main.tf

data "template_file" "db_migrate_task" {
  template = "${file("${path.module}/tasks/db_migrate_task_definition.json")}"

  vars {
    image             = "${aws_ecr_repository.app.repository_url}"
    database_username = "${var.database_username}"
    database_password = "${var.database_password}"
    database_endpoint = "${var.database_endpoint}"
    database_name     = "${var.database_name}"
    log_group         = "${var.project_name}"
    region            = "${var.region}"
    sendgrid_api_key  = "${var.sendgrid_api_key}"
  }
}

resource "aws_ecs_task_definition" "db_migrate" {
  family                   = "${var.environment}_db_migrate"
  container_definitions    = "${data.template_file.db_migrate_task.rendered}"
  requires_compatibilities = ["FARGATE"]
  network_mode             = "awsvpc"
  cpu                      = "256"
  memory                   = "512"
  execution_role_arn       = "${aws_iam_role.ecs_execution_role.arn}"
  task_role_arn            = "${aws_iam_role.ecs_execution_role.arn}"
}