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

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2017-02-07 21:33:23 +00:00
package lib
import (
"encoding/base64"
"encoding/json"
"fmt"
"net/url"
"strconv"
)
// Server (virtual machine) on Vultr account
type Server struct {
ID string `json:"SUBID"`
Name string `json:"label"`
OS string `json:"os"`
RAM string `json:"ram"`
Disk string `json:"disk"`
MainIP string `json:"main_ip"`
VCpus int `json:"vcpu_count,string"`
Location string `json:"location"`
RegionID int `json:"DCID,string"`
DefaultPassword string `json:"default_password"`
Created string `json:"date_created"`
PendingCharges float64 `json:"pending_charges"`
Status string `json:"status"`
Cost string `json:"cost_per_month"`
CurrentBandwidth float64 `json:"current_bandwidth_gb"`
AllowedBandwidth float64 `json:"allowed_bandwidth_gb,string"`
NetmaskV4 string `json:"netmask_v4"`
GatewayV4 string `json:"gateway_v4"`
PowerStatus string `json:"power_status"`
ServerState string `json:"server_state"`
PlanID int `json:"VPSPLANID,string"`
V6Networks []V6Network `json:"v6_networks"`
InternalIP string `json:"internal_ip"`
KVMUrl string `json:"kvm_url"`
AutoBackups string `json:"auto_backups"`
Tag string `json:"tag"`
}
// ServerOptions are optional parameters to be used during server creation
type ServerOptions struct {
IPXEChainURL string
ISO int
Script int
UserData string
Snapshot string
SSHKey string
IPV6 bool
PrivateNetworking bool
AutoBackups bool
DontNotifyOnActivate bool
Hostname string
Tag string
}
// V6Network represents a IPv6 network of a Vultr server
type V6Network struct {
Network string `json:"v6_network"`
MainIP string `json:"v6_main_ip"`
NetworkSize string `json:"v6_network_size"`
}
// ISOStatus represents an ISO image attached to a Vultr server
type ISOStatus struct {
State string `json:"state"`
ISOID string `json:"ISOID"`
}
// UnmarshalJSON implements json.Unmarshaller on Server.
// This is needed because the Vultr API is inconsistent in it's JSON responses for servers.
// Some fields can change type, from JSON number to JSON string and vice-versa.
func (s *Server) UnmarshalJSON(data []byte) (err error) {
if s == nil {
*s = Server{}
}
var fields map[string]interface{}
if err := json.Unmarshal(data, &fields); err != nil {
return err
}
value := fmt.Sprintf("%v", fields["vcpu_count"])
if len(value) == 0 || value == "<nil>" {
value = "0"
}
vcpu, err := strconv.ParseInt(value, 10, 64)
if err != nil {
return err
}
s.VCpus = int(vcpu)
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
}
s.RegionID = int(region)
value = fmt.Sprintf("%v", fields["VPSPLANID"])
if len(value) == 0 || value == "<nil>" {
value = "0"
}
plan, err := strconv.ParseInt(value, 10, 64)
if err != nil {
return err
}
s.PlanID = int(plan)
value = fmt.Sprintf("%v", fields["pending_charges"])
if len(value) == 0 || value == "<nil>" {
value = "0"
}
pc, err := strconv.ParseFloat(value, 64)
if err != nil {
return err
}
s.PendingCharges = pc
value = fmt.Sprintf("%v", fields["current_bandwidth_gb"])
if len(value) == 0 || value == "<nil>" {
value = "0"
}
cb, err := strconv.ParseFloat(value, 64)
if err != nil {
return err
}
s.CurrentBandwidth = cb
value = fmt.Sprintf("%v", fields["allowed_bandwidth_gb"])
if len(value) == 0 || value == "<nil>" {
value = "0"
}
ab, err := strconv.ParseFloat(value, 64)
if err != nil {
return err
}
s.AllowedBandwidth = ab
s.ID = fmt.Sprintf("%v", fields["SUBID"])
s.Name = fmt.Sprintf("%v", fields["label"])
s.OS = fmt.Sprintf("%v", fields["os"])
s.RAM = fmt.Sprintf("%v", fields["ram"])
s.Disk = fmt.Sprintf("%v", fields["disk"])
s.MainIP = fmt.Sprintf("%v", fields["main_ip"])
s.Location = fmt.Sprintf("%v", fields["location"])
