github.com/cloud-foundations/dominator@v0.0.0-20221004181915-6e4fee580046/cmd/vm-control/discardVmOldUserData.go (about)

     1  package main
     2  
     3  import (
     4  	"fmt"
     5  	"net"
     6  
     7  	"github.com/Cloud-Foundations/Dominator/lib/errors"
     8  	"github.com/Cloud-Foundations/Dominator/lib/log"
     9  	proto "github.com/Cloud-Foundations/Dominator/proto/hypervisor"
    10  )
    11  
    12  func discardVmOldUserDataSubcommand(args []string,
    13  	logger log.DebugLogger) error {
    14  	if err := discardVmOldUserData(args[0], logger); err != nil {
    15  		return fmt.Errorf("Error discarding VM old user data: %s", err)
    16  	}
    17  	return nil
    18  }
    19  
    20  func discardVmOldUserData(vmHostname string, logger log.DebugLogger) error {
    21  	if vmIP, hypervisor, err := lookupVmAndHypervisor(vmHostname); err != nil {
    22  		return err
    23  	} else {
    24  		return discardVmOldUserDataOnHypervisor(hypervisor, vmIP, logger)
    25  	}
    26  }
    27  
    28  func discardVmOldUserDataOnHypervisor(hypervisor string, ipAddr net.IP,
    29  	logger log.DebugLogger) error {
    30  	request := proto.DiscardVmOldUserDataRequest{ipAddr}
    31  	client, err := dialHypervisor(hypervisor)
    32  	if err != nil {
    33  		return err
    34  	}
    35  	defer client.Close()
    36  	var reply proto.DiscardVmOldUserDataResponse
    37  	err = client.RequestReply("Hypervisor.DiscardVmOldUserData", request,
    38  		&reply)
    39  	if err != nil {
    40  		return err
    41  	}
    42  	return errors.New(reply.Error)
    43  }