Split code for modular compilation

1 files changed, 531 insertions, 0 deletions

diff --git a/src/garage/main.rs b/src/garage/main.rs
new file mode 100644
index 00000000..1185871f
--- /dev/null
+++ b/src/garage/main.rs
@@ -0,0 +1,531 @@
+#![recursion_limit = "1024"]
+
+#[macro_use]
+extern crate log;
+
+mod admin_rpc;
+mod repair;
+mod server;
+
+use std::collections::HashSet;
+use std::net::SocketAddr;
+use std::path::PathBuf;
+use std::sync::Arc;
+use std::time::Duration;
+
+use serde::{Deserialize, Serialize};
+use structopt::StructOpt;
+
+use garage_util::config::TlsConfig;
+use garage_util::data::*;
+use garage_util::error::Error;
+
+use garage_rpc::membership::*;
+use garage_rpc::rpc_client::*;
+
+use admin_rpc::*;
+
+#[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(long = "ca-cert")]
+	ca_cert: Option<String>,
+	#[structopt(long = "client-cert")]
+	client_cert: Option<String>,
+	#[structopt(long = "client-key")]
+	client_key: Option<String>,
+
+	#[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,
+
+	/// Garage node operations
+	#[structopt(name = "node")]
+	Node(NodeOperation),
+
+	/// Bucket operations
+	#[structopt(name = "bucket")]
+	Bucket(BucketOperation),
+
+	/// Key operations
+	#[structopt(name = "key")]
+	Key(KeyOperation),
+
+	/// Start repair of node data
+	#[structopt(name = "repair")]
+	Repair(RepairOpt),
+}
+
+#[derive(StructOpt, Debug)]
+pub struct ServerOpt {
+	/// Configuration file
+	#[structopt(short = "c", long = "config", default_value = "./config.toml")]
+	config_file: PathBuf,
+}
+
+#[derive(StructOpt, Debug)]
+pub enum NodeOperation {
+	/// Configure Garage node
+	#[structopt(name = "configure")]
+	Configure(ConfigureNodeOpt),
+
+	/// Remove Garage node from cluster
+	#[structopt(name = "remove")]
+	Remove(RemoveNodeOpt),
+}
+
+#[derive(StructOpt, Debug)]
+pub struct ConfigureNodeOpt {
+	/// Node to configure (prefix of hexadecimal node id)
+	node_id: String,
+
+	/// Location (datacenter) of the node
+	#[structopt(short = "d", long = "datacenter")]
+	datacenter: Option<String>,
+
+	/// Number of tokens
+	#[structopt(short = "n", long = "n-tokens")]
+	n_tokens: Option<u32>,
+
+	/// Optionnal node tag
+	#[structopt(short = "t", long = "tag")]
+	tag: Option<String>,
+}
+
+#[derive(StructOpt, Debug)]
+pub struct RemoveNodeOpt {
+	/// Node to configure (prefix of hexadecimal node id)
+	node_id: String,
+
+	/// If this flag is not given, the node won't be removed
+	#[structopt(long = "yes")]
+	yes: bool,
+}
+
+#[derive(Serialize, Deserialize, StructOpt, Debug)]
+pub enum BucketOperation {
+	/// List buckets
+	#[structopt(name = "list")]
+	List,
+
+	/// Get bucket info
+	#[structopt(name = "info")]
+	Info(BucketOpt),
+
+	/// Create bucket
+	#[structopt(name = "create")]
+	Create(BucketOpt),
+
+	/// Delete bucket
+	#[structopt(name = "delete")]
+	Delete(DeleteBucketOpt),
+
+	/// Allow key to read or write to bucket
+	#[structopt(name = "allow")]
+	Allow(PermBucketOpt),
+
+	/// Allow key to read or write to bucket
+	#[structopt(name = "deny")]
+	Deny(PermBucketOpt),
+}
+
+#[derive(Serialize, Deserialize, StructOpt, Debug)]
+pub struct BucketOpt {
+	/// Bucket name
+	pub name: String,
+}
+
+#[derive(Serialize, Deserialize, StructOpt, Debug)]
+pub struct DeleteBucketOpt {
