Vendor: add Gophercloud BlockStorage V3 volumes

Add the latest blockstorage v3 volumes client library.
This commit is contained in:
Andrei Ozerov 2018-05-24 09:58:43 +03:00 committed by Rickard von Essen
parent ac3554a37f
commit d38bd6b5f8
6 changed files with 441 additions and 1 deletions

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// Package volumes provides information and interaction with volumes in the
// OpenStack Block Storage service. A volume is a detachable block storage
// device, akin to a USB hard drive. It can only be attached to one instance at
// a time.
package volumes

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package volumes
import (
"github.com/gophercloud/gophercloud"
"github.com/gophercloud/gophercloud/pagination"
)
// CreateOptsBuilder allows extensions to add additional parameters to the
// Create request.
type CreateOptsBuilder interface {
ToVolumeCreateMap() (map[string]interface{}, error)
}
// CreateOpts contains options for creating a Volume. This object is passed to
// the volumes.Create function. For more information about these parameters,
// see the Volume object.
type CreateOpts struct {
// The size of the volume, in GB
Size int `json:"size" required:"true"`
// The availability zone
AvailabilityZone string `json:"availability_zone,omitempty"`
// ConsistencyGroupID is the ID of a consistency group
ConsistencyGroupID string `json:"consistencygroup_id,omitempty"`
// The volume description
Description string `json:"description,omitempty"`
// One or more metadata key and value pairs to associate with the volume
Metadata map[string]string `json:"metadata,omitempty"`
// The volume name
Name string `json:"name,omitempty"`
// the ID of the existing volume snapshot
SnapshotID string `json:"snapshot_id,omitempty"`
// SourceReplica is a UUID of an existing volume to replicate with
SourceReplica string `json:"source_replica,omitempty"`
// the ID of the existing volume
SourceVolID string `json:"source_volid,omitempty"`
// The ID of the image from which you want to create the volume.
// Required to create a bootable volume.
ImageID string `json:"imageRef,omitempty"`
// The associated volume type
VolumeType string `json:"volume_type,omitempty"`
}
// ToVolumeCreateMap assembles a request body based on the contents of a
// CreateOpts.
func (opts CreateOpts) ToVolumeCreateMap() (map[string]interface{}, error) {
return gophercloud.BuildRequestBody(opts, "volume")
}
// Create will create a new Volume based on the values in CreateOpts. To extract
// the Volume object from the response, call the Extract method on the
// CreateResult.
func Create(client *gophercloud.ServiceClient, opts CreateOptsBuilder) (r CreateResult) {
b, err := opts.ToVolumeCreateMap()
if err != nil {
r.Err = err
return
}
_, r.Err = client.Post(createURL(client), b, &r.Body, &gophercloud.RequestOpts{
OkCodes: []int{202},
})
return
}
// Delete will delete the existing Volume with the provided ID.
func Delete(client *gophercloud.ServiceClient, id string) (r DeleteResult) {
_, r.Err = client.Delete(deleteURL(client, id), nil)
return
}
// Get retrieves the Volume with the provided ID. To extract the Volume object
// from the response, call the Extract method on the GetResult.
func Get(client *gophercloud.ServiceClient, id string) (r GetResult) {
_, r.Err = client.Get(getURL(client, id), &r.Body, nil)
return
}
// ListOptsBuilder allows extensions to add additional parameters to the List
// request.
type ListOptsBuilder interface {
ToVolumeListQuery() (string, error)
}
// ListOpts holds options for listing Volumes. It is passed to the volumes.List
// function.
type ListOpts struct {
// AllTenants will retrieve volumes of all tenants/projects.
AllTenants bool `q:"all_tenants"`
// Metadata will filter results based on specified metadata.
Metadata map[string]string `q:"metadata"`
// Name will filter by the specified volume name.
Name string `q:"name"`
// Status will filter by the specified status.
Status string `q:"status"`
// TenantID will filter by a specific tenant/project ID.
// Setting AllTenants is required for this.
TenantID string `q:"project_id"`
// Comma-separated list of sort keys and optional sort directions in the
// form of <key>[:<direction>].
Sort string `q:"sort"`
// Requests a page size of items.
Limit int `q:"limit"`
// Used in conjunction with limit to return a slice of items.
Offset int `q:"offset"`
// The ID of the last-seen item.
Marker string `q:"marker"`
}
// ToVolumeListQuery formats a ListOpts into a query string.
func (opts ListOpts) ToVolumeListQuery() (string, error) {
q, err := gophercloud.BuildQueryString(opts)
return q.String(), err
}
// List returns Volumes optionally limited by the conditions provided in ListOpts.
func List(client *gophercloud.ServiceClient, opts ListOptsBuilder) pagination.Pager {
url := listURL(client)
if opts != nil {
query, err := opts.ToVolumeListQuery()
if err != nil {
return pagination.Pager{Err: err}
}
url += query
}
return pagination.NewPager(client, url, func(r pagination.PageResult) pagination.Page {
return VolumePage{pagination.LinkedPageBase{PageResult: r}}
})
}
// UpdateOptsBuilder allows extensions to add additional parameters to the
// Update request.
type UpdateOptsBuilder interface {
ToVolumeUpdateMap() (map[string]interface{}, error)
}
// UpdateOpts contain options for updating an existing Volume. This object is passed
// to the volumes.Update function. For more information about the parameters, see
// the Volume object.
type UpdateOpts struct {
Name string `json:"name,omitempty"`
Description string `json:"description,omitempty"`
Metadata map[string]string `json:"metadata,omitempty"`
}
// ToVolumeUpdateMap assembles a request body based on the contents of an
// UpdateOpts.
func (opts UpdateOpts) ToVolumeUpdateMap() (map[string]interface{}, error) {
return gophercloud.BuildRequestBody(opts, "volume")
}
// Update will update the Volume with provided information. To extract the updated
// Volume from the response, call the Extract method on the UpdateResult.
func Update(client *gophercloud.ServiceClient, id string, opts UpdateOptsBuilder) (r UpdateResult) {
b, err := opts.ToVolumeUpdateMap()
if err != nil {
r.Err = err
return
}
_, r.Err = client.Put(updateURL(client, id), b, &r.Body, &gophercloud.RequestOpts{
OkCodes: []int{200},
})
return
}
// IDFromName is a convienience function that returns a server's ID given its name.
func IDFromName(client *gophercloud.ServiceClient, name string) (string, error) {
count := 0
id := ""
pages, err := List(client, nil).AllPages()
if err != nil {
return "", err
}
all, err := ExtractVolumes(pages)
if err != nil {
return "", err
}
for _, s := range all {
if s.Name == name {
count++
id = s.ID
}
}
switch count {
case 0:
return "", gophercloud.ErrResourceNotFound{Name: name, ResourceType: "volume"}
case 1:
return id, nil
default:
return "", gophercloud.ErrMultipleResourcesFound{Name: name, Count: count, ResourceType: "volume"}
}
}

