feature: support WebAssembly in apisix.

[apache]

feature: support WebAssembly in apisix.

[syrusakbary]

Personally I prefer to wasmtime. It has an active development and is backed by big company.

Although Wasmer as a company is not as big as Fastly, the community using us is probably the biggest!
As an example of community usage, Google just integrated us into Dart lang: https://medium.com/dartlang/experimenting-with-dart-and-wasm-ef7f1c065577

We would love to help on this if you end choosing Wasmer! 😊

[spacewander]

Totally agree.

1. Personally I prefer to wasmtime. It has an active development and is backed by big company.
2. Yes, our proxy-wasm-host would be an Nginx module called wasm-nginx-module.

[Miss-you]

I think the most important thing about serverless is the Devops or the NoOps and the variety of runtimes. This includes a series of processes about development, testing, operation and maintenance, and release. What't more, the serverless must solve problems such as accelerated cold start, automatic scale-in and scale-out, etc.This is not the responsibility of the gateway. The gateway currently plays more of a proxy, multiple different traffic diversion policies, and full-link tracking in serverless.
So the priority of this requirement is not high or even a pseudo-demand.

[Xunzhuo]

@membphis If we want to achieve this in 'APISIX' ,there are couple of things to do first:

1. choose at least one wasm runtime (V8, WAVM, wasmer...)
2. set rules and impl proxy-wasm-host in apisix followed by webassembly spec
3. impl couple of languages proxy-wasm-sdk

[membphis]

@spacewander what do you think about the message of @Xunzhuo?

@Xunzhuo if you would like to join this job, please let me know. my email: [email protected]

[juzhiyuan]

@Baoyuantop maybe you could also have a try by implementing plugins by Rust?

[Baoyuantop]

@Baoyuantop maybe you could also have a try by implementing plugins by Rust?

Yes I am trying the Rust plugin runner. Maybe I can combine wasmtime to try.

[Xunzhuo]

For point 3: impl couple of languages proxy-wasm-sdk, I think C++ and Rust are both ideal lang for Webassmebly impl.
If we want to interact with APISIX, I think we should impl abi spec in sdk with export , and impl sdk in wasm module. In VM context, VM will read implements of wasm module and interact with proxy-wasm-host(wasm-nginx-module).
@membphis I`m interested in this, but I want to know if apisix is starting to work on wasm supporting. If it is on , which steps do we reach?

[membphis]

@Xunzhuo You can have a more in-depth conversation with @spacewander
I am not familiar with WASM

[membphis]

@syrusakbary Thank you very much for your kindness.

Everyone is welcome to discuss, what one do you prefer? ^_^

[moonming]

Wasmer is great, we can use it in APISIX

[moonming]

I am not familiar with wasmer, how should we integrate it?