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Metrics: Fix `nginx_ingress_controller_config_last_reload_successful`. (#13860) 

Signed-off-by: Roman Orudzhov <roman.orudzhov@flant.com>
Co-authored-by: Roman Orudzhov <roman.orudzhov@flant.com>
This commit is contained in:
k8s-infra-cherrypick-robot 2025-08-28 10:41:09 -07:00 committed by GitHub
parent a8fae7cf75
commit 4dd49959fa
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GPG Key ID: B5690EEEBB952194
2 changed files with 16 additions and 8 deletions
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22
internal/ingress/controller/controller.go
View File

@ -192,7 +192,18 @@ func (n *NGINXController) syncIngress(interface{}) error {
n.metricCollector.SetSSLExpireTime(servers)
n.metricCollector.SetSSLInfo(servers)
hash, err := hashstructure.Hash(pcfg, hashstructure.FormatV1, &hashstructure.HashOptions{
TagName: "json",
})
if err != nil {
klog.Errorf("unexpected error hashing configuration: %v", err)
}
if n.runningConfig.Equal(pcfg) {
if !n.lastConfigSuccess {
n.metricCollector.ConfigSuccess(hash, true)
n.lastConfigSuccess = true
}
klog.V(3).Infof("No configuration change detected, skipping backend reload")
return nil
}
@ -202,19 +213,13 @@ func (n *NGINXController) syncIngress(interface{}) error {
if !utilingress.IsDynamicConfigurationEnough(pcfg, n.runningConfig) {
klog.InfoS("Configuration changes detected, backend reload required")
hash, err := hashstructure.Hash(pcfg, hashstructure.FormatV1, &hashstructure.HashOptions{
TagName: "json",
})
if err != nil {
klog.Errorf("unexpected error hashing configuration: %v", err)
}
pcfg.ConfigurationChecksum = fmt.Sprintf("%v", hash)
err = n.OnUpdate(*pcfg)
if err != nil {
n.metricCollector.IncReloadErrorCount()
n.metricCollector.ConfigSuccess(hash, false)
n.lastConfigSuccess = false
klog.Errorf("Unexpected failure reloading the backend:\n%v", err)
n.recorder.Eventf(k8s.IngressPodDetails, apiv1.EventTypeWarning, "RELOAD", fmt.Sprintf("Error reloading NGINX: %v", err))
return err
@ -223,6 +228,7 @@ func (n *NGINXController) syncIngress(interface{}) error {
klog.InfoS("Backend successfully reloaded")
n.metricCollector.ConfigSuccess(hash, true)
n.metricCollector.IncReloadCount()
n.lastConfigSuccess = true
n.recorder.Eventf(k8s.IngressPodDetails, apiv1.EventTypeNormal, "RELOAD", "NGINX reload triggered due to a change in configuration")
}
@ -243,7 +249,7 @@ func (n *NGINXController) syncIngress(interface{}) error {
}
retriesRemaining := retry.Steps
err := wait.ExponentialBackoff(retry, func() (bool, error) {
err = wait.ExponentialBackoff(retry, func() (bool, error) {
err := n.configureDynamically(pcfg)
if err == nil {
klog.V(2).Infof("Dynamic reconfiguration succeeded.")

2
internal/ingress/controller/nginx.go
View File

@ -264,6 +264,8 @@ type NGINXController struct {
validationWebhookServer *http.Server
command NginxExecTester
lastConfigSuccess bool
}
// Start starts a new NGINX master process running in the foreground.