-
Notifications
You must be signed in to change notification settings - Fork 0
/
node_checker.go
42 lines (33 loc) · 936 Bytes
/
node_checker.go
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
package watcher
import (
"fmt"
"github.com/robfig/cron/v3"
"github.com/rs/zerolog/log"
metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
"github.com/iLert/ilert-kube-agent/pkg/config"
)
var nodeCheckerCron *cron.Cron
func startNodeChecker(cfg *config.Config) {
nodeCheckerCron = cron.New()
nodeCheckerCron.AddFunc(fmt.Sprintf("@every %s", cfg.Settings.CheckInterval), func() {
checkNodes(cfg)
})
log.Info().Msg("Starting nodes checker")
nodeCheckerCron.Start()
}
func stopNodeMetricsChecker() {
if nodeCheckerCron != nil {
log.Info().Msg("Stopping nodes checker")
nodeCheckerCron.Stop()
}
}
func checkNodes(cfg *config.Config) {
nodes, err := cfg.KubeClient.CoreV1().Nodes().List(metav1.ListOptions{})
if err != nil {
log.Fatal().Err(err).Msg("Failed to get nodes from apiserver")
}
log.Debug().Msg("Running nodes resource check")
for _, node := range nodes.Items {
analyzeNodeResources(&node, cfg)
}
}