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
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
|
/*
Copyright (c) 2014-2015 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 host
import (
"context"
"flag"
"fmt"
"io"
"os"
"text/tabwriter"
"github.com/vmware/govmomi/govc/cli"
"github.com/vmware/govmomi/govc/flags"
"github.com/vmware/govmomi/object"
"github.com/vmware/govmomi/property"
"github.com/vmware/govmomi/vim25/mo"
"github.com/vmware/govmomi/vim25/types"
)
type info struct {
*flags.ClientFlag
*flags.OutputFlag
*flags.HostSystemFlag
}
func init() {
cli.Register("host.info", &info{})
}
func (cmd *info) Register(ctx context.Context, f *flag.FlagSet) {
cmd.ClientFlag, ctx = flags.NewClientFlag(ctx)
cmd.ClientFlag.Register(ctx, f)
cmd.OutputFlag, ctx = flags.NewOutputFlag(ctx)
cmd.OutputFlag.Register(ctx, f)
cmd.HostSystemFlag, ctx = flags.NewHostSystemFlag(ctx)
cmd.HostSystemFlag.Register(ctx, f)
}
func (cmd *info) Process(ctx context.Context) error {
if err := cmd.ClientFlag.Process(ctx); err != nil {
return err
}
if err := cmd.OutputFlag.Process(ctx); err != nil {
return err
}
if err := cmd.HostSystemFlag.Process(ctx); err != nil {
return err
}
return nil
}
func (cmd *info) Run(ctx context.Context, f *flag.FlagSet) error {
c, err := cmd.Client()
if err != nil {
return err
}
var res infoResult
var props []string
if cmd.OutputFlag.All() {
props = nil // Load everything
} else {
props = []string{"summary"} // Load summary
}
// We could do without the -host flag, leaving it for compat
host, err := cmd.HostSystemIfSpecified()
if err != nil {
return err
}
// Default only if there is a single host
if host == nil && f.NArg() == 0 {
host, err = cmd.HostSystem()
if err != nil {
return err
}
}
if host != nil {
res.objects = append(res.objects, host)
} else {
res.objects, err = cmd.HostSystems(f.Args())
if err != nil {
return err
}
}
if len(res.objects) != 0 {
refs := make([]types.ManagedObjectReference, 0, len(res.objects))
for _, o := range res.objects {
refs = append(refs, o.Reference())
}
pc := property.DefaultCollector(c)
err = pc.Retrieve(ctx, refs, props, &res.HostSystems)
if err != nil {
return err
}
}
return cmd.WriteResult(&res)
}
type infoResult struct {
HostSystems []mo.HostSystem
objects []*object.HostSystem
}
func (r *infoResult) Write(w io.Writer) error {
// Maintain order via r.objects as Property collector does not always return results in order.
objects := make(map[types.ManagedObjectReference]mo.HostSystem, len(r.HostSystems))
for _, o := range r.HostSystems {
objects[o.Reference()] = o
}
tw := tabwriter.NewWriter(os.Stdout, 2, 0, 2, ' ', 0)
for _, o := range r.objects {
host := objects[o.Reference()]
s := host.Summary
h := s.Hardware
z := s.QuickStats
ncpu := int32(h.NumCpuCores)
cpuUsage := 100 * float64(z.OverallCpuUsage) / float64(ncpu*h.CpuMhz)
memUsage := 100 * float64(z.OverallMemoryUsage) / float64(h.MemorySize>>20)
fmt.Fprintf(tw, "Name:\t%s\n", s.Config.Name)
fmt.Fprintf(tw, " Path:\t%s\n", o.InventoryPath)
fmt.Fprintf(tw, " Manufacturer:\t%s\n", h.Vendor)
fmt.Fprintf(tw, " Logical CPUs:\t%d CPUs @ %dMHz\n", ncpu, h.CpuMhz)
fmt.Fprintf(tw, " Processor type:\t%s\n", h.CpuModel)
fmt.Fprintf(tw, " CPU usage:\t%d MHz (%.1f%%)\n", z.OverallCpuUsage, cpuUsage)
fmt.Fprintf(tw, " Memory:\t%dMB\n", h.MemorySize/(1024*1024))
fmt.Fprintf(tw, " Memory usage:\t%d MB (%.1f%%)\n", z.OverallMemoryUsage, memUsage)
fmt.Fprintf(tw, " Boot time:\t%s\n", s.Runtime.BootTime)
if s.Runtime.InMaintenanceMode {
fmt.Fprint(tw, " State: Maintenance Mode")
} else {
fmt.Fprintf(tw, " State:\t%s\n", s.Runtime.ConnectionState)
}
}
return tw.Flush()
}
|
