🐾Should you put Lambda to your own VPC?🐾

❗When Lambda communicates with other services, it does so via public networks, but makes every attempt to do so over the AWS backbone. In other words, AWS don't guarantee that Lambda won't use the public Internet if it is located in service account VPCs.

AWS VPC cases:
🔹 Lambda checks public resources, ex. if new data is available in US Census Bureau website
🔹 Lambda sends notification that some process started or ended

CUSTOMER VPC cases:
🔸 Lambda processes data from databases in private subnets
🔸 You need to control outbound traffic
🔸 Your Lambda should be NIST compliant

AWS comment on traffic routing: We are AWS Serverless experts - Ask Us Anything

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