forked from vmware/govmomi
/
host_system.go
113 lines (90 loc) · 2.45 KB
/
host_system.go
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
/*
Copyright (c) 2014 VMware, Inc. All Rights Reserved.
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
*/
package flags
import (
"flag"
"fmt"
"os"
"sync"
"github.com/juju/govmomi/object"
"golang.org/x/net/context"
)
type HostSystemFlag struct {
*ClientFlag
*DatacenterFlag
*SearchFlag
register sync.Once
name string
host *object.HostSystem
pool *object.ResourcePool
}
func (flag *HostSystemFlag) Register(f *flag.FlagSet) {
flag.SearchFlag = NewSearchFlag(SearchHosts)
flag.register.Do(func() {
env := "GOVC_HOST"
value := os.Getenv(env)
usage := fmt.Sprintf("Host system [%s]", env)
f.StringVar(&flag.name, "host", value, usage)
})
}
func (flag *HostSystemFlag) Process() error {
return nil
}
func (flag *HostSystemFlag) HostSystemIfSpecified() (*object.HostSystem, error) {
if flag.host != nil {
return flag.host, nil
}
// Use search flags if specified.
if flag.SearchFlag.IsSet() {
host, err := flag.SearchFlag.HostSystem()
if err != nil {
return nil, err
}
flag.host = host
return flag.host, nil
}
// Never look for a default host system.
// A host system parameter is optional for vm creation. It uses a mandatory
// resource pool parameter to determine where the vm should be placed.
if flag.name == "" {
return nil, nil
}
finder, err := flag.Finder()
if err != nil {
return nil, err
}
flag.host, err = finder.HostSystem(context.TODO(), flag.name)
return flag.host, err
}
func (flag *HostSystemFlag) HostSystem() (*object.HostSystem, error) {
host, err := flag.HostSystemIfSpecified()
if err != nil {
return nil, err
}
if host != nil {
return host, nil
}
finder, err := flag.Finder()
if err != nil {
return nil, err
}
flag.host, err = finder.DefaultHostSystem(context.TODO())
return flag.host, err
}
func (flag *HostSystemFlag) HostNetworkSystem() (*object.HostNetworkSystem, error) {
host, err := flag.HostSystem()
if err != nil {
return nil, err
}
return host.ConfigManager().NetworkSystem(context.TODO())
}