[英]Deploying a python package to AWS Lambda via Cloudformation, CodeBuild and CodePipeline
我想為我的AWS基礎架構和AWS Lambda函數設置CI / CD管道。 我們的想法是將所有內容都包含在代碼,版本控制和自動化中。 我只想把git push
送到存儲庫並讓CodePipeline從那里接管,更新我的基礎設施,運行測試,如果成功,用最新的代碼更新我的Lambda函數。
我將CloudFormation模板基於這個優秀的例子 。 它看起來像這樣:
AWSTemplateFormatVersion: 2010-09-09
Description: playground pipeline 1
Parameters:
SourceRepositoryName:
Type: String
Default: lambda-playground
SourceBranchName:
Type: String
Default: master
Resources:
ArtifactsBucket:
Type: AWS::S3::Bucket
DependsOn: CloudFormationRole
DeletionPolicy: Delete
Properties:
BucketName: lambda-playground-artifacts
CodeBuildRole:
Type: AWS::IAM::Role
DependsOn: CloudFormationRole
Properties:
AssumeRolePolicyDocument:
Version: 2012-10-17
Statement:
- Effect: Allow
Action:
- sts:AssumeRole
Principal:
Service:
- codebuild.amazonaws.com
Policies:
- PolicyName: ServiceRole
PolicyDocument:
Version: 2012-10-17
Statement:
- Sid: CloudWatchWriteLogsPolicy
Effect: Allow
Action:
- logs:CreateLogGroup
- logs:CreateLogStream
- logs:PutLogEvents
Resource: '*'
- Sid: CodeCommitPullPolicy
Effect: Allow
Action:
- codecommit:GitPull
Resource: '*'
- Sid: S3GetObjectPolicy
Effect: Allow
Action:
- s3:GetObject
- s3:GetObjectVersion
Resource: '*'
- Sid: S3PutObjectPolicy
Effect: Allow
Action:
- s3:PutObject
Resource: '*'
CodePipelineRole:
Type: AWS::IAM::Role
DependsOn: CloudFormationRole
Properties:
AssumeRolePolicyDocument:
Version: 2012-10-17
Statement:
- Effect: Allow
Action:
- sts:AssumeRole
Principal:
Service:
- codepipeline.amazonaws.com
ManagedPolicyArns:
- arn:aws:iam::aws:policy/AdministratorAccess
CloudFormationRole:
Type: AWS::IAM::Role
Properties:
AssumeRolePolicyDocument:
Version: 2012-10-17
Statement:
- Effect: Allow
Action:
- sts:AssumeRole
Principal:
Service:
- cloudformation.amazonaws.com
ManagedPolicyArns:
- arn:aws:iam::aws:policy/AdministratorAccess
CodeCommitRepository:
Type: AWS::CodeCommit::Repository
Properties:
RepositoryName: !Ref SourceRepositoryName
CodeBuildProject:
Type: AWS::CodeBuild::Project
DependsOn: CloudFormationRole
Properties:
Description: A playground of Lambda
Artifacts:
Type: CODEPIPELINE
Environment:
ComputeType: BUILD_GENERAL1_SMALL
Image: aws/codebuild/python:2.7.12
Type: LINUX_CONTAINER
Name: lambda-playground
ServiceRole: !GetAtt CodeBuildRole.Arn
Source:
Type: CODEPIPELINE
TimeoutInMinutes: 5
CodePipeline:
Type: AWS::CodePipeline::Pipeline
Properties:
ArtifactStore:
Type: S3
Location: !Ref ArtifactsBucket
Name: !Ref AWS::StackName
RestartExecutionOnUpdate: true
RoleArn: !GetAtt CodePipelineRole.Arn
Stages:
- Name: Source
Actions:
- Name: Source
ActionTypeId:
Category: Source
Owner: AWS
Provider: CodeCommit
Version: 1
Configuration:
RepositoryName: !Ref SourceRepositoryName
