Add scheduled trigger for lambda function

infra/trigger.tf

@@ -0,0 +1,17 @@
+resource "aws_cloudwatch_event_rule" "every_minute" {
+  name = "${var.lambda_function_name}-every-minute"
+  schedule_expression = "rate(1 minute)"
+}
+
+resource "aws_cloudwatch_event_target" "invoke_lambda" {
+  rule      = aws_cloudwatch_event_rule.every_minute.name
+  arn       = aws_lambda_function.lambda.arn
+}
+
+resource "aws_lambda_permission" "allow_cloudwatch" {
+  statement_id  = "AllowExecutionFromCloudWatch"
+  action        = "lambda:InvokeFunction"
+  function_name = var.lambda_function_name
+  principal     = "events.amazonaws.com"
+  source_arn    = aws_cloudwatch_event_rule.every_minute.arn
+}