s.DefaultPassword = fmt.Sprintf("%v", fields["default_password"])
s.Created = fmt.Sprintf("%v", fields["date_created"])
s.Status = fmt.Sprintf("%v", fields["status"])
s.Cost = fmt.Sprintf("%v", fields["cost_per_month"])
s.NetmaskV4 = fmt.Sprintf("%v", fields["netmask_v4"])
s.GatewayV4 = fmt.Sprintf("%v", fields["gateway_v4"])
s.PowerStatus = fmt.Sprintf("%v", fields["power_status"])
s.ServerState = fmt.Sprintf("%v", fields["server_state"])
v6networks := make([]V6Network, 0)
if networks, ok := fields["v6_networks"].([]interface{}); ok {
for _, network := range networks {
if network, ok := network.(map[string]interface{}); ok {
v6network := V6Network{
Network: fmt.Sprintf("%v", network["v6_network"]),
MainIP: fmt.Sprintf("%v", network["v6_main_ip"]),
NetworkSize: fmt.Sprintf("%v", network["v6_network_size"]),
}
v6networks = append(v6networks, v6network)
}
}
s.V6Networks = v6networks
}
s.InternalIP = fmt.Sprintf("%v", fields["internal_ip"])
s.KVMUrl = fmt.Sprintf("%v", fields["kvm_url"])
s.AutoBackups = fmt.Sprintf("%v", fields["auto_backups"])
s.Tag = fmt.Sprintf("%v", fields["tag"])
return
}
// GetServers returns a list of current virtual machines on Vultr account
func (c *Client) GetServers() (servers []Server, err error) {
var serverMap map[string]Server
if err := c.get(`server/list`, &serverMap); err != nil {
return nil, err
}
for _, server := range serverMap {
servers = append(servers, server)
}
return servers, nil
}
// GetServersByTag returns a list of all virtual machines matching by tag
func (c *Client) GetServersByTag(tag string) (servers []Server, err error) {
var serverMap map[string]Server
if err := c.get(`server/list?tag=`+tag, &serverMap); err != nil {
return nil, err
}
for _, server := range serverMap {
servers = append(servers, server)
}
return servers, nil
}
// GetServer returns the virtual machine with the given ID
func (c *Client) GetServer(id string) (server Server, err error) {
if err := c.get(`server/list?SUBID=`+id, &server); err != nil {
return Server{}, err
}
return server, nil
}
// CreateServer creates a new virtual machine on Vultr. ServerOptions are optional settings.
func (c *Client) CreateServer(name string, regionID, planID, osID int, options *ServerOptions) (Server, error) {
values := url.Values{
"label": {name},
"DCID": {fmt.Sprintf("%v", regionID)},
"VPSPLANID": {fmt.Sprintf("%v", planID)},
"OSID": {fmt.Sprintf("%v", osID)},
}
if options != nil {
if options.IPXEChainURL != "" {
values.Add("ipxe_chain_url", options.IPXEChainURL)
}
if options.ISO != 0 {
values.Add("ISOID", fmt.Sprintf("%v", options.ISO))
}
if options.Script != 0 {
values.Add("SCRIPTID", fmt.Sprintf("%v", options.Script))
}
if options.UserData != "" {
values.Add("userdata", base64.StdEncoding.EncodeToString([]byte(options.UserData)))
}
if options.Snapshot != "" {
values.Add("SNAPSHOTID", options.Snapshot)
}
if options.SSHKey != "" {
values.Add("SSHKEYID", options.SSHKey)
}
values.Add("enable_ipv6", "no")
if options.IPV6 {
values.Set("enable_ipv6", "yes")
}
values.Add("enable_private_network", "no")
if options.PrivateNetworking {
values.Set("enable_private_network", "yes")
}
values.Add("auto_backups", "no")
if options.AutoBackups {
values.Set("auto_backups", "yes")
}
values.Add("notify_activate", "yes")
if options.DontNotifyOnActivate {
values.Set("notify_activate", "no")
}
if options.Hostname != "" {
values.Add("hostname", options.Hostname)
}
if options.Tag != "" {
values.Add("tag", options.Tag)
}
}
var server Server
if err := c.post(`server/create`, values, &server); err != nil {
return Server{}, err
}
server.Name = name
server.RegionID = regionID
server.PlanID = planID
return server, nil
}
// RenameServer renames an existing virtual machine
