forked from canonical/lxd
/
info.go
275 lines (222 loc) · 6.32 KB
/
info.go
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package main
import (
"fmt"
"io/ioutil"
"strings"
"gopkg.in/yaml.v2"
"github.com/lxc/lxd/client"
"github.com/lxc/lxd/lxc/config"
"github.com/lxc/lxd/shared"
"github.com/lxc/lxd/shared/gnuflag"
"github.com/lxc/lxd/shared/i18n"
)
type infoCmd struct {
showLog bool
resources bool
}
func (c *infoCmd) showByDefault() bool {
return true
}
func (c *infoCmd) usage() string {
return i18n.G(
`Usage: lxc info [<remote>:][<container>] [--show-log] [--resources]
Show container or server information.
lxc info [<remote>:]<container> [--show-log]
For container information.
lxc info [<remote>:] [--resources]
For LXD server information.`)
}
func (c *infoCmd) flags() {
gnuflag.BoolVar(&c.showLog, "show-log", false, i18n.G("Show the container's last 100 log lines?"))
gnuflag.BoolVar(&c.resources, "resources", false, i18n.G("Show the resources available to the server"))
}
func (c *infoCmd) run(conf *config.Config, args []string) error {
var remote string
var cName string
var err error
if len(args) == 1 {
remote, cName, err = conf.ParseRemote(args[0])
if err != nil {
return err
}
} else {
remote, cName, err = conf.ParseRemote("")
if err != nil {
return err
}
}
d, err := conf.GetContainerServer(remote)
if err != nil {
return err
}
if cName == "" {
return c.remoteInfo(d)
}
return c.containerInfo(d, conf.Remotes[remote], cName, c.showLog)
}
func (c *infoCmd) remoteInfo(d lxd.ContainerServer) error {
if c.resources {
resources, err := d.GetServerResources()
if err != nil {
return err
}
resourceData, err := yaml.Marshal(&resources)
if err != nil {
return err
}
fmt.Printf("%s", resourceData)
return nil
}
serverStatus, _, err := d.GetServer()
if err != nil {
return err
}
data, err := yaml.Marshal(&serverStatus)
if err != nil {
return err
}
fmt.Printf("%s", data)
return nil
}
func (c *infoCmd) containerInfo(d lxd.ContainerServer, remote config.Remote, name string, showLog bool) error {
ct, _, err := d.GetContainer(name)
if err != nil {
return err
}
cs, _, err := d.GetContainerState(name)
if err != nil {
return err
}
const layout = "2006/01/02 15:04 UTC"
fmt.Printf(i18n.G("Name: %s")+"\n", ct.Name)
if ct.Location != "" {
fmt.Printf(i18n.G("Location: %s")+"\n", ct.Location)
}
if remote.Addr != "" {
fmt.Printf(i18n.G("Remote: %s")+"\n", remote.Addr)
}
fmt.Printf(i18n.G("Architecture: %s")+"\n", ct.Architecture)
if shared.TimeIsSet(ct.CreatedAt) {
fmt.Printf(i18n.G("Created: %s")+"\n", ct.CreatedAt.UTC().Format(layout))
}
fmt.Printf(i18n.G("Status: %s")+"\n", ct.Status)
if ct.Ephemeral {
fmt.Printf(i18n.G("Type: ephemeral") + "\n")
} else {
fmt.Printf(i18n.G("Type: persistent") + "\n")
}
fmt.Printf(i18n.G("Profiles: %s")+"\n", strings.Join(ct.Profiles, ", "))
if cs.Pid != 0 {
fmt.Printf(i18n.G("Pid: %d")+"\n", cs.Pid)
// IP addresses
ipInfo := ""
if cs.Network != nil {
for netName, net := range cs.Network {
vethStr := ""
if net.HostName != "" {
vethStr = fmt.Sprintf("\t%s", net.HostName)
}
