}

type ContainerRuntime struct {
	metav1.TypeMeta `json:",inline"`
	// +optional
	metav1.ObjectMeta `json:"metadata,omitempty"`
	// Specification of the ContainerRuntime.
	// If the object's deletion timestamp is set, this field is immutable.
	Spec ContainerRuntimeSpec `json:"spec"`
	// +optional
	Status ContainerRuntimeStatus `json:"status"`
}

type ContainerRuntimeList struct {
	metav1.TypeMeta `json:",inline"`
	// +optional
	metav1.ListMeta `json:"metadata,omitempty"`

	Items []ContainerRuntime `json:"items"`
}

type ContainerRuntimeSpec struct {
	// BinaryPath is the Worker's machine path where container runtime extensions should copy the binaries to.
	BinaryPath string `json:"binaryPath"`
	// WorkerPool identifies the worker pool of the Shoot.
	// For each worker pool and type, Gardener deploys a ContainerRuntime CRD.
	WorkerPool ContainerRuntimeWorkerPool `json:"workerPool"`
	// DefaultSpec is a structure containing common fields used by all extension resources.
	DefaultSpec `json:",inline"`
}

type ContainerRuntimeStatus struct {
	// DefaultStatus is a structure containing common fields used by all extension resources.
	DefaultStatus `json:",inline"`
}

type ContainerRuntimeWorkerPool struct {
	// Name specifies the name of the worker pool the container runtime should be available for.
	// This field is immutable.
	Name string `json:"name"`
	// Selector is the label selector used by the extension to match the nodes belonging to the worker pool.
	Selector metav1.LabelSelector `json:"selector"`
}

type ContainerdConfig struct {
	// Registries configures the registry hosts for containerd.
	// +optional
	Registries []RegistryConfig `json:"registries,omitempty"`
	// SandboxImage configures the sandbox image for containerd.
	SandboxImage string `json:"sandboxImage"`
	// Plugins configures the plugins section in containerd's config.toml.
	// +optional
	Plugins []PluginConfig `json:"plugins,omitempty"`
}

type ControlPlane struct {
	metav1.TypeMeta   `json:",inline"`
	metav1.ObjectMeta `json:"metadata,omitempty"`
	// Specification of the ControlPlane.
	// If the object's deletion timestamp is set, this field is immutable.
	Spec ControlPlaneSpec `json:"spec"`
	// +optional
	Status ControlPlaneStatus `json:"status"`
}

type ControlPlaneList struct {
	metav1.TypeMeta `json:",inline"`
	metav1.ListMeta `json:"metadata"`

	// Items is the list of ControlPlanes.
	Items []ControlPlane `json:"items"`
}

type ControlPlaneSpec struct {
	// DefaultSpec is a structure containing common fields used by all extension resources.
	DefaultSpec `json:",inline"`
	// Purpose contains the data if a cloud provider needs additional components in order to expose the control plane.
	// This field is immutable.
	// +optional
	Purpose *Purpose `json:"purpose,omitempty"`
	// InfrastructureProviderStatus contains the provider status that has
	// been generated by the controller responsible for the `Infrastructure` resource.
	// +kubebuilder:validation:XPreserveUnknownFields
	// +kubebuilder:pruning:PreserveUnknownFields
	// +optional
	InfrastructureProviderStatus *runtime.RawExtension `json:"infrastructureProviderStatus,omitempty"`
	// Region is the region of this control plane. This field is immutable.
	Region string `json:"region"`
	// SecretRef is a reference to a secret that contains the cloud provider specific credentials.
	SecretRef corev1.SecretReference `json:"secretRef"`
}

type ControlPlaneStatus struct {
	// DefaultStatus is a structure containing common fields used by all extension resources.
	DefaultStatus `json:",inline"`
}

type DNSRecord struct {
	metav1.TypeMeta   `json:",inline"`
	metav1.ObjectMeta `json:"metadata,omitempty"`
	// Specification of the DNSRecord.
	// If the object's deletion timestamp is set, this field is immutable.
	Spec DNSRecordSpec `json:"spec"`
	// +optional
	Status DNSRecordStatus `json:"status"`
}

type DNSRecordList struct {
	metav1.TypeMeta `json:",inline"`
	metav1.ListMeta `json:"metadata"`

