AWS CloudWatch schedule for lambda execution

lambda_cloudwatch_schedule.tf

resource "aws_lambda_function" "check" {
    filename = "./check.zip"
    function_name = "check"
    role = "arn:aws:iam::424242:role/something"
    handler = "main"
    runtime = "go1.x"
    source_code_hash = "${base64sha256(file("./check.zip"))}"
}

resource "aws_cloudwatch_event_rule" "every_twelve_hours" {
    name = "every-twelve-hours"
    description = "Fires every twelve hours"
    schedule_expression = "cron(0 12 * * ? *)"
}

resource "aws_cloudwatch_event_target" "check_every_twelve_hours" {
    rule = "${aws_cloudwatch_event_rule.every_twelve_hours.name}"
    target_id = "check"
    arn = "${aws_lambda_function.check.arn}"
}

resource "aws_lambda_permission" "allow_cloudwatch_to_call_check" {
    statement_id = "AllowExecutionFromCloudWatch"
    action = "lambda:InvokeFunction"
    function_name = "${aws_lambda_function.check.function_name}"
    principal = "events.amazonaws.com"
    source_arn = "${aws_cloudwatch_event_rule.every_twelve_hours.arn}"
}