ebs-auto-snapshot

Lambda function to take snapshot of EBS volume

Lambda function configuration:

Runtime: Python 2.7
Handler: index.handler

Role: Create a lambda role with this inline policy

{
    "Version": "2012-10-17",
    "Statement": [
        {
            "Action": [
                "lambda:InvokeFunction"
            ],
            "Resource": [
                "*"
            ],
            "Effect": "Allow"
        },
        {
            "Action": [
                "ec2:DeleteSnapshot",
                "ec2:DescribeSnapshots",
                "ec2:CreateSnapshot"
            ],
            "Resource": [
                "*"
            ],
            "Effect": "Allow"
        }
    ]
 }

Example payload (lambda test event):

{
  "volumeId":"vol-xxxxxxx",
  "description":"Root vol",
  "retentionDays":"7"
}

EC2 configuration:

EC2 role: must include this policy: lambda:InvokeFunction
Install CLI:

curl -O https://bootstrap.pypa.io/get-pip.py
apt-get install -qq python-dev
python2.7 get-pip.py
pip install --upgrade awscli

Crontab entry:

0 5 * * * /usr/local/bin/aws lambda invoke --region us-east-1 --function-name <lambda function arn> --payload '{"volumeId":"vol-xxxxxxxxxxx", "description":"Root Vol", "retentionDays":"14"}' output.txt

casper-gh/ebs-auto-snapshot

ebs-auto-snapshot