	// Items is the list of DNSRecords.
	Items []DNSRecord `json:"items"`
}

type DNSRecordSpec struct {
	// DefaultSpec is a structure containing common fields used by all extension resources.
	DefaultSpec `json:",inline"`
	// SecretRef is a reference to a secret that contains the cloud provider specific credentials.
	SecretRef corev1.SecretReference `json:"secretRef"`
	// Region is the region of this DNS record. If not specified, the region specified in SecretRef will be used.
	// If that is also not specified, the extension controller will use its default region.
	// +optional
	Region *string `json:"region,omitempty"`
	// Zone is the DNS hosted zone of this DNS record. If not specified, it will be determined automatically by
	// getting all hosted zones of the account and searching for the longest zone name that is a suffix of Name.
	// +optional
	Zone *string `json:"zone,omitempty"`
	// Name is the fully qualified domain name, e.g. "api.<shoot domain>". This field is immutable.
	Name string `json:"name"`
	// RecordType is the DNS record type. Only A, CNAME, and TXT records are currently supported. This field is immutable.
	RecordType DNSRecordType `json:"recordType"`
	// Values is a list of IP addresses for A records, a single hostname for CNAME records, or a list of texts for TXT records.
	Values []string `json:"values"`
	// TTL is the time to live in seconds. Defaults to 120.
	// +optional
	TTL *int64 `json:"ttl,omitempty"`
}

type DNSRecordStatus struct {
	// DefaultStatus is a structure containing common fields used by all extension resources.
	DefaultStatus `json:",inline"`
	// Zone is the DNS hosted zone of this DNS record.
	// +optional
	Zone *string `json:"zone,omitempty"`
}

type DNSRecordType string

type DataVolume struct {
	// Name of the volume to make it referenceable.
	Name string `json:"name"`
	// Type is the type of the volume.
	// +optional
	Type *string `json:"type,omitempty"`
	// Size is the of the root volume.
	Size string `json:"size"`
	// Encrypted determines if the volume should be encrypted.
	// +optional
	Encrypted *bool `json:"encrypted,omitempty"`
}

type DefaultSpec struct {
	// Type contains the instance of the resource's kind.
	Type string `json:"type"`
	// Class holds the extension class used to control the responsibility for multiple provider extensions.
	// +kubebuilder:validation:XValidation:rule="self == oldSelf",message="Value is immutable"
	// +optional
	Class *ExtensionClass `json:"class,omitempty"`
	// ProviderConfig is the provider specific configuration.
	// +kubebuilder:validation:XPreserveUnknownFields
	// +kubebuilder:pruning:PreserveUnknownFields
	// +optional
	ProviderConfig *runtime.RawExtension `json:"providerConfig,omitempty"`
}

type DefaultStatus struct {
	// ProviderStatus contains provider-specific status.
	// +kubebuilder:validation:XPreserveUnknownFields
	// +kubebuilder:pruning:PreserveUnknownFields
	// +optional
	ProviderStatus *runtime.RawExtension `json:"providerStatus,omitempty"`
	// Conditions represents the latest available observations of a Seed's current state.
	// +optional
	Conditions []gardencorev1beta1.Condition `json:"conditions,omitempty"`
	// LastError holds information about the last occurred error during an operation.
	// +optional
	LastError *gardencorev1beta1.LastError `json:"lastError,omitempty"`
	// LastOperation holds information about the last operation on the resource.
	// +optional
	LastOperation *gardencorev1beta1.LastOperation `json:"lastOperation,omitempty"`
	// ObservedGeneration is the most recent generation observed for this resource.
	ObservedGeneration int64 `json:"observedGeneration,omitempty"`
	// State can be filled by the operating controller with what ever data it needs.
	// +kubebuilder:validation:XPreserveUnknownFields
	// +kubebuilder:pruning:PreserveUnknownFields
	// +optional
	State *runtime.RawExtension `json:"state,omitempty"`
	// Resources holds a list of named resource references that can be referred to in the state by their names.
	// +optional
	Resources []gardencorev1beta1.NamedResourceReference `json:"resources,omitempty"`
}

type DropIn struct {
	// Name is the name of the drop-in.
	Name string `json:"name"`
	// Content is the content of the drop-in.
	Content string `json:"content"`
}

type Extension struct {
	metav1.TypeMeta `json:",inline"`
	// +optional
	metav1.ObjectMeta `json:"metadata,omitempty"`
	// Specification of the Extension.
	// If the object's deletion timestamp is set, this field is immutable.
	Spec ExtensionSpec `json:"spec"`
	// +optional
	Status ExtensionStatus `json:"status"`
}

type ExtensionClass string

type ExtensionList struct {
	metav1.TypeMeta `json:",inline"`
	// +optional
	metav1.ListMeta `json:"metadata,omitempty"`

