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WIP upgraded hyper-reverse-proxy, hyper, and futures

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Brandon Thomas
2020-09-07 14:12:40 -04:00
parent 74de16f952
commit 8a5eda6aa8
5 changed files with 403 additions and 351 deletions
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Cargo.lock
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+271 -319
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source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "57fc868aae093479e3131e3d165c93b1c7474109d13c90ec0dda2a1bbfff0674"
dependencies = [
"bytes",
"futures",
"log",
]
[[package]]
name = "tokio-reactor"
version = "0.1.12"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "09bc590ec4ba8ba87652da2068d150dcada2cfa2e07faae270a5e0409aa51351"
dependencies = [
"crossbeam-utils",
"futures",
"lazy_static",
"log",
"mio",
"num_cpus",
"parking_lot",
"slab",
"tokio-executor",
"tokio-io",
"tokio-sync",
]
[[package]]
name = "tokio-sync"
version = "0.1.8"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "edfe50152bc8164fcc456dab7891fa9bf8beaf01c5ee7e1dd43a397c3cf87dee"
dependencies = [
"fnv",
"futures",
"futures-core",
"iovec",
"lazy_static",
"libc",
"memchr",
"mio",
"mio-named-pipes",
"mio-uds",
"num_cpus",
"pin-project-lite",
"signal-hook-registry",
"slab",
"tokio-macros",
"winapi 0.3.9",
]
[[package]]
name = "tokio-tcp"
version = "0.1.4"
name = "tokio-macros"
version = "0.2.5"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "98df18ed66e3b72e742f185882a9e201892407957e45fbff8da17ae7a7c51f72"
checksum = "f0c3acc6aa564495a0f2e1d59fab677cd7f81a19994cfc7f3ad0e64301560389"
dependencies = [
"proc-macro2",
"quote",
"syn",
]
[[package]]
name = "tokio-util"
version = "0.3.1"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "be8242891f2b6cbef26a2d7e8605133c2c554cd35b3e4948ea892d6d68436499"
dependencies = [
"bytes",
"futures",
"iovec",
"mio",
"tokio-io",
"tokio-reactor",
]
[[package]]
name = "tokio-threadpool"
version = "0.1.18"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "df720b6581784c118f0eb4310796b12b1d242a7eb95f716a8367855325c25f89"
dependencies = [
"crossbeam-deque",
"crossbeam-queue",
"crossbeam-utils",
"futures",
"lazy_static",
"futures-core",
"futures-sink",
"log",
"num_cpus",
"slab",
"tokio-executor",
]
[[package]]
name = "tokio-timer"
version = "0.2.13"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "93044f2d313c95ff1cb7809ce9a7a05735b012288a888b62d4434fd58c94f296"
dependencies = [
"crossbeam-utils",
"futures",
"slab",
"tokio-executor",
"pin-project-lite",
"tokio",
]
[[package]]
@@ -835,6 +761,32 @@ dependencies = [
"serde",
]
[[package]]
name = "tower-service"
version = "0.3.0"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "e987b6bf443f4b5b3b6f38704195592cca41c5bb7aedd3c3693c7081f8289860"
[[package]]
name = "tracing"
