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Merge pull request 'Add support for binding to unix domain sockets' (#640) from networkException/garage:unix-sockets into main

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Reviewed-on: https://git.deuxfleurs.fr/Deuxfleurs/garage/pulls/640
This commit is contained in:
Alex 2023-10-03 16:23:02 +00:00
commit 1243db87f2
14 changed files with 213 additions and 36 deletions
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16
Cargo.lock generated
View file

@ -1271,6 +1271,7 @@ dependencies = [
"http-range",
"httpdate",
"hyper",
"hyperlocal",
"idna",
"md-5",
"multer",
@ -1459,8 +1460,10 @@ dependencies = [
"garage_util",
"http",
"hyper",
"hyperlocal",
"opentelemetry",
"percent-encoding",
"tokio",
"tracing",
]
@ -1770,6 +1773,19 @@ dependencies = [
"tokio-io-timeout",
]
[[package]]
name = "hyperlocal"
version = "0.8.0"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "0fafdf7b2b2de7c9784f76e02c0935e65a8117ec3b768644379983ab333ac98c"
dependencies = [
"futures-util",
"hex",
"hyper",
"pin-project",
"tokio",
]
[[package]]
name = "iana-time-zone"
version = "0.1.57"

22
Cargo.nix
View file

@ -33,7 +33,7 @@ args@{
ignoreLockHash,
}:
let
nixifiedLockHash = "ab8dba64b487c83fa25ebafbad99538d2f38afa5b53f83e4e031b7909665166b";
nixifiedLockHash = "b73d35e98dc62acc3b01aba2cb825ba6e99217e46781b8c59f8e0ceef34e79d6";
workspaceSrc = if args.workspaceSrc == null then ./. else args.workspaceSrc;
currentLockHash = builtins.hashFile "sha256" (workspaceSrc + /Cargo.lock);
lockHashIgnored = if ignoreLockHash
@ -1809,6 +1809,7 @@ in
http_range = (rustPackages."registry+https://github.com/rust-lang/crates.io-index".http-range."0.1.5" { inherit profileName; }).out;
httpdate = (rustPackages."registry+https://github.com/rust-lang/crates.io-index".httpdate."1.0.3" { inherit profileName; }).out;
hyper = (rustPackages."registry+https://github.com/rust-lang/crates.io-index".hyper."0.14.27" { inherit profileName; }).out;
hyperlocal = (rustPackages."registry+https://github.com/rust-lang/crates.io-index".hyperlocal."0.8.0" { inherit profileName; }).out;
idna = (rustPackages."registry+https://github.com/rust-lang/crates.io-index".idna."0.4.0" { inherit profileName; }).out;
md5 = (rustPackages."registry+https://github.com/rust-lang/crates.io-index".md-5."0.10.5" { inherit profileName; }).out;
multer = (rustPackages."registry+https://github.com/rust-lang/crates.io-index".multer."2.1.0" { inherit profileName; }).out;
@ -2059,8 +2060,10 @@ in
garage_util = (rustPackages."unknown".garage_util."0.8.4" { inherit profileName; }).out;
http = (rustPackages."registry+https://github.com/rust-lang/crates.io-index".http."0.2.9" { inherit profileName; }).out;
hyper = (rustPackages."registry+https://github.com/rust-lang/crates.io-index".hyper."0.14.27" { inherit profileName; }).out;
hyperlocal = (rustPackages."registry+https://github.com/rust-lang/crates.io-index".hyperlocal."0.8.0" { inherit profileName; }).out;
opentelemetry = (rustPackages."registry+https://github.com/rust-lang/crates.io-index".opentelemetry."0.17.0" { inherit profileName; }).out;
percent_encoding = (rustPackages."registry+https://github.com/rust-lang/crates.io-index".percent-encoding."2.3.0" { inherit profileName; }).out;
tokio = (rustPackages."registry+https://github.com/rust-lang/crates.io-index".tokio."1.32.0" { inherit profileName; }).out;
tracing = (rustPackages."registry+https://github.com/rust-lang/crates.io-index".tracing."0.1.37" { inherit profileName; }).out;
};
});
@ -2486,6 +2489,23 @@ in
};
});
"registry+https://github.com/rust-lang/crates.io-index".hyperlocal."0.8.0" = overridableMkRustCrate (profileName: rec {
name = "hyperlocal";
version = "0.8.0";
registry = "registry+https://github.com/rust-lang/crates.io-index";
src = fetchCratesIo { inherit name version; sha256 = "0fafdf7b2b2de7c9784f76e02c0935e65a8117ec3b768644379983ab333ac98c"; };
features = builtins.concatLists [
[ "server" ]
];
dependencies = {
futures_util = (rustPackages."registry+https://github.com/rust-lang/crates.io-index".futures-util."0.3.28" { inherit profileName; }).out;
hex = (rustPackages."registry+https://github.com/rust-lang/crates.io-index".hex."0.4.3" { inherit profileName; }).out;
hyper = (rustPackages."registry+https://github.com/rust-lang/crates.io-index".hyper."0.14.27" { inherit profileName; }).out;
pin_project = (rustPackages."registry+https://github.com/rust-lang/crates.io-index".pin-project."1.1.3" { inherit profileName; }).out;
tokio = (rustPackages."registry+https://github.com/rust-lang/crates.io-index".tokio."1.32.0" { inherit profileName; }).out;
};
});
"registry+https://github.com/rust-lang/crates.io-index".iana-time-zone."0.1.57" = overridableMkRustCrate (profileName: rec {
name = "iana-time-zone";
version = "0.1.57";

