51b452ecc5
- document exact-version import resolution and deny-by-default behavior - clarify that Component imports remain the capability source of truth - describe structured capability metadata returned by the Console API
71 lines
2.0 KiB
Markdown
71 lines
2.0 KiB
Markdown
# Wasmeld
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Wasmeld 是面向 WebAssembly Component 的服务运行与管理平台。内部服务编译为
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Component,在受限 Wasmtime Sandbox 中以常驻 Actor 运行,并通过稳定 WIT 契约
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暴露能力。
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Runtime 内置版本化 Host Capability Registry。注册 Component 时会直接读取其 WIT
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imports,只链接实际请求且版本完全匹配的 Host 能力;未知能力会被拒绝。能力不需要在
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`.wasmpkg` 中重复声明,管理面会展示每个服务版本解析出的完整接口标识。
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## 结构
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```text
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crates/wasmeld-runtime Component Runtime 与 Sandbox
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crates/wasmeld-console 管理 API 与持久化
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crates/wasmeld-package wasmeld CLI、组件包与 WIT 依赖管理
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components/ 示例 Component
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console/ TanStack Start 管理面
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wit/ Wasmeld WIT package 源码
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```
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## 启动
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后端:
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```bash
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cargo +stable run -p wasmeld-console
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```
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后端会启动本地管理 API `127.0.0.1:8080` 和公开数据面
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`0.0.0.0:8081`。注册 Component 后,通过管理 API 激活一个版本:
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```bash
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curl -X POST http://127.0.0.1:8080/api/v1/deployments/echo/activate \
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-H 'Content-Type: application/json' \
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-d '{"revision":"0.1.0"}'
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```
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客户端只访问 Gateway,并以原始二进制请求调用活动版本:
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```bash
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curl http://127.0.0.1:8081/v1/services/echo/invoke \
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-H 'Content-Type: application/octet-stream' \
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--data-binary 'hello'
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```
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管理面:
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```bash
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cd console
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npm run dev
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```
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构建组件:
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```bash
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cargo run -p wasmeld-package --bin wasmeld -- \
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pack components/echo/Cargo.toml --locked
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```
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发布 WIT Package:
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```bash
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cargo run -p wasmeld-package --bin wasmeld -- \
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wit publish wit/service --registry http://127.0.0.1:8080
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```
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组件在 `wasmeld.toml` 中声明 Registry 和精确版本依赖,`wasmeld wit fetch` 会递归
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解析依赖、生成 `wit/deps`,并将完整解析结果记录在 `wit.lock`。本地开发可使用
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`[replace]` 临时覆盖 Registry 来源。
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