notify me to running servers on Scaleway

scw-server-notifier.go

package main

import (
	"fmt"
	"os"

	notify "github.com/TheCreeper/go-notify"
	instance "github.com/scaleway/scaleway-sdk-go/api/instance/v1"
	"github.com/scaleway/scaleway-sdk-go/scw"
	yaml "gopkg.in/yaml.v3"
)

// Format of the file stored as ~/.config/scw/config.yaml
type ScwConfig struct {
	AccessKey             string `yaml:"access_key,omitempty"`
	SecretKey             string `yaml:"secret_key,omitempty"`
	DefaultOrganizationID string `yaml:"default_organization_id,omitempty"`
	DefaultProjectID      string `yaml:"default_project_id"`
	DefaultRegion         string `yaml:"default_region,omitempty"`
	DefaultZone           string `yaml:"default_zone,omitempty"`
	ApiUrl                string `yaml:"api_url,omitempty"`
	Insecure              bool   `yaml:"insecure,omitempty"`
	ActiveProfile         string `yaml:"active_profile,omitempty"`
	SendTelemetry         bool   `yaml:"send_telemetry,omitempty"`
}

func ReadConfig() (*ScwConfig, error) {
	configPath := scw.GetConfigPath()
	f, err := os.Open(configPath)
	if err != nil {
		return nil, err
	}
	defer f.Close()

	cfg := new(ScwConfig)
	dec := yaml.NewDecoder(f)
	err = dec.Decode(cfg)
	return cfg, err
}

func main() {
	cfg, err := ReadConfig()
	if err != nil {
		panic(err)
	}

	client, err := scw.NewClient(
		// Get your credentials at https://console.scaleway.com/project/credentials
		scw.WithDefaultOrganizationID(cfg.DefaultOrganizationID),
		scw.WithDefaultProjectID(cfg.DefaultProjectID),
		scw.WithAuth(cfg.AccessKey, cfg.SecretKey),
	)
	if err != nil {
		panic(err)
	}
	instanceApi := instance.NewAPI(client)

	zone := scw.ZoneNlAms1
	if z, err := scw.ParseZone(cfg.DefaultZone); err == nil {
		zone = z
	} else {
		fmt.Printf("WARN: Zone '%s' is not recognized - did you mean '%s-1'?",
			cfg.DefaultZone, cfg.DefaultRegion)
	}
	response, err := instanceApi.ListServers(&instance.ListServersRequest{
		Zone: zone,
	})
	if err != nil {
		panic(err)
	}

	if len(response.Servers) == 0 {
		fmt.Printf("Exiting. No servers in zone: %s\n", zone)
		return
	}
	n := notify.NewNotification(
		"Servers on Scaleway",
		fmt.Sprintf("Number of servers that are running: %d",
			len(response.Servers)),
	)
	n.AppName = "hygienic.fun/homeoffice/server-notifier"
	n.AppIcon = "network-workgroup"
	n.Hints = make(map[string]interface{}, 1)
	n.Hints[notify.HintUrgency] = notify.UrgencyNormal
	n.Show()
}