AWS Lambda 部署 SpringBoot 应用

水深无声 2022-02-04 03:29 619阅读 0赞

# AWS Lambda 部署 SpringBoot 应用 #

## 配置 AWS CLI 和 Severless ##

AWS CLI 和 Serverless 都可以用于部署 Serverless 应用

### 获取密钥 ###

1.  登录 AWS， 在服务中搜索并选择 IAM，之后选择用户，添加用户

![Serverless1][]

1.  输入用户名，选择编程访问

![Serverless2-add-user][]

1.  选择权限-直接附加现有策略，搜索`AdministratorAccess`并选中(有最高权限)

![Serverless3-add-permission][]

1.  选择下一步直到完成，然后保存好密钥(只会出现这一次，否则就只能重新创建)

![Serverless3-save-secret][]

### 安装配置 AWS CLI ###

#### 安装 ####

参考 [AWS 命令行界面][AWS] 安装

*  Win 下载 [https://s3.amazonaws.com/aws-cli/AWSCLI64.msi][https_s3.amazonaws.com_aws-cli_AWSCLI64.msi] 安装
 *  Mac/Linux 执行 `pip install awscli`

#### 配置 AWS CLI ####

aws configure

然后输入刚才的密钥的 Key 和 Secret，Region 可以选择常用的 region，如`us-east-1`

### 安装配置 Severless ###

#### 安装 ####

npm install -g serverless
    
    或 
    
    yarn global add serverless

#### 配置 ####

serverless config credentials --provider aws --key YOUR_KEY --secret YOUR_SECRET

### 安装配置 AWS SAM Local ###

aws-sam-local 是用于本地调试 Serverless 应用的工具

#### 安装 ####

npm install -g aws-sam-local
    
    或
    
    yarn global add aws-sam-local

## 创建 Spring Boot 应用 ##

### 通过 Maven 插件快速生成 ###

mvn archetype:generate \
            -DgroupId=io.github.helloworlde \
            -DartifactId=serverless-spring-boot \
            -Dversion=1.0-SNAPSHOT \
            -DarchetypeGroupId=com.amazonaws.serverless.archetypes \
            -DarchetypeArtifactId=aws-serverless-springboot2-archetype \
            -DarchetypeVersion=1.3.1

*  项目文件

.
    ├── README.md
    ├── build.gradle
    ├── pom.xml
    ├── sam.yaml
    └── src
        ├── assembly
        │   └── bin.xml
        ├── main
        │   ├── java
        │   │   └── io
        │   │       └── github
        │   │           └── helloworlde
        │   │               ├── Application.java
        │   │               ├── StreamLambdaHandler.java
        │   │               └── controller
        │   │                   └── PingController.java
        │   └── resources
        │       └── application.properties
        └── test
            └── java
                └── io
                    └── github
                        └── helloworlde
                            └── StreamLambdaHandlerTest.java

### 手动创建 ###

1.  创建 SpringBoot 应用
2.  修改 build.gradle

buildscript {
        ext {
            springBootVersion = '2.1.1.RELEASE'
        }
        repositories {
            mavenCentral()
        }
        dependencies {
            classpath("org.springframework.boot:spring-boot-gradle-plugin:${springBootVersion}")
        }
    }
    
    
    apply plugin: 'java'
    apply plugin: 'org.springframework.boot'
    apply plugin: 'io.spring.dependency-management'
    
    
    archivesBaseName = 'serverless-spring-boot'
    group = 'io.github.helloworlde'
    version = '0.0.1-SNAPSHOT'
    sourceCompatibility = 1.8
    
    repositories {
        jcenter()
        mavenLocal()
        mavenCentral()
    }
    
    dependencies {
        compile(
                'org.springframework.boot:spring-boot-starter-web',
                'com.amazonaws.serverless:aws-serverless-java-container-spring:[1.0,)',
                'io.symphonia:lambda-logging:1.0.1'
        )
    
        testCompile("junit:junit:4.12")
    }
    
    task buildZip(type: Zip) {
        from compileJava
        from processResources
        into('lib') {
            from(configurations.compileClasspath) {
                exclude 'tomcat-embed-*'
            }
        }
    }
    
    build.dependsOn buildZip

*  添加 PingController.java

package io.github.helloworlde.controller;
    
    
    import org.springframework.web.bind.annotation.*;
    import org.springframework.web.servlet.config.annotation.EnableWebMvc;
    
    import java.util.HashMap;
    import java.util.Map;
    
