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// Copyright 2016 The go-qemu Authors.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package main
import (
"flag"
"fmt"
"log"
"net"
"time"
"github.com/digitalocean/go-qemu/qemu"
"github.com/digitalocean/go-qemu/qmp"
)
var (
network = flag.String("network", "unix", `Named network used to connect on. For Unix sockets -network=unix, for TCP connections: -network=tcp`)
address = flag.String("address", "/var/run/libvirt/libvirt-sock", `Address of the hypervisor. This could be in the form of Unix or TCP sockets. For TCP connections: -address="host:16509"`)
timeout = flag.Duration("timeout", 2*time.Second, "Connection timeout. Another valid value could be -timeout=500ms")
domainName = flag.String("domainName", "mydomain", "This is the domain to get details for.")
)
func main() {
flag.Parse()
fmt.Printf("\nConnecting to %s://%s\n", *network, *address)
c, err := net.DialTimeout(*network, *address, *timeout)
if err != nil {
log.Fatalf("failed to connect to hypervisor: %v", err)
}
mon := qmp.NewLibvirtRPCMonitor(*domainName, c)
if err := mon.Connect(); err != nil {
log.Fatalf("failed to connect: %v", err)
}
domain, err := qemu.NewDomain(mon, *domainName)
if err != nil {
log.Fatalf("failed to create domain object: %v", err)
}
defer domain.Close()
version, err := domain.Version()
if err != nil {
log.Fatalf("Error getting Domain Version: %v\n", err)
}
fmt.Printf("\nVersion: %s\n", version)
status, err := domain.Status()
if err != nil {
log.Fatalf("Error getting Domain Status: %v\n", err)
}
fmt.Printf("\nStatus: %s\n", status)
displayPCIDevices(domain)
displayBlockDevices(domain)
}
func displayPCIDevices(domain *qemu.Domain) {
pciDevices, err := domain.PCIDevices()
if err != nil {
log.Fatalf("Error getting PCIDevices: %v\n", pciDevices)
}
fmt.Printf("\n[ PCIDevices ]\n")
fmt.Printf("======================================\n")
fmt.Printf("%10s %20s\n", "[ID]", "[Description]")
fmt.Printf("======================================\n")
for _, pciDevice := range pciDevices {
fmt.Printf("[%10s] [%20s]\n", pciDevice.QdevID, pciDevice.ClassInfo.Desc)
}
}
func displayBlockDevices(domain *qemu.Domain) {
blockDevices, err := domain.BlockDevices()
if err != nil {
log.Fatalf("Error getting blockDevices: %v\n", blockDevices)
}
fmt.Printf("\n[ BlockDevices ]\n")
fmt.Printf("========================================================================\n")
fmt.Printf("%20s %8s %30s\n", "Device", "Driver", "File")
fmt.Printf("========================================================================\n")
for _, blockDevice := range blockDevices {
fmt.Printf("%20s %8s %30s\n",
blockDevice.Device, blockDevice.Inserted.Driver, blockDevice.Inserted.File)
}
}
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