for _, addr := range net.Addresses {
ipInfo += fmt.Sprintf(" %s:\t%s\t%s%s\n", netName, addr.Family, addr.Address, vethStr)
}
}
}
if ipInfo != "" {
fmt.Println(i18n.G("Ips:"))
fmt.Printf(ipInfo)
}
fmt.Println(i18n.G("Resources:"))
// Processes
fmt.Printf(" "+i18n.G("Processes: %d")+"\n", cs.Processes)
// Disk usage
diskInfo := ""
if cs.Disk != nil {
for entry, disk := range cs.Disk {
if disk.Usage != 0 {
diskInfo += fmt.Sprintf(" %s: %s\n", entry, shared.GetByteSizeString(disk.Usage, 2))
}
}
}
if diskInfo != "" {
fmt.Println(fmt.Sprintf(" %s", i18n.G("Disk usage:")))
fmt.Printf(diskInfo)
}
// CPU usage
cpuInfo := ""
if cs.CPU.Usage != 0 {
cpuInfo += fmt.Sprintf(" %s: %v\n", i18n.G("CPU usage (in seconds)"), cs.CPU.Usage/1000000000)
}
if cpuInfo != "" {
fmt.Println(fmt.Sprintf(" %s", i18n.G("CPU usage:")))
fmt.Printf(cpuInfo)
}
// Memory usage
memoryInfo := ""
if cs.Memory.Usage != 0 {
memoryInfo += fmt.Sprintf(" %s: %s\n", i18n.G("Memory (current)"), shared.GetByteSizeString(cs.Memory.Usage, 2))
}
if cs.Memory.UsagePeak != 0 {
memoryInfo += fmt.Sprintf(" %s: %s\n", i18n.G("Memory (peak)"), shared.GetByteSizeString(cs.Memory.UsagePeak, 2))
}
if cs.Memory.SwapUsage != 0 {
memoryInfo += fmt.Sprintf(" %s: %s\n", i18n.G("Swap (current)"), shared.GetByteSizeString(cs.Memory.SwapUsage, 2))
}
if cs.Memory.SwapUsagePeak != 0 {
memoryInfo += fmt.Sprintf(" %s: %s\n", i18n.G("Swap (peak)"), shared.GetByteSizeString(cs.Memory.SwapUsagePeak, 2))
}
if memoryInfo != "" {
fmt.Println(fmt.Sprintf(" %s", i18n.G("Memory usage:")))
fmt.Printf(memoryInfo)
}
// Network usage
networkInfo := ""
if cs.Network != nil {
for netName, net := range cs.Network {
networkInfo += fmt.Sprintf(" %s:\n", netName)
networkInfo += fmt.Sprintf(" %s: %s\n", i18n.G("Bytes received"), shared.GetByteSizeString(net.Counters.BytesReceived, 2))
networkInfo += fmt.Sprintf(" %s: %s\n", i18n.G("Bytes sent"), shared.GetByteSizeString(net.Counters.BytesSent, 2))
networkInfo += fmt.Sprintf(" %s: %d\n", i18n.G("Packets received"), net.Counters.PacketsReceived)
networkInfo += fmt.Sprintf(" %s: %d\n", i18n.G("Packets sent"), net.Counters.PacketsSent)
}
}
if networkInfo != "" {
fmt.Println(fmt.Sprintf(" %s", i18n.G("Network usage:")))
fmt.Printf(networkInfo)
}
}
// List snapshots
firstSnapshot := true
snaps, err := d.GetContainerSnapshots(name)
if err != nil {
return nil
}
for _, snap := range snaps {
if firstSnapshot {
fmt.Println(i18n.G("Snapshots:"))
}
fields := strings.Split(snap.Name, shared.SnapshotDelimiter)
fmt.Printf(" %s", fields[len(fields)-1])
if shared.TimeIsSet(snap.CreationDate) {
fmt.Printf(" ("+i18n.G("taken at %s")+")", snap.CreationDate.UTC().Format(layout))
}
if snap.Stateful {
fmt.Printf(" (" + i18n.G("stateful") + ")")
} else {
fmt.Printf(" (" + i18n.G("stateless") + ")")
}
fmt.Printf("\n")
firstSnapshot = false
}
if showLog {
log, err := d.GetContainerLogfile(name, "lxc.log")
if err != nil {
return err
}
stuff, err := ioutil.ReadAll(log)
if err != nil {
return err
}
fmt.Printf("\n"+i18n.G("Log:")+"\n\n%s\n", string(stuff))
}
return nil
}