loadbalancers

package
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 Go to latest Published: Oct 13, 2019 License: Apache-2.0 Imports: 5 Imported by: 198

Documentation

Overview

Package loadbalancers provides information and interaction with Load Balancers of the LBaaS v2 extension for the OpenStack Networking service.

Example to List Load Balancers 

listOpts := loadbalancers.ListOpts{
	Provider: "haproxy",
}

allPages, err := loadbalancers.List(networkClient, listOpts).AllPages()
if err != nil {
	panic(err)
}

allLoadbalancers, err := loadbalancers.ExtractLoadBalancers(allPages)
if err != nil {
	panic(err)
}

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

Example to Create a Load Balancer 

createOpts := loadbalancers.CreateOpts{
	Name:         "db_lb",
	AdminStateUp: gophercloud.Enabled,
	VipSubnetID:  "9cedb85d-0759-4898-8a4b-fa5a5ea10086",
	VipAddress:   "10.30.176.48",
	Flavor:       "medium",
	Provider:     "haproxy",
}

lb, err := loadbalancers.Create(networkClient, createOpts).Extract()
if err != nil {
	panic(err)
}

Example to Update a Load Balancer 

lbID := "d67d56a6-4a86-4688-a282-f46444705c64"

i1001 := 1001
updateOpts := loadbalancers.UpdateOpts{
	Name: "new-name",
}

lb, err := loadbalancers.Update(networkClient, lbID, updateOpts).Extract()
if err != nil {
	panic(err)
}

Example to Delete a Load Balancers 

lbID := "d67d56a6-4a86-4688-a282-f46444705c64"
err := loadbalancers.Delete(networkClient, lbID).ExtractErr()
if err != nil {
	panic(err)
}

Example to Get the Status of a Load Balancer 

lbID := "d67d56a6-4a86-4688-a282-f46444705c64"
status, err := loadbalancers.GetStatuses(networkClient, LBID).Extract()
if err != nil {
	panic(err)
}

Example to Get the Statistics of a Load Balancer 

lbID := "d67d56a6-4a86-4688-a282-f46444705c64"
stats, err := loadbalancers.GetStats(networkClient, LBID).Extract()
if err != nil {
	panic(err)
}

Index

Constants

This section is empty.

Variables

This section is empty.

Functions

func List 

func List(c *gophercloud.ServiceClient, opts ListOptsBuilder) pagination.Pager

List returns a Pager which allows you to iterate over a collection of load balancers. It accepts a ListOpts struct, which allows you to filter and sort the returned collection for greater efficiency.

Default policy settings return only those load balancers that are owned by the tenant who submits the request, unless an admin user submits the request.

Types

type CreateOpts 

type CreateOpts struct {
	// Human-readable name for the Loadbalancer. Does not have to be unique.
	Name string `json:"name,omitempty"`

	// Human-readable description for the Loadbalancer.
	Description string `json:"description,omitempty"`

	// The network on which to allocate the Loadbalancer's address. A tenant can
	// only create Loadbalancers on networks authorized by policy (e.g. networks
	// that belong to them or networks that are shared).
	VipSubnetID string `json:"vip_subnet_id" required:"true"`

	// TenantID is the UUID of the project who owns the Loadbalancer.
	// Only administrative users can specify a project UUID other than their own.
	TenantID string `json:"tenant_id,omitempty"`

	// ProjectID is the UUID of the project who owns the Loadbalancer.
	// Only administrative users can specify a project UUID other than their own.
	ProjectID string `json:"project_id,omitempty"`

	// The IP address of the Loadbalancer.
	VipAddress string `json:"vip_address,omitempty"`

	// The administrative state of the Loadbalancer. A valid value is true (UP)
	// or false (DOWN).
	AdminStateUp *bool `json:"admin_state_up,omitempty"`

	// The UUID of a flavor.
	Flavor string `json:"flavor,omitempty"`

	// The name of the provider.
	Provider string `json:"provider,omitempty"`
}

CreateOpts is the common options struct used in this package's Create operation.

func (CreateOpts) ToLoadBalancerCreateMap 

func (opts CreateOpts) ToLoadBalancerCreateMap() (map[string]interface{}, error)

ToLoadBalancerCreateMap builds a request body from CreateOpts.

type CreateOptsBuilder 

type CreateOptsBuilder interface {
	ToLoadBalancerCreateMap() (map[string]interface{}, error)
}

CreateOptsBuilder allows extensions to add additional parameters to the Create request.

type CreateResult 

type CreateResult struct {
	// contains filtered or unexported fields
}

CreateResult represents the result of a create operation. Call its Extract method to interpret it as a LoadBalancer.

