feat: add wasm-rust sdk with say-hello simple extension (alibaba#350)

.gitignore

@@ -13,4 +13,5 @@ bazel-testlogs
 bazel-wasm-cpp
 tools/bin/
 helm/**/charts/**.tgz
+target/
 tools/hack/cluster.conf

plugins/wasm-rust/.dockerignore

@@ -0,0 +1 @@
+target/

plugins/wasm-rust/Cargo.toml

@@ -0,0 +1,12 @@
+[package]
+name = "higress-wasm-rust"
+version = "0.1.0"
+edition = "2021"
+
+# See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
+
+[dependencies]
+proxy-wasm = "0.2.1"
+serde = "1.0"
+serde_json = "1.0"
+uuid = { version = "1.3.3", features = ["v4"] }

plugins/wasm-rust/Dockerfile

@@ -0,0 +1,12 @@
+FROM rust:1.69 as builder
+WORKDIR /workspace
+RUN rustup target add wasm32-wasi
+ARG PLUGIN_NAME="say-hello"
+ARG BUILD_OPTS="--release"
+COPY . .
+WORKDIR /workspace/extensions/$PLUGIN_NAME
+RUN cargo build --target wasm32-wasi $BUILD_OPTS \
+    && cp target/wasm32-wasi/release/*.wasm /main.wasm
+
+FROM scratch
+COPY --from=builder /main.wasm plugin.wasm

plugins/wasm-rust/Makefile

@@ -0,0 +1,16 @@
+PLUGIN_NAME ?= say-hello
+REGISTRY ?= higress-registry.cn-hangzhou.cr.aliyuncs.com/plugins/
+BUILD_TIME := $(shell date "+%Y%m%d-%H%M%S")
+COMMIT_ID := $(shell git rev-parse --short HEAD 2>/dev/null)
+IMAGE_TAG = $(if $(strip $(PLUGIN_VERSION)),${PLUGIN_VERSION},${BUILD_TIME}-${COMMIT_ID})
+IMG ?= ${REGISTRY}${PLUGIN_NAME}:${IMAGE_TAG}
+
+.DEFAULT:
+build:
+	DOCKER_BUILDKIT=1 docker build \
+		--build-arg PLUGIN_NAME=${PLUGIN_NAME} \
+		-t ${IMG} \
+	    --output extensions/${PLUGIN_NAME} \
+	    .
+	@echo ""
+	@echo "output wasm file: extensions/${PLUGIN_NAME}/plugin.wasm"

plugins/wasm-rust/README.md

@@ -0,0 +1,3 @@
+## 介绍
+
+此 SDK 用于使用 Rust 语言开发 Higress 的 Wasm 插件。

plugins/wasm-rust/extensions/say-hello/Cargo.toml

@@ -0,0 +1,15 @@
+[package]
+name = "say-hello"
+version = "0.1.0"
+edition = "2021"
+publish = false
+
+# See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
+[lib]
+crate-type = ["cdylib"]
+
+[dependencies]
+higress-wasm-rust = { path = "../../", version = "0.1.0" }
+proxy-wasm = "0.2.1"
+serde = { version = "1.0", features = ["derive"] }
+serde_json = "1.0"