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