Istio Wasm Rust Demo

Add new target

rustup update
rustup target add wasm32-unknown-unknown

编译

make build
# or
cargo build --target wasm32-unknown-unknown --release

完成后.wasm文件在target/wasm32-unknown-unknown/release/hello_world.wasm，可以使用 Envoy 或者 Wasme 在本地测试。

启动后访问http://localhost:8080/headers，Header 中有X-Hello:

{
  "headers": {
    "X-Hello": "Hello world from localhost:8080"
  }
}

Envoy

envoy install

envoy --version
envoy  version: d6a4496e712d7a2335b26e2f76210d5904002c26/1.17.1/Modified/DEBUG/BoringSSL

测试

make run
# or
envoy -c ./envoy.yaml --concurrency 1 --log-format '%v'

Wasme

wasme install

wasme --version
wasme version 0.0.33

打包

make wasme.build
# or
wasme build precompiled target/wasm32-unknown-unknown/release/hello_world.wasm --tag webassemblyhub.io/hbchen/hello_world:v0.1

测试

make wasme.deploy
# or
wasme deploy envoy webassemblyhub.io/hbchen/hello_world:v0.1 --envoy-image=istio/proxyv2:1.8.4 --bootstrap=envoy-bootstrap.yml