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Support router-scoped caches#2128

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olix0r merged 5 commits intomainfrom
ver/nurt
Jan 6, 2023
Merged

Support router-scoped caches#2128
olix0r merged 5 commits intomainfrom
ver/nurt

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@olix0r olix0r commented Jan 6, 2023

stack::NewRouter reuses its inner stack for all Router instances. This makes it difficult to implement a cache that is scoped just to the router (and not shared across all routers).

This change:

  • Removes the linkerd_stack::router module;
  • Adds the linkerd-router crate;
  • Adds an ahash cache implementation to the router crate with a convenience layer;
  • The RecognizeRoute is now called SelectRoute;
  • Router is now called OneshotRoute;
  • NewOneshotRoute now uses ExtractParam to acquire a SelectRoute;
  • A NewCloneService module is added to support lifting a stack to be shared across routes (i.e. to preserve the prior behavior).

@olix0r olix0r requested a review from a team as a code owner January 6, 2023 07:54
@olix0r
Support router-scoped caches
86bf380 
`stack::NewRouter` reuses its inner stack for all `Router` instances.
This makes it difficult to implement a cache that is scoped just to the
router (and not shared across all routers).

This change:

* Removes the `linkerd_stack::router` module;
* Adds the `linkerd-router` crate;
* Adds an `ahash` cache implementation to the router crate with a
  convenience layer;
* The `RecognizeRoute` is now called `SelectRoute`;
* `Router` is now called `OneshotRoute`;
* `NewOneshotRoute` now uses `ExtractParam` to acquire a `SelectRoute`;
* A `NewCloneService` module is added to support lifting a stack
  to be shared across routes (i.e. to preserve the prior behavior).
olix0r
olix0r commented Jan 6, 2023
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olix0r
olix0r commented Jan 6, 2023
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hawkw
hawkw approved these changes Jan 6, 2023
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Looks great, I commented on a few nits, but no blockers.

Do we want to add the required loadshedding layers in this PR, or is that intended for a follow-up?

linkerd/router/src/cache.rs
fn new_service(&self, key: K) -> Self::Service {
self.services
.lock()
.entry(key.clone())
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could be worth noting in the docs that Cache's NewService impl will always clone the target type, even if there's already a cached service for it...

olix0r added 4 commits January 6, 2023 20:03
@olix0r
Add NewOneshotRoute::layer_via, simplify layer
303059f 
`NewOneshotRoute::layer` now uses the default `()` extractor, requiring
that targets implement `Param<Sel>`. `layer_via` supports the extractor
pattern.
@olix0r
+inline
82e4480
@olix0r
Add loadsheds
6771db4
@olix0r
-todo+loadshed
e5b340d
@olix0r olix0r merged commit 577ad52 into main Jan 6, 2023
@olix0r olix0r deleted the ver/nurt branch January 6, 2023 20:28
olix0r added a commit to linkerd/linkerd2 that referenced this pull request Jan 9, 2023
@olix0r
proxy: v2.189.0
d83d747 
This release updates the outbound proxy to use a queue for each load
balancer, instead of one for each router. This allows us to remove
unnecessary caching and buffering behavior in other places.

Routes are now lazily initialized so that service profile routes will
not show up in metrics until the route is used. Furthermore, a default
route is always available now (i.e. when no service profile exists for a
service).

Furthermore, the proxy's traffic splitting behavior has changed so that
only available concrete services (i.e. those not in failfast) are used.
This lets the proxy manage failover-like use cases without external
coordination.

This release also features an update to Tokio v1.24, which promises to
reduce CPU usage, especially for the proxy's pod-local communication.