	Items []Extension `json:"items"`
}

type ExtensionSpec struct {
	// DefaultSpec is a structure containing common fields used by all extension resources.
	DefaultSpec `json:",inline"`
}

type ExtensionStatus struct {
	// DefaultStatus is a structure containing common fields used by all extension resources.
	DefaultStatus `json:",inline"`
}

type File struct {
	// Path is the path of the file system where the file should get written to.
	Path string `json:"path"`
	// Permissions describes with which permissions the file should get written to the file system.
	// If no permissions are set, the operating system's defaults are used.
	// +optional
	Permissions *uint32 `json:"permissions,omitempty"`
	// Content describe the file's content.
	Content FileContent `json:"content"`
}

type FileCodecID string

type FileContent struct {
	// SecretRef is a struct that contains information about the referenced secret.
	// +optional
	SecretRef *FileContentSecretRef `json:"secretRef,omitempty"`
	// Inline is a struct that contains information about the inlined data.
	// +optional
	Inline *FileContentInline `json:"inline,omitempty"`
	// TransmitUnencoded set to true will ensure that the os-extension does not encode the file content when sent to the node.
	// This for example can be used to manipulate the clear-text content before it reaches the node.
	// +optional
	TransmitUnencoded *bool `json:"transmitUnencoded,omitempty"`
	// ImageRef describes a container image which contains a file.
	// +optional
	ImageRef *FileContentImageRef `json:"imageRef,omitempty"`
}

type FileContentImageRef struct {
	// Image contains the container image repository with tag.
	Image string `json:"image"`
	// FilePathInImage contains the path in the image to the file that should be extracted.
	FilePathInImage string `json:"filePathInImage"`
}

type FileContentInline struct {
	// Encoding is the file's encoding (e.g. base64).
	Encoding string `json:"encoding"`
	// Data is the file's data.
	Data string `json:"data"`
}

type FileContentSecretRef struct {
	// Name is the name of the secret.
	Name string `json:"name"`
	// DataKey is the key in the secret's `.data` field that should be read.
	DataKey string `json:"dataKey"`
}

type IPFamily string

type Infrastructure struct {
	metav1.TypeMeta `json:",inline"`
	// +optional
	metav1.ObjectMeta `json:"metadata,omitempty"`
	// Specification of the Infrastructure.
	// If the object's deletion timestamp is set, this field is immutable.
	Spec InfrastructureSpec `json:"spec"`
	// +optional
	Status InfrastructureStatus `json:"status"`
}

type InfrastructureList struct {
	metav1.TypeMeta `json:",inline"`
	// +optional
	metav1.ListMeta `json:"metadata,omitempty"`

	// Items is the list of Infrastructures.
	Items []Infrastructure `json:"items"`
}

type InfrastructureSpec struct {
	// DefaultSpec is a structure containing common fields used by all extension resources.
	DefaultSpec `json:",inline"`
	// Region is the region of this infrastructure. This field is immutable.
	Region string `json:"region"`
	// SecretRef is a reference to a secret that contains the cloud provider credentials.
	SecretRef corev1.SecretReference `json:"secretRef"`
	// SSHPublicKey is the public SSH key that should be used with this infrastructure.
	// +optional
	SSHPublicKey []byte `json:"sshPublicKey,omitempty"`
}

type InfrastructureStatus struct {
	// DefaultStatus is a structure containing common fields used by all extension resources.
	DefaultStatus `json:",inline"`
	// NodesCIDR is the CIDR of the node network that was optionally created by the acting extension controller.
	// This might be needed in environments in which the CIDR for the network for the shoot worker node cannot
	// be statically defined in the Shoot resource but must be computed dynamically.
	// +optional
	NodesCIDR *string `json:"nodesCIDR,omitempty"`
	// EgressCIDRs is a list of CIDRs used by the shoot as the source IP for egress traffic. For certain environments the egress
	// IPs may not be stable in which case the extension controller may opt to not populate this field.
	// +optional
	EgressCIDRs []string `json:"egressCIDRs,omitempty"`
	// Networking contains information about cluster networking such as CIDRs.
	// +optional
	Networking *InfrastructureStatusNetworking `json:"networking,omitempty"`
}

