cloudinit/datasource/metadata/digitalocean/metadata.go
Alex Crawford 9ba25550a1 datasource: use opaque object instead of string
Rather than serializing the network config into a string and then later
deserializing it, just pass the object through directly.
2015-08-24 09:03:29 -07:00

111 lines
2.9 KiB
Go

// Copyright 2015 CoreOS, Inc.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package digitalocean
import (
"encoding/json"
"net"
"strconv"
"github.com/coreos/coreos-cloudinit/datasource"
"github.com/coreos/coreos-cloudinit/datasource/metadata"
)
const (
DefaultAddress = "http://169.254.169.254/"
apiVersion = "metadata/v1"
userdataUrl = apiVersion + "/user-data"
metadataPath = apiVersion + ".json"
)
type Address struct {
IPAddress string `json:"ip_address"`
Netmask string `json:"netmask"`
Cidr int `json:"cidr"`
Gateway string `json:"gateway"`
}
type Interface struct {
IPv4 *Address `json:"ipv4"`
IPv6 *Address `json:"ipv6"`
MAC string `json:"mac"`
Type string `json:"type"`
}
type Interfaces struct {
Public []Interface `json:"public"`
Private []Interface `json:"private"`
}
type DNS struct {
Nameservers []string `json:"nameservers"`
}
type Metadata struct {
Hostname string `json:"hostname"`
Interfaces Interfaces `json:"interfaces"`
PublicKeys []string `json:"public_keys"`
DNS DNS `json:"dns"`
}
type metadataService struct {
metadata.MetadataService
}
func NewDatasource(root string) *metadataService {
return &metadataService{MetadataService: metadata.NewDatasource(root, apiVersion, userdataUrl, metadataPath)}
}
func (ms *metadataService) FetchMetadata() (metadata datasource.Metadata, err error) {
var data []byte
var m Metadata
if data, err = ms.FetchData(ms.MetadataUrl()); err != nil || len(data) == 0 {
return
}
if err = json.Unmarshal(data, &m); err != nil {
return
}
if len(m.Interfaces.Public) > 0 {
if m.Interfaces.Public[0].IPv4 != nil {
metadata.PublicIPv4 = net.ParseIP(m.Interfaces.Public[0].IPv4.IPAddress)
}
if m.Interfaces.Public[0].IPv6 != nil {
metadata.PublicIPv6 = net.ParseIP(m.Interfaces.Public[0].IPv6.IPAddress)
}
}
if len(m.Interfaces.Private) > 0 {
if m.Interfaces.Private[0].IPv4 != nil {
metadata.PrivateIPv4 = net.ParseIP(m.Interfaces.Private[0].IPv4.IPAddress)
}
if m.Interfaces.Private[0].IPv6 != nil {
metadata.PrivateIPv6 = net.ParseIP(m.Interfaces.Private[0].IPv6.IPAddress)
}
}
metadata.Hostname = m.Hostname
metadata.SSHPublicKeys = map[string]string{}
for i, key := range m.PublicKeys {
metadata.SSHPublicKeys[strconv.Itoa(i)] = key
}
metadata.NetworkConfig = m
return
}
func (ms metadataService) Type() string {
return "digitalocean-metadata-service"
}