51 lines
1.2 KiB
Markdown
51 lines
1.2 KiB
Markdown
---
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title: "Serverless Application Model"
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type: concept
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tags:
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- AWS
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- Serverless
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- IaC
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- SAM
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date: 2024-09-03
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---
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## Definition
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Serverless Application Model（无服务器应用模型，SAM）是 AWS 提供的开源框架，用于简化无服务器应用的本地开发和部署。基于 CloudFormation，扩展了声明无服务器资源的简化的语法。
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## Key Features
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- SAM CLI：
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- `sam init`：初始化项目
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- `sam build`：本地构建
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- `sam local`：本地运行和调试
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- `sam deploy`：部署到 AWS
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- 模板简化：相比 CloudFormation 更简洁的语法
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- 本地测试：支持本地调用 Lambda 和 Step Functions
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## SAM Template Structure
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```yaml
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AWSTemplateFormatVersion: '2010-09-09'
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Transform: AWS::Serverless-2016-08-09
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Resources:
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MyFunction:
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Type: AWS::Serverless::Function
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Properties:
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Handler: index.handler
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Runtime: nodejs18.x
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Events:
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Api:
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Type: Api
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Properties:
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Path: /hello
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Method: get
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```
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## Common Use Cases
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- Lambda 函数部署
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- API Gateway 集成
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- Step Functions 工作流
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- 事件驱动架构
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## Aliases
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- AWS SAM
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- SAM
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- Serverless Application Model |