incus-sentinel/http_notifier/main.go

package http_notifier

import (
	"fmt"
	"net/http"
	"slices"
	"time"
)

type HTTPNotifier struct{}

func NewNotifier() *HTTPNotifier {
	return &HTTPNotifier{}
}

func (n *HTTPNotifier) Notify(url string) error {
	client := &http.Client{
		Timeout: 10 * time.Second, // Set timeout duration
	}

	resp, err := client.Get(url)
	if err != nil {
		return fmt.Errorf("Failed to call URL %s: %s", url, err.Error())
	}
	defer resp.Body.Close()

	if !slices.Contains([]int{http.StatusOK, http.StatusCreated, http.StatusNoContent}, resp.StatusCode) {
		return fmt.Errorf("Unexpected status code %d from URL %s", resp.StatusCode, url)
	}

	return nil
}