version = "0.1.19"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "6d79ca061b032d6ce30c660fded31189ca0b9922bf483cd70759f13a2d86786c"
dependencies = [
"cfg-if",
"log",
"tracing-core",
]
[[package]]
name = "tracing-core"
version = "0.1.15"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "4f0e00789804e99b20f12bc7003ca416309d28a6f495d6af58d1e2c2842461b5"
dependencies = [
"lazy_static",
]
[[package]]
name = "try-lock"
version = "0.2.2"
@@ -856,6 +808,7 @@ dependencies = [
"serde",
"serde_derive",
"serde_json",
"tokio",
"toml",
]
@@ -882,11 +835,10 @@ checksum = "b5a972e5669d67ba988ce3dc826706fb0a8b01471c088cb0b6110b805cc36aed"
[[package]]
name = "want"
version = "0.2.0"
version = "0.3.0"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "b6395efa4784b027708f7451087e647ec73cc74f5d9bc2e418404248d679a230"
checksum = "1ce8a968cb1cd110d136ff8b819a556d6fb6d919363c61534f6860c7eb172ba0"
dependencies = [
"futures",
"log",
"try-lock",
]
Cargo.toml
+4 -3
View File
@@ -15,13 +15,14 @@ path = "src/main.rs"
[dependencies]
anyhow = "1.0.31"
env_logger = "0.7.1"
futures = "0.1"
hyper = "0.12"
hyper-reverse-proxy = "0.4"
futures = "0.3"
hyper = "0.13"
hyper-reverse-proxy = { git = "https://github.com/felipenoris/hyper-reverse-proxy.git", commit = "d109fcbd629c62eeb5c34bec1074d737e7b58529" }
log = "0.4.8"
newrelic = "0.2.2"
rand = "0.7.3"
serde = "1.0.104"
serde_derive = "1.0.104"
serde_json = "1.0.55"
tokio = { version = "0.2", features = ["full"] }
toml = "0.5.6"
README.md
+51
View File
@@ -4,3 +4,54 @@ voder-proxy
Intercept requests to `voder/tts_service` and determine the appropriate
backend to send them to. This acts as a load balancer of sorts.
make_service_fn ->
service_fn(|req : Request<Body>| -> ServiceFn<F,R>)
It can return:
- Ok(Response::new(Body::from("whatevs)))
- Err("some explanation")
I'm doing matching on the route and method,
speak_proxy(req: Request<Body>, ... other args ...) -> BoxFut
where BoxFut = Box<dyn Future<Item=Response<Body>, Error=hyper::Error> + Send>
this also calls,
hyper_reverse_proxy::call(
client_ip: IpAddr,
forward_uri: &str,
request: Request<Body>) -> BoxFut
Future is from futures-0.1.29
boxed() -> BoxFut<> + Send
* Use Box::new() to get around Send
map() can turn Future<Item=T> into Future<Item=U>
* Only called on success
* Consumes the future
* future::ok(1).map(|x| x+3) -> Ok(4)
map_err()
* Only called on error
* future::err(1).map_err(|x| x+3) -> Err(4)
and_then() can create a future(?)
then() runs the future, no matter what
* Runs over Result<> type
* Returns `IntoFuture` trait type; Result has this
* future::ok(1).then(|x| match x { OK() => {} Err => { future::ok(...) } }
and_then() execute another future
* Runs over Ok()/Item type.
and_then() execute another future in success case
* Runs over Ok()/Item type.
or_else() execute another future in fail case
* Runs over Err()/Error type.
inspect() look at the future, but pass it on!