func (c *Client) RenameServer(id, name string) error {
values := url.Values{
"SUBID": {id},
"label": {name},
}
if err := c.post(`server/label_set`, values, nil); err != nil {
return err
}
return nil
}
// StartServer starts an existing virtual machine
func (c *Client) StartServer(id string) error {
values := url.Values{
"SUBID": {id},
}
if err := c.post(`server/start`, values, nil); err != nil {
return err
}
return nil
}
// HaltServer stops an existing virtual machine
func (c *Client) HaltServer(id string) error {
values := url.Values{
"SUBID": {id},
}
if err := c.post(`server/halt`, values, nil); err != nil {
return err
}
return nil
}
// RebootServer reboots an existing virtual machine
func (c *Client) RebootServer(id string) error {
values := url.Values{
"SUBID": {id},
}
if err := c.post(`server/reboot`, values, nil); err != nil {
return err
}
return nil
}
// ReinstallServer reinstalls the operating system on an existing virtual machine
func (c *Client) ReinstallServer(id string) error {
values := url.Values{
"SUBID": {id},
}
if err := c.post(`server/reinstall`, values, nil); err != nil {
return err
}
return nil
}
// ChangeOSofServer changes the virtual machine to a different operating system
func (c *Client) ChangeOSofServer(id string, osID int) error {
values := url.Values{
"SUBID": {id},
"OSID": {fmt.Sprintf("%v", osID)},
}
if err := c.post(`server/os_change`, values, nil); err != nil {
return err
}
return nil
}
// ListOSforServer lists all available operating systems to which an existing virtual machine can be changed
func (c *Client) ListOSforServer(id string) (os []OS, err error) {
var osMap map[string]OS
if err := c.get(`server/os_change_list?SUBID=`+id, &osMap); err != nil {
return nil, err
}
for _, o := range osMap {
os = append(os, o)
}
return os, nil
}
// AttachISOtoServer attaches an ISO image to an existing virtual machine and reboots it
func (c *Client) AttachISOtoServer(id string, isoID int) error {
values := url.Values{
"SUBID": {id},
"ISOID": {fmt.Sprintf("%v", isoID)},
}
if err := c.post(`server/iso_attach`, values, nil); err != nil {
return err
}
return nil
}
// DetachISOfromServer detaches the currently mounted ISO image from the virtual machine and reboots it
func (c *Client) DetachISOfromServer(id string) error {
values := url.Values{
"SUBID": {id},
}
if err := c.post(`server/iso_detach`, values, nil); err != nil {
return err
}
return nil
}
// GetISOStatusofServer retrieves the current ISO image state of an existing virtual machine
func (c *Client) GetISOStatusofServer(id string) (isoStatus ISOStatus, err error) {
if err := c.get(`server/iso_status?SUBID=`+id, &isoStatus); err != nil {
return ISOStatus{}, err
}
return isoStatus, nil
}
// DeleteServer deletes an existing virtual machine
func (c *Client) DeleteServer(id string) error {
values := url.Values{
"SUBID": {id},
}
if err := c.post(`server/destroy`, values, nil); err != nil {
return err
}
return nil
}
// BandwidthOfServer retrieves the bandwidth used by a virtual machine
func (c *Client) BandwidthOfServer(id string) (bandwidth []map[string]string, err error) {
var bandwidthMap map[string][][]string
if err := c.get(`server/bandwidth?SUBID=`+id, &bandwidthMap); err != nil {
return nil, err
}
// parse incoming bytes
for _, b := range bandwidthMap["incoming_bytes"] {
bMap := make(map[string]string)
bMap["date"] = b[0]
bMap["incoming"] = b[1]
bandwidth = append(bandwidth, bMap)
}
// parse outgoing bytes (we'll assume that incoming and outgoing dates are always a match)
for _, b := range bandwidthMap["outgoing_bytes"] {
for i := range bandwidth {
if bandwidth[i]["date"] == b[0] {
bandwidth[i]["outgoing"] = b[1]
break
}
}
}
return bandwidth, nil
}