github.com/vmware/govmomi@v0.43.0/govc/host/esxcli/guest_info.go (about)

     1  /*
     2  Copyright (c) 2014-2015 VMware, Inc. All Rights Reserved.
     3  
     4  Licensed under the Apache License, Version 2.0 (the "License");
     5  you may not use this file except in compliance with the License.
     6  You may obtain a copy of the License at
     7  
     8      http://www.apache.org/licenses/LICENSE-2.0
     9  
    10  Unless required by applicable law or agreed to in writing, software
    11  distributed under the License is distributed on an "AS IS" BASIS,
    12  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
    13  See the License for the specific language governing permissions and
    14  limitations under the License.
    15  */
    16  
    17  package esxcli
    18  
    19  import (
    20  	"context"
    21  	"strings"
    22  
    23  	"github.com/vmware/govmomi/object"
    24  	"github.com/vmware/govmomi/property"
    25  	"github.com/vmware/govmomi/vim25"
    26  	"github.com/vmware/govmomi/vim25/mo"
    27  	"github.com/vmware/govmomi/vim25/types"
    28  )
    29  
    30  type hostInfo struct {
    31  	*Executor
    32  	wids map[string]string
    33  }
    34  
    35  type GuestInfo struct {
    36  	c     *vim25.Client
    37  	hosts map[string]*hostInfo
    38  }
    39  
    40  func NewGuestInfo(c *vim25.Client) *GuestInfo {
    41  	return &GuestInfo{
    42  		c:     c,
    43  		hosts: make(map[string]*hostInfo),
    44  	}
    45  }
    46  
    47  func (g *GuestInfo) hostInfo(ref *types.ManagedObjectReference) (*hostInfo, error) {
    48  	// cache exectuor and uuid -> worldid map
    49  	if h, ok := g.hosts[ref.Value]; ok {
    50  		return h, nil
    51  	}
    52  
    53  	host := object.NewHostSystem(g.c, *ref)
    54  
    55  	e, err := NewExecutor(g.c, host)
    56  	if err != nil {
    57  		return nil, err
    58  	}
    59  
    60  	res, err := e.Run([]string{"vm", "process", "list"})
    61  	if err != nil {
    62  		return nil, err
    63  	}
    64  
    65  	ids := make(map[string]string, len(res.Values))
    66  
    67  	for _, process := range res.Values {
    68  		// Normalize uuid, esxcli and mo.VirtualMachine have different formats
    69  		uuid := strings.Replace(process["UUID"][0], " ", "", -1)
    70  		uuid = strings.Replace(uuid, "-", "", -1)
    71  
    72  		ids[uuid] = process["WorldID"][0]
    73  	}
    74  
    75  	h := &hostInfo{e, ids}
    76  	g.hosts[ref.Value] = h
    77  
    78  	return h, nil
    79  }
    80  
    81  // IpAddress attempts to find the guest IP address using esxcli.
    82  // ESX hosts must be configured with the /Net/GuestIPHack enabled.
    83  // For example:
    84  // $ govc host.esxcli -- system settings advanced set -o /Net/GuestIPHack -i 1
    85  func (g *GuestInfo) IpAddress(vm *object.VirtualMachine) (string, error) {
    86  	ctx := context.TODO()
    87  	const any = "0.0.0.0"
    88  	var mvm mo.VirtualMachine
    89  
    90  	pc := property.DefaultCollector(g.c)
    91  	err := pc.RetrieveOne(ctx, vm.Reference(), []string{"runtime.host", "config.uuid"}, &mvm)
    92  	if err != nil {
    93  		return "", err
    94  	}
    95  
    96  	h, err := g.hostInfo(mvm.Runtime.Host)
    97  	if err != nil {
    98  		return "", err
    99  	}
   100  
   101  	// Normalize uuid, esxcli and mo.VirtualMachine have different formats
   102  	uuid := strings.Replace(mvm.Config.Uuid, "-", "", -1)
   103  
   104  	if wid, ok := h.wids[uuid]; ok {
   105  		res, err := h.Run([]string{"network", "vm", "port", "list", "--world-id", wid})
   106  		if err != nil {
   107  			return "", err
   108  		}
   109  
   110  		for _, val := range res.Values {
   111  			if ip, ok := val["IPAddress"]; ok {
   112  				if ip[0] != any {
   113  					return ip[0], nil
   114  				}
   115  			}
   116  		}
   117  	}
   118  
   119  	return any, nil
   120  }