src/main.rs
+32 -21
View File
@@ -7,17 +7,17 @@ pub mod speak_proxy;
use anyhow::Result as AnyhowResult;
use crate::newrelic_logger::{NewRelicLogger, MaybeNewRelicTransaction};
use crate::speak_proxy::{speak_proxy, speak_proxy_with_retry};
use crate::speak_proxy::handle;
use futures::future::{self, Future};
use hyper::Method;
use hyper::header::HeaderValue;
use hyper::http::header::HeaderName;
use hyper::rt::Stream;
use hyper::server::conn::AddrStream;
use hyper::service::{service_fn, make_service_fn};
use hyper::{Body, Request, Response, Server};
use rand::seq::IteratorRandom;
use std::collections::HashMap;
use std::convert::Infallible;
use std::env;
use std::fmt::Debug;
use std::fmt::Display;
@@ -25,7 +25,8 @@ use std::net::SocketAddr;
use std::str::FromStr;
use std::sync::Arc;
type BoxFut = Box<dyn Future<Item=Response<Body>, Error=hyper::Error> + Send>;
//type BoxFut = Box<dyn Future + Send>;
type BoxFut = Box<dyn Future<Output=Response<Body>> + Send>;
const ENV_DEFAULT_ROUTE : &'static str = "DEFAULT_ROUTE";
const ENV_NEWRELIC_API_KEY : &'static str = "NEWRELIC_API_KEY";
@@ -88,16 +89,16 @@ fn get_env_num<T>(env_name: &str, default: T) -> AnyhowResult<T>
}
}
fn _debug_request(req: Request<Body>) -> BoxFut {
/*fn _debug_request(req: Request<Body>) -> BoxFut {
let body_str = format!("{:?}", req);
let response = Response::new(Body::from(body_str));
Box::new(future::ok(response))
}
}*/
fn health_check_response(_req: Request<Body>) -> BoxFut {
/*fn health_check_response(_req: Request<Body>) -> BoxFut {
let response = Response::new(Body::from("healthy"));
Box::new(future::ok(response))
}
}*/
pub struct Router {
pub routes: HashMap<String, String>,
@@ -120,7 +121,8 @@ impl Router {
}
}
fn main() -> AnyhowResult<()> {
#[tokio::main]
async fn main() {
if env::var(ENV_RUST_LOG)
.as_ref()
.ok()
@@ -134,7 +136,8 @@ fn main() -> AnyhowResult<()> {
env_logger::init();
let default_route = get_env_string(ENV_DEFAULT_ROUTE, DEFAULT_DEFAULT_ROUTE);
let service_port = get_env_num::<u16>(ENV_SERVICE_PORT, DEFAULT_SERVICE_PORT)?;
let service_port = get_env_num::<u16>(ENV_SERVICE_PORT, DEFAULT_SERVICE_PORT)
.expect("should have env var");
let newrelic_api_key = get_env_string(ENV_NEWRELIC_API_KEY, DEFAULT_NEWRELIC_API_KEY);
info!("Default route: {}", default_route);
@@ -142,7 +145,8 @@ fn main() -> AnyhowResult<()> {
let proxy_configs_file = get_env_string(ENV_PROXY_CONFIG_FILE, DEFAULT_PROXY_CONFIG_FILE);
info!("Proxy config file: {}", proxy_configs_file);
let proxy_configs = ProxyConfigs::load_from_file(&proxy_configs_file)?;
let proxy_configs = ProxyConfigs::load_from_file(&proxy_configs_file)
.expect("should have configs");
info!("Proxy configs: {:?}", proxy_configs);
let mut route_map = HashMap::new();
@@ -165,7 +169,7 @@ fn main() -> AnyhowResult<()> {
let newrelic_logger = Arc::new(newrelic_logger);
let make_service = make_service_fn(move |socket: &AddrStream| {
/*let make_service = make_service_fn(move |socket: &AddrStream| {
let remote_addr = socket.remote_addr();
info!("Got a request from: {:?}", remote_addr);
@@ -177,18 +181,18 @@ fn main() -> AnyhowResult<()> {
let newrelic_logger3 = newrelic_logger2.clone();
match (req.method(), req.uri().path()) {
(&Method::POST, "/speak") => {
/*(&Method::POST, "/speak") => {
let nr_transaction = newrelic_logger3.web_transaction("/speak");
speak_proxy_with_retry(req, remote_addr.clone(), router3, nr_transaction, "/speak")
speak_proxy(req, remote_addr.clone(), router3, nr_transaction, "/speak")
},
(&Method::POST, "/speak_spectrogram") => {
let nr_transaction = newrelic_logger3.web_transaction("/speak_spectrogram");