func Create 

func Create(c *gophercloud.ServiceClient, opts CreateOptsBuilder) (r CreateResult)

Create is an operation which provisions a new loadbalancer based on the configuration defined in the CreateOpts struct. Once the request is validated and progress has started on the provisioning process, a CreateResult will be returned.

func (CreateResult) Extract 

func (r CreateResult) Extract() (*LoadBalancer, error)

Extract is a function that accepts a result and extracts a loadbalancer.

type DeleteResult 

type DeleteResult struct {
	gophercloud.ErrResult
}

DeleteResult represents the result of a delete operation. Call its ExtractErr method to determine if the request succeeded or failed.

func CascadingDelete 

func CascadingDelete(c *gophercloud.ServiceClient, id string) (r DeleteResult)

CascadingDelete is like `Delete`, but will also delete any of the load balancer's children (listener, monitor, etc). NOTE: This function will only work with Octavia load balancers; Neutron does not support this.

func Delete 

func Delete(c *gophercloud.ServiceClient, id string) (r DeleteResult)

Delete will permanently delete a particular LoadBalancer based on its unique ID.

type GetResult 

type GetResult struct {
	// contains filtered or unexported fields
}

GetResult represents the result of a get operation. Call its Extract method to interpret it as a LoadBalancer.

func Get 

func Get(c *gophercloud.ServiceClient, id string) (r GetResult)

Get retrieves a particular Loadbalancer based on its unique ID.

func (GetResult) Extract 

func (r GetResult) Extract() (*LoadBalancer, error)

Extract is a function that accepts a result and extracts a loadbalancer.

type GetStatusesResult 

type GetStatusesResult struct {
	gophercloud.Result
}

GetStatusesResult represents the result of a GetStatuses operation. Call its Extract method to interpret it as a StatusTree.

func GetStatuses 

func GetStatuses(c *gophercloud.ServiceClient, id string) (r GetStatusesResult)

GetStatuses will return the status of a particular LoadBalancer.

func (GetStatusesResult) Extract 

func (r GetStatusesResult) Extract() (*StatusTree, error)

Extract is a function that accepts a result and extracts the status of a Loadbalancer.

type ListOpts 

type ListOpts struct {
	Description        string `q:"description"`
	AdminStateUp       *bool  `q:"admin_state_up"`
	TenantID           string `q:"tenant_id"`
	ProjectID          string `q:"project_id"`
	ProvisioningStatus string `q:"provisioning_status"`
	VipAddress         string `q:"vip_address"`
	VipPortID          string `q:"vip_port_id"`
	VipSubnetID        string `q:"vip_subnet_id"`
	ID                 string `q:"id"`
	OperatingStatus    string `q:"operating_status"`
	Name               string `q:"name"`
	Flavor             string `q:"flavor"`
	Provider           string `q:"provider"`
	Limit              int    `q:"limit"`
	Marker             string `q:"marker"`
	SortKey            string `q:"sort_key"`
	SortDir            string `q:"sort_dir"`
}

ListOpts allows the filtering and sorting of paginated collections through the API. Filtering is achieved by passing in struct field values that map to the Loadbalancer attributes you want to see returned. SortKey allows you to sort by a particular attribute. SortDir sets the direction, and is either `asc' or `desc'. Marker and Limit are used for pagination.

func (ListOpts) ToLoadBalancerListQuery 

func (opts ListOpts) ToLoadBalancerListQuery() (string, error)

ToLoadBalancerListQuery formats a ListOpts into a query string.

type ListOptsBuilder 

type ListOptsBuilder interface {
	ToLoadBalancerListQuery() (string, error)
}

ListOptsBuilder allows extensions to add additional parameters to the List request.

type LoadBalancer 

type LoadBalancer struct {
	// Human-readable description for the Loadbalancer.
	Description string `json:"description"`

	// The administrative state of the Loadbalancer.
	// A valid value is true (UP) or false (DOWN).
	AdminStateUp bool `json:"admin_state_up"`

	// Owner of the LoadBalancer.
	TenantID string `json:"tenant_id"`

	// The provisioning status of the LoadBalancer.
	// This value is ACTIVE, PENDING_CREATE or ERROR.
	ProvisioningStatus string `json:"provisioning_status"`

	// The IP address of the Loadbalancer.
	VipAddress string `json:"vip_address"`

	// The UUID of the port associated with the IP address.
	VipPortID string `json:"vip_port_id"`

	// The UUID of the subnet on which to allocate the virtual IP for the
	// Loadbalancer address.
	VipSubnetID string `json:"vip_subnet_id"`

