93 lines
1.8 KiB
Go
Executable File
93 lines
1.8 KiB
Go
Executable File
package main
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import (
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"context"
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"fmt"
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"os"
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"time"
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"github.com/go-ping/ping"
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_ "github.com/go-ping/ping"
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"github.com/tursom/esxi-monitor/vmomi"
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)
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func main() {
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cfg, err := parseConfig("config.yaml")
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if err != nil {
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panic(err)
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}
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watchTargets := make(map[string]*watchVm)
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for _, watch := range cfg.Watch {
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watchTargets[watch.Name] = watch
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}
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client, err := vmomi.Connect("https://esxi/sdk", cfg.User, cfg.Password)
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if err != nil {
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panic(err)
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}
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vms, err := vmomi.ListVms(client.Client)
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if err != nil {
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panic(err)
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}
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// ip -> vm instance
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watches := make(map[string]*vmomi.VirtualMachine)
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for _, vm := range vms {
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target, contains := watchTargets[vm.Name()]
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if !contains {
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continue
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}
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fmt.Printf("watching virtual machine: addr=%s, name=%s\n", target.Addr, vm.Name())
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watches[target.Addr] = vm
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}
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doWatch(watches)
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}
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// watches map ip -> vm instance
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func doWatch(watches map[string]*vmomi.VirtualMachine) {
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t := time.NewTicker(time.Minute)
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for {
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<-t.C
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for ip, vm := range watches {
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pinger, err := ping.NewPinger(ip)
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if err != nil {
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_, _ = fmt.Fprintf(os.Stderr, "ping to target failed: %s\n", err)
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continue
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}
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pinger.Count = 4
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err = pinger.Run()
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if err != nil {
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_, _ = fmt.Fprintf(os.Stderr, "ping to target failed: %s\n", err)
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continue
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}
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statistics := pinger.Statistics()
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if statistics.PacketsRecv == 0 {
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fmt.Printf("restarting vm %s(%s)", ip, vm.Name())
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task, err := vm.Reset()
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if err != nil {
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_, _ = fmt.Fprintf(os.Stderr, "restart vm failed: %s\n", err)
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continue
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}
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ctx, _ := context.WithTimeout(context.Background(), time.Minute)
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err = task.Wait(ctx)
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if err != nil {
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_, _ = fmt.Fprintf(os.Stderr, "restart vm failed: %s\n", err)
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continue
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}
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}
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}
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}
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}
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