github.com/vmware/govmomi@v0.43.0/govc/host/date/info.go (about)

     1  /*
     2  Copyright (c) 2016-2023 VMware, Inc. All Rights Reserved.
     3  
     4  Licensed under the Apache License, Version 2.0 (the "License");
     5  you may not use this file except in compliance with the License.
     6  You may obtain a copy of the License at
     7  
     8  http://www.apache.org/licenses/LICENSE-2.0
     9  
    10  Unless required by applicable law or agreed to in writing, software
    11  distributed under the License is distributed on an "AS IS" BASIS,
    12  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
    13  See the License for the specific language governing permissions and
    14  limitations under the License.
    15  */
    16  
    17  package date
    18  
    19  import (
    20  	"context"
    21  	"flag"
    22  	"fmt"
    23  	"io"
    24  	"strings"
    25  	"text/tabwriter"
    26  	"time"
    27  
    28  	"github.com/vmware/govmomi/govc/cli"
    29  	"github.com/vmware/govmomi/govc/flags"
    30  	"github.com/vmware/govmomi/govc/host/service"
    31  	"github.com/vmware/govmomi/vim25/mo"
    32  	"github.com/vmware/govmomi/vim25/types"
    33  )
    34  
    35  type info struct {
    36  	*flags.HostSystemFlag
    37  	*flags.OutputFlag
    38  }
    39  
    40  func init() {
    41  	cli.Register("host.date.info", &info{})
    42  }
    43  
    44  func (cmd *info) Register(ctx context.Context, f *flag.FlagSet) {
    45  	cmd.HostSystemFlag, ctx = flags.NewHostSystemFlag(ctx)
    46  	cmd.HostSystemFlag.Register(ctx, f)
    47  
    48  	cmd.OutputFlag, ctx = flags.NewOutputFlag(ctx)
    49  	cmd.OutputFlag.Register(ctx, f)
    50  }
    51  
    52  func (cmd *info) Description() string {
    53  	return `Display date and time info for HOST.`
    54  }
    55  
    56  func (cmd *info) Process(ctx context.Context) error {
    57  	if err := cmd.HostSystemFlag.Process(ctx); err != nil {
    58  		return err
    59  	}
    60  	if err := cmd.OutputFlag.Process(ctx); err != nil {
    61  		return err
    62  	}
    63  	return nil
    64  }
    65  
    66  type dateInfo struct {
    67  	types.HostDateTimeInfo
    68  	Service *types.HostService `json:"service"`
    69  	Current *time.Time         `json:"current"`
    70  }
    71  
    72  func (info *dateInfo) servers() string {
    73  	if len(info.NtpConfig.Server) == 0 {
    74  		return "None"
    75  	}
    76  	return strings.Join(info.NtpConfig.Server, ", ")
    77  }
    78  
    79  func (info *dateInfo) Write(w io.Writer) error {
    80  	tw := tabwriter.NewWriter(w, 2, 0, 2, ' ', 0)
    81  
    82  	fmt.Fprintf(tw, "Current date and time:\t%s\n", info.Current.Format(time.UnixDate))
    83  	if info.Service != nil {
    84  		fmt.Fprintf(tw, "NTP client status:\t%s\n", service.Policy(*info.Service))
    85  		fmt.Fprintf(tw, "NTP service status:\t%s\n", service.Status(*info.Service))
    86  	}
    87  	fmt.Fprintf(tw, "NTP servers:\t%s\n", info.servers())
    88  
    89  	return tw.Flush()
    90  }
    91  
    92  func (cmd *info) Run(ctx context.Context, f *flag.FlagSet) error {
    93  	host, err := cmd.HostSystem()
    94  	if err != nil {
    95  		return err
    96  	}
    97  
    98  	s, err := host.ConfigManager().DateTimeSystem(ctx)
    99  	if err != nil {
   100  		return err
   101  	}
   102  
   103  	var hs mo.HostDateTimeSystem
   104  	if err = s.Properties(ctx, s.Reference(), nil, &hs); err != nil {
   105  		return nil
   106  	}
   107  
   108  	ss, err := host.ConfigManager().ServiceSystem(ctx)
   109  	if err != nil {
   110  		return err
   111  	}
   112  
   113  	services, err := ss.Service(ctx)
   114  	if err != nil {
   115  		return err
   116  	}
   117  
   118  	res := &dateInfo{HostDateTimeInfo: hs.DateTimeInfo}
   119  
   120  	for i, service := range services {
   121  		if service.Key == "ntpd" {
   122  			res.Service = &services[i]
   123  			break
   124  		}
   125  	}
   126  
   127  	res.Current, err = s.Query(ctx)
   128  	if err != nil {
   129  		return err
   130  	}
   131  
   132  	return cmd.WriteResult(res)
   133  }