forked from Cloud-Foundations/Dominator
/
getVmVolume.go
41 lines (36 loc) · 1.02 KB
/
getVmVolume.go
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package main
import (
"fmt"
"net"
"github.com/Cloud-Foundations/Dominator/lib/log"
)
func getVmVolumeSubcommand(args []string, logger log.DebugLogger) error {
if err := getVmVolume(args[0], logger); err != nil {
return fmt.Errorf("error getting VM volume: %s", err)
}
return nil
}
func getVmVolume(vmHostname string, logger log.DebugLogger) error {
if vmIP, hypervisor, err := lookupVmAndHypervisor(vmHostname); err != nil {
return err
} else {
return getVmVolumeOnHypervisor(hypervisor, vmIP, logger)
}
}
func getVmVolumeOnHypervisor(hypervisor string, ipAddr net.IP,
logger log.DebugLogger) error {
client, err := dialHypervisor(hypervisor)
if err != nil {
return err
}
defer client.Close()
vmInfo, err := getVmInfoClient(client, ipAddr)
if err != nil {
return err
}
if *volumeIndex >= uint(len(vmInfo.Volumes)) {
return fmt.Errorf("volumeIndex too large")
}
return copyVolumeToVmSaver(&directorySaver{filename: *volumeFilename},
client, ipAddr, *volumeIndex, vmInfo.Volumes[*volumeIndex].Size, logger)
}