traefik/vendor/github.com/JamesClonk/vultr/lib/block_storage.go

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package lib
import (
"encoding/json"
"fmt"
"net/url"
"sort"
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"strconv"
"strings"
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)
// BlockStorage on Vultr account
type BlockStorage struct {
ID string `json:"SUBID,string"`
Name string `json:"label"`
RegionID int `json:"DCID,string"`
SizeGB int `json:"size_gb,string"`
Created string `json:"date_created"`
Cost string `json:"cost_per_month"`
Status string `json:"status"`
AttachedTo string `json:"attached_to_SUBID"`
}
type blockstorages []BlockStorage
func (b blockstorages) Len() int { return len(b) }
func (b blockstorages) Swap(i, j int) { b[i], b[j] = b[j], b[i] }
func (b blockstorages) Less(i, j int) bool {
// sort order: name, size, status
if strings.ToLower(b[i].Name) < strings.ToLower(b[j].Name) {
return true
} else if strings.ToLower(b[i].Name) > strings.ToLower(b[j].Name) {
return false
}
if b[i].SizeGB < b[j].SizeGB {
return true
} else if b[i].SizeGB > b[j].SizeGB {
return false
}
return b[i].Status < b[j].Status
}
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// UnmarshalJSON implements json.Unmarshaller on BlockStorage.
// This is needed because the Vultr API is inconsistent in it's JSON responses.
// Some fields can change type, from JSON number to JSON string and vice-versa.
func (b *BlockStorage) UnmarshalJSON(data []byte) (err error) {
if b == nil {
*b = BlockStorage{}
}
var fields map[string]interface{}
if err := json.Unmarshal(data, &fields); err != nil {
return err
}
value := fmt.Sprintf("%v", fields["SUBID"])
if len(value) == 0 || value == "<nil>" || value == "0" {
b.ID = ""
} else {
id, err := strconv.ParseFloat(value, 64)
if err != nil {
return err
}
b.ID = strconv.FormatFloat(id, 'f', -1, 64)
}
value = fmt.Sprintf("%v", fields["DCID"])
if len(value) == 0 || value == "<nil>" {
value = "0"
}
region, err := strconv.ParseInt(value, 10, 64)
if err != nil {
return err
}
b.RegionID = int(region)
value = fmt.Sprintf("%v", fields["size_gb"])
if len(value) == 0 || value == "<nil>" {
value = "0"
}
size, err := strconv.ParseInt(value, 10, 64)
if err != nil {
return err
}
b.SizeGB = int(size)
value = fmt.Sprintf("%v", fields["attached_to_SUBID"])
if len(value) == 0 || value == "<nil>" || value == "0" {
b.AttachedTo = ""
} else {
attached, err := strconv.ParseFloat(value, 64)
if err != nil {
return err
}
b.AttachedTo = strconv.FormatFloat(attached, 'f', -1, 64)
}
b.Name = fmt.Sprintf("%v", fields["label"])
b.Created = fmt.Sprintf("%v", fields["date_created"])
b.Status = fmt.Sprintf("%v", fields["status"])
b.Cost = fmt.Sprintf("%v", fields["cost_per_month"])
return
}
// GetBlockStorages returns a list of all active block storages on Vultr account
func (c *Client) GetBlockStorages() (storages []BlockStorage, err error) {
if err := c.get(`block/list`, &storages); err != nil {
return nil, err
}
sort.Sort(blockstorages(storages))
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return storages, nil
}
// GetBlockStorage returns block storage with given ID
func (c *Client) GetBlockStorage(id string) (BlockStorage, error) {
storages, err := c.GetBlockStorages()
if err != nil {
return BlockStorage{}, err
}
for _, s := range storages {
if s.ID == id {
return s, nil
}
}
return BlockStorage{}, fmt.Errorf("BlockStorage with ID %v not found", id)
}
// CreateBlockStorage creates a new block storage on Vultr account
func (c *Client) CreateBlockStorage(name string, regionID, size int) (BlockStorage, error) {
values := url.Values{
"label": {name},
"DCID": {fmt.Sprintf("%v", regionID)},
"size_gb": {fmt.Sprintf("%v", size)},
}
var storage BlockStorage
if err := c.post(`block/create`, values, &storage); err != nil {
return BlockStorage{}, err
}
storage.RegionID = regionID
storage.Name = name
storage.SizeGB = size
return storage, nil
}
// ResizeBlockStorage resizes an existing block storage
func (c *Client) ResizeBlockStorage(id string, size int) error {
values := url.Values{
"SUBID": {id},
"size_gb": {fmt.Sprintf("%v", size)},
}
if err := c.post(`block/resize`, values, nil); err != nil {
return err
}
return nil
}
// LabelBlockStorage changes the label on an existing block storage
func (c *Client) LabelBlockStorage(id, name string) error {
values := url.Values{
"SUBID": {id},
"label": {name},
}
if err := c.post(`block/label_set`, values, nil); err != nil {
return err
}
return nil
}
// AttachBlockStorage attaches block storage to an existing virtual machine
func (c *Client) AttachBlockStorage(id, serverID string) error {
values := url.Values{
"SUBID": {id},
"attach_to_SUBID": {serverID},
}
if err := c.post(`block/attach`, values, nil); err != nil {
return err
}
return nil
}
// DetachBlockStorage detaches block storage from virtual machine
func (c *Client) DetachBlockStorage(id string) error {
values := url.Values{
"SUBID": {id},
}
if err := c.post(`block/detach`, values, nil); err != nil {
return err
}
return nil
}
// DeleteBlockStorage deletes an existing block storage
func (c *Client) DeleteBlockStorage(id string) error {
values := url.Values{
"SUBID": {id},
}
if err := c.post(`block/delete`, values, nil); err != nil {
return err
}
return nil
}