7
doc/book/reference-manual/configuration.md
View file

@ -410,6 +410,8 @@ manually.
The IP and port on which to bind for accepting S3 API calls.
This endpoint does not suport TLS: a reverse proxy should be used to provide it.
Alternatively, since `v0.8.5`, a path can be used to create a unix socket with 0222 mode.
### `s3_region`
Garage will accept S3 API calls that are targetted to the S3 region defined here.
@ -439,6 +441,8 @@ The IP and port on which to bind for accepting HTTP requests to buckets configur
for website access.
This endpoint does not suport TLS: a reverse proxy should be used to provide it.
Alternatively, since `v0.8.5`, a path can be used to create a unix socket with 0222 mode.
### `root_domain`
The optional suffix appended to bucket names for the corresponding HTTP Host.
@ -458,6 +462,9 @@ If specified, Garage will bind an HTTP server to this port and address, on
which it will listen to requests for administration features.
See [administration API reference](@/documentation/reference-manual/admin-api.md) to learn more about these features.
Alternatively, since `v0.8.5`, a path can be used to create a unix socket. Note that for security reasons,
the socket will have 0220 mode. Make sure to set user and group permissions accordingly.
### `metrics_token`, `metrics_token_file` or `GARAGE_METRICS_TOKEN` (env)
The token for accessing the Metrics endpoint. If this token is not set, the

1
src/api/Cargo.toml
View file

@ -45,6 +45,7 @@ http = "0.2"
httpdate = "1.0"
http-range = "0.1"
hyper = { version = "0.14", features = ["server", "http1", "runtime", "tcp", "stream"] }
hyperlocal = { version = "0.8.0", default-features = false, features = ["server"] }
multer = "2.0"
percent-encoding = "2.1.0"
roxmltree = "0.18"

6
src/api/admin/api_server.rs
View file

@ -1,5 +1,4 @@
use std::collections::HashMap;
use std::net::SocketAddr;
use std::sync::Arc;
use async_trait::async_trait;
@ -18,6 +17,7 @@ use prometheus::{Encoder, TextEncoder};
use garage_model::garage::Garage;
use garage_rpc::system::ClusterHealthStatus;
use garage_util::error::Error as GarageError;
use garage_util::socket_address::UnixOrTCPSocketAddress;
use crate::generic_server::*;
@ -61,12 +61,12 @@ impl AdminApiServer {
pub async fn run(
self,
bind_addr: SocketAddr,
bind_addr: UnixOrTCPSocketAddress,
shutdown_signal: impl Future<Output = ()>,
) -> Result<(), GarageError> {
let region = self.garage.config.s3_api.s3_region.clone();
ApiServer::new(region, self)
.run_server(bind_addr, shutdown_signal)
.run_server(bind_addr, Some(0o220), shutdown_signal)
.await
}

