hypervisors

Documentation

Overview

Package hypervisors returns details about list of hypervisors, shows details for a hypervisor and shows summary statistics for all hypervisors over all compute nodes in the OpenStack cloud.

Example of Show Hypervisor Details

hypervisorID := 42
hypervisor, err := hypervisors.Get(computeClient, 42).Extract()
if err != nil {
	panic(err)
}

fmt.Printf("%+v\n", hypervisor)

Example of Retrieving Details of All Hypervisors

allPages, err := hypervisors.List(computeClient).AllPages()
if err != nil {
	panic(err)
}

allHypervisors, err := hypervisors.ExtractHypervisors(allPages)
if err != nil {
	panic(err)
}

for _, hypervisor := range allHypervisors {
	fmt.Printf("%+v\n", hypervisor)
}

Example of Show Hypervisor Statistics

hypervisorsStatistics, err := hypervisors.GetStatistics(computeClient).Extract()
if err != nil {
	panic(err)
}

fmt.Printf("%+v\n", hypervisorsStatistics)

Example of Show Hypervisor Uptime

hypervisorID := 42
hypervisorUptime, err := hypervisors.GetUptime(computeClient, hypervisorID).Extract()
if err != nil {
	panic(err)
}

fmt.Printf("%+v\n", hypervisorUptime)

Index

• func List(client *golangsdk.ServiceClient) pagination.Pager
• type CPUInfo
• type Hypervisor
  • func ExtractHypervisors(p pagination.Page) ([]Hypervisor, error)
  • func (r *Hypervisor) UnmarshalJSON(b []byte) error
• type HypervisorPage
  • func (page HypervisorPage) IsEmpty() (bool, error)
• type HypervisorResult
  • func Get(client *golangsdk.ServiceClient, hypervisorID int) (r HypervisorResult)
  • func (r HypervisorResult) Extract() (*Hypervisor, error)
• type Service
• type Statistics
• type StatisticsResult
  • func GetStatistics(client *golangsdk.ServiceClient) (r StatisticsResult)
  • func (r StatisticsResult) Extract() (*Statistics, error)
• type Topology
• type Uptime
• type UptimeResult
  • func GetUptime(client *golangsdk.ServiceClient, hypervisorID int) (r UptimeResult)
  • func (r UptimeResult) Extract() (*Uptime, error)

Functions

func List

func List(client *golangsdk.ServiceClient) pagination.Pager

List makes a request against the API to list hypervisors.

Types

type CPUInfo

type CPUInfo struct {
	Vendor   string   `json:"vendor"`
	Arch     string   `json:"arch"`
	Model    string   `json:"model"`
	Features []string `json:"features"`
	Topology Topology `json:"topology"`
}

CPUInfo represents CPU information of the hypervisor.

type Hypervisor

type Hypervisor struct {
	// A structure that contains cpu information like arch, model, vendor,
	// features and topology.
	CPUInfo CPUInfo `json:"-"`

	// The current_workload is the number of tasks the hypervisor is responsible
	// for. This will be equal or greater than the number of active VMs on the
	// system (it can be greater when VMs are being deleted and the hypervisor is
	// still cleaning up).
	CurrentWorkload int `json:"current_workload"`

	// Status of the hypervisor, either "enabled" or "disabled".
	Status string `json:"status"`

	// State of the hypervisor, either "up" or "down".
	State string `json:"state"`

	// DiskAvailableLeast is the actual free disk on this hypervisor,
	// measured in GB.
	DiskAvailableLeast int `json:"disk_available_least"`

	// HostIP is the hypervisor's IP address.
	HostIP string `json:"host_ip"`

	// FreeDiskGB is the free disk remaining on the hypervisor, measured in GB.
	FreeDiskGB int `json:"-"`

	// FreeRAMMB is the free RAM in the hypervisor, measured in MB.
	FreeRamMB int `json:"free_ram_mb"`

	// HypervisorHostname is the hostname of the hypervisor.
	HypervisorHostname string `json:"hypervisor_hostname"`

	// HypervisorType is the type of hypervisor.
	HypervisorType string `json:"hypervisor_type"`

	// HypervisorVersion is the version of the hypervisor.
	HypervisorVersion int `json:"-"`

	// ID is the unique ID of the hypervisor.
	ID int `json:"id"`

	// LocalGB is the disk space in the hypervisor, measured in GB.
	LocalGB int `json:"-"`

	// LocalGBUsed is the used disk space of the  hypervisor, measured in GB.
	LocalGBUsed int `json:"local_gb_used"`

	// MemoryMB is the total memory of the hypervisor, measured in MB.
	MemoryMB int `json:"memory_mb"`

	// MemoryMBUsed is the used memory of the hypervisor, measured in MB.
	MemoryMBUsed int `json:"memory_mb_used"`

