Create a scheduled Lambda function using CloudWatch Event Rules

example.tf

resource "aws_lambda_function" "check_foo" {
    filename = "check_foo.zip"
    function_name = "checkFoo"
    role = "arn:aws:iam::424242:role/something"
    handler = "index.handler"
}

resource "aws_cloudwatch_event_rule" "every_five_minutes" {
    name = "every-five-minutes"
    description = "Fires every five minutes"
    schedule_expression = "rate(5 minutes)"
}

resource "aws_cloudwatch_event_target" "check_foo_every_five_minutes" {
    rule = "${aws_cloudwatch_event_rule.every_five_minutes.name}"
    target_id = "check_foo"
    arn = "${aws_lambda_function.check_foo.arn}"
}

resource "aws_lambda_permission" "allow_cloudwatch_to_call_check_foo" {
    statement_id = "AllowExecutionFromCloudWatch"
    action = "lambda:InvokeFunction"
    function_name = "${aws_lambda_function.check_foo.function_name}"
    principal = "events.amazonaws.com"
    source_arn = "${aws_cloudwatch_event_rule.every_five_minutes.arn}"
}