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authorAlex Auvolat <alex@adnab.me>2020-04-07 16:26:22 +0200
committerAlex Auvolat <alex@adnab.me>2020-04-07 16:26:22 +0200
commit061e676136613dce3ffd40c515aa58f99bda30d8 (patch)
tree53d441c60605aae7aaefdafb2734d5a446302ce3 /src/server.rs
parent46d5b896e841a209ea92cac23d5f59dfc1ff885d (diff)
downloadgarage-061e676136613dce3ffd40c515aa58f99bda30d8.tar.gz
garage-061e676136613dce3ffd40c515aa58f99bda30d8.zip
Refactor; ability to update network config
Diffstat (limited to 'src/server.rs')
-rw-r--r--src/server.rs98
1 files changed, 98 insertions, 0 deletions
diff --git a/src/server.rs b/src/server.rs
new file mode 100644
index 00000000..04f98c65
--- /dev/null
+++ b/src/server.rs
@@ -0,0 +1,98 @@
+use std::io::{Read, Write};
+use std::sync::Arc;
+use std::net::SocketAddr;
+use std::path::PathBuf;
+use futures::channel::oneshot;
+use serde::Deserialize;
+use rand::Rng;
+
+use crate::data::UUID;
+use crate::error::Error;
+use crate::membership::System;
+use crate::api_server;
+use crate::rpc_server;
+
+#[derive(Deserialize, Debug)]
+pub struct Config {
+ pub datacenter: String,
+
+ pub metadata_dir: PathBuf,
+ pub data_dir: PathBuf,
+
+ pub api_port: u16,
+ pub rpc_port: u16,
+
+ pub bootstrap_peers: Vec<SocketAddr>,
+}
+
+fn read_config(config_file: PathBuf) -> Result<Config, Error> {
+ let mut file = std::fs::OpenOptions::new()
+ .read(true)
+ .open(config_file.as_path())?;
+
+ let mut config = String::new();
+ file.read_to_string(&mut config)?;
+
+ Ok(toml::from_str(&config)?)
+}
+
+fn gen_node_id(metadata_dir: &PathBuf) -> Result<UUID, Error> {
+ let mut id_file = metadata_dir.clone();
+ id_file.push("node_id");
+ if id_file.as_path().exists() {
+ let mut f = std::fs::File::open(id_file.as_path())?;
+ let mut d = vec![];
+ f.read_to_end(&mut d)?;
+ if d.len() != 32 {
+ return Err(Error::Message(format!("Corrupt node_id file")))
+ }
+
+ let mut id = [0u8; 32];
+ id.copy_from_slice(&d[..]);
+ Ok(id)
+ } else {
+ let id = rand::thread_rng().gen::<UUID>();
+
+ let mut f = std::fs::File::create(id_file.as_path())?;
+ f.write_all(&id[..])?;
+ Ok(id)
+ }
+}
+
+async fn shutdown_signal(chans: Vec<oneshot::Sender<()>>) {
+ // Wait for the CTRL+C signal
+ tokio::signal::ctrl_c()
+ .await
+ .expect("failed to install CTRL+C signal handler");
+ println!("Received CTRL+C, shutting down.");
+ for ch in chans {
+ ch.send(()).unwrap();
+ }
+}
+
+async fn wait_from(chan: oneshot::Receiver<()>) -> () {
+ chan.await.unwrap()
+}
+
+pub async fn run_server(config_file: PathBuf) -> Result<(), Error> {
+ let config = read_config(config_file)
+ .expect("Unable to read config file");
+
+ let id = gen_node_id(&config.metadata_dir)
+ .expect("Unable to read or generate node ID");
+ println!("Node ID: {}", hex::encode(id));
+
+ let sys = Arc::new(System::new(config, id));
+
+ let (tx1, rx1) = oneshot::channel();
+ let (tx2, rx2) = oneshot::channel();
+
+ let rpc_server = rpc_server::run_rpc_server(sys.clone(), wait_from(rx1));
+ let api_server = api_server::run_api_server(sys.clone(), wait_from(rx2));
+
+ tokio::spawn(shutdown_signal(vec![tx1, tx2]));
+ tokio::spawn(sys.bootstrap());
+
+ futures::try_join!(rpc_server, api_server)?;
+ Ok(())
+}