---

* Allow Unicode-dfs-2016 for unicode-ident (linkerd/linkerd2-proxy#1973)
* build(deps): bump unicode-ident from 1.0.1 to 1.0.5 (linkerd/linkerd2-proxy#1964)
* build(deps): bump tj-actions/changed-files from 34.3.4 to 34.4.0 (linkerd/linkerd2-proxy#1986)
* build(deps): bump tower-layer from 0.3.1 to 0.3.2 (linkerd/linkerd2-proxy#1987)
* build(deps): bump thiserror from 1.0.34 to 1.0.37 (linkerd/linkerd2-proxy#1988)
* build(deps): bump itoa from 1.0.2 to 1.0.4 (linkerd/linkerd2-proxy#1989)
* build(deps): bump tokio from 1.21.0 to 1.21.2 (linkerd/linkerd2-proxy#1990)
* build(deps): bump regex from 1.6.0 to 1.7.0 (linkerd/linkerd2-proxy#1991)
* build(deps): bump tj-actions/changed-files from 34.4.0 to 34.4.2 (linkerd/linkerd2-proxy#1993)
* build(deps): bump cmake from 0.1.48 to 0.1.49 (linkerd/linkerd2-proxy#1994)
* build(deps): bump libc from 0.2.132 to 0.2.137 (linkerd/linkerd2-proxy#1995)
* build(deps): bump parking_lot_core from 0.9.3 to 0.9.4 (linkerd/linkerd2-proxy#1996)
* build(deps): bump hdrhistogram from 7.5.1 to 7.5.2 (linkerd/linkerd2-proxy#1999)
* build(deps): bump tracing-subscriber from 0.3.15 to 0.3.16 (linkerd/linkerd2-proxy#1998)
* build(deps): bump serde from 1.0.144 to 1.0.147 (linkerd/linkerd2-proxy#1997)
* build(deps): bump EmbarkStudios/cargo-deny-action from 1.3.2 to 1.4.0 (linkerd/linkerd2-proxy#2000)
* build(deps): bump tonic from 0.8.1 to 0.8.2 (linkerd/linkerd2-proxy#2002)
* build(deps): bump rand_core from 0.6.3 to 0.6.4 (linkerd/linkerd2-proxy#2003)
* build(deps): bump derive_arbitrary from 1.1.6 to 1.2.0 (linkerd/linkerd2-proxy#2004)
* build(deps): bump tj-actions/changed-files from 34.4.2 to 34.4.4 (linkerd/linkerd2-proxy#2005)
* build(deps): bump ppv-lite86 from 0.2.16 to 0.2.17 (linkerd/linkerd2-proxy#2006)
* build(deps): bump prost from 0.11.0 to 0.11.2 (linkerd/linkerd2-proxy#2007)
* build(deps): bump async-trait from 0.1.57 to 0.1.58 (linkerd/linkerd2-proxy#2008)
* build(deps): bump getrandom from 0.2.7 to 0.2.8 (linkerd/linkerd2-proxy#2009)
* build(deps): bump base64 from 0.13.0 to 0.13.1 (linkerd/linkerd2-proxy#2010)
* build(deps): bump anyhow from 1.0.65 to 1.0.66 (linkerd/linkerd2-proxy#2011)
* build(deps): bump tj-actions/changed-files from 34.4.4 to 34.5.0 (linkerd/linkerd2-proxy#2012)
* build(deps): bump clang-sys from 1.3.3 to 1.4.0 (linkerd/linkerd2-proxy#2013)
* build(deps): bump ipnet from 2.5.0 to 2.5.1 (linkerd/linkerd2-proxy#2015)
* build(deps): bump prost-types from 0.11.1 to 0.11.2 (linkerd/linkerd2-proxy#2014)
* meshtls-rustls: fix clippy `.ok().expect()` lints in tests (linkerd/linkerd2-proxy#2017)
* build(deps): bump tokio from 1.21.2 to 1.22.0 (linkerd/linkerd2-proxy#2020)
* build(deps): bump prost-build from 0.11.1 to 0.11.3 (linkerd/linkerd2-proxy#2018)
* build(deps): bump futures from 0.3.24 to 0.3.25 (linkerd/linkerd2-proxy#2019)
* build(deps): bump tokio-boring from 2.1.4 to 2.1.5 (linkerd/linkerd2-proxy#2024)
* build(deps): bump DavidAnson/markdownlint-cli2-action (linkerd/linkerd2-proxy#2022)
* build(deps): bump once_cell from 1.14.0 to 1.16.0 (linkerd/linkerd2-proxy#2023)
* build(deps): bump serde from 1.0.147 to 1.0.148 (linkerd/linkerd2-proxy#2025)
* build(deps): bump tracing from 0.1.36 to 0.1.37 (linkerd/linkerd2-proxy#2026)
* build(deps): bump bytes from 1.2.1 to 1.3.0 (linkerd/linkerd2-proxy#2027)
* build(deps): bump mio from 0.8.4 to 0.8.5 (linkerd/linkerd2-proxy#2028)
