Files
zhenyi 3251fa08e3 refactor: extract EmailksServer as library, thin main.rs to bootstrap-only
- Add EmailksServer / EmailksServerBuilder to lib.rs
- Expose serve() / serve_with_shutdown() for embedding
- main.rs now only handles etcd config and delegates to library
2026-06-12 21:36:42 +08:00

69 lines
2.6 KiB
Rust

use emailks::{
config::AppConfig,
etcd::{EtcdConfig, ServiceRegistry},
EmailksServer,
};
use tracing::info;
#[tokio::main]
async fn main() -> Result<(), Box<dyn std::error::Error>> {
tracing_subscriber::fmt()
.with_env_filter(
tracing_subscriber::EnvFilter::try_from_default_env()
.unwrap_or_else(|_| "info".into()),
)
.init();
dotenvy::dotenv().ok();
let etcd_endpoints: Vec<String> = std::env::var("ETCD_ENDPOINTS")
.unwrap_or_else(|_| "http://localhost:2379".to_string())
.split(',')
.map(|s| s.trim().to_string())
.filter(|s| !s.is_empty())
.collect();
let etcd_prefix = std::env::var("ETCD_KEY_PREFIX")
.unwrap_or_else(|_| "/appks/".to_string());
let etcd = EtcdConfig::connect(etcd_endpoints, &etcd_prefix).await?;
let listen_addr_str = etcd.get("EMAILKS_LISTEN_ADDR", "127.0.0.1:50051").await;
let registry = ServiceRegistry::new(etcd.client(), &etcd_prefix);
registry.register("emailks", &listen_addr_str).await?;
let smtp_host = etcd.get("APP_SMTP_HOST", "").await;
if smtp_host.is_empty() {
return Err("APP_SMTP_HOST is required (set via etcd or env)".into());
}
let smtp_port: u16 = etcd.get_parsed("APP_SMTP_PORT", 587u16).await;
let smtp_from_email = etcd.get("APP_SMTP_FROM_EMAIL", "").await;
let smtp_from_name = etcd.get("APP_SMTP_FROM_NAME", "EmailKS").await;
let smtp_reply_to = etcd.get("APP_SMTP_REPLY_TO", "").await;
let smtp_tls = etcd.get("APP_SMTP_TLS", "starttls").await;
let smtp_timeout_secs: u64 = etcd.get_parsed("APP_SMTP_TIMEOUT_SECS", 30u64).await;
let smtp_allow_request_from: bool = etcd.get_parsed("APP_SMTP_ALLOW_REQUEST_FROM", false).await;
let smtp_username = etcd.get("APP_SMTP_USERNAME", "").await;
let smtp_password = etcd.get("APP_SMTP_PASSWORD", "").await;
let smtp_helo_name = etcd.get("APP_SMTP_HELO_NAME", "").await;
let queue_capacity: Option<usize> = {
let s = etcd.get("APP_SMTP_QUEUE_CAPACITY", "").await;
if s.is_empty() { None } else { s.parse().ok() }
};
let config = AppConfig::from_etcd(
smtp_host, smtp_port, smtp_username, smtp_password,
smtp_from_email, smtp_from_name, smtp_reply_to,
smtp_tls, smtp_timeout_secs, smtp_helo_name, smtp_allow_request_from,
queue_capacity,
&listen_addr_str,
)?;
info!(host = %config.smtp.host, port = config.smtp.port, "smtp config loaded (etcd priority)");
let server = EmailksServer::builder().config(config).build().await?;
server.serve().await?;
Ok(())
}