60
src/api/generic_server.rs
View file

@ -1,4 +1,5 @@
use std::net::SocketAddr;
use std::fs::{self, Permissions};
use std::os::unix::fs::PermissionsExt;
use std::sync::Arc;
use async_trait::async_trait;
@ -11,6 +12,10 @@ use hyper::service::{make_service_fn, service_fn};
use hyper::{Body, Request, Response, Server};
use hyper::{HeaderMap, StatusCode};
use hyperlocal::UnixServerExt;
use tokio::net::UnixStream;
use opentelemetry::{
global,
metrics::{Counter, ValueRecorder},
@ -21,6 +26,7 @@ use opentelemetry::{
use garage_util::error::Error as GarageError;
use garage_util::forwarded_headers;
use garage_util::metrics::{gen_trace_id, RecordDuration};
use garage_util::socket_address::UnixOrTCPSocketAddress;
pub(crate) trait ApiEndpoint: Send + Sync + 'static {
fn name(&self) -> &'static str;
@ -91,10 +97,11 @@ impl<A: ApiHandler> ApiServer<A> {
pub async fn run_server(
self: Arc<Self>,
bind_addr: SocketAddr,
bind_addr: UnixOrTCPSocketAddress,
unix_bind_addr_mode: Option<u32>,
shutdown_signal: impl Future<Output = ()>,
) -> Result<(), GarageError> {
let service = make_service_fn(|conn: &AddrStream| {
let tcp_service = make_service_fn(|conn: &AddrStream| {
let this = self.clone();
let client_addr = conn.remote_addr();
@ -102,28 +109,63 @@ impl<A: ApiHandler> ApiServer<A> {
Ok::<_, GarageError>(service_fn(move |req: Request<Body>| {
let this = this.clone();
this.handler(req, client_addr)
this.handler(req, client_addr.to_string())
}))
}
});
let server = Server::bind(&bind_addr).serve(service);
let unix_service = make_service_fn(|_: &UnixStream| {
let this = self.clone();
let path = bind_addr.to_string();
async move {
Ok::<_, GarageError>(service_fn(move |req: Request<Body>| {
let this = this.clone();
this.handler(req, path.clone())
}))
}
});
let graceful = server.with_graceful_shutdown(shutdown_signal);
info!(
"{} API server listening on http://{}",
"{} API server listening on {}",
A::API_NAME_DISPLAY,
bind_addr
);
graceful.await?;
match bind_addr {
UnixOrTCPSocketAddress::TCPSocket(addr) => {
Server::bind(&addr)
.serve(tcp_service)
.with_graceful_shutdown(shutdown_signal)
.await?
}
UnixOrTCPSocketAddress::UnixSocket(ref path) => {
if path.exists() {
fs::remove_file(path)?
}
let bound = Server::bind_unix(path)?;
fs::set_permissions(
path,
Permissions::from_mode(unix_bind_addr_mode.unwrap_or(0o222)),
)?;
bound
.serve(unix_service)
.with_graceful_shutdown(shutdown_signal)
.await?;
}
};
Ok(())
}
async fn handler(
self: Arc<Self>,
req: Request<Body>,
addr: SocketAddr,
addr: String,
) -> Result<Response<Body>, GarageError> {
let uri = req.uri().clone();

6
src/api/k2v/api_server.rs
View file

@ -1,4 +1,3 @@
use std::net::SocketAddr;
use std::sync::Arc;
use async_trait::async_trait;
@ -9,6 +8,7 @@ use hyper::{Body, Method, Request, Response};
use opentelemetry::{trace::SpanRef, KeyValue};
use garage_util::error::Error as GarageError;
use garage_util::socket_address::UnixOrTCPSocketAddress;
use garage_model::garage::Garage;
@ -37,12 +37,12 @@ pub(crate) struct K2VApiEndpoint {
impl K2VApiServer {
pub async fn run(
garage: Arc<Garage>,
bind_addr: SocketAddr,
bind_addr: UnixOrTCPSocketAddress,
s3_region: String,
shutdown_signal: impl Future<Output = ()>,
) -> Result<(), GarageError> {
ApiServer::new(s3_region, K2VApiServer { garage })
.run_server(bind_addr, shutdown_signal)
.run_server(bind_addr, None, shutdown_signal)
.await
}
}

6
src/api/s3/api_server.rs
View file

@ -1,4 +1,3 @@
use std::net::SocketAddr;
use std::sync::Arc;
use async_trait::async_trait;
@ -10,6 +9,7 @@ use hyper::{Body, Request, Response};
use opentelemetry::{trace::SpanRef, KeyValue};
use garage_util::error::Error as GarageError;
use garage_util::socket_address::UnixOrTCPSocketAddress;
use garage_model::garage::Garage;
use garage_model::key_table::Key;
@ -44,12 +44,12 @@ pub(crate) struct S3ApiEndpoint {
impl S3ApiServer {
pub async fn run(
garage: Arc<Garage>,
addr: SocketAddr,
addr: UnixOrTCPSocketAddress,
s3_region: String,
shutdown_signal: impl Future<Output = ()>,
) -> Result<(), GarageError> {
ApiServer::new(s3_region, S3ApiServer { garage })
.run_server(addr, shutdown_signal)
.run_server(addr, None, shutdown_signal)
.await
}

