The proxy depends on `protoc`-generated gRPC bindings to communicate
with the controller. In order to generate these bindings, build-time
dependencies must be compiled.
In order to support a more granular, cacheable build scheme, a new crate
has been created to house these gRPC bindings,
`conduit-proxy-controller-grpc`.
Because `TryFrom` and `TryInto` conversions are implemented for
protobuf-defined types, the `convert` module also had to be moved to
into a dedicated crate.
Furthermore, because the proxy's tests require that
`quickcheck::Aribtrary` be implemented for protobuf types, the
`conduit-proxy-controller-grpc` crate supports an _arbitrary_ feature
fla protobuf types, the `conduit-proxy-controller-grpc` crate supports
an _arbitrary_ feature flag.
While we're moving these libraries around, the `tower-router` crate has
been moved to `proxy/router` and renamed to `conduit-proxy-router.`
`futures-mpsc-lossy` has been moved into the proxy directory but has not
been renamed.
Finally, the `proxy/Dockerfile-deps` image has been updated to avoid the
wasteful building of dependency artifacts, as they are not actually used
by `proxy/Dockerfile`.
The conduit repo includes several library projects that have since been
moved into external repos, including `tower-grpc` and `tower-h2`.
This change removes these vendored libraries in favor of using the new
external crates.
Response End events were only triggered after polling the trailers of
a response, but when the Response is given to a hyper h1 server, it
doesn't know about trailers, so they were never polled!
The fix is that the `BodyStream` glue will now poll the wrapped body for
trailers after it sees the end of the data, before telling hyper the
stream is over. This ensures a ResponseEnd event is emitted.
Includes a proxy telemetry test over h1 connections.
The proxy will now try to detect what protocol new connections are
using, and route them accordingly. Specifically:
- HTTP/2 stays the same.
- HTTP/1 is now accepted, and will try to send an HTTP/1 request
to the target.
- If neither HTTP/1 nor 2, assume a TCP stream and simply forward
between the source and destination.
* tower-h2: fix Server Clone bounds
* proxy: implement Async{Read,Write} extra methods for Connection
Closes#130Closes#131
* Proxy: Use production config parsing in tests
Previosuly the testing code for the proxy was sensitive to the values
of environment variables unintentionally, because `Config` looked at
the environment variables. Also, the tests were largely avoiding
testing the production configuration parsing code since they were
doing their own parsing.
Now the tests avoid looking at environment variables other than
`ENV_LOG`, which makes them more resilient. Also the tests now parse
the settings using the same code as production use uses.
I validated this manually.
We’ve built Conduit from the ground up to be the fastest, lightest,
simplest, and most secure service mesh in the world. It features an
incredibly fast and safe data plane written in Rust, a simple yet
powerful control plane written in Go, and a design that’s focused on
performance, security, and usability. Most importantly, Conduit
incorporates the many lessons we’ve learned from over 18 months of
production service mesh experience with Linkerd.
This repository contains a few tightly-related components:
- `proxy` -- an HTTP/2 proxy written in Rust;
- `controller` -- a control plane written in Go with gRPC;
- `web` -- a UI written in React, served by Go.
Oliver Gould
Eliza Weisman
Sean McArthur
Brian Smith