forked from Cloud-Foundations/Dominator
/
becomePrimaryVmOwner.go
43 lines (38 loc) · 1.11 KB
/
becomePrimaryVmOwner.go
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package main
import (
"fmt"
"net"
"github.com/Cloud-Foundations/Dominator/lib/errors"
"github.com/Cloud-Foundations/Dominator/lib/log"
proto "github.com/Cloud-Foundations/Dominator/proto/hypervisor"
)
func becomePrimaryVmOwnerSubcommand(args []string,
logger log.DebugLogger) error {
if err := becomePrimaryVmOwner(args[0], logger); err != nil {
return fmt.Errorf("error becoming primary VM owner: %s", err)
}
return nil
}
func becomePrimaryVmOwner(vmHostname string, logger log.DebugLogger) error {
if vmIP, hypervisor, err := lookupVmAndHypervisor(vmHostname); err != nil {
return err
} else {
return becomePrimaryVmOwnerOnHypervisor(hypervisor, vmIP, logger)
}
}
func becomePrimaryVmOwnerOnHypervisor(hypervisor string, ipAddr net.IP,
logger log.DebugLogger) error {
request := proto.BecomePrimaryVmOwnerRequest{ipAddr}
client, err := dialHypervisor(hypervisor)
if err != nil {
return err
}
defer client.Close()
var reply proto.BecomePrimaryVmOwnerResponse
err = client.RequestReply("Hypervisor.BecomePrimaryVmOwner", request,
&reply)
if err != nil {
return err
}
return errors.New(reply.Error)
}