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use std::path::PathBuf;
use std::sync::Arc;
use futures_util::future::*;
use tokio::sync::watch;
use garage_util::background::*;
use garage_util::config::*;
use garage_util::error::Error;
use garage_api::api_server;
use garage_model::garage::Garage;
use garage_rpc::rpc_server::RpcServer;
use crate::admin_rpc::*;
async fn shutdown_signal(send_cancel: watch::Sender<bool>) -> Result<(), Error> {
// Wait for the CTRL+C signal
tokio::signal::ctrl_c()
.await
.expect("failed to install CTRL+C signal handler");
info!("Received CTRL+C, shutting down.");
send_cancel.broadcast(true)?;
Ok(())
}
async fn wait_from(mut chan: watch::Receiver<bool>) -> () {
while let Some(exit_now) = chan.recv().await {
if exit_now {
return;
}
}
}
pub async fn run_server(config_file: PathBuf) -> Result<(), Error> {
info!("Loading configuration...");
let config = read_config(config_file).expect("Unable to read config file");
info!("Opening database...");
let mut db_path = config.metadata_dir.clone();
db_path.push("db");
let db = sled::open(db_path).expect("Unable to open DB");
info!("Initialize RPC server...");
let mut rpc_server = RpcServer::new(config.rpc_bind_addr.clone(), config.rpc_tls.clone());
info!("Initializing background runner...");
let (send_cancel, watch_cancel) = watch::channel(false);
let background = BackgroundRunner::new(16, watch_cancel.clone());
let garage = Garage::new(config, db, background.clone(), &mut rpc_server).await;
info!("Crate admin RPC handler...");
AdminRpcHandler::new(garage.clone()).register_handler(&mut rpc_server);
info!("Initializing RPC and API servers...");
let run_rpc_server = Arc::new(rpc_server).run(wait_from(watch_cancel.clone()));
let api_server = api_server::run_api_server(garage.clone(), wait_from(watch_cancel.clone()));
futures::try_join!(
garage
.system
.clone()
.bootstrap(
&garage.config.bootstrap_peers[..],
garage.config.consul_host.clone(),
garage.config.consul_service_name.clone()
)
.map(|rv| {
info!("Bootstrap done");
Ok(rv)
}),
run_rpc_server.map(|rv| {
info!("RPC server exited");
rv
}),
api_server.map(|rv| {
info!("API server exited");
rv
}),
background.run().map(|rv| {
info!("Background runner exited");
Ok(rv)
}),
shutdown_signal(send_cancel),
)?;
info!("Cleaning up...");
Ok(())
}
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