    
    @RestController
    @EnableWebMvc
    public class PingController { 
        @RequestMapping(path = "/ping", method = RequestMethod.GET)
        public Map<String, String> ping() { 
            Map<String, String> pong = new HashMap<>();
            pong.put("pong", "Hello, World!");
            return pong;
        }
    }

*  添加 StreamLamdbaHandler.java

StreamLamdbaHandler 相当于一个代理层，将访问 Lambda 的流量转发给 SpringBoot应用；handleRequest方法每次请求都会被调用

package io.github.helloworlde;
    
    
    import com.amazonaws.serverless.exceptions.ContainerInitializationException;
    import com.amazonaws.serverless.proxy.model.AwsProxyRequest;
    import com.amazonaws.serverless.proxy.model.AwsProxyResponse;
    import com.amazonaws.serverless.proxy.spring.SpringBootLambdaContainerHandler;
    import com.amazonaws.services.lambda.runtime.Context;
    import com.amazonaws.services.lambda.runtime.RequestStreamHandler;
    
    import java.io.IOException;
    import java.io.InputStream;
    import java.io.OutputStream;
    
    
    public class StreamLambdaHandler implements RequestStreamHandler { 
        private static SpringBootLambdaContainerHandler<AwsProxyRequest, AwsProxyResponse> handler;
        static { 
            try { 
                handler = SpringBootLambdaContainerHandler.getAwsProxyHandler(Application.class);
            } catch (ContainerInitializationException e) { 
                // if we fail here. We re-throw the exception to force another cold start
                e.printStackTrace();
                throw new RuntimeException("Could not initialize Spring Boot application", e);
            }
        }
    
        @Override
        public void handleRequest(InputStream inputStream, OutputStream outputStream, Context context)
                throws IOException { 
            handler.proxyStream(inputStream, outputStream, context);
        }
    }

*  添加 sam.yaml

sam 用于本地测试Serverless 应用，依赖于 Python 和 Docker

需要注意的是，`Resources.ServerlessSpringBootFunction.Properties.CodeUri`这个路径需要根据使用 Gradle 或 Maven 进行修改

AWSTemplateFormatVersion: '2010-09-09'
    Transform: AWS::Serverless-2016-10-31
    Description: AWS Serverless Spring Boot 2 API - io.github.helloworlde::serverless-spring-boot
    Globals:
      Api:
        EndpointConfiguration: REGIONAL
    
    Resources:
      ServerlessSpringBootFunction:
        Type: AWS::Serverless::Function
        Properties:
          Handler: io.github.helloworlde.StreamLambdaHandler::handleRequest
          Runtime: java8
          CodeUri: build/distributions/serverless-spring-boot.zip
          MemorySize: 512
          Policies: AWSLambdaBasicExecutionRole
          Timeout: 30
          Events:
            GetResource:
              Type: Api
              Properties:
                Path: /{ proxy+}
                Method: any
    
    Outputs:
      ServerlessSpringBootApi:
        Description: URL for application
        Value: !Sub 'https://${ServerlessRestApi}.execute-api.${AWS::Region}.amazonaws.com/Prod/ping'
        Export:
          Name: ServerlessSpringBootApi

## 测试 ##

### 编译生成 zip ###

gradle clean build

### 测试应用接口 ###

1.  启动应用
2.  访问 `http://localhost:8080/ping`，应当返回结果：

{ 
      "pong": "Hello, World!"
    }

### 使用 SAM 测试 ###

sam local start-api --template sam.yaml

curl -s http://127.0.0.1:3000/ping

将会看到输出结果：

{ "pong":"Hello, World!"}%

## 部署 ##

### Serverless 部署 ###

*  在项目根路径中添加 serverless.yml 配置

service: spring-boot-serverless
    
    provider:
      name: aws
      runtime: java8
    
    package:
      artifact: build/distributions/serverless-spring-boot.zip
    
    functions:
      springBootServerless:
        handler: io.github.helloworlde.StreamLambdaHandler::handleRequest
        events:
          - http:
              path: /ping
              method: get
        timeout: 30

