cargo-lambda-serverless

Serverless plugin for Cargo Lambda

Install

npm i cargo-lambda-serverless --save-dev

Add the plugin to your serverless.yml

plugins:
  - cargo-lambda-serverless

Configure

functions:
  hello:
    handler: bootstrap
    runtime: 'provided.al2'
    cargo:
      path: 'target/lambda/hello/bootstrap'
    package:
      individually: true
      exclude:
        - '**/**'
      include:
        - 'target/lambda/hello/bootstrap'

Cargo.toml

[[bin]]
name = "hello"
path = "src/hello.rs"

For your GitHub Action you need to just build the functions with cargo lambda build --release, the plugin then will pickup those binaries and will package them at the root level, so that when AWS Lambda looks for bootstrap binaries will find your corresponding functions.

- name: Cache cargo registry
  uses: actions/cache@v3
  continue-on-error: false
    with:
      path: |
        ~/.cargo/registry
        ~/.cargo/git
      key: cargo-build-cache

- name: Release lambda
  run: |
     pip install cargo-lambda
     cargo lambda build --release

For the structure of your hello rust function you should follow the documentation of Cargo Lambda