Below is the series of Terraform commands run and the relevant snippets of output from each:
resource "aws_ecs_service" "service" {
name = "${var.service_name}"
cluster = "${var.cluster_id}"
desired_count = "${var.desired_count}"
iam_role = "${aws_iam_role.ecsServiceRole.arn}"
depends_on = ["aws_iam_role_policy.ecsServiceRolePolicy", "aws_alb_listener.https"]
placement_strategy {
type = "spread"
field = "instanceId"
}
load_balancer {
target_group_arn = "${aws_alb_target_group.tg.arn}"
container_name = "${var.lb_container_name}"
container_port = "${var.lb_container_port}"
}
# Track the latest ACTIVE revision
task_definition = "${aws_ecs_task_definition.td.family}:${max("${aws_ecs_task_definition.td.revision}", "${data.aws_ecs_task_definition.td.revision}")}"
}$ terraform apply
...
module.ecsservice.aws_ecs_service.service: Creating...
cluster: "" => "arn:aws:ecs:us-east-1:123456789012:cluster/terraform-testing"
deployment_maximum_percent: "" => "200"
deployment_minimum_healthy_percent: "" => "100"
desired_count: "" => "3"
iam_role: "" => "arn:aws:iam::123456789012:role/ecsServiceRole"
load_balancer.#: "" => "1"
load_balancer.987343868.container_name: "" => "app"
load_balancer.987343868.container_port: "" => "80"
load_balancer.987343868.elb_name: "" => ""
load_balancer.987343868.target_group_arn: "" => "arn:aws:elasticloadbalancing:us-east-1:123456789012:targetgroup/tg-doorman/f82e209888079421"
name: "" => "doorman"
placement_strategy.#: "" => "1"
placement_strategy.3946258308.field: "" => "instanceId"
placement_strategy.3946258308.type: "" => "spread"
task_definition: "" => "doorman-staging:18"
...
$ terraform plan
...
-/+ module.ecsservice.aws_ecs_service.service
cluster: "arn:aws:ecs:us-east-1:123456789012:cluster/terraform-testing" => "arn:aws:ecs:us-east-1:123456789012:cluster/terraform-testing"
deployment_maximum_percent: "200" => "200"
deployment_minimum_healthy_percent: "100" => "100"
desired_count: "3" => "3"
iam_role: "arn:aws:iam::123456789012:role/ecsServiceRole" => "arn:aws:iam::123456789012:role/ecsServiceRole"
load_balancer.#: "1" => "1"
load_balancer.987343868.container_name: "app" => "app"
load_balancer.987343868.container_port: "80" => "80"
load_balancer.987343868.elb_name: "" => ""
load_balancer.987343868.target_group_arn: "arn:aws:elasticloadbalancing:us-east-1:123456789012:targetgroup/tg-doorman/f82e209888079421" => "arn:aws:elasticloadbalancing:us-east-1:123456789012:targetgroup/tg-doorman/f82e209888079421"
name: "doorman" => "doorman"
placement_strategy.#: "1" => "1"
placement_strategy.1676812570.field: "instanceid" => "" (forces new resource)
placement_strategy.1676812570.type: "spread" => "" (forces new resource)
placement_strategy.3946258308.field: "" => "instanceId" (forces new resource)
placement_strategy.3946258308.type: "" => "spread" (forces new resource)
task_definition: "doorman-staging:18" => "doorman-staging:18"
Plan: 1 to add, 0 to change, 1 to destroy.
$ terraform apply
...
module.ecsservice.aws_ecs_service.service: Destroying... (ID: arn:aws:e.../doorman)
module.ecsservice.aws_ecs_service.service: Still destroying... (ID: arn:aws:e.../doorman, 10s elapsed)
module.ecsservice.aws_ecs_service.service: Still destroying... (ID: arn:aws:e.../doorman, 1m20s elapsed)
module.ecsservice.aws_ecs_service.service: Destruction complete
module.ecsservice.aws_ecs_service.service: Creating...
cluster: "" => "arn:aws:ecs:us-east-1:123456789012:cluster/terraform-testing"
deployment_maximum_percent: "" => "200"
deployment_minimum_healthy_percent: "" => "100"
desired_count: "" => "3"
iam_role: "" => "arn:aws:iam::123456789012:role/ecsServiceRole"
load_balancer.#: "" => "1"
load_balancer.987343868.container_name: "" => "app"
load_balancer.987343868.container_port: "" => "80"
load_balancer.987343868.elb_name: "" => ""
load_balancer.987343868.target_group_arn: "" => "arn:aws:elasticloadbalancing:us-east-1:123456789012:targetgroup/tg-doorman/f82e209888079421"
name: "" => "doorman"
placement_strategy.#: "" => "1"
placement_strategy.3946258308.field: "" => "instanceId"
placement_strategy.3946258308.type: "" => "spread"
task_definition: "" => "doorman-staging:18"
module.ecsservice.aws_ecs_service.service: Creation complete (ID: arn:aws:e.../doorman)
Apply complete! Resources: 1 added, 0 changed, 1 destroyed.
$ terraform plan
...
-/+ module.ecsservice.aws_ecs_service.service
cluster: "arn:aws:ecs:us-east-1:123456789012:cluster/terraform-testing" => "arn:aws:ecs:us-east-1:123456789012:cluster/terraform-testing"
deployment_maximum_percent: "200" => "200"
deployment_minimum_healthy_percent: "100" => "100"
desired_count: "3" => "3"
iam_role: "arn:aws:iam::123456789012:role/ecsServiceRole" => "arn:aws:iam::123456789012:role/ecsServiceRole"
load_balancer.#: "1" => "1"
load_balancer.987343868.container_name: "app" => "app"
load_balancer.987343868.container_port: "80" => "80"
load_balancer.987343868.elb_name: "" => ""
load_balancer.987343868.target_group_arn: "arn:aws:elasticloadbalancing:us-east-1:123456789012:targetgroup/tg-doorman/f82e209888079421" => "arn:aws:elasticloadbalancing:us-east-1:123456789012:targetgroup/tg-doorman/f82e209888079421"
name: "doorman" => "doorman"
placement_strategy.#: "1" => "1"
placement_strategy.1676812570.field: "instanceid" => "" (forces new resource)
placement_strategy.1676812570.type: "spread" => "" (forces new resource)
placement_strategy.3946258308.field: "" => "instanceId" (forces new resource)
placement_strategy.3946258308.type: "" => "spread" (forces new resource)
task_definition: "doorman-staging:18" => "doorman-staging:18"
Plan: 1 to add, 0 to change, 1 to destroy.