9605b5edf2
Its easier to let each datasource grab all metadata in the FetchMetadata stage than to break it into multiple stages.
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/coreos/coreos-cloudinit/datasource"
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"github.com/coreos/coreos-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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