155 lines
3.5 KiB
Go
155 lines
3.5 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 vmware
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import (
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"fmt"
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"log"
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"net"
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"github.com/coreos/coreos-cloudinit/config"
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"github.com/coreos/coreos-cloudinit/datasource"
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"github.com/coreos/coreos-cloudinit/Godeps/_workspace/src/github.com/sigma/vmw-guestinfo/rpcvmx"
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"github.com/coreos/coreos-cloudinit/Godeps/_workspace/src/github.com/sigma/vmw-guestinfo/vmcheck"
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)
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type vmware struct {
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readConfig func(key string) (string, error)
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}
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func NewDatasource() *vmware {
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return &vmware{readConfig}
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}
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func (v vmware) IsAvailable() bool {
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return vmcheck.IsVirtualWorld()
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}
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func (v vmware) AvailabilityChanges() bool {
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return false
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}
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func (v vmware) ConfigRoot() string {
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return "/"
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}
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func (v vmware) FetchMetadata() (metadata datasource.Metadata, err error) {
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metadata.Hostname, _ = v.readConfig("hostname")
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netconf := map[string]string{}
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saveConfig := func(key string, args ...interface{}) string {
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key = fmt.Sprintf(key, args...)
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val, _ := v.readConfig(key)
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if val != "" {
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netconf[key] = val
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}
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return val
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}
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for i := 0; ; i++ {
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if nameserver := saveConfig("dns.server.%d", i); nameserver == "" {
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break
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}
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}
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found := true
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for i := 0; found; i++ {
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found = false
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found = (saveConfig("interface.%d.name", i) != "") || found
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found = (saveConfig("interface.%d.mac", i) != "") || found
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found = (saveConfig("interface.%d.dhcp", i) != "") || found
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role, _ := v.readConfig(fmt.Sprintf("interface.%d.role", i))
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for a := 0; ; a++ {
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address := saveConfig("interface.%d.ip.%d.address", i, a)
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if address == "" {
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break
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} else {
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found = true
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}
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ip, _, err := net.ParseCIDR(address)
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if err != nil {
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return metadata, err
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}
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switch role {
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case "public":
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if ip.To4() != nil {
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metadata.PublicIPv4 = ip
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} else {
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metadata.PublicIPv6 = ip
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}
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case "private":
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if ip.To4() != nil {
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metadata.PrivateIPv4 = ip
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} else {
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metadata.PrivateIPv6 = ip
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}
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case "":
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default:
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return metadata, fmt.Errorf("unrecognized role: %q", role)
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}
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}
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for r := 0; ; r++ {
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gateway := saveConfig("interface.%d.route.%d.gateway", i, r)
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destination := saveConfig("interface.%d.route.%d.destination", i, r)
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if gateway == "" && destination == "" {
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break
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} else {
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found = true
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}
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}
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}
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metadata.NetworkConfig = netconf
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return
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}
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func (v vmware) FetchUserdata() ([]byte, error) {
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encoding, err := v.readConfig("coreos.config.data.encoding")
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if err != nil {
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return nil, err
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}
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data, err := v.readConfig("coreos.config.data")
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if err != nil {
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return nil, err
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}
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if encoding != "" {
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return config.DecodeContent(data, encoding)
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}
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return []byte(data), nil
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}
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func (v vmware) Type() string {
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return "vmware"
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}
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func readConfig(key string) (string, error) {
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data, err := rpcvmx.NewConfig().GetString(key, "")
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if err == nil {
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log.Printf("Read from %q: %q\n", key, data)
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} else {
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log.Printf("Failed to read from %q: %v\n", key, err)
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}
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return data, err
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}
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