type InfrastructureStatusNetworking struct {
	// Pods are the CIDRs of the pod network.
	// +optional
	Pods []string `json:"pods,omitempty"`
	// Nodes are the CIDRs of the node network.
	// +optional
	Nodes []string `json:"nodes,omitempty"`
	// Services are the CIDRs of the service network.
	// +optional
	Services []string `json:"services,omitempty"`
}

type MachineDeployment struct {
	// Name is the name of the `MachineDeployment` resource.
	Name string `json:"name"`
	// Minimum is the minimum number for this machine deployment.
	Minimum int32 `json:"minimum"`
	// Maximum is the maximum number for this machine deployment.
	Maximum int32 `json:"maximum"`
	// Priority (or weight) is the importance by which this machine deployment will be scaled by cluster autoscaling.
	// +optional
	Priority *int32 `json:"priority,omitempty"`
}

type MachineImage struct {
	// Name is the logical name of the machine image.
	Name string `json:"name"`
	// Version is the version of the machine image.
	Version string `json:"version"`
}

type Network struct {
	metav1.TypeMeta `json:",inline"`
	// +optional
	metav1.ObjectMeta `json:"metadata,omitempty"`
	// Specification of the Network.
	// If the object's deletion timestamp is set, this field is immutable.
	Spec NetworkSpec `json:"spec"`
	// +optional
	Status NetworkStatus `json:"status"`
}

type NetworkList struct {
	metav1.TypeMeta `json:",inline"`
	// +optional
	metav1.ListMeta `json:"metadata,omitempty"`

	// Items is the list of Networks.
	Items []Network `json:"items"`
}

type NetworkSpec struct {
	// DefaultSpec is a structure containing common fields used by all extension resources.
	DefaultSpec `json:",inline"`
	// PodCIDR defines the CIDR that will be used for pods. This field is immutable.
	PodCIDR string `json:"podCIDR"`
	// ServiceCIDR defines the CIDR that will be used for services. This field is immutable.
	ServiceCIDR string `json:"serviceCIDR"`
	// IPFamilies specifies the IP protocol versions to use for shoot networking. This field is immutable.
	// See https://github.com/gardener/gardener/blob/master/docs/development/ipv6.md
	// +optional
	IPFamilies []IPFamily `json:"ipFamilies,omitempty"`
}

type NetworkStatus struct {
	// DefaultStatus is a structure containing common fields used by all extension resources.
	DefaultStatus `json:",inline"`
}

type NodeTemplate struct {
	// Capacity represents the expected Node capacity.
	Capacity corev1.ResourceList `json:"capacity"`
}

type Object interface {
	metav1.Object
	runtime.Object

	// GetExtensionSpec retrieves the object's spec.
	GetExtensionSpec() Spec
	// GetExtensionStatus retrieves the object's status.
	GetExtensionStatus() Status
}

type OperatingSystemConfig struct {
	metav1.TypeMeta `json:",inline"`
	// +optional
	metav1.ObjectMeta `json:"metadata,omitempty"`
	// Specification of the OperatingSystemConfig.
	// If the object's deletion timestamp is set, this field is immutable.
	Spec OperatingSystemConfigSpec `json:"spec"`
	// +optional
	Status OperatingSystemConfigStatus `json:"status"`
}

type OperatingSystemConfigList struct {
	metav1.TypeMeta `json:",inline"`
	// +optional
	metav1.ListMeta `json:"metadata,omitempty"`

	// Items is the list of OperatingSystemConfigs.
	Items []OperatingSystemConfig `json:"items"`
}

type OperatingSystemConfigPurpose string

type OperatingSystemConfigSpec struct {
	// CRI config is a structure contains configurations of the CRI library
	// +optional
	CRIConfig *CRIConfig `json:"criConfig,omitempty"`
	// DefaultSpec is a structure containing common fields used by all extension resources.
	DefaultSpec `json:",inline"`
	// Purpose describes how the result of this OperatingSystemConfig is used by Gardener. Either it
	// gets sent to the `Worker` extension controller to bootstrap a VM, or it is downloaded by the
	// gardener-node-agent already running on a bootstrapped VM.
	// This field is immutable.
	Purpose OperatingSystemConfigPurpose `json:"purpose"`
	// Units is a list of unit for the operating system configuration (usually, a systemd unit).
	// +patchMergeKey=name
	// +patchStrategy=merge
	// +optional
	Units []Unit `json:"units,omitempty" patchStrategy:"merge" patchMergeKey:"name"`
	// Files is a list of files that should get written to the host's file system.
	// +patchMergeKey=path
	// +patchStrategy=merge
	// +optional
	Files []File `json:"files,omitempty" patchStrategy:"merge" patchMergeKey:"path"`
}

