github.com/vmware/govmomi@v0.43.0/govc/vm/network/change.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 network
    18  
    19  import (
    20  	"context"
    21  	"errors"
    22  	"flag"
    23  	"fmt"
    24  
    25  	"github.com/vmware/govmomi/govc/cli"
    26  	"github.com/vmware/govmomi/govc/flags"
    27  )
    28  
    29  type change struct {
    30  	*flags.VirtualMachineFlag
    31  	*flags.NetworkFlag
    32  }
    33  
    34  func init() {
    35  	cli.Register("vm.network.change", &change{})
    36  }
    37  
    38  func (cmd *change) Register(ctx context.Context, f *flag.FlagSet) {
    39  	cmd.VirtualMachineFlag, ctx = flags.NewVirtualMachineFlag(ctx)
    40  	cmd.VirtualMachineFlag.Register(ctx, f)
    41  	cmd.NetworkFlag, ctx = flags.NewNetworkFlag(ctx)
    42  	cmd.NetworkFlag.Register(ctx, f)
    43  }
    44  
    45  func (cmd *change) Process(ctx context.Context) error {
    46  	if err := cmd.VirtualMachineFlag.Process(ctx); err != nil {
    47  		return err
    48  	}
    49  	if err := cmd.NetworkFlag.Process(ctx); err != nil {
    50  		return err
    51  	}
    52  	return nil
    53  }
    54  
    55  func (cmd *change) Usage() string {
    56  	return "DEVICE"
    57  }
    58  
    59  func (cmd *change) Description() string {
    60  	return `Change network DEVICE configuration.
    61  
    62  Note that '-net' is currently required with '-net.address', even when not changing the VM network.
    63  
    64  Examples:
    65    govc vm.network.change -vm $vm -net PG2 ethernet-0
    66    govc vm.network.change -vm $vm -net PG2 -net.address 00:00:0f:2e:5d:69 ethernet-0 # set to manual MAC address
    67    govc vm.network.change -vm $vm -net PG2 -net.address - ethernet-0 # set to generated MAC address
    68    govc device.info -vm $vm ethernet-*`
    69  }
    70  
    71  func (cmd *change) Run(ctx context.Context, f *flag.FlagSet) error {
    72  	vm, err := cmd.VirtualMachineFlag.VirtualMachine()
    73  	if err != nil {
    74  		return err
    75  	}
    76  
    77  	if vm == nil {
    78  		return errors.New("please specify a vm")
    79  	}
    80  
    81  	name := f.Arg(0)
    82  
    83  	if name == "" {
    84  		return errors.New("please specify a device name")
    85  	}
    86  
    87  	// Set network if specified as extra argument.
    88  	if f.NArg() > 1 {
    89  		err = cmd.NetworkFlag.Set(f.Arg(1))
    90  		if err != nil {
    91  			return fmt.Errorf("couldn't set specified network %v",
    92  				err)
    93  		}
    94  	}
    95  
    96  	devices, err := vm.Device(ctx)
    97  	if err != nil {
    98  		return err
    99  	}
   100  
   101  	net := devices.Find(name)
   102  
   103  	if net == nil {
   104  		return fmt.Errorf("device '%s' not found", name)
   105  	}
   106  
   107  	dev, err := cmd.NetworkFlag.Device()
   108  	if err != nil {
   109  		return err
   110  	}
   111  
   112  	cmd.NetworkFlag.Change(net, dev)
   113  
   114  	return vm.EditDevice(ctx, net)
   115  }