* build(deps): bump softprops/action-gh-release from 0.1.14 to 0.1.15 (linkerd/linkerd2-proxy#2030)
* build(deps): bump tonic-build from 0.8.2 to 0.8.4 (linkerd/linkerd2-proxy#2031)
* build(deps): bump parking_lot_core from 0.9.4 to 0.9.5 (linkerd/linkerd2-proxy#2032)
* build(deps): bump libloading from 0.7.3 to 0.7.4 (linkerd/linkerd2-proxy#2033)
* build(deps): bump boring from 2.0.0 to 2.1.0 (linkerd/linkerd2-proxy#2036)
* build(deps): bump async-trait from 0.1.58 to 0.1.59 (linkerd/linkerd2-proxy#2037)
* build(deps): bump libc from 0.2.137 to 0.2.138 (linkerd/linkerd2-proxy#2038)
* build(deps): bump tj-actions/changed-files from 34.5.0 to 34.5.1 (linkerd/linkerd2-proxy#2040)
* build(deps): bump indexmap from 1.9.1 to 1.9.2 (linkerd/linkerd2-proxy#2041)
* build(deps): bump aho-corasick from 0.7.19 to 0.7.20 (linkerd/linkerd2-proxy#2042)
* build(deps): bump jemalloc-sys (linkerd/linkerd2-proxy#2043)
* build(deps): bump boring-sys from 2.0.0 to 2.1.0 (linkerd/linkerd2-proxy#1948)
* just: Fix justfile command silencing (linkerd/linkerd2-proxy#2016)
* build(deps): bump regex-syntax from 0.6.27 to 0.6.28 (linkerd/linkerd2-proxy#2044)
* build(deps): bump data-encoding from 2.3.2 to 2.3.3 (linkerd/linkerd2-proxy#2046)
* build(deps): bump tokio-macros from 1.8.0 to 1.8.2 (linkerd/linkerd2-proxy#2047)
* build(deps): bump serde_json from 1.0.85 to 1.0.89 (linkerd/linkerd2-proxy#2045)
* build(deps): bump flate2 from 1.0.24 to 1.0.25 (linkerd/linkerd2-proxy#2051)
* build(deps): bump tonic from 0.8.2 to 0.8.3 (linkerd/linkerd2-proxy#2052)
* dev: v37 (linkerd/linkerd2-proxy#2048)
* build(deps): bump itertools from 0.10.3 to 0.10.5 (linkerd/linkerd2-proxy#2049)
* build(deps): bump syn from 1.0.103 to 1.0.105 (linkerd/linkerd2-proxy#2056)
* build(deps): bump prost from 0.11.2 to 0.11.3 (linkerd/linkerd2-proxy#2055)
* build(deps): bump serde from 1.0.148 to 1.0.149 (linkerd/linkerd2-proxy#2054)
* build(deps): bump cc from 1.0.73 to 1.0.77 (linkerd/linkerd2-proxy#2053)
* build(deps): bump linkerd/dev from 37 to 38 (linkerd/linkerd2-proxy#2058)
* build(deps): bump tj-actions/changed-files from 34.5.1 to 34.5.3 (linkerd/linkerd2-proxy#2059)
* build(deps): bump tokio from 1.22.0 to 1.23.0 (linkerd/linkerd2-proxy#2060)
* build(deps): bump derive_arbitrary from 1.2.0 to 1.2.1 (linkerd/linkerd2-proxy#2061)
* build(deps): bump serde from 1.0.149 to 1.0.150 (linkerd/linkerd2-proxy#2062)
* build(deps): bump prost-build from 0.11.3 to 0.11.4 (linkerd/linkerd2-proxy#2063)
* release: Produce static binaries (linkerd/linkerd2-proxy#2057)
* build(deps): bump ipnet from 2.5.1 to 2.7.0 (linkerd/linkerd2-proxy#2066)
* build(deps): bump tj-actions/changed-files from 34.5.3 to 34.6.1 (linkerd/linkerd2-proxy#2068)
* build(deps): bump cc from 1.0.77 to 1.0.78 (linkerd/linkerd2-proxy#2069)
* build(deps): bump actions/checkout from 3.1.0 to 3.2.0 (linkerd/linkerd2-proxy#2064)
* build(deps): bump unicode-ident from 1.0.5 to 1.0.6 (linkerd/linkerd2-proxy#2072)
* build(deps): bump ryu from 1.0.10 to 1.0.12 (linkerd/linkerd2-proxy#2073)
* build(deps): bump async-trait from 0.1.59 to 0.1.60 (linkerd/linkerd2-proxy#2074)
* build(deps): bump thiserror from 1.0.37 to 1.0.38 (linkerd/linkerd2-proxy#2075)
* build(deps): bump tj-actions/changed-files from 34.6.1 to 35.1.0 (linkerd/linkerd2-proxy#2077)
* build(deps): bump quote from 1.0.20 to 1.0.23 (linkerd/linkerd2-proxy#2081)
* build(deps): bump proc-macro2 from 1.0.47 to 1.0.49 (linkerd/linkerd2-proxy#2082)