type OperatingSystemConfigStatus struct {
	// DefaultStatus is a structure containing common fields used by all extension resources.
	DefaultStatus `json:",inline"`
	// ExtensionUnits is a list of additional systemd units provided by the extension.
	// +patchMergeKey=name
	// +patchStrategy=merge
	// +optional
	ExtensionUnits []Unit `json:"extensionUnits,omitempty" patchStrategy:"merge" patchMergeKey:"name"`
	// ExtensionFiles is a list of additional files provided by the extension.
	// +patchMergeKey=path
	// +patchStrategy=merge
	// +optional
	ExtensionFiles []File `json:"extensionFiles,omitempty" patchStrategy:"merge" patchMergeKey:"path"`
	// CloudConfig is a structure for containing the generated output for the given operating system
	// config spec. It contains a reference to a secret as the result may contain confidential data.
	// After Gardener v1.112, this will be only set for OperatingSystemConfigs with purpose 'provision'.
	// +optional
	CloudConfig *CloudConfig `json:"cloudConfig,omitempty"`
}

type PluginConfig struct {
	// Op is the operation for the given path. Possible values are 'add' and 'remove', defaults to 'add'.
	// +optional
	Op *PluginPathOperation `json:"op,omitempty"`
	// Path is a list of elements that construct the path in the plugins section.
	Path []string `json:"path"`
	// Values are the values configured at the given path. If defined, it is expected as json format:
	// - A given json object will be put to the given path.
	// - If not configured, only the table entry to be created.
	// +optional
	Values *apiextensionsv1.JSON `json:"values,omitempty"`
}

type PluginPathOperation string

type Purpose string

type RegistryCapability string

type RegistryConfig struct {
	// Upstream is the upstream name of the registry.
	Upstream string `json:"upstream"`
	// Server is the URL to registry server of this upstream.
	// It corresponds to the server field in the `hosts.toml` file, see https://github.com/containerd/containerd/blob/c51463010e0682f76dfdc10edc095e6596e2764b/docs/hosts.md#server-field for more information.
	// +optional
	Server *string `json:"server,omitempty"`
	// Hosts are the registry hosts.
	// It corresponds to the host fields in the `hosts.toml` file, see https://github.com/containerd/containerd/blob/c51463010e0682f76dfdc10edc095e6596e2764b/docs/hosts.md#host-fields-in-the-toml-table-format for more information.
	Hosts []RegistryHost `json:"hosts,omitempty"`
	// ReadinessProbe determines if host registry endpoints should be probed before they are added to the containerd config.
	// +optional
	ReadinessProbe *bool `json:"readinessProbe,omitempty"`
}

type RegistryHost struct {
	// URL is the endpoint address of the registry mirror.
	URL string `json:"url"`
	// Capabilities determine what operations a host is
	// capable of performing. Defaults to
	//  - pull
	//  - resolve
	Capabilities []RegistryCapability `json:"capabilities,omitempty"`
	// CACerts are paths to public key certificates used for TLS.
	CACerts []string `json:"caCerts,omitempty"`
}

type Spec interface {
	// GetExtensionType retrieves the extension type.
	GetExtensionType() string
	// GetExtensionClass retrieves the extension class.
	GetExtensionClass() *ExtensionClass
	// GetExtensionPurpose retrieves the extension purpose.
	GetExtensionPurpose() *string
	// GetProviderConfig retrieves the provider config.
	GetProviderConfig() *runtime.RawExtension
}

