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opennebula-exporter.go
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opennebula-exporter.go
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package main
import (
"fmt"
"github.com/OpenNebula/one/src/oca/go/src/goca"
"github.com/OpenNebula/one/src/oca/go/src/goca/schemas/vm"
"net/http"
"gopkg.in/alecthomas/kingpin.v2"
"os"
log "github.com/Sirupsen/logrus"
"github.com/prometheus/client_golang/prometheus"
"github.com/prometheus/client_golang/prometheus/promhttp"
"strconv"
)
const (
endpoint = "http://localhost:2633/RPC2"
user = "oneadmin"
pass = "opennebula"
)
type PoweroneNode struct {
Id int
State string
Name string
Url string
LogIndex int
Commit int
Term int
}
type PoweroneCluster struct {
PoweroneNodes []PoweroneNode
}
type oneCollector struct {
oneServerRaftStatusTermDesc *prometheus.Desc
oneServerRaftStatusVotedforDesc *prometheus.Desc
oneServerRaftStatusCommitDesc *prometheus.Desc
oneServerRaftStatusLogIndexDesc *prometheus.Desc
oneServerRaftStatusFedlogIndexDesc *prometheus.Desc
oneServerRaftStatusSyncedDesc *prometheus.Desc
oneVmListDesc *prometheus.Desc
oneVmNicListDesc *prometheus.Desc
oneVmDiskListDesc *prometheus.Desc
oneVmGraphicDesc *prometheus.Desc
oneVmOsDesc *prometheus.Desc
}
func newoneCollector() *oneCollector {
return &oneCollector {
oneServerRaftStatusTermDesc: prometheus.NewDesc("oneServerRaftStatusTerm",
"Shows opennebula raft term",
[]string{"metricname","host","state","id","endpoint"},
nil,
),
oneServerRaftStatusVotedforDesc: prometheus.NewDesc("oneServerRaftStatusVotedfor",
"Shows opennebula raft voted for",
[]string{"metricname","host","state","id","endpoint"},
nil,
),
oneServerRaftStatusCommitDesc: prometheus.NewDesc("oneServerRaftStatusCommit",
"Shows opennebula raft commit",
[]string{"metricname","host","state","id","endpoint"},
nil,
),
oneServerRaftStatusLogIndexDesc: prometheus.NewDesc("oneServerRaftStatusLogIndex",
"Shows opennebula raft log index",
[]string{"metricname","host","state","id","endpoint"},
nil,
),
oneServerRaftStatusFedlogIndexDesc: prometheus.NewDesc("oneServerRaftStatusFedlogIndex",
"Shows opennebula raft fedlog index",
[]string{"metricname","host","state","id","endpoint"},
nil,
),
oneServerRaftStatusSyncedDesc: prometheus.NewDesc("oneServerRaftStatusSyncedDesc",
"Shows opennebula raft fedlog index",
[]string{"metricname","host","state","id","endpoint","term","index","commit"},
nil,
),
oneVmListDesc: prometheus.NewDesc("oneVmListDesc",
"Shows opennebula virtual machine status",
[]string{"metricname","id","name","state","lcm_state","host","cpu","vcpu","memory"},
nil,
),
oneVmNicListDesc: prometheus.NewDesc("oneVmNicListDesc",
"Shows opennebula virtual machine interface(s) info",
[]string{"metricname","id","name","mac","network","ip","phydev","model","target","bridge","bridge_type","vlan_id"},
nil,
),
oneVmDiskListDesc: prometheus.NewDesc("oneVmDiskListDesc",
"Shows opennebula virtual machine disk(s) info",
[]string{"metricname","id","name","disk_id","image_id","image","target","size","space_used"},
nil,
),
oneVmGraphicDesc: prometheus.NewDesc("oneVmGraphicDesc",
"Shows opennebula virtual machine graphic info",
[]string{"metricname","id","name","graphic_type","hostname","graphic_port"},
nil,
),
oneVmOsDesc: prometheus.NewDesc("oneVmOsDesc",
"Shows opennebula virtual machine os info",
[]string{"metricname","id","name","os_arch","os_boot","os_machine"},
nil,
),
}
}
func (collector *oneCollector) Describe(ch chan<- *prometheus.Desc) {
ch <- collector.oneServerRaftStatusTermDesc
