forked from vmware/govmomi
/
info.go
151 lines (120 loc) · 3.46 KB
/
info.go
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/*
Copyright (c) 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 vapp
import (
"flag"
"fmt"
"io"
"text/tabwriter"
"github.com/vmware/govmomi/govc/cli"
"github.com/vmware/govmomi/govc/flags"
"github.com/vmware/govmomi/property"
"github.com/vmware/govmomi/vim25/mo"
"github.com/vmware/govmomi/vim25/types"
"golang.org/x/net/context"
)
type info struct {
*flags.DatacenterFlag
*flags.OutputFlag
}
func init() {
cli.Register("vapp.info", &info{})
}
func (cmd *info) Register(ctx context.Context, f *flag.FlagSet) {
cmd.DatacenterFlag, ctx = flags.NewDatacenterFlag(ctx)
cmd.DatacenterFlag.Register(ctx, f)
cmd.OutputFlag, ctx = flags.NewOutputFlag(ctx)
cmd.OutputFlag.Register(ctx, f)
}
func (cmd *info) Process(ctx context.Context) error {
if err := cmd.DatacenterFlag.Process(ctx); err != nil {
return err
}
if err := cmd.OutputFlag.Process(ctx); err != nil {
return err
}
return nil
}
func (cmd *info) Usage() string {
return "VAPP..."
}
func (cmd *info) Run(ctx context.Context, f *flag.FlagSet) error {
if f.NArg() == 0 {
return flag.ErrHelp
}
c, err := cmd.Client()
if err != nil {
return err
}
finder, err := cmd.Finder()
if err != nil {
return err
}
var res infoResult
var props []string
if cmd.OutputFlag.JSON {
props = nil
} else {
props = []string{
"name",
"config.cpuAllocation",
"config.memoryAllocation",
"runtime.cpu",
"runtime.memory",
}
}
for _, arg := range f.Args() {
vapps, err := finder.VirtualAppList(context.TODO(), arg)
if err != nil {
return err
}
for _, vapp := range vapps {
var p mo.VirtualApp
pc := property.DefaultCollector(c)
err = pc.RetrieveOne(context.TODO(), vapp.Reference(), props, &p)
if err != nil {
return err
}
res.VApps = append(res.VApps, p)
}
}
return cmd.WriteResult(&res)
}
type infoResult struct {
VApps []mo.VirtualApp
}
func (r *infoResult) Write(w io.Writer) error {
tw := tabwriter.NewWriter(w, 2, 0, 2, ' ', 0)
for _, vapp := range r.VApps {
fmt.Fprintf(tw, "Name:\t%s\n", vapp.Name)
writeInfo(tw, "CPU", "MHz", &vapp.Runtime.Cpu, vapp.Config.CpuAllocation)
writeInfo(tw, "Mem", "MB", &vapp.Runtime.Memory, vapp.Config.MemoryAllocation)
}
return tw.Flush()
}
func writeInfo(w io.Writer, name string, units string, ru *types.ResourcePoolResourceUsage, b types.BaseResourceAllocationInfo) {
ra := b.GetResourceAllocationInfo()
usage := 100.0 * float64(ru.OverallUsage) / float64(ru.MaxUsage)
shares := ""
limit := "unlimited"
if ra.Shares.Level == types.SharesLevelCustom {
shares = fmt.Sprintf(" (%d)", ra.Shares.Shares)
}
if ra.Limit != -1 {
limit = fmt.Sprintf("%d%s", ra.Limit, units)
}
fmt.Fprintf(w, " %s Usage:\t%d%s (%0.1f%%)\n", name, ru.OverallUsage, units, usage)
fmt.Fprintf(w, " %s Shares:\t%s%s\n", name, ra.Shares.Level, shares)
fmt.Fprintf(w, " %s Reservation:\t%d%s (expandable=%v)\n", name, ra.Reservation, units, *ra.ExpandableReservation)
fmt.Fprintf(w, " %s Limit:\t%s\n", name, limit)
}