type Status interface {
	// GetProviderStatus retrieves the provider status.
	GetProviderStatus() *runtime.RawExtension
	// GetConditions retrieves the Conditions of a status.
	// Conditions may be nil.
	GetConditions() []gardencorev1beta1.Condition
	// SetConditions sets the Conditions of a status.
	SetConditions([]gardencorev1beta1.Condition)
	// GetLastOperation retrieves the LastOperation of a status.
	// LastOperation may be nil.
	GetLastOperation() *gardencorev1beta1.LastOperation
	// SetLastOperation sets the LastOperation of a status.
	SetLastOperation(*gardencorev1beta1.LastOperation)
	// GetObservedGeneration retrieves the last generation observed by the extension controller.
	GetObservedGeneration() int64
	// SetObservedGeneration sets the ObservedGeneration of a status.
	SetObservedGeneration(int64)
	// GetLastError retrieves the LastError of a status.
	// LastError may be nil.
	GetLastError() *gardencorev1beta1.LastError
	// SetLastError sets the LastError of a status.
	SetLastError(*gardencorev1beta1.LastError)
	// GetState retrieves the State of the extension
	GetState() *runtime.RawExtension
	// SetState sets the State of the extension
	SetState(state *runtime.RawExtension)
	// GetResources retrieves the list of named resource references referred to in the State by their names.
	GetResources() []gardencorev1beta1.NamedResourceReference
	// SetResources sets a list of named resource references in the Status, that are referred by
	// their names in the State.
	SetResources(namedResourceReferences []gardencorev1beta1.NamedResourceReference)
}

type Unit struct {
	// Name is the name of a unit.
	Name string `json:"name"`
	// Command is the unit's command.
	// +optional
	Command *UnitCommand `json:"command,omitempty"`
	// Enable describes whether the unit is enabled or not.
	// +optional
	Enable *bool `json:"enable,omitempty"`
	// Content is the unit's content.
	// +optional
	Content *string `json:"content,omitempty"`
	// DropIns is a list of drop-ins for this unit.
	// +patchMergeKey=name
	// +patchStrategy=merge
	// +optional
	DropIns []DropIn `json:"dropIns,omitempty" patchStrategy:"merge" patchMergeKey:"name"`
	// FilePaths is a list of files the unit depends on. If any file changes a restart of the dependent unit will be
	// triggered. For each FilePath there must exist a File with matching Path in OperatingSystemConfig.Spec.Files.
	FilePaths []string `json:"filePaths,omitempty"`
}

type UnitCommand string

type Volume struct {
	// Name of the volume to make it referenceable.
	// +optional
	Name *string `json:"name,omitempty"`
	// Type is the type of the volume.
	// +optional
	Type *string `json:"type,omitempty"`
	// Size is the of the root volume.
	Size string `json:"size"`
	// Encrypted determines if the volume should be encrypted.
	// +optional
	Encrypted *bool `json:"encrypted,omitempty"`
}

type Worker struct {
	metav1.TypeMeta `json:",inline"`
	// +optional
	metav1.ObjectMeta `json:"metadata,omitempty"`
	// Specification of the Worker.
	// If the object's deletion timestamp is set, this field is immutable.
	Spec WorkerSpec `json:"spec"`
	// +optional
	Status WorkerStatus `json:"status"`
}

type WorkerList struct {
	metav1.TypeMeta `json:",inline"`
	// +optional
	metav1.ListMeta `json:"metadata,omitempty"`

