Add cloudwatch config variables

config.go

@@ -36,6 +36,9 @@ type Config struct {
 	S3AttachmentsBucket string `help:"S3 bucket to write attachments to"`
 	S3Minio             bool   `help:"S3 is actually Minio or other compatible service"`
 
+	CloudwatchNamespace string `help:"the namespace to use for cloudwatch metrics"`
+	DeploymentID        string `help:"the deployment identifier to use for metrics"`
+
 	FacebookApplicationSecret    string `help:"the Facebook app secret"`
 	FacebookWebhookSecret        string `help:"the secret for Facebook webhook URL verification"`
 	WhatsappAdminSystemUserToken string `help:"the token of the admin system user for WhatsApp"`
@@ -84,6 +87,9 @@ func NewDefaultConfig() *Config {
 		FacebookWebhookSecret:        "missing_facebook_webhook_secret",
 		WhatsappAdminSystemUserToken: "missing_whatsapp_admin_system_user_token",
 
+		CloudwatchNamespace: "Temba",
+		DeploymentID:        "dev",
+
 		DisallowedNetworks: `127.0.0.1,::1,10.0.0.0/8,172.16.0.0/12,192.168.0.0/16,169.254.0.0/16,fe80::/10`,
 		MaxWorkers:         32,
 		LogLevel:           slog.LevelWarn,