	// RunningVMs is the The number of running vms on the hypervisor.
	RunningVMs int `json:"running_vms"`

	// Service is the service this hypervisor represents.
	Service Service `json:"service"`

	// VCPUs is the total number of vcpus on the hypervisor.
	VCPUs int `json:"vcpus"`

	// VCPUsUsed is the number of used vcpus on the hypervisor.
	VCPUsUsed int `json:"vcpus_used"`
}

Hypervisor represents a hypervisor in the OpenStack cloud.

func ExtractHypervisors

func ExtractHypervisors(p pagination.Page) ([]Hypervisor, error)

ExtractHypervisors interprets a page of results as a slice of Hypervisors.

func (*Hypervisor) UnmarshalJSON

func (r *Hypervisor) UnmarshalJSON(b []byte) error

type HypervisorPage

type HypervisorPage struct {
	pagination.SinglePageBase
}

HypervisorPage represents a single page of all Hypervisors from a List request.

func (HypervisorPage) IsEmpty

func (page HypervisorPage) IsEmpty() (bool, error)

IsEmpty determines whether or not a HypervisorPage is empty.

type HypervisorResult

type HypervisorResult struct {
	golangsdk.Result
}

func Get

func Get(client *golangsdk.ServiceClient, hypervisorID int) (r HypervisorResult)

Get makes a request against the API to get details for specific hypervisor.

func (HypervisorResult) Extract

func (r HypervisorResult) Extract() (*Hypervisor, error)

Extract interprets any HypervisorResult as a Hypervisor, if possible.

type Service

type Service struct {
	Host           string `json:"host"`
	ID             int    `json:"id"`
	DisabledReason string `json:"disabled_reason"`
}

Service represents a Compute service running on the hypervisor.

type Statistics

type Statistics struct {
	// The number of hypervisors.
	Count int `json:"count"`

	// The current_workload is the number of tasks the hypervisor is responsible for
	CurrentWorkload int `json:"current_workload"`

	// The actual free disk on this hypervisor(in GB).
	DiskAvailableLeast int `json:"disk_available_least"`

	// The free disk remaining on this hypervisor(in GB).
	FreeDiskGB int `json:"free_disk_gb"`

	// The free RAM in this hypervisor(in MB).
	FreeRamMB int `json:"free_ram_mb"`

	// The disk in this hypervisor(in GB).
	LocalGB int `json:"local_gb"`

	// The disk used in this hypervisor(in GB).
	LocalGBUsed int `json:"local_gb_used"`

	// The memory of this hypervisor(in MB).
	MemoryMB int `json:"memory_mb"`

	// The memory used in this hypervisor(in MB).
	MemoryMBUsed int `json:"memory_mb_used"`

	// The total number of running vms on all hypervisors.
	RunningVMs int `json:"running_vms"`

	// The number of vcpu in this hypervisor.
	VCPUs int `json:"vcpus"`

	// The number of vcpu used in this hypervisor.
	VCPUsUsed int `json:"vcpus_used"`
}

Statistics represents a summary statistics for all enabled hypervisors over all compute nodes in the OpenStack cloud.

type StatisticsResult

type StatisticsResult struct {
	golangsdk.Result
}

func GetStatistics

func GetStatistics(client *golangsdk.ServiceClient) (r StatisticsResult)

Statistics makes a request against the API to get hypervisors statistics.

func (StatisticsResult) Extract

func (r StatisticsResult) Extract() (*Statistics, error)

Extract interprets any StatisticsResult as a Statistics, if possible.

type Topology

type Topology struct {
	Sockets int `json:"sockets"`
	Cores   int `json:"cores"`
	Threads int `json:"threads"`
}

Topology represents a CPU Topology.

type Uptime

type Uptime struct {
	// The hypervisor host name provided by the Nova virt driver.
	// For the Ironic driver, it is the Ironic node uuid.
	HypervisorHostname string `json:"hypervisor_hostname"`

	// The id of the hypervisor.
	ID int `json:"id"`

	// The state of the hypervisor. One of up or down.
	State string `json:"state"`

	// The status of the hypervisor. One of enabled or disabled.
	Status string `json:"status"`

	// The total uptime of the hypervisor and information about average load.
	Uptime string `json:"uptime"`
}

Uptime represents uptime and additional info for a specific hypervisor.

type UptimeResult

type UptimeResult struct {
	golangsdk.Result
}

func GetUptime

func GetUptime(client *golangsdk.ServiceClient, hypervisorID int) (r UptimeResult)

GetUptime makes a request against the API to get uptime for specific hypervisor.

func (UptimeResult) Extract

func (r UptimeResult) Extract() (*Uptime, error)

Extract interprets any UptimeResult as a Uptime, if possible.