github.com/Cloud-Foundations/Dominator@v0.3.4/cmd/hyper-control/getCapacity.go (about)

     1  package main
     2  
     3  import (
     4  	"fmt"
     5  	"os"
     6  
     7  	hyperclient "github.com/Cloud-Foundations/Dominator/hypervisor/client"
     8  	"github.com/Cloud-Foundations/Dominator/lib/errors"
     9  	"github.com/Cloud-Foundations/Dominator/lib/json"
    10  	"github.com/Cloud-Foundations/Dominator/lib/log"
    11  	"github.com/Cloud-Foundations/Dominator/lib/srpc"
    12  )
    13  
    14  func getCapacitySubcommand(args []string, logger log.DebugLogger) error {
    15  	err := getCapacity(logger)
    16  	if err != nil {
    17  		return fmt.Errorf("error getting capacity: %s", err)
    18  	}
    19  	return nil
    20  }
    21  
    22  func getCapacity(logger log.DebugLogger) error {
    23  	if *hypervisorHostname == "" {
    24  		return errors.New("hypervisorHostname unspecified")
    25  	}
    26  	clientName := fmt.Sprintf("%s:%d", *hypervisorHostname, *hypervisorPortNum)
    27  	client, err := srpc.DialHTTP("tcp", clientName, 0)
    28  	if err != nil {
    29  		return err
    30  	}
    31  	defer client.Close()
    32  	reply, err := hyperclient.GetCapacity(client)
    33  	if err != nil {
    34  		return err
    35  	}
    36  	return json.WriteWithIndent(os.Stdout, "    ", reply)
    37  }