在 yaml 中构建 Lambda 函数 - 问题

Question

我正在构建一个 CloudFormation 部署，其中包含一个在 python 3.9 中构建的 Lambda 函数。但是，当我构建函数时，它不允许我保留单引号。这对于大多数脚本来说都不是问题，因为我只是导入 json 并且双引号 (") 可以正常工作，但有一部分需要单引号。

代码如下：

import boto3
import json

def lambda_handler(event, context):
    client = client_obj()
    associated = associated_list(client)
    response = client.list_resolver_query_log_configs(
        MaxResults=1,
    )
    config = response['ResolverQueryLogConfigs'][0]['Id']
    ec2 = boto3.client('ec2')
    vpc = ec2.describe_vpcs()
    vpcs = vpc['Vpcs']
 
    for v in vpcs:
        if v['VpcId'] not in associated:
            client.associate_resolver_query_log_config(
                ResolverQueryLogConfigId= f"{config}",
                ResourceId=f"{v['VpcId']}"
            )
        else:
            print(f"{v['VpcId']} is already linked.")
 
def client_obj():
    client = boto3.client('route53resolver')
    return client
 
def associated_list(client_object):
    associated = list()
    assoc = client_object.list_resolver_query_log_config_associations()
    for element in assoc['ResolverQueryLogConfigAssociations']:
        associated.append(element['ResourceId'])
    return associated

任何包含f"{v['VpcId']}" 的部分都需要在 [] 中加上单引号，脚本才能正常运行。由于yaml需要将脚本封装在单引号中进行打包，请问如何解决？

来自另一个脚本的 yaml 示例：

CreateIAMUser:
    Type: 'AWS::Lambda::Function'
    Properties:
      Code:
        ZipFile: !Join
          - |+

          - - import boto3
            - 'import json'
            - 'from botocore.exceptions import ClientError'
            - ''
            - ''
            - 'def lambda_handler(event, context):'
            - '    iam_client = boto3.client("iam")'
            - ''
            - '    account_id = boto3.client("sts").get_caller_identity()["Account"]'
            - ''

我想我可以重新安排脚本来避免这种情况，但如果可能的话，我想利用这个机会学习新的东西。

Answer 1

不确定您要做什么，但通常您只需在 yaml 中使用 pipe 即可：

      Code:
        ZipFile: |
            import boto3
            import json

            def lambda_handler(event, context):
                client = client_obj()
                associated = associated_list(client)
                response = client.list_resolver_query_log_configs(
                    MaxResults=1,
                )
                config = response['ResolverQueryLogConfigs'][0]['Id']
                ec2 = boto3.client('ec2')
                vpc = ec2.describe_vpcs()
                vpcs = vpc['Vpcs']
             
                for v in vpcs:
                    if v['VpcId'] not in associated:
                        client.associate_resolver_query_log_config(
                            ResolverQueryLogConfigId= f"{config}",
                            ResourceId=f"{v['VpcId']}"
                        )
                    else:
                        print(f"{v['VpcId']} is already linked.")
             
            def client_obj():
                client = boto3.client('route53resolver')
                return client
             
            def associated_list(client_object):
                associated = list()
                assoc = client_object.list_resolver_query_log_config_associations()
                for element in assoc['ResolverQueryLogConfigAssociations']:
                    associated.append(element['ResourceId'])
                return associated