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alert-forwarder

alert-forwarder is an alert receiver implementation of Webhook type for Prometheus AlertManager.

alert-forwarder forwards alerts from AlertManager to Splunk HEC (HTTP Event Collector).

It also implements Watchdog alerts checks to ensure that the entire alerting pipeline is functional.

Configuration

silenced: false
log.level: debug
watchdog.check_interval: 15
watchdog.alert_interval: 7200
watchdog.timeout: 300
event.host: "us-east1-01"
event.sourceType: "prometheus_alerts"
collector.host: "hec.example.com"
collector.protocol: "https"
collector.port: 8088
collector.token: "xxxxxxxx"
  • silenced - true or false, if you need to silence all alerts (default false)
  • log.level - debug|info|warn|error (default info)
  • watchdog.check_interval - in seconds, how often to check Watchdog pipeline
  • watchdog.alert_interval - in seconds, interval to send broken pipeline alerts
  • watchdog.timeout - in seconds, first alert if Watchdog was not received during this time
  • event.host - event host, typically Kubernetes cluster name to identify the source of alerts
  • event.sourceType - event sourcetype
  • collector.host - Splunk HEC host name or IP address
  • collector.protocol - http or https (default https)
  • collector.port - HEC port (default 8088)
  • collector.token - HEC authentication token

Build

Requirements for building

  • Go (version 1.14 or higher)
  • docker for image building

A Makefile is provided for building tasks.

cd $GOPATH/src/alert-forwarder
make build
make install
make image
make push