mirror of
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85 lines
3.5 KiB
Go
85 lines
3.5 KiB
Go
package watchdog
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import (
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"errors"
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"log"
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"os"
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"github.com/TwiN/gatus/v3/alerting"
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"github.com/TwiN/gatus/v3/core"
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)
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// HandleAlerting takes care of alerts to resolve and alerts to trigger based on result success or failure
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func HandleAlerting(endpoint *core.Endpoint, result *core.Result, alertingConfig *alerting.Config, debug bool) {
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if alertingConfig == nil {
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return
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}
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if result.Success {
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handleAlertsToResolve(endpoint, result, alertingConfig, debug)
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} else {
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handleAlertsToTrigger(endpoint, result, alertingConfig, debug)
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}
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}
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func handleAlertsToTrigger(endpoint *core.Endpoint, result *core.Result, alertingConfig *alerting.Config, debug bool) {
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endpoint.NumberOfSuccessesInARow = 0
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endpoint.NumberOfFailuresInARow++
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for _, endpointAlert := range endpoint.Alerts {
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// If the alert hasn't been triggered, move to the next one
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if !endpointAlert.IsEnabled() || endpointAlert.FailureThreshold > endpoint.NumberOfFailuresInARow {
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continue
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}
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if endpointAlert.Triggered {
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if debug {
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log.Printf("[watchdog][handleAlertsToTrigger] Alert for endpoint=%s with description='%s' has already been TRIGGERED, skipping", endpoint.Name, endpointAlert.GetDescription())
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}
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continue
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}
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alertProvider := alertingConfig.GetAlertingProviderByAlertType(endpointAlert.Type)
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if alertProvider != nil && alertProvider.IsValid() {
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log.Printf("[watchdog][handleAlertsToTrigger] Sending %s alert because alert for endpoint=%s with description='%s' has been TRIGGERED", endpointAlert.Type, endpoint.Name, endpointAlert.GetDescription())
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var err error
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if os.Getenv("MOCK_ALERT_PROVIDER") == "true" {
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if os.Getenv("MOCK_ALERT_PROVIDER_ERROR") == "true" {
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err = errors.New("error")
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}
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} else {
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err = alertProvider.Send(endpoint, endpointAlert, result, false)
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}
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if err != nil {
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log.Printf("[watchdog][handleAlertsToTrigger] Failed to send an alert for endpoint=%s: %s", endpoint.Name, err.Error())
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} else {
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endpointAlert.Triggered = true
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}
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} else {
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log.Printf("[watchdog][handleAlertsToResolve] Not sending alert of type=%s despite being TRIGGERED, because the provider wasn't configured properly", endpointAlert.Type)
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}
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}
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}
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func handleAlertsToResolve(endpoint *core.Endpoint, result *core.Result, alertingConfig *alerting.Config, debug bool) {
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endpoint.NumberOfSuccessesInARow++
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for _, endpointAlert := range endpoint.Alerts {
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if !endpointAlert.IsEnabled() || !endpointAlert.Triggered || endpointAlert.SuccessThreshold > endpoint.NumberOfSuccessesInARow {
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continue
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}
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// Even if the alert provider returns an error, we still set the alert's Triggered variable to false.
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// Further explanation can be found on Alert's Triggered field.
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endpointAlert.Triggered = false
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if !endpointAlert.IsSendingOnResolved() {
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continue
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}
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alertProvider := alertingConfig.GetAlertingProviderByAlertType(endpointAlert.Type)
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if alertProvider != nil && alertProvider.IsValid() {
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log.Printf("[watchdog][handleAlertsToResolve] Sending %s alert because alert for endpoint=%s with description='%s' has been RESOLVED", endpointAlert.Type, endpoint.Name, endpointAlert.GetDescription())
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err := alertProvider.Send(endpoint, endpointAlert, result, true)
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if err != nil {
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log.Printf("[watchdog][handleAlertsToResolve] Failed to send an alert for endpoint=%s: %s", endpoint.Name, err.Error())
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}
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} else {
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log.Printf("[watchdog][handleAlertsToResolve] Not sending alert of type=%s despite being RESOLVED, because the provider wasn't configured properly", endpointAlert.Type)
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}
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}
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endpoint.NumberOfFailuresInARow = 0
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}
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