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requests.go
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requests.go
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package loadbalancers
import (
"fmt"
"github.com/huaweicloud/golangsdk"
"github.com/huaweicloud/golangsdk/pagination"
)
// ListOptsBuilder allows extensions to add additional parameters to the
// List request.
type ListOptsBuilder interface {
ToLoadBalancerListQuery() (string, error)
}
// 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.
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"`
EnterpriseProjectID string `q:"enterprise_project_id"`
}
// ToLoadBalancerListQuery formats a ListOpts into a query string.
func (opts ListOpts) ToLoadBalancerListQuery() (string, error) {
q, err := golangsdk.BuildQueryString(opts)
return q.String(), err
}
// 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.
func List(c *golangsdk.ServiceClient, opts ListOptsBuilder) pagination.Pager {
url := rootURL(c)
if opts != nil {
query, err := opts.ToLoadBalancerListQuery()
if err != nil {
return pagination.Pager{Err: err}
}
url += query
}
return pagination.NewPager(c, url, func(r pagination.PageResult) pagination.Page {
return LoadBalancerPage{pagination.LinkedPageBase{PageResult: r}}
})
}
// CreateOptsBuilder allows extensions to add additional parameters to the
// Create request.
type CreateOptsBuilder interface {
ToLoadBalancerCreateMap() (map[string]interface{}, error)
}
// CreateOpts is the common options struct used in this package's Create
// operation.
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"`
// Enterprise project ID
EnterpriseProjectID string `json:"enterprise_project_id,omitempty"`
}
// ToLoadBalancerCreateMap builds a request body from CreateOpts.
func (opts CreateOpts) ToLoadBalancerCreateMap() (map[string]interface{}, error) {
return golangsdk.BuildRequestBody(opts, "loadbalancer")
}
// 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 Create(c *golangsdk.ServiceClient, opts CreateOptsBuilder) (r CreateResult) {
b, err := opts.ToLoadBalancerCreateMap()
if err != nil {
r.Err = err
return
}
_, r.Err = c.Post(rootURL(c), b, &r.Body, nil)
return
}
// Get retrieves a particular Loadbalancer based on its unique ID.
func Get(c *golangsdk.ServiceClient, id string) (r GetResult) {
_, r.Err = c.Get(resourceURL(c, id), &r.Body, nil)
return
}
// UpdateOptsBuilder allows extensions to add additional parameters to the
// Update request.
type UpdateOptsBuilder interface {
ToLoadBalancerUpdateMap() (map[string]interface{}, error)
}
// UpdateOpts is the common options struct used in this package's Update
// operation.
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"`
}
// ToLoadBalancerUpdateMap builds a request body from UpdateOpts.
func (opts UpdateOpts) ToLoadBalancerUpdateMap() (map[string]interface{}, error) {
return golangsdk.BuildRequestBody(opts, "loadbalancer")
}
// Update is an operation which modifies the attributes of the specified
// LoadBalancer.
func Update(c *golangsdk.ServiceClient, id string, opts UpdateOpts) (r UpdateResult) {
b, err := opts.ToLoadBalancerUpdateMap()
if err != nil {
r.Err = err
return
}
_, r.Err = c.Put(resourceURL(c, id), b, &r.Body, &golangsdk.RequestOpts{
OkCodes: []int{200, 202},
})
return
}
// Delete will permanently delete a particular LoadBalancer based on its
// unique ID.
func Delete(c *golangsdk.ServiceClient, id string) (r DeleteResult) {
_, r.Err = c.Delete(resourceURL(c, id), nil)
return
}
// 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 CascadingDelete(c *golangsdk.ServiceClient, id string) (r DeleteResult) {
if c.Type != "load-balancer" {
r.Err = fmt.Errorf("error prior to running cascade delete: only Octavia LBs supported")
return
}
u := fmt.Sprintf("%s?cascade=true", resourceURL(c, id))
_, r.Err = c.Delete(u, nil)
return
}
// GetStatuses will return the status of a particular LoadBalancer.
func GetStatuses(c *golangsdk.ServiceClient, id string) (r GetStatusesResult) {
_, r.Err = c.Get(statusRootURL(c, id), &r.Body, nil)
return
}