* build(deps): bump num_cpus from 1.14.0 to 1.15.0 (linkerd/linkerd2-proxy#2083)
* build(deps): bump itoa from 1.0.4 to 1.0.5 (linkerd/linkerd2-proxy#2084)
* Introduce a 'distribute' stack module (linkerd/linkerd2-proxy#2085)
* outbound: Split the concrete and logical stack builders (linkerd/linkerd2-proxy#2092)
* config: Decouple HTTP and TCP buffering config (linkerd/linkerd2-proxy#2078)
* build(deps): bump syn from 1.0.105 to 1.0.107 (linkerd/linkerd2-proxy#2088)
* build(deps): bump anyhow from 1.0.66 to 1.0.68 (linkerd/linkerd2-proxy#2089)
* build(deps): bump prost from 0.11.3 to 0.11.5 (linkerd/linkerd2-proxy#2090)
* Propagate backpressure from buffers when in failfast (linkerd/linkerd2-proxy#2091)
* Split `outbound::tcp::logical::tests` into a file (linkerd/linkerd2-proxy#2096)
* build(deps): bump prost-types from 0.11.2 to 0.11.5 (linkerd/linkerd2-proxy#2099)
* build(deps): bump libc from 0.2.138 to 0.2.139 (linkerd/linkerd2-proxy#2098)
* build(deps): bump serde from 1.0.150 to 1.0.152 (linkerd/linkerd2-proxy#2097)
* stack: Add `SpawnWatch` middleware (linkerd/linkerd2-proxy#2101)
* build(deps): bump prost-build from 0.11.4 to 0.11.5 (linkerd/linkerd2-proxy#2087)
* build(deps): bump prettyplease from 0.1.21 to 0.1.22 (linkerd/linkerd2-proxy#2104)
* build(deps): bump once_cell from 1.16.0 to 1.17.0 (linkerd/linkerd2-proxy#2105)
* build(deps): bump serde_json from 1.0.89 to 1.0.91 (linkerd/linkerd2-proxy#2106)
* build(deps): bump DavidAnson/markdownlint-cli2-action (linkerd/linkerd2-proxy#2114)
* stack: add `Lazy` middleware (linkerd/linkerd2-proxy#2102)
* build(deps): bump derive_arbitrary from 1.2.1 to 1.2.2 (linkerd/linkerd2-proxy#2116)
* build(deps): bump arbitrary from 1.2.0 to 1.2.2 (linkerd/linkerd2-proxy#2117)
* Rename `linkerd-cache` to `linkerd-idle-cache` (linkerd/linkerd2-proxy#2118)
* Rename Stack::push_cache to push_idle_cache (linkerd/linkerd2-proxy#2119)
* Make all comment delimeters uniform (linkerd/linkerd2-proxy#2120)
* Make NameAddr cheaper to clone (linkerd/linkerd2-proxy#2121)
* build(deps): bump tokio from 1.23.0 to 1.23.1 (linkerd/linkerd2-proxy#2125)
* build(deps): bump tj-actions/changed-files from 35.1.0 to 35.3.1 (linkerd/linkerd2-proxy#2124)
* distribute: Add a backend cache (linkerd/linkerd2-proxy#2122)
* stack: Eliminate the `UpdateWatch` trait (linkerd/linkerd2-proxy#2123)
* Make `Profile::clone` cheaper (linkerd/linkerd2-proxy#2127)
* build(deps): bump actions/download-artifact from 3.0.1 to 3.0.2 (linkerd/linkerd2-proxy#2131)
* build(deps): bump tokio from 1.23.1 to 1.24.0 (linkerd/linkerd2-proxy#2132)
* build(deps): bump prettyplease from 0.1.22 to 0.1.23 (linkerd/linkerd2-proxy#2133)
* Support router-scoped caches (linkerd/linkerd2-proxy#2128)
* stack: Fix `NewSpawnWatch::layer` type signature (linkerd/linkerd2-proxy#2134)
* Implement `Hash` for configuration types (linkerd/linkerd2-proxy#2135)
* outbound: separate TCP logical and concrete stacks (linkerd/linkerd2-proxy#2136)
* build(deps): bump ipnet from 2.7.0 to 2.7.1 (linkerd/linkerd2-proxy#2141)
* build(deps): bump glob from 0.3.0 to 0.3.1 (linkerd/linkerd2-proxy#2140)
* build(deps): bump async-trait from 0.1.60 to 0.1.61 (linkerd/linkerd2-proxy#2138)
* build(deps): bump actions/upload-artifact from 3.1.1 to 3.1.2 (linkerd/linkerd2-proxy#2137)
* Update routers to support per-request backend distributions (linkerd/linkerd2-proxy#2095)
* Disable musl in release build (linkerd/linkerd2-proxy#2143)

