123 lines
3.2 KiB
Rust
123 lines
3.2 KiB
Rust
//! Contains type and functions related to Garage configuration file
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use std::io::Read;
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use std::net::SocketAddr;
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use std::path::PathBuf;
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use serde::de::Error as SerdeError;
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use serde::{de, Deserialize};
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use netapp::util::parse_and_resolve_peer_addr;
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use netapp::NodeID;
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use crate::error::Error;
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/// Represent the whole configuration
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#[derive(Deserialize, Debug, Clone)]
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pub struct Config {
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/// Path where to store metadata. Should be fast, but low volume
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pub metadata_dir: PathBuf,
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/// Path where to store data. Can be slower, but need higher volume
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pub data_dir: PathBuf,
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/// Size of data blocks to save to disk
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#[serde(default = "default_block_size")]
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pub block_size: usize,
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/// Replication mode. Supported values:
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/// - none, 1 -> no replication
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/// - 2 -> 2-way replication
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/// - 3 -> 3-way replication
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// (we can add more aliases for this later)
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pub replication_mode: String,
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/// RPC secret key: 32 bytes hex encoded
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pub rpc_secret: String,
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/// Address to bind for RPC
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pub rpc_bind_addr: SocketAddr,
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/// Public IP address of this node
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pub rpc_public_addr: Option<SocketAddr>,
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/// Bootstrap peers RPC address
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#[serde(deserialize_with = "deserialize_vec_addr", default)]
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pub bootstrap_peers: Vec<(NodeID, SocketAddr)>,
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/// Consul host to connect to to discover more peers
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pub consul_host: Option<String>,
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/// Consul service name to use
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pub consul_service_name: Option<String>,
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/// Sled cache size, in bytes
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#[serde(default = "default_sled_cache_capacity")]
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pub sled_cache_capacity: u64,
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/// Sled flush interval in milliseconds
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#[serde(default = "default_sled_flush_every_ms")]
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pub sled_flush_every_ms: u64,
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/// Configuration for S3 api
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pub s3_api: ApiConfig,
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/// Configuration for serving files as normal web server
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pub s3_web: WebConfig,
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}
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/// Configuration for S3 api
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#[derive(Deserialize, Debug, Clone)]
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pub struct ApiConfig {
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/// Address and port to bind for api serving
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pub api_bind_addr: SocketAddr,
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/// S3 region to use
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pub s3_region: String,
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}
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/// Configuration for serving files as normal web server
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#[derive(Deserialize, Debug, Clone)]
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pub struct WebConfig {
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/// Address and port to bind for web serving
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pub bind_addr: SocketAddr,
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/// Suffix to remove from domain name to find bucket
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pub root_domain: String,
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/// Suffix to add when user-agent request path end with "/"
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pub index: String,
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}
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fn default_sled_cache_capacity() -> u64 {
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128 * 1024 * 1024
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}
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fn default_sled_flush_every_ms() -> u64 {
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2000
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}
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fn default_block_size() -> usize {
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1048576
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}
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/// Read and parse configuration
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pub fn read_config(config_file: PathBuf) -> Result<Config, Error> {
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let mut file = std::fs::OpenOptions::new()
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.read(true)
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.open(config_file.as_path())?;
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let mut config = String::new();
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file.read_to_string(&mut config)?;
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Ok(toml::from_str(&config)?)
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}
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fn deserialize_vec_addr<'de, D>(deserializer: D) -> Result<Vec<(NodeID, SocketAddr)>, D::Error>
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where
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D: de::Deserializer<'de>,
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{
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let mut ret = vec![];
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for peer in <Vec<&str>>::deserialize(deserializer)? {
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let (pubkey, addrs) = parse_and_resolve_peer_addr(peer).ok_or_else(|| {
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D::Error::custom(format!("Unable to parse or resolve peer: {}", peer))
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})?;
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for ip in addrs {
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ret.push((pubkey, ip));
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}
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}
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Ok(ret)
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}
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