chore(app/inbound): address `server::conn::Http` deprecations #3432

cratelyn · 2024-12-06T23:25:18Z

this addresses hyper 1.0 deprecations in the server side of the inbound
proxy's http unit test suite logic.

see linkerd/linkerd2#8733 for more
information.

the client end of this change ends up being slightly involved, due to
changes that will need to be made in linkerd_app_test::http_util.
accordingly, those deprecations will be addressed in a subsequent
commit.

this was not being flagged as an unused variable, due to the `#[instrument]` attribute. (😉 _it's used as a field in the generated span!_) `connect_timeout(..)` doesn't use its parameter. to address some deprecations, and avoid the need for polymorphism / refactoring related to http/1 and http/2 connections being represented as distinct types in the hyper 1.0 api, we remove it. Signed-off-by: katelyn martin <[email protected]>

this addresses hyper 1.0 deprecations in the server side of the inbound proxy's http unit test suite logic. see <linkerd/linkerd2#8733> for more information. the client end of this change ends up being slightly involved, due to changes that will need to be made in `linkerd_app_test::http_util`. accordingly, those deprecations will be addressed in a subsequent commit. Signed-off-by: katelyn martin <[email protected]>

cratelyn · 2024-12-06T23:28:43Z

linkerd/app/inbound/src/http/tests.rs

-#[allow(deprecated)] // linkerd/linkerd2#8733
-fn connect_timeout(
-    http: hyper::server::conn::Http,
-) -> Box<dyn FnMut(Remote<ServerAddr>) -> ConnectFuture + Send> {
+fn connect_timeout() -> Box<dyn FnMut(Remote<ServerAddr>) -> ConnectFuture + Send> {


like #3421, this is another exercise in dodging deprecation work by... removing things! 🙂

cratelyn · 2024-12-06T23:29:25Z

linkerd/app/inbound/src/http/tests.rs

-    http: hyper::server::conn::Http,
+    server: hyper::server::conn::http1::Builder,


cratelyn · 2024-12-06T23:30:41Z

linkerd/app/inbound/src/http/tests.rs

-    http: hyper::server::conn::Http,
+    server: hyper::server::conn::http2::Builder<TracingExecutor>,


...and this, are the other core of this branch. we can tweak these types, without having to do any additional refactoring.

i'm punting the client end of this change into a separate branch, as mentioned in the description, because we currently share common helper functions for the http/1 and http/2 clients.

cratelyn · 2024-12-06T23:54:57Z

auto-merge enabled! 🤖

this commit changes the `connect_and_accept(..)` helper function used in the proxy's unit tests, altering its logic such that it now runs background tasks inside of a `JoinSet`. then, subsequent commits hoist code out of `run_proxy()` and `connect_client()`, and consolidate our `async move {}` blocks. this both simplifies the control flow of this test infrastructure, but also addresses some more hyper deprecations. for more information about our progressing upgrade to hyper 1.0, see linkerd/linkerd2#8733. NB: this branch is based upon #3432. --- * refactor(app/inbound): remove unused `Http` parameter this was not being flagged as an unused variable, due to the `#[instrument]` attribute. (😉 _it's used as a field in the generated span!_) `connect_timeout(..)` doesn't use its parameter. to address some deprecations, and avoid the need for polymorphism / refactoring related to http/1 and http/2 connections being represented as distinct types in the hyper 1.0 api, we remove it. Signed-off-by: katelyn martin <[email protected]> * chore(app/inbound): address `server::conn::Http` deprecations this addresses hyper 1.0 deprecations in the server side of the inbound proxy's http unit test suite logic. see <linkerd/linkerd2#8733> for more information. the client end of this change ends up being slightly involved, due to changes that will need to be made in `linkerd_app_test::http_util`. accordingly, those deprecations will be addressed in a subsequent commit. Signed-off-by: katelyn martin <[email protected]> * refactor(app/test): reorder and document test helpers this moves the public `connect_client(..)` function up to the top of the group of functions, and adds a documentation comment explaining its purpose. a todo comment is left noting that this can be refactored to use tokio's new `JoinSet` type. Signed-off-by: katelyn martin <[email protected]> * refactor(app/test): briefly defer `spawn()`ing tasks this is a small tweak, defering the call to `tokio::spawn(..)` to make using `JoinSet` easier. Signed-off-by: katelyn martin <[email protected]> * refactor(app/test): use `JoinSet` for background tasks this commit changes the `connect_and_accept(..)` helper function used in the proxy's unit tests, altering its logic such that it now runs background tasks inside of a `JoinSet`. Signed-off-by: katelyn martin <[email protected]> * refactor(app/test): tweak proxy process this commit makes two minor changes to the `run_proxy()` helper function: * remove a frivolous `.map(|_| ())` on a result that already had a tuple `Ok` type. * use `ServiceExt::oneshot` for brevity. this should have no effect on the tests, we're just golfing things down a bit. Signed-off-by: katelyn martin <[email protected]> * refactor(app/test): hoist `instrument(..)` calls Signed-off-by: katelyn martin <[email protected]> * refactor(app/test): remove `run_proxy(..)` we've nudged this along well enough that this function can now reasonably be removed. Signed-off-by: katelyn martin <[email protected]> * refactor(app/test): remove `connect_client(..)` and once more, we remove a helper function that isn't doing quite so much work, and whose signature contains deprecated hyper 1.0 types. Signed-off-by: katelyn martin <[email protected]> * refactor(app/test): consolidate anonymous futures we create `async move {}` blocks in multiple places, without any clear benefit. this commit consolidates them into one place: when we spawn a task onto the `JoinSet`. Signed-off-by: katelyn martin <[email protected]> --------- Signed-off-by: katelyn martin <[email protected]>

