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/*
Copyright (c) 2020 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 volume
import (
"context"
"flag"
"fmt"
"io"
"log"
"text/tabwriter"
"github.com/vmware/govmomi/cns"
"github.com/vmware/govmomi/cns/types"
"github.com/vmware/govmomi/govc/cli"
"github.com/vmware/govmomi/govc/flags"
"github.com/vmware/govmomi/units"
vim "github.com/vmware/govmomi/vim25/types"
)
type ls struct {
*flags.ClientFlag
*flags.DatastoreFlag
*flags.OutputFlag
types.CnsQueryFilter
long bool
id bool
disk bool
}
func init() {
cli.Register("volume.ls", &ls{})
}
func (cmd *ls) Register(ctx context.Context, f *flag.FlagSet) {
cmd.ClientFlag, ctx = flags.NewClientFlag(ctx)
cmd.ClientFlag.Register(ctx, f)
cmd.DatastoreFlag, ctx = flags.NewDatastoreFlag(ctx)
cmd.DatastoreFlag.Register(ctx, f)
cmd.OutputFlag, ctx = flags.NewOutputFlag(ctx)
cmd.OutputFlag.Register(ctx, f)
f.BoolVar(&cmd.long, "l", false, "Long listing format")
f.BoolVar(&cmd.id, "i", false, "List volume ID only")
f.BoolVar(&cmd.disk, "L", false, "List volume disk or file backing ID only")
}
func (cmd *ls) Process(ctx context.Context) error {
if err := cmd.ClientFlag.Process(ctx); err != nil {
return err
}
if err := cmd.DatastoreFlag.Process(ctx); err != nil {
return err
}
return cmd.OutputFlag.Process(ctx)
}
func (cmd *ls) Usage() string {
return "[ID...]"
}
func (cmd *ls) Description() string {
return `List CNS volumes.
Examples:
govc volume.ls
govc volume.ls -l
govc volume.ls -ds vsanDatastore
govc volume.ls df86393b-5ae0-4fca-87d0-b692dbc67d45
govc disk.ls -l $(govc volume.ls -L pvc-9744a4ff-07f4-43c4-b8ed-48ea7a528734)`
}
type lsWriter struct {
Volume []types.CnsVolume
cmd *ls
}
func (r *lsWriter) Write(w io.Writer) error {
if r.cmd.id {
for _, volume := range r.Volume {
fmt.Fprintln(r.cmd.Out, volume.VolumeId.Id)
}
return nil
}
if r.cmd.disk {
for _, volume := range r.Volume {
var id string
switch backing := volume.BackingObjectDetails.(type) {
case *types.CnsBlockBackingDetails:
id = backing.BackingDiskId
case *types.CnsFileBackingDetails:
id = backing.BackingFileId
case *types.CnsVsanFileShareBackingDetails:
id = backing.Name
default:
log.Printf("%s unknown backing type: %T", volume.VolumeId.Id, backing)
}
fmt.Fprintln(r.cmd.Out, id)
}
return nil
}
tw := tabwriter.NewWriter(r.cmd.Out, 2, 0, 2, ' ', 0)
for _, volume := range r.Volume {
fmt.Printf("%s\t%s", volume.VolumeId.Id, volume.Name)
if r.cmd.long {
capacity := volume.BackingObjectDetails.GetCnsBackingObjectDetails().CapacityInMb
c := volume.Metadata.ContainerCluster
fmt.Printf("\t%s\t%s\t%s", units.ByteSize(capacity*1024*1024), c.ClusterType, c.ClusterId)
}
fmt.Println()
}
return tw.Flush()
}
func (cmd *ls) Run(ctx context.Context, f *flag.FlagSet) error {
vc, err := cmd.Client()
if err != nil {
return err
}
_ = vc.UseServiceVersion("vsan")
ds, err := cmd.DatastoreIfSpecified()
if err != nil {
return err
}
if ds != nil {
cmd.Datastores = []vim.ManagedObjectReference{ds.Reference()}
}
c, err := cns.NewClient(ctx, vc)
if err != nil {
return err
}
for _, arg := range f.Args() {
cmd.VolumeIds = append(cmd.VolumeIds, types.CnsVolumeId{Id: arg})
}
var volumes []types.CnsVolume
for {
res, err := c.QueryVolume(ctx, cmd.CnsQueryFilter)
if err != nil {
return err
}
volumes = append(volumes, res.Volumes...)
if res.Cursor.Offset == res.Cursor.TotalRecords || len(res.Volumes) == 0 {
break
}
cmd.Cursor = &res.Cursor
}
return cmd.WriteResult(&lsWriter{volumes, cmd})
}
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