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package metadata
import (
"encoding/json"
"errors"
"fmt"
"io/ioutil"
"net"
"net/http"
)
const BaseURL = "https://metadata.packet.net"
func GetMetadata() (*CurrentDevice, error) {
return getMetadataFromURL(BaseURL)
}
func getMetadataFromURL(baseURL string) (*CurrentDevice, error) {
res, err := http.Get(baseURL + "/metadata")
if err != nil {
return nil, err
}
b, err := ioutil.ReadAll(res.Body)
res.Body.Close()
if err != nil {
return nil, err
}
var result struct {
Error string `json:"error"`
*CurrentDevice
}
if err := json.Unmarshal(b, &result); err != nil {
if res.StatusCode >= 400 {
return nil, errors.New(res.Status)
}
return nil, err
}
if result.Error != "" {
return nil, errors.New(result.Error)
}
return result.CurrentDevice, nil
}
func GetUserData() ([]byte, error) {
return getUserDataFromURL(BaseURL)
}
func getUserDataFromURL(baseURL string) ([]byte, error) {
res, err := http.Get(baseURL + "/userdata")
if err != nil {
return nil, err
}
b, err := ioutil.ReadAll(res.Body)
res.Body.Close()
return b, err
}
type AddressFamily int
const (
IPv4 = AddressFamily(4)
IPv6 = AddressFamily(6)
)
type AddressInfo struct {
ID string `json:"id"`
Family AddressFamily `json:"address_family"`
Public bool `json:"public"`
Management bool `json:"management"`
Address net.IP `json:"address"`
NetworkMask net.IP `json:"netmask"`
Gateway net.IP `json:"gateway"`
NetworkBits int `json:"cidr"`
// These are available, but not really needed:
// Network net.IP `json:"network"`
}
type BondingMode int
const (
BondingBalanceRR = BondingMode(0)
BondingActiveBackup = BondingMode(1)
BondingBalanceXOR = BondingMode(2)
BondingBroadcast = BondingMode(3)
BondingLACP = BondingMode(4)
BondingBalanceTLB = BondingMode(5)
BondingBalanceALB = BondingMode(6)
)
var bondingModeStrings = map[BondingMode]string{
BondingBalanceRR: "balance-rr",
BondingActiveBackup: "active-backup",
BondingBalanceXOR: "balance-xor",
BondingBroadcast: "broadcast",
BondingLACP: "802.3ad",
BondingBalanceTLB: "balance-tlb",
BondingBalanceALB: "balance-alb",
}
func (m BondingMode) String() string {
if str, ok := bondingModeStrings[m]; ok {
return str
}
return fmt.Sprintf("%d", m)
}
type CurrentDevice struct {
ID string `json:"id"`
Hostname string `json:"hostname"`
IQN string `json:"iqn"`
Plan string `json:"plan"`
Facility string `json:"facility"`
Tags []string `json:"tags"`
SSHKeys []string `json:"ssh_keys"`
OS OperatingSystem `json:"operating_system"`
Network NetworkInfo `json:"network"`
Volumes []VolumeInfo `json:"volumes"`
CustomData map[string]interface{} `json:"customdata"`
// This is available, but is actually inaccurate, currently:
// APIBaseURL string `json:"api_url"`
}
type InterfaceInfo struct {
Name string `json:"name"`
MAC string `json:"mac"`
}
func (i *InterfaceInfo) ParseMAC() (net.HardwareAddr, error) {
return net.ParseMAC(i.MAC)
}
type NetworkInfo struct {
Interfaces []InterfaceInfo `json:"interfaces"`
Addresses []AddressInfo `json:"addresses"`
Bonding struct {
Mode BondingMode `json:"mode"`
} `json:"bonding"`
}
func (n *NetworkInfo) BondingMode() BondingMode {
return n.Bonding.Mode
}
type OperatingSystem struct {
Slug string `json:"slug"`
Distro string `json:"distro"`
Version string `json:"version"`
}
type VolumeInfo struct {
Name string `json:"name"`
IQN string `json:"iqn"`
IPs []net.IP `json:"ips"`
Capacity struct {
Size int `json:"size,string"`
Unit string `json:"unit"`
} `json:"capacity"`
}
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