note: this commit will not compile, code changes are intentionally elided from this commit. this commit upgrades hyper, http, tonic, prost, related dependencies, and their assorted cargo features. see <linkerd/linkerd2#8733>. see also: * #3379 * #3380 * #3382 * #3405 * hyperium/hyper#3796 * #3411 * #3421 * #3427 * #3428 * #3432 * #3433 * #3444 * #3445 * #3454 * #3455 * #3456 * #3457 * #3461 * #3459 * #3465 * #3466 * #3467 * #3468 * linkerd/linkerd2-proxy-api#421 * linkerd/linkerd2#13492 * linkerd/linkerd2#13493 * hyperium/hyper#3816 * #3472 * #3473 * #3479 * tokio-rs/tokio#7059 * #3509 * hyperium/http-body#140 * #3515 * hyperium/http-body#141 * #3530 * #3531 * #3540 * #3556 * #3558 * #3559 * #3564 * #3567 * #3573 * #3583 * hyperium/http-body#144 * #3585 * #3586 * #3597 * #3598 * #3611 * #3614 * #3615 * #3616 * #3647 * #3651 * #3653 * #3654 * #3655 * #3656 * #3657 * #3660 * #3671 * #3672 * #3673 * #3676 * hyperium/http-body#147 * #3692 * #3699 * #3700 * #3701 * #3708 * linkerd/drain-rs#36 * #3715 * #3717 * eminence/procfs#340 --- squash: chore(deps): add hyper-util workspace dependency chore(deps): add http-body-util workspace dependency chore(deps): upgrade linkerd2-proxy-api this commit represents main as of linkerd/linkerd2-proxy-api#421. Signed-off-by: katelyn martin <[email protected]>

