github.com/vmware/govmomi@v0.51.0/cli/host/date/info.go (about)

     1  // © Broadcom. All Rights Reserved.
     2  // The term “Broadcom” refers to Broadcom Inc. and/or its subsidiaries.
     3  // SPDX-License-Identifier: Apache-2.0
     4  
     5  package date
     6  
     7  import (
     8  	"context"
     9  	"flag"
    10  	"fmt"
    11  	"io"
    12  	"strings"
    13  	"text/tabwriter"
    14  	"time"
    15  
    16  	"github.com/vmware/govmomi/cli"
    17  	"github.com/vmware/govmomi/cli/flags"
    18  	"github.com/vmware/govmomi/cli/host/service"
    19  	"github.com/vmware/govmomi/vim25/mo"
    20  	"github.com/vmware/govmomi/vim25/types"
    21  )
    22  
    23  type info struct {
    24  	*flags.HostSystemFlag
    25  	*flags.OutputFlag
    26  }
    27  
    28  func init() {
    29  	cli.Register("host.date.info", &info{})
    30  }
    31  
    32  func (cmd *info) Register(ctx context.Context, f *flag.FlagSet) {
    33  	cmd.HostSystemFlag, ctx = flags.NewHostSystemFlag(ctx)
    34  	cmd.HostSystemFlag.Register(ctx, f)
    35  
    36  	cmd.OutputFlag, ctx = flags.NewOutputFlag(ctx)
    37  	cmd.OutputFlag.Register(ctx, f)
    38  }
    39  
    40  func (cmd *info) Description() string {
    41  	return `Display date and time info for HOST.`
    42  }
    43  
    44  func (cmd *info) Process(ctx context.Context) error {
    45  	if err := cmd.HostSystemFlag.Process(ctx); err != nil {
    46  		return err
    47  	}
    48  	if err := cmd.OutputFlag.Process(ctx); err != nil {
    49  		return err
    50  	}
    51  	return nil
    52  }
    53  
    54  type dateInfo struct {
    55  	types.HostDateTimeInfo
    56  	Service *types.HostService `json:"service"`
    57  	Current *time.Time         `json:"current"`
    58  }
    59  
    60  func (info *dateInfo) servers() string {
    61  	if len(info.NtpConfig.Server) == 0 {
    62  		return "None"
    63  	}
    64  	return strings.Join(info.NtpConfig.Server, ", ")
    65  }
    66  
    67  func (info *dateInfo) Write(w io.Writer) error {
    68  	tw := tabwriter.NewWriter(w, 2, 0, 2, ' ', 0)
    69  
    70  	fmt.Fprintf(tw, "Current date and time:\t%s\n", info.Current.Format(time.UnixDate))
    71  	if info.Service != nil {
    72  		fmt.Fprintf(tw, "NTP client status:\t%s\n", service.Policy(*info.Service))
    73  		fmt.Fprintf(tw, "NTP service status:\t%s\n", service.Status(*info.Service))
    74  	}
    75  	fmt.Fprintf(tw, "NTP servers:\t%s\n", info.servers())
    76  
    77  	return tw.Flush()
    78  }
    79  
    80  func (cmd *info) Run(ctx context.Context, f *flag.FlagSet) error {
    81  	host, err := cmd.HostSystem()
    82  	if err != nil {
    83  		return err
    84  	}
    85  
    86  	s, err := host.ConfigManager().DateTimeSystem(ctx)
    87  	if err != nil {
    88  		return err
    89  	}
    90  
    91  	var hs mo.HostDateTimeSystem
    92  	if err = s.Properties(ctx, s.Reference(), nil, &hs); err != nil {
    93  		return nil
    94  	}
    95  
    96  	ss, err := host.ConfigManager().ServiceSystem(ctx)
    97  	if err != nil {
    98  		return err
    99  	}
   100  
   101  	services, err := ss.Service(ctx)
   102  	if err != nil {
   103  		return err
   104  	}
   105  
   106  	res := &dateInfo{HostDateTimeInfo: hs.DateTimeInfo}
   107  
   108  	for i, service := range services {
   109  		if service.Key == "ntpd" {
   110  			res.Service = &services[i]
   111  			break
   112  		}
   113  	}
   114  
   115  	res.Current, err = s.Query(ctx)
   116  	if err != nil {
   117  		return err
   118  	}
   119  
   120  	return cmd.WriteResult(res)
   121  }