speak_proxy(req, remote_addr.clone(), router3, nr_transaction, "/speak_spectrogram")
},
(&Method::GET, "/proxy_health") => {
},*/
/*(&Method::GET, "/proxy_health") => {
let _droppable_transaction = newrelic_logger3.web_transaction("/proxy_health");
health_check_response(req)
},
},*/
_ => {
let _droppable_transaction = newrelic_logger3.web_transaction("unmatched endpoint");
let forward = router3.get_random_host();
@@ -197,17 +201,24 @@ fn main() -> AnyhowResult<()> {
}
}
})
});*/
let make_service = make_service_fn(|conn: &AddrStream| {
let remote_addr = conn.remote_addr().ip();
async move {
Ok::<_, Infallible>(service_fn(move |req| handle(remote_addr, req)))
}
});
let addr = ([0, 0, 0, 0], service_port).into();
info!("Running server on {:?}", addr);
let server = Server::bind(&addr)
.serve(make_service)
.map_err(|e| eprintln!("server error: {}", e));
let server = Server::bind(&addr).serve(make_service);
hyper::rt::run(server);
if let Err(e) = server.await {
eprintln!("server error: {}", e);
}
Ok(())
()
}
src/speak_proxy.rs
+44 -7
View File
@@ -2,10 +2,9 @@ use anyhow::Result as AnyhowResult;
use crate::{BoxFut, Router};
use crate::newrelic_logger::{NewRelicLogger, MaybeNewRelicTransaction};
use futures::future::{self, Future};
use hyper::Method;
use hyper::{Method, StatusCode};
use hyper::header::HeaderValue;
use hyper::http::header::HeaderName;
use hyper::rt::Stream;
use hyper::server::conn::AddrStream;
use hyper::service::{service_fn, make_service_fn};
use hyper::{Body, Request, Response, Server};
@@ -14,10 +13,10 @@ use std::collections::HashMap;
use std::env;
use std::fmt::Debug;
use std::fmt::Display;
use std::net::SocketAddr;
use std::net::{SocketAddr, IpAddr};
use std::str::FromStr;
use std::sync::Arc;
use futures::IntoFuture;
use std::convert::Infallible;
/// NB: This much match the shape of SpeakRequest in the 'voder/tts_service' code.
/// This is used for both /speak and /speak_spectrogram requests.
@@ -34,7 +33,15 @@ struct RequestDetails {
pub speaker: String,
}
pub fn speak_proxy_with_retry(
/*pub fn copy_request(request: &Request<Body>) -> Request<Body> {
let body = hyper::body::to_bytes(request.body());
Request::builder()
.uri(request.uri())
.method(request.method())
.unwrap()
}*/
/*pub fn speak_proxy_with_retry(
req: Request<Body>,
remote_addr: SocketAddr,
router: Arc<Router>,
@@ -49,9 +56,9 @@ pub fn speak_proxy_with_retry(
}
})
.boxed()
}
}*/
pub fn speak_proxy(
/*pub fn speak_proxy(
req: Request<Body>,
remote_addr: SocketAddr,
router: Arc<Router>,
@@ -112,4 +119,34 @@ pub fn speak_proxy(
hyper_reverse_proxy::call(remote_addr.ip(), &proxy_host, new_req)
}))
}*/
fn debug_request(req: Request<Body>) -> Result<Response<Body>, Infallible> {
let body_str = format!("{:?}", req);
Ok(Response::new(Body::from(body_str)))
}
pub async fn handle(client_ip: IpAddr, req: Request<Body>) -> Result<Response<Body>, Infallible> {
if req.uri().path().starts_with("/target/first") {
// will forward requests to port 13901
match hyper_reverse_proxy::call(client_ip, "http://127.0.0.1:13901", req).await {
Ok(response) => {Ok(response)}
Err(error) => {Ok(Response::builder()
.status(StatusCode::INTERNAL_SERVER_ERROR)
.body(Body::empty())
.unwrap())}
}
} else if req.uri().path().starts_with("/target/second") {
// will forward requests to port 13902
match hyper_reverse_proxy::call(client_ip, "http://127.0.0.1:13902", req).await {
Ok(response) => {Ok(response)}
Err(error) => {Ok(Response::builder()
.status(StatusCode::INTERNAL_SERVER_ERROR)
.body(Body::empty())
.unwrap())}
}
} else {
debug_request(req)
}
}