在 Azure DevOps Pipelines 中分配 AWS Cloudformation 输出变量

Question

我的团队正在使用 Azure Devops 管道将 Cloudformation 堆栈部署到 AWS。我们有可重用的通用 Cloudformation 模板（例如，可重用于部署多个 Lambda 函数的单个 Lambda.yml Cloudformation 模板）。

除此之外，我还设置了一个阶梯函数来编排逻辑流程。 step 函数步骤需要引用基础架构各个部分的 ARN（对于本示例，重点关注 lambda 函数）。

由于 Lambda.yml 被重用，每次任务重用模板来部署新的 lambda 时，输出变量都会被覆盖。我想在 Azure Devops 的变量或参数中捕获每个任务之后的输出。我查看了许多示例和有关变量的文档，但我无法让它工作。 Cloudformation 模板和部署脚本的相关部分在此处列出（YAML 格式）。

Lambda.yml（Cloudformation 模板）

AWSTemplateFormatVersion: '2010-09-09'
Description: Template for Lambda function.
Parameters:
  FunctionName: 
    Description: The name of the Lambda function
    Type: String

Resources:
  LambdaFunction:
    Type: AWS::Lambda::Function
    Properties:
      FunctionName: !Ref FunctionName
.....

Outputs:
  LambdaFunctionName:
    Description: Lambda function name
    Value: !Ref LambdaFunction
  LambdaFunctionARN:
    Description: Lambda ARN
    Value: 
      Fn::GetAtt:
        - LambdaFunction
        - Arn

Deploy.yml（Azure Devops 管道部署）

# Deploy.yml is a series of deployment tasks called from a job/stage defined in another.yml file
# LambdaFunctionNumber1
- task: AmazonWebServices.aws-vsts-tools.CloudFormationCreateOrUpdateStack.CloudFormationCreateOrUpdateStack@1
  displayName: 'Stack: LambdaFunctionNumber1'
  inputs:
    templateSource: s3
    s3BucketName: ${{ parameters.azdoS3ArtifactBucket }}
    s3ObjectKey: '${{ parameters.azdoS3ArtifactPrefix }}/cfn/Lambda.yml'
    templateParametersSource: inline
    templateParameters: |
     -
         ParameterKey: FunctionName
         ParameterValue: LambdaFunctionNumber1
    ....
    captureStackOutputs: asVariables

# I would like to capture Cloudformation output variables here for use in other tasks
# variables lambdaNumberOneFunctionName and lambdaNumberOneFunctionArn are defined as variables by the job triggering these deployment tasks, and initialized to empty strings
- bash:
    echo "##vso[task.setvariable variable=lambdaNumbertOneFunctionName;isOutput=true]$LAMBDAFUNCTIONNAME"
    echo "##vso[task.setvariable variable=lambdaNumberOneFunctionArn;isOutput=true]$LAMBDAFUNCTIONARN"

# LambdaFunctionNumber2
- task: AmazonWebServices.aws-vsts-tools.CloudFormationCreateOrUpdateStack.CloudFormationCreateOrUpdateStack@1
  displayName: 'Stack: LambdaFunctionNumber2'
  inputs:
    templateSource: s3
    s3BucketName: ${{ parameters.azdoS3ArtifactBucket }}
    s3ObjectKey: '${{ parameters.azdoS3ArtifactPrefix }}/cfn/Lambda.yml'
    templateParametersSource: inline
    templateParameters: |
     -
         ParameterKey: FunctionName
         ParameterValue: LambdaFunctionNumber2
    ....
    captureStackOutputs: asVariables

# At this point the $(LambdaFunctionARN) output variable is set from Cloudformation of LambdaFunctionNumber2. 
# The ARN from LambdaFunctionNumber1 is lost unless I capture it somehow.
# I need multiple ARNs to provide as input to the Step Function that gets deployed here
- task: AmazonWebServices.aws-vsts-tools.CloudFormationCreateOrUpdateStack.CloudFormationCreateOrUpdateStack@1
  displayName: 'Stack: Step Function'
  inputs:
    stackName:step-function
    templateSource: s3
    s3BucketName: ${{ parameters.azdoS3ArtifactBucket }}
    s3ObjectKey: '${{ parameters.azdoS3ArtifactPrefix }}/cfn/StepFunction.yml'
    ....

    templateParametersSource: inline
    templateParameters: |
     -
         ParameterKey: StateMachineName
         ParameterValue: orchestration-step-function
     -
         # This doesn't work
         ParameterKey: State1LambdaArn
         ParameterValue: $[lambdaNumberOneFunctionArn]
     -
         # This works but only allows capturing the most recent output variable
         ParameterKey: State2LambdaArn
         ParameterValue: $(LambdaFunctionARN)

Answer 1

您可以尝试命名设置变量的步骤，然后使用步骤名称作为变量名称的一部分。您甚至可以将变量名称定义为模板参数，这样每次您都会获得一个唯一的名称。在代码中可能如下所示：

模板.yaml

parameters:
- name: name
  type: string
  default: 'lambdaNumbertOneFunctionName'
- name: arn
  type: string
  default: 'lambdaNumberOneFunctionArn'
- name: stepName
  type: string
  default: 'StepOne'
- name: value
  type: string
  default: 'testValue'

steps:
- bash: |
    echo "##vso[task.setvariable variable=${{ parameters.name }};isOutput=true]${{ parameters.value }}"
    echo "##vso[task.setvariable variable=${{ parameters.arn }};isOutput=true]${{ parameters.value }}"
    echo "##vso[task.setvariable variable=Test;isOutput=true]${{ parameters.value }}"
    echo "##vso[task.setvariable variable=Test2;isOutput=true]Yesy2"
  name: ${{ parameters.stepName }}

- script: |
    echo $(${{ parameters.stepName }}.${{ parameters.name }})
    echo $(${{ parameters.stepName }}.${{ parameters.arn }})
    echo $(${{ parameters.stepName }}.Test)
    echo $(${{ parameters.stepName }}.Test2)

和主文件

jobs:
- job: myJob
  timeoutInMinutes: 10
  pool:
    vmImage: 'ubuntu-16.04'
  steps:
  - template: template.yaml
    parameters:
      name: 'lambdaNumbertOneFunctionName'
      arn: 'lambdaNumberOneFunctionArn'
      value: 'value-1'
      stepName: 'StepOne'
  - template: template.yaml
    parameters:
      name: 'lambdaNumberTwoFunctionName'
      arn: 'lambdaNumberTwoFunctionArn'
      value: 'value-2'
      stepName: 'StepTwo'
  - script: |
      echo 'lambdaNumbertOneFunctionName - $(StepOne.lambdaNumbertOneFunctionName)'
      echo 'lambdaNumberOneFunctionArn - $(StepOne.lambdaNumberOneFunctionArn)'
      echo 'lambdaNumberTwoFunctionName - $(StepTwo.lambdaNumberTwoFunctionName)'
      echo 'lambdaNumberTwoFunctionArn - $(StepTwo.lambdaNumberTwoFunctionArn)'

为此我得到了：

lambdaNumbertOneFunctionName - value-1
lambdaNumberOneFunctionArn - value-1
lambdaNumberTwoFunctionName - value-2
lambdaNumberTwoFunctionArn - value-2

我希望我能理解你和你的问题并解决它:)