+	/// Bucket name
+	pub name: String,
+
+	/// If this flag is not given, the bucket won't be deleted
+	#[structopt(long = "yes")]
+	pub yes: bool,
+}
+
+#[derive(Serialize, Deserialize, StructOpt, Debug)]
+pub struct PermBucketOpt {
+	/// Access key ID
+	#[structopt(long = "key")]
+	pub key_id: String,
+
+	/// Allow/deny read operations
+	#[structopt(long = "read")]
+	pub read: bool,
+
+	/// Allow/deny write operations
+	#[structopt(long = "write")]
+	pub write: bool,
+
+	/// Bucket name
+	pub bucket: String,
+}
+
+#[derive(Serialize, Deserialize, StructOpt, Debug)]
+pub enum KeyOperation {
+	/// List keys
+	#[structopt(name = "list")]
+	List,
+
+	/// Get key info
+	#[structopt(name = "info")]
+	Info(KeyOpt),
+
+	/// Create new key
+	#[structopt(name = "new")]
+	New(KeyNewOpt),
+
+	/// Rename key
+	#[structopt(name = "rename")]
+	Rename(KeyRenameOpt),
+
+	/// Delete key
+	#[structopt(name = "delete")]
+	Delete(KeyDeleteOpt),
+}
+
+#[derive(Serialize, Deserialize, StructOpt, Debug)]
+pub struct KeyOpt {
+	/// ID of the key
+	key_id: String,
+}
+
+#[derive(Serialize, Deserialize, StructOpt, Debug)]
+pub struct KeyNewOpt {
+	/// Name of the key
+	#[structopt(long = "name", default_value = "Unnamed key")]
+	name: String,
+}
+
+#[derive(Serialize, Deserialize, StructOpt, Debug)]
+pub struct KeyRenameOpt {
+	/// ID of the key
+	key_id: String,
+
+	/// New name of the key
+	new_name: String,
+}
+
+#[derive(Serialize, Deserialize, StructOpt, Debug)]
+pub struct KeyDeleteOpt {
+	/// ID of the key
+	key_id: String,
+
+	/// Confirm deletion
+	#[structopt(long = "yes")]
+	yes: bool,
+}
+
+#[derive(Serialize, Deserialize, StructOpt, Debug, Clone)]
+pub struct RepairOpt {
+	/// Launch repair operation on all nodes
+	#[structopt(short = "a", long = "all-nodes")]
+	pub all_nodes: bool,
+
+	/// Confirm the launch of the repair operation
+	#[structopt(long = "yes")]
+	pub yes: bool,
+
+	#[structopt(subcommand)]
+	pub what: Option<RepairWhat>,
+}
+
+#[derive(Serialize, Deserialize, StructOpt, Debug, Eq, PartialEq, Clone)]
+pub enum RepairWhat {
+	/// Only do a full sync of metadata tables
+	#[structopt(name = "tables")]
+	Tables,
+	/// Only repair (resync/rebalance) the set of stored blocks
+	#[structopt(name = "blocks")]
+	Blocks,
+	/// Only redo the propagation of object deletions to the version table (slow)
+	#[structopt(name = "versions")]
+	Versions,
+	/// Only redo the propagation of version deletions to the block ref table (extremely slow)
+	#[structopt(name = "block_refs")]
+	BlockRefs,
+}
+
+#[tokio::main]
+async fn main() {
+	pretty_env_logger::init();
+
+	let opt = Opt::from_args();
+
+	let tls_config = match (opt.ca_cert, opt.client_cert, opt.client_key) {
+		(Some(ca_cert), Some(client_cert), Some(client_key)) => Some(TlsConfig {
+			ca_cert,
+			node_cert: client_cert,
+			node_key: client_key,
+		}),
+		(None, None, None) => None,
+		_ => {
+			warn!("Missing one of: --ca-cert, --node-cert, --node-key. Not using TLS.");
+			None
+		}
+	};
+
+	let rpc_http_cli =
+		Arc::new(RpcHttpClient::new(8, &tls_config).expect("Could not create RPC client"));
+	let membership_rpc_cli =
+		RpcAddrClient::new(rpc_http_cli.clone(), MEMBERSHIP_RPC_PATH.to_string());
+	let admin_rpc_cli = RpcAddrClient::new(rpc_http_cli.clone(), ADMIN_RPC_PATH.to_string());
