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Running AWS Lambda Functions in a VPC and Accessing RDS

Running AWS Lambda in VPC and Accessing RDS

AWS Lambda allows us running code without maintaining servers and paying only for the resources allocated during the code run. In most cases, we do not need to run our Lambda function in a VPC and it is recommended not to run in a VPC in these situations as a best practice. Some of examples to these are sending emails using Amazon SES or accessing a DynamoDB table.

However, to access an RDS database in your Lambda function you have to run your function in the same VPC or in a VPC that has a peering connection to the VPC of your RDS instance. In this blog post I would like to discuss about running AWS Lambda functions in a VPC and accessing a RDS MySQL database. Read more at Running AWS Lambda Functions in a VPC and Accessing RDS post.

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