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package volumes
import (
"encoding/json"
"time"
"github.com/gophercloud/gophercloud"
"github.com/gophercloud/gophercloud/pagination"
)
// Attachment represents a Volume Attachment record
type Attachment struct {
AttachedAt time.Time `json:"-"`
AttachmentID string `json:"attachment_id"`
Device string `json:"device"`
HostName string `json:"host_name"`
ID string `json:"id"`
ServerID string `json:"server_id"`
VolumeID string `json:"volume_id"`
}
// UnmarshalJSON is our unmarshalling helper
func (r *Attachment) UnmarshalJSON(b []byte) error {
type tmp Attachment
var s struct {
tmp
AttachedAt gophercloud.JSONRFC3339MilliNoZ `json:"attached_at"`
}
err := json.Unmarshal(b, &s)
if err != nil {
return err
}
*r = Attachment(s.tmp)
r.AttachedAt = time.Time(s.AttachedAt)
return err
}
// Volume contains all the information associated with an OpenStack Volume.
type Volume struct {
// Unique identifier for the volume.
ID string `json:"id"`
// Current status of the volume.
Status string `json:"status"`
// Size of the volume in GB.
Size int `json:"size"`
// AvailabilityZone is which availability zone the volume is in.
AvailabilityZone string `json:"availability_zone"`
// The date when this volume was created.
CreatedAt time.Time `json:"-"`
// The date when this volume was last updated
UpdatedAt time.Time `json:"-"`
// Instances onto which the volume is attached.
Attachments []Attachment `json:"attachments"`
// Human-readable display name for the volume.
Name string `json:"name"`
// Human-readable description for the volume.
Description string `json:"description"`
// The type of volume to create, either SATA or SSD.
VolumeType string `json:"volume_type"`
// The ID of the snapshot from which the volume was created
SnapshotID string `json:"snapshot_id"`
// The ID of another block storage volume from which the current volume was created
SourceVolID string `json:"source_volid"`
// Arbitrary key-value pairs defined by the user.
Metadata map[string]string `json:"metadata"`
// UserID is the id of the user who created the volume.
UserID string `json:"user_id"`
// Indicates whether this is a bootable volume.
Bootable string `json:"bootable"`
// Encrypted denotes if the volume is encrypted.
Encrypted bool `json:"encrypted"`
// ReplicationStatus is the status of replication.
ReplicationStatus string `json:"replication_status"`
// ConsistencyGroupID is the consistency group ID.
ConsistencyGroupID string `json:"consistencygroup_id"`
// Multiattach denotes if the volume is multi-attach capable.
Multiattach bool `json:"multiattach"`
}
// UnmarshalJSON another unmarshalling function
func (r *Volume) UnmarshalJSON(b []byte) error {
type tmp Volume
var s struct {
tmp
CreatedAt gophercloud.JSONRFC3339MilliNoZ `json:"created_at"`
UpdatedAt gophercloud.JSONRFC3339MilliNoZ `json:"updated_at"`
}
err := json.Unmarshal(b, &s)
if err != nil {
return err
}
*r = Volume(s.tmp)
r.CreatedAt = time.Time(s.CreatedAt)
r.UpdatedAt = time.Time(s.UpdatedAt)
return err
}
// VolumePage is a pagination.pager that is returned from a call to the List function.
type VolumePage struct {
pagination.LinkedPageBase
}
// IsEmpty returns true if a ListResult contains no Volumes.
func (r VolumePage) IsEmpty() (bool, error) {
volumes, err := ExtractVolumes(r)
return len(volumes) == 0, err
}
func (page VolumePage) NextPageURL() (string, error) {
var s struct {
Links []gophercloud.Link `json:"volumes_links"`
}
err := page.ExtractInto(&s)
if err != nil {
return "", err
}
return gophercloud.ExtractNextURL(s.Links)
}
// ExtractVolumes extracts and returns Volumes. It is used while iterating over a volumes.List call.
func ExtractVolumes(r pagination.Page) ([]Volume, error) {
var s []Volume
err := ExtractVolumesInto(r, &s)
return s, err
}
type commonResult struct {
gophercloud.Result
}
// Extract will get the Volume object out of the commonResult object.
func (r commonResult) Extract() (*Volume, error) {
var s Volume
err := r.ExtractInto(&s)
return &s, err
}
// ExtractInto converts our response data into a volume struct
func (r commonResult) ExtractInto(v interface{}) error {
return r.Result.ExtractIntoStructPtr(v, "volume")
}
// ExtractVolumesInto similar to ExtractInto but operates on a `list` of volumes
func ExtractVolumesInto(r pagination.Page, v interface{}) error {
return r.(VolumePage).Result.ExtractIntoSlicePtr(v, "volumes")
}
// CreateResult contains the response body and error from a Create request.
type CreateResult struct {
commonResult
}
// GetResult contains the response body and error from a Get request.
type GetResult struct {
commonResult
}
// UpdateResult contains the response body and error from an Update request.
type UpdateResult struct {
commonResult
}
// DeleteResult contains the response body and error from a Delete request.
type DeleteResult struct {
gophercloud.ErrResult
}

