lambda-maxmind-downloader

This lambda function is designed to download files from maxmind and store them in an s3 bucket.

Development

Pre-requisites

• pipenv - for dependency management
• pyenv - for selecting python version or python 3.6

Running tests

make test # This will run the unittests
make test-all # This will run the format/unit/safety tests

Usage

For this function to work you would need a maxmind license as well as an s3 bucket that this lambda can store its content in and is accessible from the lambda

Maxmind data bucket

• Setup an s3 bucket for objects to exists in this should be a private bucket by default

Define a maxmind lambda function

This function accesses the maxmind services and retrieves the required files it then uploads these to the s3 bucket we have defined

The function should call the maxmind.handler method

Environment Variables

• MAXMIND_LICENSE - the license used to access maxmind
• MAXMIND_S3_BUCKET - the bucket to store maxmind files

There are a few other environment variables which can be set but, however they have sensible defaults

Lambda policy

The policy for the lambda should allow it to at minimum access the s3 bucket for storing

{
    "Version": "2012-10-17",
    "Statement": [
        {
            "Effect": "Allow",
            "Action": [
                "s3:PutObject"
            ],
            "Resource": [
              "arn:aws:s3:::<bucket-name>/**"
            ]
        }    
    ]
}

Cloudwatch event rule

To ensure this is kept up to date we need to create a cloudwatch event rule We also need to ensure the lambda function allows access from the cloudwatch event

License

This code is open source software licensed under the Apache 2.0 License.