	// Items is the list of Worker.
	Items []Worker `json:"items"`
}

type WorkerPool struct {
	// MachineType contains information about the machine type that should be used for this worker pool.
	MachineType string `json:"machineType"`
	// Maximum is the maximum size of the worker pool.
	Maximum int32 `json:"maximum"`
	// MaxSurge is maximum number of VMs that are created during an update.
	MaxSurge intstr.IntOrString `json:"maxSurge"`
	// MaxUnavailable is the maximum number of VMs that can be unavailable during an update.
	MaxUnavailable intstr.IntOrString `json:"maxUnavailable"`
	// Annotations is a map of key/value pairs for annotations for all the `Node` objects in this worker pool.
	// +optional
	Annotations map[string]string `json:"annotations,omitempty"`
	// Labels is a map of key/value pairs for labels for all the `Node` objects in this worker pool.
	// +optional
	Labels map[string]string `json:"labels,omitempty"`
	// Taints is a list of taints for all the `Node` objects in this worker pool.
	// +optional
	Taints []corev1.Taint `json:"taints,omitempty"`
	// MachineImage contains logical information about the name and the version of the machie image that
	// should be used. The logical information must be mapped to the provider-specific information (e.g.,
	// AMIs, ...) by the provider itself.
	MachineImage MachineImage `json:"machineImage,omitempty"`
	// Minimum is the minimum size of the worker pool.
	Minimum int32 `json:"minimum"`
	// Name is the name of this worker pool.
	Name string `json:"name"`
	// NodeAgentSecretName is uniquely identifying selected aspects of the OperatingSystemConfig. If it changes, then the
	// worker pool must be rolled.
	// +optional
	NodeAgentSecretName *string `json:"nodeAgentSecretName,omitempty"`
	// ProviderConfig is a provider specific configuration for the worker pool.
	// +kubebuilder:validation:XPreserveUnknownFields
	// +kubebuilder:pruning:PreserveUnknownFields
	// +optional
	ProviderConfig *runtime.RawExtension `json:"providerConfig,omitempty"`
	// UserDataSecretRef references a Secret and a data key containing the data that is sent to the provider's APIs when
	// a new machine/VM that is part of this worker pool shall be spawned.
	UserDataSecretRef corev1.SecretKeySelector `json:"userDataSecretRef"`
	// Volume contains information about the root disks that should be used for this worker pool.
	// +optional
	Volume *Volume `json:"volume,omitempty"`
	// DataVolumes contains a list of additional worker volumes.
	// +optional
	DataVolumes []DataVolume `json:"dataVolumes,omitempty"`
	// KubeletDataVolumeName contains the name of a dataVolume that should be used for storing kubelet state.
	// +optional
	KubeletDataVolumeName *string `json:"kubeletDataVolumeName,omitempty"`
	// Zones contains information about availability zones for this worker pool.
	// +optional
	Zones []string `json:"zones,omitempty"`
	// MachineControllerManagerSettings contains configurations for different worker-pools. Eg. MachineDrainTimeout, MachineHealthTimeout.
	// +optional
	MachineControllerManagerSettings *gardencorev1beta1.MachineControllerManagerSettings `json:"machineControllerManager,omitempty"`
	// KubernetesVersion is the kubernetes version in this worker pool
	// +optional
	KubernetesVersion *string `json:"kubernetesVersion,omitempty"`
	// NodeTemplate contains resource information of the machine which is used by Cluster Autoscaler to generate nodeTemplate during scaling a nodeGroup from zero
	// +optional
	NodeTemplate *NodeTemplate `json:"nodeTemplate,omitempty"`
	// Architecture is the CPU architecture of the worker pool machines and machine image.
	// +optional
	Architecture *string `json:"architecture,omitempty"`
	// ClusterAutoscaler contains the cluster autoscaler configurations for the worker pool.
	// +optional
	ClusterAutoscaler *ClusterAutoscalerOptions `json:"clusterAutoscaler,omitempty"`
	// Priority (or weight) is the importance by which this worker pool will be scaled by cluster autoscaling.
	// +optional
	Priority *int32 `json:"priority,omitempty"`
}

type WorkerSpec struct {
	// DefaultSpec is a structure containing common fields used by all extension resources.
	DefaultSpec `json:",inline"`

	// InfrastructureProviderStatus is a raw extension field that contains the provider status that has
	// been generated by the controller responsible for the `Infrastructure` resource.
	// +kubebuilder:validation:XPreserveUnknownFields
	// +kubebuilder:pruning:PreserveUnknownFields
	// +optional
	InfrastructureProviderStatus *runtime.RawExtension `json:"infrastructureProviderStatus,omitempty"`
	// Region is the name of the region where the worker pool should be deployed to. This field is immutable.
	Region string `json:"region"`
	// SecretRef is a reference to a secret that contains the cloud provider specific credentials.
	SecretRef corev1.SecretReference `json:"secretRef"`
	// SSHPublicKey is the public SSH key that should be used with these workers.
	// +optional
	SSHPublicKey []byte `json:"sshPublicKey,omitempty"`
	// Pools is a list of worker pools.
	// +patchMergeKey=name
	// +patchStrategy=merge
	Pools []WorkerPool `json:"pools" patchStrategy:"merge" patchMergeKey:"name"`
}

type WorkerStatus struct {
	// DefaultStatus is a structure containing common fields used by all extension resources.
	DefaultStatus `json:",inline"`
	// MachineDeployments is a list of created machine deployments. It will be used to e.g. configure
	// the cluster-autoscaler properly.
	// +patchMergeKey=name
	// +patchStrategy=merge
	MachineDeployments []MachineDeployment `json:"machineDeployments,omitempty" patchStrategy:"merge" patchMergeKey:"name"`
	// MachineDeploymentsLastUpdateTime is the timestamp when the status.MachineDeployments slice was last updated.
	// +optional
	MachineDeploymentsLastUpdateTime *metav1.Time `json:"machineDeploymentsLastUpdateTime,omitempty"`
}