	// The unique ID for the LoadBalancer.
	ID string `json:"id"`

	// The operating status of the LoadBalancer. This value is ONLINE or OFFLINE.
	OperatingStatus string `json:"operating_status"`

	// Human-readable name for the LoadBalancer. Does not have to be unique.
	Name string `json:"name"`

	// The UUID of a flavor if set.
	Flavor string `json:"flavor"`

	// The name of the provider.
	Provider string `json:"provider"`

	// Listeners are the listeners related to this Loadbalancer.
	Listeners []listeners.Listener `json:"listeners"`

	// Pools are the pools related to this Loadbalancer.
	Pools []pools.Pool `json:"pools"`
}

LoadBalancer is the primary load balancing configuration object that specifies the virtual IP address on which client traffic is received, as well as other details such as the load balancing method to be use, protocol, etc.

func ExtractLoadBalancers 

func ExtractLoadBalancers(r pagination.Page) ([]LoadBalancer, error)

ExtractLoadBalancers accepts a Page struct, specifically a LoadbalancerPage struct, and extracts the elements into a slice of LoadBalancer structs. In other words, a generic collection is mapped into a relevant slice.

type LoadBalancerPage 

type LoadBalancerPage struct {
	pagination.LinkedPageBase
}

LoadBalancerPage is the page returned by a pager when traversing over a collection of load balancers.

func (LoadBalancerPage) IsEmpty 

func (r LoadBalancerPage) IsEmpty() (bool, error)

IsEmpty checks whether a LoadBalancerPage struct is empty.

func (LoadBalancerPage) NextPageURL 

func (r LoadBalancerPage) NextPageURL() (string, error)

NextPageURL is invoked when a paginated collection of load balancers has reached the end of a page and the pager seeks to traverse over a new one. In order to do this, it needs to construct the next page's URL.

type Stats 

type Stats struct {
	// The currently active connections.
	ActiveConnections int `json:"active_connections"`

	// The total bytes received.
	BytesIn int `json:"bytes_in"`

	// The total bytes sent.
	BytesOut int `json:"bytes_out"`

	// The total requests that were unable to be fulfilled.
	RequestErrors int `json:"request_errors"`

	// The total connections handled.
	TotalConnections int `json:"total_connections"`
}

type StatsResult 

type StatsResult struct {
	gophercloud.Result
}

StatsResult represents the result of a GetStats operation. Call its Extract method to interpret it as a Stats.

func GetStats 

func GetStats(c *gophercloud.ServiceClient, id string) (r StatsResult)

GetStats will return the shows the current statistics of a particular LoadBalancer.

func (StatsResult) Extract 

func (r StatsResult) Extract() (*Stats, error)

Extract is a function that accepts a result and extracts the status of a Loadbalancer.

type StatusTree 

type StatusTree struct {
	Loadbalancer *LoadBalancer `json:"loadbalancer"`
}

StatusTree represents the status of a loadbalancer.

type UpdateOpts 

type UpdateOpts struct {
	// Human-readable name for the Loadbalancer. Does not have to be unique.
	Name *string `json:"name,omitempty"`

	// Human-readable description for the Loadbalancer.
	Description *string `json:"description,omitempty"`

	// The administrative state of the Loadbalancer. A valid value is true (UP)
	// or false (DOWN).
	AdminStateUp *bool `json:"admin_state_up,omitempty"`
}

UpdateOpts is the common options struct used in this package's Update operation.

func (UpdateOpts) ToLoadBalancerUpdateMap 

func (opts UpdateOpts) ToLoadBalancerUpdateMap() (map[string]interface{}, error)

ToLoadBalancerUpdateMap builds a request body from UpdateOpts.

type UpdateOptsBuilder 

type UpdateOptsBuilder interface {
	ToLoadBalancerUpdateMap() (map[string]interface{}, error)
}

UpdateOptsBuilder allows extensions to add additional parameters to the Update request.

type UpdateResult 

type UpdateResult struct {
	// contains filtered or unexported fields
}

UpdateResult represents the result of an update operation. Call its Extract method to interpret it as a LoadBalancer.

func Update 

func Update(c *gophercloud.ServiceClient, id string, opts UpdateOptsBuilder) (r UpdateResult)

Update is an operation which modifies the attributes of the specified LoadBalancer.

func (UpdateResult) Extract 

func (r UpdateResult) Extract() (*LoadBalancer, error)

Extract is a function that accepts a result and extracts a loadbalancer.

Source Files

View all Source files

Directories

Path Synopsis
loadbalancers unit tests
 loadbalancers unit tests

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