如何将第二个注册的目标(具有不同的端口)添加到指向任务定义的alb目标组

Question

我从这个可交付的教程开始，作为创建我的AWS环境的基础：http://blog.shippable.com/setup-a-container-cluster-on-aws-with-terraform-part-2-provision-a-cluster

现在，我有两个服务，每个服务在2个负载均衡器后面的2个EC2实例上运行2个容器(每个服务1个)。我正在尝试将另一个具有不同端口的注册目标添加到目标组，并将其指向我的一个容器。监听器很容易添加到ALB中，但我似乎不知道如何添加第二个目标来动态指向运行我的服务的实例。

在UI中，我只能手动将它指向AWS实例，而不能让它动态地指向运行我的服务的任何实例。

以下内容看起来应该可以工作，但由于我的容器是在任务中创建的，我似乎无法访问将target_ip指向的容器id，也无法将其指向服务。

resource "aws_alb_target_group_attachment" "test" {
target_group_arn = "${aws_alb_target_group.ecs-target-group.arn}"
target_id        = "${aws_ecs_task_definition.test.id}"
port             = 5000
}

以下是更多用于上下文的地形代码：

resource "aws_alb" "ecs-load-balancer" {
name                = "ecs-load-balancer"
security_groups     = ["${aws_security_group.test_public_sg.id}"]
subnets             = ["${aws_subnet.test_public_sn_01.id}", "${aws_subnet.test_public_sn_02.id}"]
tags {
Name = "ecs-load-balancer"
}
}
resource "aws_alb_target_group" "ecs-target-group" {
name                = "ecs-target-group"
port                = "80"
protocol            = "HTTP"
vpc_id              = "${aws_vpc.test_vpc.id}"
health_check {
healthy_threshold   = "5"
unhealthy_threshold = "2"
interval            = "30"
matcher             = "200"
path                = "/"
port                = "traffic-port"
protocol            = "HTTP"
timeout             = "5"
}
tags {
Name = "ecs-target-group"
}
}
resource "aws_alb_listener" "alb-listener" {
load_balancer_arn = "${aws_alb.ecs-load-balancer.arn}"
port              = "80"
protocol          = "HTTP"
default_action {
target_group_arn = "${aws_alb_target_group.ecs-target-group.arn}"
type             = "forward"
}
}
resource "aws_alb_listener" "alb-listener-vemcoio" {
load_balancer_arn = "${aws_alb.ecs-load-balancer.arn}"
port              = "5000"
protocol          = "HTTP"
default_action {
target_group_arn = "${aws_alb_target_group.ecs-target-group.arn}"
type             = "forward"
}
}
resource "aws_ecs_task_definition" "test" {
family                = "test"
container_definitions = "${data.template_file.test.rendered}"
}
data "template_file" "test" {
depends_on = ["aws_instance.mongodb_one"]
template = "${file("task-definitions/test.json")}"
vars {
mongo_ip = "${aws_instance.mongodb_one.private_ip}"
}
}

Answer 1

您不需要使用资源"aws_alb_target_group_attachment"将目标组与容器、任务或实例连接起来。

您可以使用以下代码。它将自动处理ecs任务的动态端口。

检查以下代码的最后四行。

resource "aws_lb_target_group" "rc" {
name       = "rc"
port       = 80
protocol   = "HTTP"
vpc_id     = "${var.vpc_id}"
}
resource "aws_lb_listener_rule" "rc" {
listener_arn = "${var.listener_arn}"
priority     = 100
action {
type             = "forward"
target_group_arn = "${aws_lb_target_group.rc.arn}"
}
condition {
field  = "host-header"
values = ["www.domain.com"]
}
}
resource "aws_ecs_service" "rc" {
name    = "${var.name}"
cluster = "${var.cluster}"
task_definition = "${aws_ecs_task_definition.rc.arn}"
desired_count   = "${var.desired_count}"
health_check_grace_period_seconds = "${var.health_grace_period}"
deployment_maximum_percent         = "${var.deployment_maximum_percent}"
deployment_minimum_healthy_percent = "${var.deployment_minimum_healthy_percent}"
load_balancer {
target_group_arn = "${aws_lb_target_group.rc.arn}"
container_name   = "test"
container_port   = 5000
}
}