## ✨ chore(deps): upgrade to hyperium 1.x crates this branch performs an exciting upgrade for our proxy. this branch upgrades a number of our dependencies so that we use the 1.0 release family of the `hyper` http framework, and its ecosystem. see the [v1.0 announcement][hyper-v1] for more information. this branch upgrades the following dependencies: * `h2`: 0.3 -> 0.4 * `http`: 0.2 -> 1 * `http-body`: 0.4 -> 1 * `hyper`: 0.14.32 -> 1 * `prost`: 0.12 -> 0.13 * `prost-build`: 0.12 -> 0.13 * `prost-types`: 0.12 -> 0.13 * `tonic`: 0.10 -> 0.12 * `tonic-build`: 0.10 -> 0.12 a `hyper-util` dependency is added, which provides among other things, legacy-compatible interfaces such as `hyper_util::client::legacy::Client`, or glue to use `hyper` with the tokio runtime. see <https://docs.rs/hyper-util/latest/hyper_util/> for more information. a `http-body-util` dependency is added, which provides a `BodyExt` trait and a channel-backed body for use in unit tests. the `deprecated` feature flag that was active on our `0.14` hyper dependency has been removed, along with the `stream` and `runtime` feature flags. the `linkerd2-proxy-api` dependency is updated. see: <linkerd/linkerd2-proxy-api#421> ### 📝 notes for review bear particular attention to changes involving `http_body::Body` middleware. the change from two separate `poll_data()` and `poll_trailers()` functions, to a single `poll_frame()` method, induces some subtle changes to various pieces of middleware. also bear in mind that failing to set a timer, in our case `hyper_util::rt::TokioTimer`, can cause http/2 clients, or http/1 and http/2 servers, to panic. make sure that any uses of `hyper::server::conn::http1::Builder`, `hyper::client::conn::http1::Builder`, or `hyper::client::conn::http2::Builder` install a timer. ### ❗ breaking change: `l5d-proxy-error` values the `l5d-proxy-error` header can be examined to observe the cause of proxy errors encountered when sending meshed traffic. by virtue of this using a newer `hyper` client in the proxy, some error messages may in turn look different. for example, an error like `"connect timed out after 1s"` may now appear as `"client error (Connect)"`. ### 📚 other notes this work, by virtue of touching so many parts of the system, is carried out in distinct commits. an initial commit upgrades the dependencies at th workspace level. subsequent commits will not compile if the `--workspace` flag is provided, but the intent of this branch is to update each crate individually. use commands like, e.g. `cargo check --tests -p linkerd-proxy-http` to build particular crates at intermediate commits within this branch. this commit is also only the final leaf in an _extended_ line of work. this has been done to mitigate the effort of reviewing this change, and the risk of churn in the event of any unanticipated errors. see the top-level comment in linkerd/linkerd2#8733 for an overview of all of the work that brought us to this juncture. [hyper-v1]: https://seanmonstar.com/blog/hyper-v1/ --- * chore(deps): upgrade to hyper 1.x note: this commit will not compile, code changes are intentionally elided from this commit. this commit upgrades hyper, http, tonic, prost, related dependencies, and their assorted cargo features. see <linkerd/linkerd2#8733>. see also: * #3379 * #3380 * #3382 * #3405 * hyperium/hyper#3796 * #3411 * #3421 * #3427 * #3428 * #3432 * #3433 * #3444 * #3445 * #3454 * #3455 * #3456 * #3457 * #3461 * #3459 * #3465 * #3466 * #3467 * #3468 * linkerd/linkerd2-proxy-api#421 * linkerd/linkerd2#13492 * linkerd/linkerd2#13493 * hyperium/hyper#3816 * #3472 * #3473 * #3479 * tokio-rs/tokio#7059 * #3509 * hyperium/http-body#140 * #3515 * hyperium/http-body#141 * #3530 * #3531 * #3540 * #3556 * #3558 * #3559 * #3564 * #3567 * #3573 * #3583 * hyperium/http-body#144 * #3585 * #3586 * #3597 * #3598 * #3611 * #3614 * #3615 * #3616 * #3647 * #3651 * #3653 * #3654 * #3655 * #3656 * #3657 * #3660 * #3671 * #3672 * #3673 * #3676 * hyperium/http-body#147 * #3692 * #3699 * #3700 * #3701 * #3708 * linkerd/drain-rs#36 * #3715 * #3717 * eminence/procfs#340 --- squash: chore(deps): add hyper-util workspace dependency chore(deps): add http-body-util workspace dependency chore(deps): upgrade linkerd2-proxy-api this commit represents main as of linkerd/linkerd2-proxy-api#421. Signed-off-by: katelyn martin <[email protected]> * chore(http/box): upgrade to hyper 1.x Signed-off-by: katelyn martin <[email protected]> * chore(hyper-balance): upgrade to hyper 1.x Signed-off-by: katelyn martin <[email protected]> * chore(http/retain): ugrade to hyper 1.x Signed-off-by: katelyn martin <[email protected]> * chore(http/stream-timeouts): upgrade to hyper 1.x Signed-off-by: katelyn martin <[email protected]> * chore(http/classify): upgrade to hyper 1.x Signed-off-by: katelyn martin <[email protected]> * chore(http/upgrade): upgrade to hyper 1.x NOTE: there is a comment noting that the upgrade middleware does not expect to be cloneable. it is unfortunately, however, at odds with the new bounds expected of extensions. so, `Http11Upgrade` is now Clone'able, but a comment is left in place noting this weakened invariant. it's worth investigating how upgrades have changed since, in more detail, but for the current moment we are interested in being especially conservative about changing behavior, and focusing on api changes like `Body::poll_frame(..)`. Signed-off-by: katelyn martin <[email protected]> * chore(metrics): upgrade to hyper 1.x a brief note; this commit happened to tickle an unfortunate sharp edge in `BoxBody` and `Full`'s respective constructors. type inference could not figure out how to construct the body, so we refrain from boxing the response body now. Signed-off-by: katelyn martin <[email protected]> * chore(http/metrics): upgrade to hyper 1.x Signed-off-by: katelyn martin <[email protected]> * chore(http/prom): upgrade to hyper 1.x Signed-off-by: katelyn martin <[email protected]> * chore(http/insert): upgrade to hyper 1.x Signed-off-by: katelyn martin <[email protected]> * chore(http/retry): deprecate linkerd-http-body-compat Signed-off-by: katelyn martin <[email protected]> * chore(mock/http-body): upgrade to hyper 1.x Signed-off-by: katelyn martin <[email protected]> * chore(http/retry): upgrade to hyper 1.x Signed-off-by: katelyn martin <[email protected]> * chore(proxy/tap): upgrade to hyper 1.x Signed-off-by: katelyn martin <[email protected]> * chore(proxy/http): update to hyper 1.x Signed-off-by: katelyn martin <[email protected]> * chore(app/core): upgrade to hyper 1.x Signed-off-by: katelyn martin <[email protected]> * chore(app/test): upgrade to hyper 1.x Signed-off-by: katelyn martin <[email protected]> * chore(app/admin): upgrade to hyper 1.x Signed-off-by: katelyn martin <[email protected]> * chore(app/outbound): upgrade to hyper 1.x Signed-off-by: katelyn martin <[email protected]> * chore(app/inbound): upgrade to hyper 1.x Signed-off-by: katelyn martin <[email protected]> * chore(app/integration): upgrade to hyper 1.x Signed-off-by: katelyn martin <[email protected]> * chore(app): upgrade to hyper 1.x Signed-off-by: katelyn martin <[email protected]> * chore(transport-header): update generated code Signed-off-by: katelyn martin <[email protected]> * chore(spiffe-proto): update generated code Signed-off-by: katelyn martin <[email protected]> * chore(opencensus-proto): update generated code Signed-off-by: katelyn martin <[email protected]> * chore(opentelemetry-proto): update generated code Signed-off-by: katelyn martin <[email protected]> * chore(deny.toml): update cargo-deny directives this commit updates the contents of `deny.toml`. Signed-off-by: katelyn martin <[email protected]> * chore: `compile` has been renamed to `compile_protos` this addresses deprecation warnings, updating calls to a function that has since been renamed. Signed-off-by: katelyn martin <[email protected]> * chore(deps): remove `linkerd-http-body-compat` dependencies this commit removes this crate, which we added to future proof code for this upgrade, from its dependents. Signed-off-by: katelyn martin <[email protected]> * chore(http/body-compat): remove `linkerd-http-body-compat` crate Signed-off-by: katelyn martin <[email protected]> * chore(deps): update to drain 0.2.1 see linkerd/drain-rs#41. Signed-off-by: katelyn martin <[email protected]> --------- Signed-off-by: katelyn martin <[email protected]>