*  发布

sls deploy

日志：

sls deploy                             
    Serverless: Packaging service...
    Serverless: Uploading CloudFormation file to S3...
    Serverless: Uploading artifacts...
    Serverless: Uploading service serverless-spring-boot.zip file to S3 (12.73 MB)...
    Serverless: Validating template...
    Serverless: Updating Stack...
    Serverless: Checking Stack update progress...
    ..............
    Serverless: Stack update finished...
    Service Information
    service: spring-boot-serverless
    stage: dev
    region: us-east-1
    stack: spring-boot-serverless-dev
    resources: 10
    api keys:
      None
    endpoints:
      GET - https://cmu9z3fmd1.execute-api.us-east-1.amazonaws.com/dev/ping
    functions:
      springBootServerless: spring-boot-serverless-dev-springBootServerless
    layers:
      None

*  访问

访问 [https://cmu9z3fmd1.execute-api.us-east-1.amazonaws.com/dev/ping][https_cmu9z3fmd1.execute-api.us-east-1.amazonaws.com_dev_ping]

{ 
      "pong": "Hello, World!"
    }

### 使用 AWS CLI 发布 ###

#### 上传到 S3 ####

上传到 S3 时需要有一个 Bucket 存在，可以在 AWS 服务-S3 中创建

*  创建 Bucket

aws s3 mb s3://spring-boot-serverless --region us-east-1

*  上传应用

aws cloudformation package --template-file sam.yaml --output-template-file output-sam.yaml --s3-bucket spring-boot-serverless

这个命令执行之后会在项目根目录下生成一个 `output-sam.yaml`

输出

Uploading to e793ef8960075db672fce0a8ac65f03b  13353411 / 13353411.0  (100.00%)
    Successfully packaged artifacts and wrote output template to file output-sam.yaml.
    Execute the following command to deploy the packaged template
    aws cloudformation deploy --template-file /Users/HelloWood/Dev/Projects/Serverless/serverless-spring-boot/output-sam.yaml --stack-name spring-boot-serverless

#### 部署 ####

aws cloudformation deploy --template-file /Users/HelloWood/Dev/Projects/Serverless/serverless-spring-boot/output-sam.yaml --stack-name spring-boot-serverless-demo --capabilities CAPABILITY_IAM

需要注意的是 `--capabilities CAPABILITY_IAM`会创建一个新的角色，会使用 `AWSLambdaBasicExecutionRole`，该策略仅允许该角色访问 Lambda 相关的资源，也可以使用 `CAPABILITY_AUTO_EXPAND`或`CAPABILITY_NAMED_IAM`使用已有的角色；创建后的角色可以在 AWS IAM 的角色下面管理

#### 测试 ####

*  获取应用信息

aws cloudformation describe-stacks --stack-name spring-boot-serverless-demo

{ 
        "Stacks": [
            { 
                "StackId": "arn:aws:cloudformation:us-east-1:266545579784:stack/spring-boot-serverless-demo/1074b6a0-6f97-11e9-835b-0e348661d726",
                "StackName": "spring-boot-serverless-demo",
                "ChangeSetId": "arn:aws:cloudformation:us-east-1:266545579784:changeSet/awscli-cloudformation-package-deploy-1557103210/fe06fc3b-a353-4d42-814a-4e4f736a2026",
                "Description": "AWS Serverless Spring Boot 2 API - io.github.helloworlde::serverless-spring-boot",
                "CreationTime": "2019-05-06T00:37:01.857Z",
                "LastUpdatedTime": "2019-05-06T00:40:17.502Z",
                "RollbackConfiguration": { },
                "StackStatus": "CREATE_COMPLETE",
                "DisableRollback": false,
                "NotificationARNs": [],
                "Capabilities": [
                    "CAPABILITY_IAM"
                ],
                "Outputs": [
                    { 
                        "OutputKey": "ServerlessSpringBootApi",
                        "OutputValue": "https://gf2c9fhhql.execute-api.us-east-1.amazonaws.com/Prod/ping",
                        "Description": "URL for application",
                        "ExportName": "ServerlessSpringBootApi"
                    }
                ],
                "Tags": [],
                "EnableTerminationProtection": false,
                "DriftInformation": { 
                    "StackDriftStatus": "NOT_CHECKED"
                }
            }
        ]
    }