10
src/garage/server.rs
View file

@ -79,7 +79,7 @@ pub async fn run_server(config_file: PathBuf, secrets: Secrets) -> Result<(), Er
"S3 API",
tokio::spawn(S3ApiServer::run(
garage.clone(),
*s3_bind_addr,
s3_bind_addr.clone(),
config.s3_api.s3_region.clone(),
wait_from(watch_cancel.clone()),
)),
@ -94,7 +94,7 @@ pub async fn run_server(config_file: PathBuf, secrets: Secrets) -> Result<(), Er
"K2V API",
tokio::spawn(K2VApiServer::run(
garage.clone(),
config.k2v_api.as_ref().unwrap().api_bind_addr,
config.k2v_api.as_ref().unwrap().api_bind_addr.clone(),
config.s3_api.s3_region.clone(),
wait_from(watch_cancel.clone()),
)),
@ -110,7 +110,7 @@ pub async fn run_server(config_file: PathBuf, secrets: Secrets) -> Result<(), Er
"Web",
tokio::spawn(WebServer::run(
garage.clone(),
web_config.bind_addr,
web_config.bind_addr.clone(),
web_config.root_domain.clone(),
wait_from(watch_cancel.clone()),
)),
@ -121,7 +121,9 @@ pub async fn run_server(config_file: PathBuf, secrets: Secrets) -> Result<(), Er
info!("Launching Admin API server...");
servers.push((
"Admin",
tokio::spawn(admin_server.run(*admin_bind_addr, wait_from(watch_cancel.clone()))),
tokio::spawn(
admin_server.run(admin_bind_addr.clone(), wait_from(watch_cancel.clone())),
),
));
}

9
src/util/config.rs
View file

@ -7,6 +7,7 @@ use std::path::PathBuf;
use serde::{de, Deserialize};
use crate::error::Error;
use crate::socket_address::UnixOrTCPSocketAddress;
/// Represent the whole configuration
#[derive(Deserialize, Debug, Clone)]
@ -102,7 +103,7 @@ pub struct Config {
#[derive(Deserialize, Debug, Clone)]
pub struct S3ApiConfig {
/// Address and port to bind for api serving
pub api_bind_addr: Option<SocketAddr>,
pub api_bind_addr: Option<UnixOrTCPSocketAddress>,
/// S3 region to use
pub s3_region: String,
/// Suffix to remove from domain name to find bucket. If None,
@ -114,14 +115,14 @@ pub struct S3ApiConfig {
#[derive(Deserialize, Debug, Clone)]
pub struct K2VApiConfig {
/// Address and port to bind for api serving
pub api_bind_addr: SocketAddr,
pub api_bind_addr: UnixOrTCPSocketAddress,
}
/// Configuration for serving files as normal web server
#[derive(Deserialize, Debug, Clone)]
pub struct WebConfig {
/// Address and port to bind for web serving
pub bind_addr: SocketAddr,
pub bind_addr: UnixOrTCPSocketAddress,
/// Suffix to remove from domain name to find bucket
pub root_domain: String,
}
@ -130,7 +131,7 @@ pub struct WebConfig {
#[derive(Deserialize, Debug, Clone, Default)]
pub struct AdminConfig {
/// Address and port to bind for admin API serving
pub api_bind_addr: Option<SocketAddr>,
pub api_bind_addr: Option<UnixOrTCPSocketAddress>,
/// Bearer token to use to scrape metrics
pub metrics_token: Option<String>,

1
src/util/lib.rs
View file

@ -14,6 +14,7 @@ pub mod forwarded_headers;
pub mod metrics;
pub mod migrate;
pub mod persister;
pub mod socket_address;
pub mod time;
pub mod tranquilizer;
pub mod version;