Signed-off-by: Oliver Gould <ver@buoyant.io>
olix0r added a commit to linkerd/linkerd2 that referenced this pull request Jan 10, 2023
@olix0r
proxy: v2.189.0 (#10110)
c415abd 
* proxy: v2.189.0

This release updates the outbound proxy to use a queue for each load
balancer, instead of one for each router. This allows us to remove
unnecessary caching and buffering behavior in other places.

Routes are now lazily initialized so that service profile routes will
not show up in metrics until the route is used. Furthermore, a default
route is always available now (i.e. when no service profile exists for a
service).

Furthermore, the proxy's traffic splitting behavior has changed so that
only available concrete services (i.e. those not in failfast) are used.
This lets the proxy manage failover-like use cases without external
coordination.

This release also features an update to Tokio v1.24, which promises to
reduce CPU usage, especially for the proxy's pod-local communication.

---

* Allow Unicode-dfs-2016 for unicode-ident (linkerd/linkerd2-proxy#1973)
* build(deps): bump unicode-ident from 1.0.1 to 1.0.5 (linkerd/linkerd2-proxy#1964)
* build(deps): bump tj-actions/changed-files from 34.3.4 to 34.4.0 (linkerd/linkerd2-proxy#1986)
* build(deps): bump tower-layer from 0.3.1 to 0.3.2 (linkerd/linkerd2-proxy#1987)
* build(deps): bump thiserror from 1.0.34 to 1.0.37 (linkerd/linkerd2-proxy#1988)
* build(deps): bump itoa from 1.0.2 to 1.0.4 (linkerd/linkerd2-proxy#1989)
* build(deps): bump tokio from 1.21.0 to 1.21.2 (linkerd/linkerd2-proxy#1990)
* build(deps): bump regex from 1.6.0 to 1.7.0 (linkerd/linkerd2-proxy#1991)
* build(deps): bump tj-actions/changed-files from 34.4.0 to 34.4.2 (linkerd/linkerd2-proxy#1993)
* build(deps): bump cmake from 0.1.48 to 0.1.49 (linkerd/linkerd2-proxy#1994)
* build(deps): bump libc from 0.2.132 to 0.2.137 (linkerd/linkerd2-proxy#1995)
* build(deps): bump parking_lot_core from 0.9.3 to 0.9.4 (linkerd/linkerd2-proxy#1996)
* build(deps): bump hdrhistogram from 7.5.1 to 7.5.2 (linkerd/linkerd2-proxy#1999)
* build(deps): bump tracing-subscriber from 0.3.15 to 0.3.16 (linkerd/linkerd2-proxy#1998)
* build(deps): bump serde from 1.0.144 to 1.0.147 (linkerd/linkerd2-proxy#1997)
* build(deps): bump EmbarkStudios/cargo-deny-action from 1.3.2 to 1.4.0 (linkerd/linkerd2-proxy#2000)
* build(deps): bump tonic from 0.8.1 to 0.8.2 (linkerd/linkerd2-proxy#2002)
* build(deps): bump rand_core from 0.6.3 to 0.6.4 (linkerd/linkerd2-proxy#2003)
* build(deps): bump derive_arbitrary from 1.1.6 to 1.2.0 (linkerd/linkerd2-proxy#2004)
* build(deps): bump tj-actions/changed-files from 34.4.2 to 34.4.4 (linkerd/linkerd2-proxy#2005)
* build(deps): bump ppv-lite86 from 0.2.16 to 0.2.17 (linkerd/linkerd2-proxy#2006)
* build(deps): bump prost from 0.11.0 to 0.11.2 (linkerd/linkerd2-proxy#2007)
* build(deps): bump async-trait from 0.1.57 to 0.1.58 (linkerd/linkerd2-proxy#2008)
