AWS Lambda MongoDB Vpc Peering

This repository demonstrates how a Lambda Function needs to be configured to save items in MongoDB. To connect to the MongoDB cluster vpc-peering is used.

Prerequisites

• Python3 installed, version > 3.6
• aws cli installed: instructions
• sam cli installed: instructions

UPDATES

You need to update certain config values in this project to make it work for your own vpc!

In template.yaml:

• update the environment variable that specifies the connection string, database and collection to your own connection string, database and connection.

    Environment:
      Variables:
        MONGODB_CONNECTION_STRING: mongodb+srv://<user>:<password>@<your-cluster>.mongodb.net/test?retryWrites=true&w=majority
        DATABASE: yourDatabaseName
        COLLECTION: yourCollectionName
  

• update the VpcConfig with your own vpc security group and subnet:

    VpcConfig:
      SecurityGroupIds:
        - sg-08b12e8bdf431b849
      SubnetIds:
        - subnet-08a19d1a47914c5ac

Deploy

From the root directory run ./deploy.sh

This will:

• install the needed dependencies
• zip your code
• deploy the lambda function

Answer y on the input that is asked.

When you have deployed successfully you could change the last line of the script sam deploy --guided to sam deploy.