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package volumes
import "github.com/gophercloud/gophercloud"
func createURL(c *gophercloud.ServiceClient) string {
return c.ServiceURL("volumes")
}
func listURL(c *gophercloud.ServiceClient) string {
return c.ServiceURL("volumes", "detail")
}
func deleteURL(c *gophercloud.ServiceClient, id string) string {
return c.ServiceURL("volumes", id)
}
func getURL(c *gophercloud.ServiceClient, id string) string {
return deleteURL(c, id)
}
func updateURL(c *gophercloud.ServiceClient, id string) string {
return deleteURL(c, id)
}

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package volumes
import (
"github.com/gophercloud/gophercloud"
)
// WaitForStatus will continually poll the resource, checking for a particular
// status. It will do this for the amount of seconds defined.
func WaitForStatus(c *gophercloud.ServiceClient, id, status string, secs int) error {
return gophercloud.WaitFor(secs, func() (bool, error) {
current, err := Get(c, id).Extract()
if err != nil {
return false, err
}
if current.Status == status {
return true, nil
}
return false, nil
})
}

20
vendor/vendor.json vendored
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"revisionTime": "2018-05-31T02:06:30Z" "revisionTime": "2018-05-31T02:06:30Z"
}, },
{ {
"checksumSHA1": "vFS5BwnCdQIfKm1nNWrR+ijsAZA=", "checksumSHA1": "vqXNCd2My0y/5tPC/Bs79uf6Q4E=",
"path": "github.com/gophercloud/gophercloud/openstack/blockstorage/v3/volumes",
"revision": "282f25e4025de0a42015d2e2b5faef1d920aad3c",
"revisionTime": "2018-05-15T01:47:05Z"
},
{
"checksumSHA1": "Au6MAsI90lewLByg9n+Yjtdqdh8=",
"path": "github.com/gophercloud/gophercloud/openstack/common/extensions",
"revision": "95a28eb606def6aaaed082b6b82d3244b0552184",
"revisionTime": "2017-06-23T01:44:30Z"
},
{
"checksumSHA1": "4XWDCGMYqipwJymi9xJo9UffD7g=",
"path": "github.com/gophercloud/gophercloud/openstack/compute/v2/extensions",
"revision": "95a28eb606def6aaaed082b6b82d3244b0552184",
"revisionTime": "2017-06-23T01:44:30Z"
},
{
"checksumSHA1": "e7AW3YDVYJPKUjpqsB4AL9RRlTw=",
"path": "github.com/gophercloud/gophercloud/openstack/compute/v2/extensions/floatingips", "path": "github.com/gophercloud/gophercloud/openstack/compute/v2/extensions/floatingips",
"revision": "7112fcd50da4ea27e8d4d499b30f04eea143bec2", "revision": "7112fcd50da4ea27e8d4d499b30f04eea143bec2",
"revisionTime": "2018-05-31T02:06:30Z" "revisionTime": "2018-05-31T02:06:30Z"