+
+	let resp = match opt.cmd {
+		Command::Server(server_opt) => {
+			// Abort on panic (same behavior as in Go)
+			std::panic::set_hook(Box::new(|panic_info| {
+				error!("{}", panic_info.to_string());
+				std::process::abort();
+			}));
+
+			server::run_server(server_opt.config_file).await
+		}
+		Command::Status => cmd_status(membership_rpc_cli, opt.rpc_host).await,
+		Command::Node(NodeOperation::Configure(configure_opt)) => {
+			cmd_configure(membership_rpc_cli, opt.rpc_host, configure_opt).await
+		}
+		Command::Node(NodeOperation::Remove(remove_opt)) => {
+			cmd_remove(membership_rpc_cli, opt.rpc_host, remove_opt).await
+		}
+		Command::Bucket(bo) => {
+			cmd_admin(admin_rpc_cli, opt.rpc_host, AdminRPC::BucketOperation(bo)).await
+		}
+		Command::Key(bo) => {
+			cmd_admin(admin_rpc_cli, opt.rpc_host, AdminRPC::KeyOperation(bo)).await
+		}
+		Command::Repair(ro) => {
+			cmd_admin(admin_rpc_cli, opt.rpc_host, AdminRPC::LaunchRepair(ro)).await
+		}
+	};
+
+	if let Err(e) = resp {
+		error!("Error: {}", e);
+	}
+}
+
+async fn cmd_status(rpc_cli: RpcAddrClient<Message>, rpc_host: SocketAddr) -> Result<(), Error> {
+	let status = match rpc_cli
+		.call(&rpc_host, &Message::PullStatus, ADMIN_RPC_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, ADMIN_RPC_TIMEOUT)
+		.await??
+	{
+		Message::AdvertiseConfig(cfg) => cfg,
+		resp => return Err(Error::Message(format!("Invalid RPC response: {:?}", resp))),
+	};
+
+	println!("Healthy nodes:");
+	for adv in status.iter().filter(|x| x.is_up) {
+		if let Some(cfg) = config.members.get(&adv.id) {
+			println!(
+				"{:?}\t{}\t{}\t[{}]\t{}\t{}",
+				adv.id, adv.state_info.hostname, adv.addr, cfg.tag, cfg.datacenter, cfg.n_tokens
+			);
+		} else {
+			println!(
+				"{:?}\t{}\t{}\tUNCONFIGURED/REMOVED",
+				adv.id, adv.state_info.hostname, adv.addr
+			);
+		}
+	}
+
+	let status_keys = status.iter().map(|x| x.id).collect::<HashSet<_>>();
+	let failure_case_1 = status.iter().any(|x| !x.is_up);
+	let failure_case_2 = config
+		.members
+		.iter()
+		.any(|(id, _)| !status_keys.contains(id));
+	if failure_case_1 || failure_case_2 {
+		println!("\nFailed nodes:");
+		for adv in status.iter().filter(|x| !x.is_up) {
+			if let Some(cfg) = config.members.get(&adv.id) {
+				println!(
+					"{:?}\t{}\t{}\t[{}]\t{}\t{}\tlast seen: {}s ago",
+					adv.id,
+					adv.state_info.hostname,
+					adv.addr,
+					cfg.tag,
+					cfg.datacenter,
+					cfg.n_tokens,
+					(now_msec() - adv.last_seen) / 1000,
+				);
+			}
+		}
+		for (id, cfg) in config.members.iter() {
+			if !status.iter().any(|x| x.id == *id) {
+				println!(
+					"{:?}\t{}\t{}\t{}\tnever seen",
+					id, cfg.tag, cfg.datacenter, cfg.n_tokens
+				);
+			}
+		}
+	}
+
+	Ok(())
+}
+
+async fn cmd_configure(
+	rpc_cli: RpcAddrClient<Message>,
+	rpc_host: SocketAddr,
+	args: ConfigureNodeOpt,
+) -> Result<(), Error> {
+	let status = match rpc_cli
+		.call(&rpc_host, &Message::PullStatus, ADMIN_RPC_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);
+		}
+	}
+	if candidates.len() != 1 {
+		return Err(Error::Message(format!(
+			"{} matching nodes",
+			candidates.len()
+		)));
+	}
+
+	let mut config = match rpc_cli
+		.call(&rpc_host, &Message::PullConfig, ADMIN_RPC_TIMEOUT)
+		.await??