* build(deps): bump getrandom from 0.2.7 to 0.2.8 (linkerd/linkerd2-proxy#2009)
* build(deps): bump base64 from 0.13.0 to 0.13.1 (linkerd/linkerd2-proxy#2010)
* build(deps): bump anyhow from 1.0.65 to 1.0.66 (linkerd/linkerd2-proxy#2011)
* build(deps): bump tj-actions/changed-files from 34.4.4 to 34.5.0 (linkerd/linkerd2-proxy#2012)
* build(deps): bump clang-sys from 1.3.3 to 1.4.0 (linkerd/linkerd2-proxy#2013)
* build(deps): bump ipnet from 2.5.0 to 2.5.1 (linkerd/linkerd2-proxy#2015)
* build(deps): bump prost-types from 0.11.1 to 0.11.2 (linkerd/linkerd2-proxy#2014)
* meshtls-rustls: fix clippy `.ok().expect()` lints in tests (linkerd/linkerd2-proxy#2017)
* build(deps): bump tokio from 1.21.2 to 1.22.0 (linkerd/linkerd2-proxy#2020)
* build(deps): bump prost-build from 0.11.1 to 0.11.3 (linkerd/linkerd2-proxy#2018)
* build(deps): bump futures from 0.3.24 to 0.3.25 (linkerd/linkerd2-proxy#2019)
* build(deps): bump tokio-boring from 2.1.4 to 2.1.5 (linkerd/linkerd2-proxy#2024)
* build(deps): bump DavidAnson/markdownlint-cli2-action (linkerd/linkerd2-proxy#2022)
* build(deps): bump once_cell from 1.14.0 to 1.16.0 (linkerd/linkerd2-proxy#2023)
* build(deps): bump serde from 1.0.147 to 1.0.148 (linkerd/linkerd2-proxy#2025)
* build(deps): bump tracing from 0.1.36 to 0.1.37 (linkerd/linkerd2-proxy#2026)
* build(deps): bump bytes from 1.2.1 to 1.3.0 (linkerd/linkerd2-proxy#2027)
* build(deps): bump mio from 0.8.4 to 0.8.5 (linkerd/linkerd2-proxy#2028)
* build(deps): bump softprops/action-gh-release from 0.1.14 to 0.1.15 (linkerd/linkerd2-proxy#2030)
* build(deps): bump tonic-build from 0.8.2 to 0.8.4 (linkerd/linkerd2-proxy#2031)
* build(deps): bump parking_lot_core from 0.9.4 to 0.9.5 (linkerd/linkerd2-proxy#2032)
* build(deps): bump libloading from 0.7.3 to 0.7.4 (linkerd/linkerd2-proxy#2033)
* build(deps): bump boring from 2.0.0 to 2.1.0 (linkerd/linkerd2-proxy#2036)
* build(deps): bump async-trait from 0.1.58 to 0.1.59 (linkerd/linkerd2-proxy#2037)
* build(deps): bump libc from 0.2.137 to 0.2.138 (linkerd/linkerd2-proxy#2038)
* build(deps): bump tj-actions/changed-files from 34.5.0 to 34.5.1 (linkerd/linkerd2-proxy#2040)
* build(deps): bump indexmap from 1.9.1 to 1.9.2 (linkerd/linkerd2-proxy#2041)
* build(deps): bump aho-corasick from 0.7.19 to 0.7.20 (linkerd/linkerd2-proxy#2042)
* build(deps): bump jemalloc-sys (linkerd/linkerd2-proxy#2043)
* build(deps): bump boring-sys from 2.0.0 to 2.1.0 (linkerd/linkerd2-proxy#1948)
* just: Fix justfile command silencing (linkerd/linkerd2-proxy#2016)
* build(deps): bump regex-syntax from 0.6.27 to 0.6.28 (linkerd/linkerd2-proxy#2044)
* build(deps): bump data-encoding from 2.3.2 to 2.3.3 (linkerd/linkerd2-proxy#2046)
* build(deps): bump tokio-macros from 1.8.0 to 1.8.2 (linkerd/linkerd2-proxy#2047)
* build(deps): bump serde_json from 1.0.85 to 1.0.89 (linkerd/linkerd2-proxy#2045)