44
src/util/socket_address.rs Normal file
View file

@ -0,0 +1,44 @@
use std::fmt::{Debug, Display, Formatter};
use std::net::SocketAddr;
use std::path::PathBuf;
use std::str::FromStr;
use serde::de::Error;
use serde::{Deserialize, Deserializer};
#[derive(Debug, Clone)]
pub enum UnixOrTCPSocketAddress {
TCPSocket(SocketAddr),
UnixSocket(PathBuf),
}
impl Display for UnixOrTCPSocketAddress {
fn fmt(&self, formatter: &mut Formatter<'_>) -> std::fmt::Result {
match self {
UnixOrTCPSocketAddress::TCPSocket(address) => write!(formatter, "http://{}", address),
UnixOrTCPSocketAddress::UnixSocket(path) => {
write!(formatter, "http+unix://{}", path.to_string_lossy())
}
}
}
}
impl<'de> Deserialize<'de> for UnixOrTCPSocketAddress {
fn deserialize<D>(deserializer: D) -> Result<Self, D::Error>
where
D: Deserializer<'de>,
{
let string = String::deserialize(deserializer)?;
let string = string.as_str();
if string.starts_with("/") {
Ok(UnixOrTCPSocketAddress::UnixSocket(
PathBuf::from_str(string).map_err(Error::custom)?,
))
} else {
Ok(UnixOrTCPSocketAddress::TCPSocket(
SocketAddr::from_str(string).map_err(Error::custom)?,
))
}
}
}

3
src/web/Cargo.toml
View file

@ -27,5 +27,8 @@ futures = "0.3"
http = "0.2"
hyper = { version = "0.14", features = ["server", "http1", "runtime", "tcp", "stream"] }
hyperlocal = { version = "0.8.0", default-features = false, features = ["server"] }
tokio = { version = "1.0", default-features = false, features = ["net"] }
opentelemetry = "0.17"

58
src/web/web_server.rs
View file

@ -1,4 +1,6 @@
use std::{convert::Infallible, net::SocketAddr, sync::Arc};
use std::fs::{self, Permissions};
use std::os::unix::prelude::PermissionsExt;
use std::{convert::Infallible, sync::Arc};
use futures::future::Future;
@ -9,6 +11,10 @@ use hyper::{
Body, Method, Request, Response, Server, StatusCode,
};
use hyperlocal::UnixServerExt;
use tokio::net::UnixStream;
use opentelemetry::{
global,
metrics::{Counter, ValueRecorder},
@ -32,6 +38,7 @@ use garage_util::data::Uuid;
use garage_util::error::Error as GarageError;
use garage_util::forwarded_headers;
use garage_util::metrics::{gen_trace_id, RecordDuration};
use garage_util::socket_address::UnixOrTCPSocketAddress;
struct WebMetrics {
request_counter: Counter<u64>,
@ -69,7 +76,7 @@ impl WebServer {
/// Run a web server
pub async fn run(
garage: Arc<Garage>,
addr: SocketAddr,
addr: UnixOrTCPSocketAddress,
root_domain: String,
shutdown_signal: impl Future<Output = ()>,
) -> Result<(), GarageError> {
@ -80,7 +87,7 @@ impl WebServer {
root_domain,
});
let service = make_service_fn(|conn: &AddrStream| {
let tcp_service = make_service_fn(|conn: &AddrStream| {
let web_server = web_server.clone();
let client_addr = conn.remote_addr();
@ -88,23 +95,56 @@ impl WebServer {
Ok::<_, Error>(service_fn(move |req: Request<Body>| {
let web_server = web_server.clone();
web_server.handle_request(req, client_addr)
web_server.handle_request(req, client_addr.to_string())
}))
}
});
let server = Server::bind(&addr).serve(service);
let graceful = server.with_graceful_shutdown(shutdown_signal);
info!("Web server listening on http://{}", addr);
let unix_service = make_service_fn(|_: &UnixStream| {
let web_server = web_server.clone();
let path = addr.to_string();
async move {
Ok::<_, Error>(service_fn(move |req: Request<Body>| {
let web_server = web_server.clone();
web_server.handle_request(req, path.clone())
}))
}
});
info!("Web server listening on {}", addr);
match addr {
UnixOrTCPSocketAddress::TCPSocket(addr) => {
Server::bind(&addr)
.serve(tcp_service)
.with_graceful_shutdown(shutdown_signal)
.await?
}
UnixOrTCPSocketAddress::UnixSocket(ref path) => {
if path.exists() {
fs::remove_file(path)?
}
let bound = Server::bind_unix(path)?;
fs::set_permissions(path, Permissions::from_mode(0o222))?;
bound
.serve(unix_service)
.with_graceful_shutdown(shutdown_signal)
.await?;
}
};
graceful.await?;
Ok(())
}
async fn handle_request(
self: Arc<Self>,
req: Request<Body>,
addr: SocketAddr,
addr: String,
) -> Result<Response<Body>, Infallible> {
if let Ok(forwarded_for_ip_addr) =
forwarded_headers::handle_forwarded_for_headers(req.headers())