+	{
+		Message::AdvertiseConfig(cfg) => cfg,
+		resp => return Err(Error::Message(format!("Invalid RPC response: {:?}", resp))),
+	};
+
+	let new_entry = match config.members.get(&candidates[0]) {
+		None => NetworkConfigEntry {
+			datacenter: args
+				.datacenter
+				.expect("Please specifiy a datacenter with the -d flag"),
+			n_tokens: args
+				.n_tokens
+				.expect("Please specifiy a number of tokens with the -n flag"),
+			tag: args.tag.unwrap_or("".to_string()),
+		},
+		Some(old) => NetworkConfigEntry {
+			datacenter: args.datacenter.unwrap_or(old.datacenter.to_string()),
+			n_tokens: args.n_tokens.unwrap_or(old.n_tokens),
+			tag: args.tag.unwrap_or(old.tag.to_string()),
+		},
+	};
+
+	config.members.insert(candidates[0].clone(), new_entry);
+	config.version += 1;
+
+	rpc_cli
+		.call(
+			&rpc_host,
+			&Message::AdvertiseConfig(config),
+			ADMIN_RPC_TIMEOUT,
+		)
+		.await??;
+	Ok(())
+}
+
+async fn cmd_remove(
+	rpc_cli: RpcAddrClient<Message>,
+	rpc_host: SocketAddr,
+	args: RemoveNodeOpt,
+) -> Result<(), Error> {
+	let mut config = match rpc_cli
+		.call(&rpc_host, &Message::PullConfig, ADMIN_RPC_TIMEOUT)
+		.await??
+	{
+		Message::AdvertiseConfig(cfg) => cfg,
+		resp => return Err(Error::Message(format!("Invalid RPC response: {:?}", resp))),
+	};
+
+	let mut candidates = vec![];
+	for (key, _) in config.members.iter() {
+		if hex::encode(key).starts_with(&args.node_id) {
+			candidates.push(*key);
+		}
+	}
+	if candidates.len() != 1 {
+		return Err(Error::Message(format!(
+			"{} matching nodes",
+			candidates.len()
+		)));
+	}
+
+	if !args.yes {
+		return Err(Error::Message(format!(
+			"Add the flag --yes to really remove {:?} from the cluster",
+			candidates[0]
+		)));
+	}
+
+	config.members.remove(&candidates[0]);
+	config.version += 1;
+
+	rpc_cli
+		.call(
+			&rpc_host,
+			&Message::AdvertiseConfig(config),
+			ADMIN_RPC_TIMEOUT,
+		)
+		.await??;
+	Ok(())
+}
+
+async fn cmd_admin(
+	rpc_cli: RpcAddrClient<AdminRPC>,
+	rpc_host: SocketAddr,
+	args: AdminRPC,
+) -> Result<(), Error> {
+	match rpc_cli.call(&rpc_host, args, ADMIN_RPC_TIMEOUT).await?? {
+		AdminRPC::Ok(msg) => {
+			println!("{}", msg);
+		}
+		AdminRPC::BucketList(bl) => {
+			println!("List of buckets:");
+			for bucket in bl {
+				println!("{}", bucket);
+			}
+		}
+		AdminRPC::BucketInfo(bucket) => {
+			println!("{:?}", bucket);
+		}
+		AdminRPC::KeyList(kl) => {
+			println!("List of keys:");
+			for key in kl {
+				println!("{}\t{}", key.0, key.1);
+			}
+		}
+		AdminRPC::KeyInfo(key) => {
+			println!("{:?}", key);
+		}
+		r => {
+			error!("Unexpected response: {:?}", r);
+		}
+	}
+	Ok(())
+}