cratelyn added 2 commits December 6, 2024 18:01

cratelyn commented Dec 6, 2024

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cratelyn marked this pull request as ready for review December 6, 2024 23:54

cratelyn requested a review from a team as a code owner December 6, 2024 23:54

cratelyn enabled auto-merge (squash) December 6, 2024 23:54

cratelyn mentioned this pull request Dec 7, 2024

refactor(app/test): address hyper deprecations in test helpers #3433

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olix0r approved these changes Dec 9, 2024

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cratelyn merged commit 54407b9 into main Dec 9, 2024
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cratelyn deleted the kate/hyper-1.x-app-inbound-test-updates.part-1 branch December 9, 2024 16:55

cratelyn mentioned this pull request Dec 11, 2024

proxy: Figure out the plan for Hyper 1.0 migration linkerd/linkerd2#8733

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chore(app/inbound): address `server::conn::Http` deprecations #3432

chore(app/inbound): address `server::conn::Http` deprecations #3432

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cratelyn commented Dec 6, 2024

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		http: hyper::server::conn::Http,
		server: hyper::server::conn::http1::Builder,

		http: hyper::server::conn::Http,
		server: hyper::server::conn::http2::Builder<TracingExecutor>,

chore(app/inbound): address server::conn::Http deprecations #3432

chore(app/inbound): address server::conn::Http deprecations #3432

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chore(app/inbound): address `server::conn::Http` deprecations #3432

chore(app/inbound): address `server::conn::Http` deprecations #3432