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|
mod error;
mod data;
mod proto;
mod membership;
mod table;
mod object_table;
mod version_table;
mod block;
mod server;
mod rpc_server;
mod rpc_client;
mod api_server;
use std::collections::HashSet;
use std::net::SocketAddr;
use std::path::PathBuf;
use structopt::StructOpt;
use error::Error;
use rpc_client::RpcClient;
use data::*;
use proto::*;
#[derive(StructOpt, Debug)]
#[structopt(name = "garage")]
pub struct Opt {
/// RPC connect to this host to execute client operations
#[structopt(short = "h", long = "rpc-host", default_value = "127.0.0.1:3901")]
rpc_host: SocketAddr,
#[structopt(subcommand)]
cmd: Command,
}
#[derive(StructOpt, Debug)]
pub enum Command {
/// Run Garage server
#[structopt(name = "server")]
Server(ServerOpt),
/// Get network status
#[structopt(name = "status")]
Status,
/// Configure Garage node
#[structopt(name = "configure")]
Configure(ConfigureOpt),
}
#[derive(StructOpt, Debug)]
pub struct ServerOpt {
/// Configuration file
#[structopt(short = "c", long = "config", default_value = "./config.toml")]
config_file: PathBuf,
}
#[derive(StructOpt, Debug)]
pub struct ConfigureOpt {
/// Node to configure (prefix of hexadecimal node id)
node_id: String,
/// Location (datacenter) of the node
datacenter: String,
/// Number of tokens
n_tokens: u32,
}
#[tokio::main]
async fn main() {
let opt = Opt::from_args();
let rpc_cli = RpcClient::new();
let resp = match opt.cmd {
Command::Server(server_opt) => {
server::run_server(server_opt.config_file).await
}
Command::Status => {
cmd_status(rpc_cli, opt.rpc_host).await
}
Command::Configure(configure_opt) => {
cmd_configure(rpc_cli, opt.rpc_host, configure_opt).await
}
};
if let Err(e) = resp {
eprintln!("Error: {}", e);
}
}
async fn cmd_status(rpc_cli: RpcClient, rpc_host: SocketAddr) -> Result<(), Error> {
let status = match rpc_cli.call(&rpc_host,
&Message::PullStatus,
DEFAULT_TIMEOUT).await? {
Message::AdvertiseNodesUp(nodes) => nodes,
resp => return Err(Error::Message(format!("Invalid RPC response: {:?}", resp)))
};
let config = match rpc_cli.call(&rpc_host,
&Message::PullConfig,
DEFAULT_TIMEOUT).await? {
Message::AdvertiseConfig(cfg) => cfg,
resp => return Err(Error::Message(format!("Invalid RPC response: {:?}", resp)))
};
println!("Healthy nodes:");
for adv in status.iter() {
if let Some(cfg) = config.members.get(&adv.id) {
println!("{}\t{}\t{}\t{}", hex::encode(&adv.id), cfg.datacenter, cfg.n_tokens, adv.addr);
}
}
let status_keys = status.iter().map(|x| x.id.clone()).collect::<HashSet<_>>();
if config.members.iter().any(|(id, _)| !status_keys.contains(id)) {
println!("\nFailed nodes:");
for (id, cfg) in config.members.iter() {
if !status.iter().any(|x| x.id == *id) {
println!("{}\t{}\t{}", hex::encode(&id), cfg.datacenter, cfg.n_tokens);
}
}
}
if status.iter().any(|adv| !config.members.contains_key(&adv.id)) {
println!("\nUnconfigured nodes:");
for adv in status.iter() {
if !config.members.contains_key(&adv.id) {
println!("{}\t{}", hex::encode(&adv.id), adv.addr);
}
}
}
Ok(())
}
async fn cmd_configure(rpc_cli: RpcClient, rpc_host: SocketAddr, args: ConfigureOpt) -> Result<(), Error> {
let status = match rpc_cli.call(&rpc_host,
&Message::PullStatus,
DEFAULT_TIMEOUT).await? {
Message::AdvertiseNodesUp(nodes) => nodes,
resp => return Err(Error::Message(format!("Invalid RPC response: {:?}", resp)))
};
let mut candidates = vec![];
for adv in status.iter() {
if hex::encode(&adv.id).starts_with(&args.node_id) {
candidates.push(adv.id.clone());
}
}
if candidates.len() != 1 {
return Err(Error::Message(format!("{} matching nodes", candidates.len())));
}
let mut config = match rpc_cli.call(&rpc_host,
&Message::PullConfig,
DEFAULT_TIMEOUT).await? {
Message::AdvertiseConfig(cfg) => cfg,
resp => return Err(Error::Message(format!("Invalid RPC response: {:?}", resp)))
};
config.members.insert(candidates[0].clone(),
NetworkConfigEntry{
datacenter: args.datacenter,
n_tokens: args.n_tokens,
});
config.version += 1;
rpc_cli.call(&rpc_host,
&Message::AdvertiseConfig(config),
DEFAULT_TIMEOUT).await?;
Ok(())
}
|
