CircleCI部署到AWS EC2

我找不到任何好的和可以理解的CircleCI配置示例来构建和部署到AWS EC2实例。以下是我目前为止的情况:

.circleci/配置.yml

version: 2
jobs:
    build:
        docker:
            - image: circleci/node:10.7
        steps:
            - checkout
            - restore_cache:
                keys:
                    - v1-dependencies-{{ checksum "package.json" }}
                    - v1-dependencies-
            - run:
                name: Install dependencies
                command: npm install
            - save_cache:
                key: v1-dependencies-{{ checksum "package.json" }}
                paths:
                    - node_modules
            - run:
                name: Lint code
                command: npm run lint
            - run:
                name: Build app
                command: npm run build
            - save_cache:
                key: v1-build-{{ .Environment.CIRCLE_BRANCH }}-{{ .Environment.CIRCLE_SHA1 }}
                paths:
                    - .next
    deploy:
        docker:
            - image: circleci/node:10.7
        steps:
            - run:
                name: Deploy production
                command: ?
workflows:
    version: 2
    build_and_deploy:
        jobs:
            - build
            - deploy:
                requires:
                    - build

到目前为止,整个构建步骤工作得很好,这就成功地进入了部署步骤。但是,当正在构建的分支是 master ?