BranchName: !Ref SourceBranchName
OutputArtifacts:
- Name: SourceOutput
- Name: PipelineDeploy
Actions:
- Name: UpdatePipeline
ActionTypeId:
Category: Deploy
Owner: AWS
Provider: CloudFormation
Version: 1
Configuration:
ActionMode: CREATE_UPDATE
Capabilities: CAPABILITY_IAM
RoleArn: !GetAtt CloudFormationRole.Arn
StackName: !Ref AWS::StackName
TemplatePath: SourceOutput::infra.yml
InputArtifacts:
- Name: SourceOutput
- Name: Build
Actions:
- Name: BuildAndTest
ActionTypeId:
Category: Build
Owner: AWS
Provider: CodeBuild
Version: 1
Configuration:
ProjectName: !Ref CodeBuildProject
InputArtifacts:
- Name: SourceOutput
OutputArtifacts:
- Name: BuildOutput
LambdaFunction:
Type: AWS::Lambda::Function
Properties:
Code:
S3Bucket: !Ref ArtifactsBucket
S3Key: !Ref BuildOutput # DOES NOT WORK
FunctionName: playground-fc
Handler: src.main.handler
# TODO: Role: foo
Runtime: python2.7
Outputs:
ArtifactsBucketURL:
Description: Artifacts bucket URL
Value: !GetAtt ArtifactsBucket.WebsiteURL
RepositoryURL:
Description: SSH URL of the repository
Value: !GetAtt CodeCommitRepository.CloneUrlSsh
所以我有一個包含3個階段的CodePipeline - Source
,它從CodeCommit倉庫中獲取代碼, PipelineDeploy
,如果需要,它會更新我的CloudFormation堆棧,以及運行已配置的CodeBuild項目的Build
。
我的buildspec.yml在這里:
version: 0.1
phases:
install:
commands:
- pip install -r requirements.txt -t lib
pre_build:
commands:
- python lib/pytest.py src
artifacts:
type: zip
files:
- src/**/*
- lib/**/*
它只是安裝必要的庫,通過pytest運行測試並創建一個部署zip。 此zip文件是Build
階段的OutputArtifact
,並存儲在ArtifactsBucket
。 但是,每次都會獲得一個唯一的名稱(例如dfVV6Uh
),這是有道理的,但我不知道如何在LambdaFunction - > Properties - > Code - > S3Key字段中引用它。
所以我的問題是,如何創建堆棧/管道,在完成所有步驟后,將最新版本部署到我的AWS Lambda函數? 有沒有辦法可以使用CodeDeploy來做到這一點? 這里的最佳做法是什么?
您可以使用帶有Fn::GetArtifactAtt
的Parameter Override
和ObjectKey
屬性來動態地將AWS CodePipeline生成的工件.zip
的名稱提供給您的CloudFormation部署操作。
使用您的示例, UpdatePipeline
部署操作的配置如下所示:
Configuration:
ActionMode: CREATE_UPDATE
Capabilities: CAPABILITY_IAM
RoleArn: !GetAtt CloudFormationRole.Arn
StackName: !Ref AWS::StackName
TemplatePath: SourceOutput::infra.yml
ParameterOverrides:
{
"LambdaKey" : { "Fn::GetArtifactAtt" : ["LambdaFunctionSource", "ObjectKey"]}
}
InputArtifacts:
- Name: SourceOutput
- Name: BuildOutput
然后,聲明然后在您的LambdaKey
堆棧模板中引用LambdaKey
參數:
Parameters:
LambdaKey:
Type: String
# ...
Resources:
LambdaFunction:
Type: AWS::Lambda::Function
Properties:
Code:
S3Bucket: !Ref ArtifactsBucket
S3Key: !Ref LambdaKey
# ...
有一個例子說明如何實現類似的東西(通過CodePipeline / CodeBuild部署lambda函數)。 http://docs.aws.amazon.com/lambda/latest/dg/automating-deployment.html
這個例子是用NodeJS編寫的lambda函數,但基本思路是一樣的。 在通過CodeBuild構建工件之后,使用CloudFormation部署/更新lambda函數,並讓CodePipeline在階段內管理工件傳播。
如果這有幫助,請告訴我。
聲明:本站的技術帖子網頁,遵循CC BY-SA 4.0協議,如果您需要轉載,請注明本站網址或者原文地址。任何問題請咨詢:yoyou2525@163.com.