ch <- collector.oneServerRaftStatusVotedforDesc
ch <- collector.oneServerRaftStatusCommitDesc
ch <- collector.oneServerRaftStatusLogIndexDesc
ch <- collector.oneServerRaftStatusFedlogIndexDesc
ch <- collector.oneServerRaftStatusSyncedDesc
ch <- collector.oneVmListDesc
ch <- collector.oneVmNicListDesc
ch <- collector.oneVmDiskListDesc
ch <- collector.oneVmGraphicDesc
ch <- collector.oneVmOsDesc
}
func (collector *oneCollector) Collect(ch chan<- prometheus.Metric) {
conf := goca.NewConfig(user,pass,endpoint)
client := goca.NewDefaultClient(conf)
id := 0
controller := goca.NewController(client)
// Retrieve zone info
zone, err := controller.Zone(id).Info(false)
if err != nil {
log.Print("Zone id %d: %s", id, err)
}
var pclus PoweroneCluster
for _, server := range zone.ServerPool {
conf.Endpoint = server.Endpoint
client = goca.NewDefaultClient(conf)
controller.Client = client
// Fetch the raft status of the server behind the endpoint
status, err := controller.Zones().ServerRaftStatus()
if err != nil {
log.Print("Server raft status endpoint %s: %s", server.Endpoint, err)
var PoneNode PoweroneNode
PoneNode.Id = server.ID
PoneNode.State = "UNREACHABLE"
PoneNode.Name = server.Name
PoneNode.Url = server.Endpoint
PoneNode.LogIndex = -1
PoneNode.Commit = -1
pclus.PoweroneNodes = append(pclus.PoweroneNodes,PoneNode)
continue
}
// Display the Raft state of the server: Leader, Follower, Candidate, Error
state, err := status.State()
if err != nil {
log.Print("Server raft state %d: %s", status.StateRaw, err)
}
var PoneNode PoweroneNode
PoneNode.Id = server.ID
PoneNode.State = state.String()
PoneNode.Name = server.Name
PoneNode.Url = server.Endpoint
PoneNode.LogIndex = status.LogIndex
PoneNode.Commit = status.Commit
pclus.PoweroneNodes = append(pclus.PoweroneNodes,PoneNode)
ch <- prometheus.MustNewConstMetric(
collector.oneServerRaftStatusTermDesc,
prometheus.CounterValue,
float64(status.Term),
"Term",
server.Name,
state.String(),
strconv.Itoa(server.ID),
server.Endpoint)
ch <- prometheus.MustNewConstMetric(
collector.oneServerRaftStatusVotedforDesc,
prometheus.CounterValue,
float64(status.Votedfor),
"Vote",
server.Name,
state.String(),
strconv.Itoa(server.ID),
server.Endpoint)
ch <- prometheus.MustNewConstMetric(
collector.oneServerRaftStatusCommitDesc,
prometheus.CounterValue,
float64(status.Commit),
"Commit",
server.Name,
state.String(),
strconv.Itoa(server.ID),
server.Endpoint)
ch <- prometheus.MustNewConstMetric(
collector.oneServerRaftStatusLogIndexDesc,
prometheus.CounterValue,
float64(status.LogIndex),
"LogIndex",
server.Name,
state.String(),
strconv.Itoa(server.ID),
server.Endpoint)
ch <- prometheus.MustNewConstMetric(
collector.oneServerRaftStatusFedlogIndexDesc,
prometheus.CounterValue,
float64(status.FedlogIndex),
"FedlogIndex",
server.Name,
state.String(),
strconv.Itoa(server.ID),
server.Endpoint)
}
for _, node := range pclus.PoweroneNodes {
if node.State == "LEADER"{
synced := 0
MIN := node.LogIndex - 10
for _, ncompare := range pclus.PoweroneNodes {
if node.State == ncompare.State {
synced = 1
} else if ncompare.State == "FOLLOWER" {
if ncompare.LogIndex >= MIN {
synced = 1
} else {
synced = 0
}
} else {
synced = -1
}
ch <- prometheus.MustNewConstMetric(
collector.oneServerRaftStatusSyncedDesc,
prometheus.CounterValue,
float64(synced),
"Synced",
ncompare.Name,
ncompare.State,
strconv.Itoa(ncompare.Id),
node.Url,
strconv.Itoa(ncompare.Term),
strconv.Itoa(ncompare.LogIndex),
strconv.Itoa(ncompare.Commit))
}
}
}
// Get short informations of the VMs