* build(deps): bump flate2 from 1.0.24 to 1.0.25 (linkerd/linkerd2-proxy#2051)
* build(deps): bump tonic from 0.8.2 to 0.8.3 (linkerd/linkerd2-proxy#2052)
* dev: v37 (linkerd/linkerd2-proxy#2048)
* build(deps): bump itertools from 0.10.3 to 0.10.5 (linkerd/linkerd2-proxy#2049)
* build(deps): bump syn from 1.0.103 to 1.0.105 (linkerd/linkerd2-proxy#2056)
* build(deps): bump prost from 0.11.2 to 0.11.3 (linkerd/linkerd2-proxy#2055)
* build(deps): bump serde from 1.0.148 to 1.0.149 (linkerd/linkerd2-proxy#2054)
* build(deps): bump cc from 1.0.73 to 1.0.77 (linkerd/linkerd2-proxy#2053)
* build(deps): bump linkerd/dev from 37 to 38 (linkerd/linkerd2-proxy#2058)
* build(deps): bump tj-actions/changed-files from 34.5.1 to 34.5.3 (linkerd/linkerd2-proxy#2059)
* build(deps): bump tokio from 1.22.0 to 1.23.0 (linkerd/linkerd2-proxy#2060)
* build(deps): bump derive_arbitrary from 1.2.0 to 1.2.1 (linkerd/linkerd2-proxy#2061)
* build(deps): bump serde from 1.0.149 to 1.0.150 (linkerd/linkerd2-proxy#2062)
* build(deps): bump prost-build from 0.11.3 to 0.11.4 (linkerd/linkerd2-proxy#2063)
* release: Produce static binaries (linkerd/linkerd2-proxy#2057)
* build(deps): bump ipnet from 2.5.1 to 2.7.0 (linkerd/linkerd2-proxy#2066)
* build(deps): bump tj-actions/changed-files from 34.5.3 to 34.6.1 (linkerd/linkerd2-proxy#2068)
* build(deps): bump cc from 1.0.77 to 1.0.78 (linkerd/linkerd2-proxy#2069)
* build(deps): bump actions/checkout from 3.1.0 to 3.2.0 (linkerd/linkerd2-proxy#2064)
* build(deps): bump unicode-ident from 1.0.5 to 1.0.6 (linkerd/linkerd2-proxy#2072)
* build(deps): bump ryu from 1.0.10 to 1.0.12 (linkerd/linkerd2-proxy#2073)
* build(deps): bump async-trait from 0.1.59 to 0.1.60 (linkerd/linkerd2-proxy#2074)
* build(deps): bump thiserror from 1.0.37 to 1.0.38 (linkerd/linkerd2-proxy#2075)
* build(deps): bump tj-actions/changed-files from 34.6.1 to 35.1.0 (linkerd/linkerd2-proxy#2077)
* build(deps): bump quote from 1.0.20 to 1.0.23 (linkerd/linkerd2-proxy#2081)
* build(deps): bump proc-macro2 from 1.0.47 to 1.0.49 (linkerd/linkerd2-proxy#2082)
* build(deps): bump num_cpus from 1.14.0 to 1.15.0 (linkerd/linkerd2-proxy#2083)
* build(deps): bump itoa from 1.0.4 to 1.0.5 (linkerd/linkerd2-proxy#2084)
* Introduce a 'distribute' stack module (linkerd/linkerd2-proxy#2085)
* outbound: Split the concrete and logical stack builders (linkerd/linkerd2-proxy#2092)
* config: Decouple HTTP and TCP buffering config (linkerd/linkerd2-proxy#2078)
* build(deps): bump syn from 1.0.105 to 1.0.107 (linkerd/linkerd2-proxy#2088)
* build(deps): bump anyhow from 1.0.66 to 1.0.68 (linkerd/linkerd2-proxy#2089)
* build(deps): bump prost from 0.11.3 to 0.11.5 (linkerd/linkerd2-proxy#2090)
* Propagate backpressure from buffers when in failfast (linkerd/linkerd2-proxy#2091)
* Split `outbound::tcp::logical::tests` into a file (linkerd/linkerd2-proxy#2096)