*  访问 OutputValue 的 URL

curl https://gf2c9fhhql.execute-api.us-east-1.amazonaws.com/Prod/ping

{ "pong":"Hello, World!"}%

### 页面手动部署 ###

#### 创建函数 ####

*  选择服务 - Lambda - 函数 - 创建函数 - 从头开始创作

权限可以选择现有的角色或者新建角色  
![Serverless7-create-on-panel][]

*  添加触发器，选择 API-Gateway 作为触发器，然后保存

![Serverless8-gateway-trigger][]

*  点击Layers 的 Spring 应用，上传 zip，在 `build/`或`target/`下；运行语言选择 Java8，处理程序为`io.github.helloworlde.StreamLambdaHandler::handleRequest`，点击保存

![Serverless9-upload-app][]

#### 测试 ####

*  选择配置测试事件 - 创建新测试事件 - 选择 `AWS API Gateway AWS Proxy`，修改相关的path和httpMethod

![Serverless10-api-gateway-test][]

![Serverless11-test-result][]

*  Gateway 的 URL 可以点击 API Gateway查看

--------------------

### 项目地址 ###

[https://github.com/helloworlde/serverless-spring-boot][https_github.com_helloworlde_serverless-spring-boot]

### 参考文章 ###

*  [A complete guide for running Spring Boot MVC in the cloud using AWS Lambda][]
 *  [使用 Java 构建 Lambda 函数][Java _ Lambda]
 *  [Installing the AWS SAM CLI on macOS][]
 *  [Installing the AWS SAM CLI][]
 *  [Key Tasks for the AWS Toolkit for JetBrains][]
 *  [如何看待 AWS Lambda][AWS Lambda]
 *  [aws-serverless-java-container][]
 *  [Quick start Spring Boot][aws-serverless-java-container]

[Serverless1]: /images/20220204/3eaa3ab512574f83b67b1934d3e6211b.png
[Serverless2-add-user]: /images/20220204/fb0c4e7e04614532a0cd0dce65241f63.png
[Serverless3-add-permission]: /images/20220204/b8dc74314a1247908bcf0f811066f249.png
[Serverless3-save-secret]: /images/20220204/06bb219d85274e64a3eda7b1ca8c79b0.png
[AWS]: https://aws.amazon.com/cn/cli/
[https_s3.amazonaws.com_aws-cli_AWSCLI64.msi]: https://s3.amazonaws.com/aws-cli/AWSCLI64.msi
[https_cmu9z3fmd1.execute-api.us-east-1.amazonaws.com_dev_ping]: https://cmu9z3fmd1.execute-api.us-east-1.amazonaws.com/dev/ping
[Serverless7-create-on-panel]: /images/20220204/989eea58842c40ecbce5da87810574de.png
[Serverless8-gateway-trigger]: /images/20220204/cca468cc387b4204b7d64e894bf788ba.png
[Serverless9-upload-app]: /images/20220204/e487b1ea850b424b98e1e5d4901d93e8.png
[Serverless10-api-gateway-test]: /images/20220204/82918c22de3141ab8b9c6d30027e95b6.png
[Serverless11-test-result]: /images/20220204/868817190bc44f3bbeccc23e9355d8e1.png
[https_github.com_helloworlde_serverless-spring-boot]: https://github.com/helloworlde/serverless-spring-boot
[A complete guide for running Spring Boot MVC in the cloud using AWS Lambda]: https://skryvets.com/blog/2018/06/02/spring-boot-aws-lambda-guide/
[Java _ Lambda]: https://docs.aws.amazon.com/zh_cn/lambda/latest/dg/java-programming-model.html
[Installing the AWS SAM CLI on macOS]: https://docs.aws.amazon.com/zh_cn/serverless-application-model/latest/developerguide/serverless-sam-cli-install-mac.html
[Installing the AWS SAM CLI]: https://docs.aws.amazon.com/zh_cn/serverless-application-model/latest/developerguide/serverless-sam-cli-install.html
[Key Tasks for the AWS Toolkit for JetBrains]: https://docs.aws.amazon.com/zh_cn/toolkit-for-jetbrains/latest/userguide/key-tasks.html#key-tasks-install
[AWS Lambda]: https://www.zhihu.com/question/29490143
[aws-serverless-java-container]: https://github.com/awslabs/aws-serverless-java-container