Alerting action trigger script

[wooyoungAhn]

Hello everyone
I am studying to trigger a script when prometheus Alerting actions like Active IQ Unified Manager.
If anyone has already implemented this, can you advise me?

https://docs.netapp.com/us-en/active-iq-unified-manager-99/online-help/concept-how-scripts-work-with-alerts.html

[rahulguptajss]

@wooyoungAhn You can use prometheus alert manager through a webhook. Below are the sample steps.

Setting Up a Webhook Receiver with Golang and Prometheus Alertmanager

Prerequisites

• Prometheus and Alertmanager installed and configured.
• Golang installed

Step 1: Create the Go Webhook Receiver

Create a new Go file (e.g., main.go) and add the following code. You can invoke a script in go code as needed.

package main

import (
	"fmt"
	"io"
	"log"
	"net/http"
)

func alertHandler(w http.ResponseWriter, r *http.Request) {
	body, err := io.ReadAll(r.Body)
	if err != nil {
		http.Error(w, "Error reading request body",
			http.StatusInternalServerError)
		return
	}

	// Print the received data
	fmt.Println(string(body))
}

func main() {
	http.HandleFunc("/", alertHandler)
	log.Fatal(http.ListenAndServe(":5001", nil))
}

This code creates a simple web server that listens for POST requests at the / endpoint and prints the received alert data.

Step 2: Run the Go Webhook Receiver

To run the Go webhook receiver, navigate to the directory containing the main.go file and execute the following command:

go run main.go

The server will start and listen on port 5001.

Step 3: Configure Alertmanager

In your Alertmanager configuration file (usually named alertmanager.yml), add a new receiver that points to the Go webhook receiver:

route:
  receiver: 'webhook'
receivers:
- name: 'webhook'
  webhook_configs:
  - url: 'http://localhost:5001/'

Step 4: Test the Setup

Trigger an alert in Prometheus to test the setup. If everything is configured correctly, the alert data should be printed by the Go webhook receiver.

[wooyoungAhn]

@rahulguptajss Thank you for your help.
oh That good idea we can use webhook!!

Thank you so much I will try to this.