* build(deps): bump prost-types from 0.11.2 to 0.11.5 (linkerd/linkerd2-proxy#2099)
* build(deps): bump libc from 0.2.138 to 0.2.139 (linkerd/linkerd2-proxy#2098)
* build(deps): bump serde from 1.0.150 to 1.0.152 (linkerd/linkerd2-proxy#2097)
* stack: Add `SpawnWatch` middleware (linkerd/linkerd2-proxy#2101)
* build(deps): bump prost-build from 0.11.4 to 0.11.5 (linkerd/linkerd2-proxy#2087)
* build(deps): bump prettyplease from 0.1.21 to 0.1.22 (linkerd/linkerd2-proxy#2104)
* build(deps): bump once_cell from 1.16.0 to 1.17.0 (linkerd/linkerd2-proxy#2105)
* build(deps): bump serde_json from 1.0.89 to 1.0.91 (linkerd/linkerd2-proxy#2106)
* build(deps): bump DavidAnson/markdownlint-cli2-action (linkerd/linkerd2-proxy#2114)
* stack: add `Lazy` middleware (linkerd/linkerd2-proxy#2102)
* build(deps): bump derive_arbitrary from 1.2.1 to 1.2.2 (linkerd/linkerd2-proxy#2116)
* build(deps): bump arbitrary from 1.2.0 to 1.2.2 (linkerd/linkerd2-proxy#2117)
* Rename `linkerd-cache` to `linkerd-idle-cache` (linkerd/linkerd2-proxy#2118)
* Rename Stack::push_cache to push_idle_cache (linkerd/linkerd2-proxy#2119)
* Make all comment delimeters uniform (linkerd/linkerd2-proxy#2120)
* Make NameAddr cheaper to clone (linkerd/linkerd2-proxy#2121)
* build(deps): bump tokio from 1.23.0 to 1.23.1 (linkerd/linkerd2-proxy#2125)
* build(deps): bump tj-actions/changed-files from 35.1.0 to 35.3.1 (linkerd/linkerd2-proxy#2124)
* distribute: Add a backend cache (linkerd/linkerd2-proxy#2122)
* stack: Eliminate the `UpdateWatch` trait (linkerd/linkerd2-proxy#2123)
* Make `Profile::clone` cheaper (linkerd/linkerd2-proxy#2127)
* build(deps): bump actions/download-artifact from 3.0.1 to 3.0.2 (linkerd/linkerd2-proxy#2131)
* build(deps): bump tokio from 1.23.1 to 1.24.0 (linkerd/linkerd2-proxy#2132)
* build(deps): bump prettyplease from 0.1.22 to 0.1.23 (linkerd/linkerd2-proxy#2133)
* Support router-scoped caches (linkerd/linkerd2-proxy#2128)
* stack: Fix `NewSpawnWatch::layer` type signature (linkerd/linkerd2-proxy#2134)
* Implement `Hash` for configuration types (linkerd/linkerd2-proxy#2135)
* outbound: separate TCP logical and concrete stacks (linkerd/linkerd2-proxy#2136)
* build(deps): bump ipnet from 2.7.0 to 2.7.1 (linkerd/linkerd2-proxy#2141)
* build(deps): bump glob from 0.3.0 to 0.3.1 (linkerd/linkerd2-proxy#2140)
* build(deps): bump async-trait from 0.1.60 to 0.1.61 (linkerd/linkerd2-proxy#2138)
* build(deps): bump actions/upload-artifact from 3.1.1 to 3.1.2 (linkerd/linkerd2-proxy#2137)
* Update routers to support per-request backend distributions (linkerd/linkerd2-proxy#2095)
* Disable musl in release build (linkerd/linkerd2-proxy#2143)

* Fix proxy scripts for new artifact format
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@hawkw hawkw hawkw approved these changes

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@olix0r @hawkw