Rust at Sentry

Transcript

1. Rust at Sentry Armin @mitsuhiko Ronacher

2. Hi, I'm Armin ... and I do Open Source, lots

   of Python and SaaS Flask Sentry …

3. … and here is where you can find me twitter.com/@mitsuhiko

   github.com/mitsuhiko lucumr.pocoo.org/

4. 800°C 36° 2' 0.4662" N 118° 15' 38.7792" W 795°C

   789°C 797°C 793°C 805°C 782°C we show you your crashes
5. None
6. None

7. a bit about us chapter 0

8. Open Source Project “sentry”

9. Cloud Hosted “sentry.io”

10. relatively flexible stack postgres, mysql, cassandra, riak, …

11. our general tech stack chapter 1

12. Lots of Python

13. Simple Stack Python RabbitMQ Postgres Riak Redis

14. Conservative Approach to Adding New Systems

15. prefer Internal Modularity over building More Services

16. how does rust fit?

17. why is there Rust? chapter 2

18. a bit of a hobby of mine

19. turned into sentry-cli (command line client to manage organizations /

    build integration)

20. later reused components for Python modules

21. now part of our tech stack

22. how we started chapter 3

23. why we use Rust for sentry-cli

24. $ otool -L which sentry-cli /usr/local/bin/sentry-cli: /System/Library/Frameworks/Security.framework/Versions/A/Security /usr/lib/libiconv.2.dylib /System/Library/Frameworks/CoreFoundation.framework/Versions/A/CoreFoundation /usr/lib/libcurl.4.dylib

    /usr/lib/libz.1.dylib /usr/lib/libSystem.B.dylib

25. $ curl -sL https://sentry.io/get-cli/ | bash $ npm install sentry-cli-binary

26. that and crates.io

27. rejected alternatives go JavaScript (bundled node) C / C++ Python

    / Ruby

28. things that work well serialization / deserialization error handling console

    UX file size

29. from client to server chapter 4

30. None

31. sourcemap parsing

32. reused sentry-cli code for server

33. +20 sec -> < 500ms processing time

34. debug symbols

35. proguard

36. marrying python and rust chapter 5

37. github.com/mitsuhiko/snaek

38. from setuptools import setup, find_packages setup( name='example', version='0.0.1', packages=find_packages(), include_package_data=True,

    zip_safe=False, platforms='any', install_requires=[ 'snaek', ], snaek_rust_modules=[ ('example._native', 'rust/'), ] )

39. build rust library expose rust -> cabi snaek to consume

40. #[repr(C)] pub struct Point { pub x: f32, pub y:

    f32, } #[no_mangle] pub unsafe extern "C" fn example_get_origin() -> Point { Point { x: 0.0, y: 0.0 } }

41. from example._native import lib def get_origin(): point = lib.example_get_origin() return

    (point.x, point.y)

42. things in rust to love chapter 6

43. #[derive(Serialize, Deserialize, Debug, Default)] pub struct Deploy { #[serde(rename="environment")] pub

    env: String, pub name: Option<String>, pub url: Option<String>, #[serde(rename="dateStarted")] pub started: Option<DateTime<UTC>>, #[serde(rename="dateFinished")] pub finished: Option<DateTime<UTC>>, }

44. /// Lists all deploys for a release pub fn list_deploys(&self,

    org: &str, version: &str) -> ApiResult<Vec<Deploy>> { self.get(&format!("/organizations/{}/releases/{}/deploys/", PathArg(org), PathArg(version)))? .convert() }

45. super flexible (de)serialization layer

46. crates we use / built chapter 7

47. if_chain lazy_static error-chain always useful

48. serde serde_derive serde_json serde_yaml for serialization

49. console indicatif dialoguer for pretty console UI ours :)

50. rust-curl openssl-probe HTTP stuff

51. elementtree XML ours :)

52. things we don't like chapter 8

53. compile times :'(

54. things rust needs chapter 9

55. “what not to do” guide

56. incremental compilation

57. higher level C ABI tools

58. Questions?