github.com/vmware/govmomi@v0.51.0/examples/alarms/main.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 main
     6  
     7  import (
     8  	"context"
     9  	"flag"
    10  	"fmt"
    11  
    12  	"github.com/dougm/pretty"
    13  
    14  	"github.com/vmware/govmomi/examples"
    15  	"github.com/vmware/govmomi/property"
    16  	"github.com/vmware/govmomi/vim25"
    17  	"github.com/vmware/govmomi/vim25/methods"
    18  	"github.com/vmware/govmomi/vim25/mo"
    19  	"github.com/vmware/govmomi/vim25/types"
    20  )
    21  
    22  func main() {
    23  	var limit int
    24  	flag.IntVar(&limit, "limit", 10, "maximum number of alarms to retrieve")
    25  
    26  	examples.Run(func(ctx context.Context, c *vim25.Client) error {
    27  		pc := property.DefaultCollector(c)
    28  		am := c.ServiceContent.AlarmManager
    29  
    30  		fmt.Println("retrieving all alarms")
    31  		alarms, err := methods.GetAlarm(ctx, c, &types.GetAlarm{
    32  			This:   *am,
    33  			Entity: nil, // if not set, alarms are returned for all visible entities
    34  		})
    35  		if err != nil {
    36  			return fmt.Errorf("could not get alarms: %w", err)
    37  		}
    38  
    39  		counter := 0
    40  		for _, a := range alarms.Returnval {
    41  			counter++
    42  			fmt.Printf("retrieving details for alarm %q\n", a.String())
    43  
    44  			var info mo.Alarm
    45  			if err = pc.RetrieveOne(ctx, a, nil, &info); err != nil {
    46  				return fmt.Errorf("retrieve alarm info: %w", err)
    47  			}
    48  
    49  			_, err = pretty.Println(info)
    50  			if err != nil {
    51  				return fmt.Errorf("print alarm: %w", err)
    52  			}
    53  
    54  			if counter == limit {
    55  				fmt.Printf("reached maximum number of alarms to read (limit=%d)\n", limit)
    56  				break
    57  			}
    58  		}
    59  
    60  		return nil
    61  	})
    62  }