vms, err := controller.VMs().Info()
if err != nil {
log.Fatal(err)
}
for _, onevm := range vms.VMs {
state,lcm_state, err := onevm.StateString()
if err != nil {
log.Fatal(err)
}
vm2,_ := controller.VM(onevm.ID).Info(false)
nics := vm2.Template.GetNICs()
disks := vm2.Template.GetDisks()
cpu,_ := onevm.Template.GetCPU()
vcpu,_ := onevm.Template.GetVCPU()
memory,_ := onevm.Template.GetMemory()
os_arch,err := vm2.Template.GetOS("ARCH")
os_boot,_ := vm2.Template.GetOS("BOOT")
os_machine,_ := vm2.Template.GetOS("MACHINE")
graphic_port,_ := onevm.Template.GetIOGraphic("PORT")
graphic_type,_ := onevm.Template.GetIOGraphic("TYPE")
disk_used := vm2.MonitoringInfos.GetVectors("DISK_SIZE")
records := onevm.HistoryRecords
var rhost vm.HistoryRecord
for _, rec := range records {
rhost = rec
}
var running int = 0
if lcm_state == "RUNNING" {
running = 1
}
name := onevm.Name
ch <- prometheus.MustNewConstMetric(
collector.oneVmListDesc,
prometheus.CounterValue,
float64(running),
"oneVMList",
strconv.Itoa(onevm.ID),
name,
state,
lcm_state,
rhost.Hostname,
fmt.Sprintf("%.0f",cpu),
strconv.Itoa(vcpu),
strconv.Itoa(memory))
for _, nic := range nics {
mac,_ := nic.Get("MAC")
ip,_ := nic.Get("IP")
net,_ := nic.Get("NETWORK")
phy,_ := nic.Get("PHYDEV")
model,_ := nic.Get("MODEL")
target,_ := nic.Get("TARGET")
bridge,_ := nic.Get("BRIDGE")
bridge_type,_ := nic.Get("BRIDGE_TYPE")
vlan,_ := nic.Get("VLAN_ID")
ch <- prometheus.MustNewConstMetric(
collector.oneVmNicListDesc,
prometheus.CounterValue,
float64(1),
"oneVmNicList",
strconv.Itoa(onevm.ID),
onevm.Name,
mac,
net,
ip,
phy,
model,
target,
bridge,
bridge_type,
vlan)
}
for _, disk := range disks {
disk_id,_ := disk.Get("DISK_ID")
image_id,_ := disk.Get("IMAGE_ID")
image,_ := disk.Get("IMAGE")
target,_ := disk.Get("TARGET")
size,_ := disk.Get("SIZE")
//fmt.Print(disk)
//fmt.Printf("DISK_ID: %s, IMAGE_ID: %s, IMAGE: %s, TARGET: %s, SIZE: %s\n", disk_id,image_id,image,target,size)
s,_ := strconv.ParseFloat(size,64)
used_space := "0"
for _, d := range disk_used {
if d.GetStrs("ID")[0] == disk_id {
used_space = d.GetStrs("SIZE")[0]
}
}
ch <- prometheus.MustNewConstMetric(
collector.oneVmDiskListDesc,
prometheus.CounterValue,
float64(s),
"oneVmDiskListDesc",
strconv.Itoa(onevm.ID),
onevm.Name,
disk_id,
image_id,
image,
target,
size,
used_space)
}
ch <- prometheus.MustNewConstMetric(
collector.oneVmGraphicDesc,
prometheus.CounterValue,
float64(1),
"oneVmGraphic",
strconv.Itoa(onevm.ID),
onevm.Name,
graphic_type,
rhost.Hostname,
graphic_port)
ch <- prometheus.MustNewConstMetric(
collector.oneVmOsDesc,
prometheus.CounterValue,
float64(1),
"oneVmOs",
strconv.Itoa(onevm.ID),
onevm.Name,
os_arch,
os_boot,
os_machine)
}
}
func main() {
var (
app = kingpin.New("opennebula_exporter", "Prometheus metrics exporter for opennebula")
listenAddress = app.Flag("web.listen-address", "Address to listen on for web interface and telemetry.").Default(":9701").String()
metricsPath = app.Flag("web.telemetry-path", "Path under which to expose metrics.").Default("/metrics").String()
)
kingpin.MustParse(app.Parse(os.Args[1:]))
onecollector := newoneCollector()
prometheus.MustRegister(onecollector)
http.Handle(*metricsPath, promhttp.Handler())
http.HandleFunc("/", func(w http.ResponseWriter, r *http.Request) {
w.Write([]byte(`
<html>
<head><title>Opennebula Exporter</title></head>
<body>
<h1>Opennebula Exporter</h1>
<p><a href='` + *metricsPath + `'>Metrics</a></p>
</body>
</html>`))
})
log.Info("Beginning to serve on port ",*listenAddress)
log.Fatal(http.ListenAndServe(*listenAddress, nil))
}