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Enable create_before_destroy for ASG and enable force_delete to be configured (#250)

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* Allow force_delete to be passed to the ASG, and set ASG so that it will create before deletion.

* Set default

* Adding CHANGELOG
This commit is contained in:
Stefan Sedich
2019-01-24 01:48:26 -08:00
committed by Max Williams
parent 89461903b4
commit 8473c69f25
4 changed files with 10 additions and 2 deletions
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4
CHANGELOG.md
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@@ -11,11 +11,11 @@ project adheres to [Semantic Versioning](http://semver.org/).
##### Added
- Write your awesome addition here (by @you)
- Ability to configure force_delete for the worker group ASG (by @stefansedich)
##### Changed
- Write your awesome change here (by @you)
- Change worker group ASG to use create_before_destroy (by @stefansedich)
# History

2
local.tf
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@@ -15,6 +15,7 @@ locals {
asg_desired_capacity = "1" # Desired worker capacity in the autoscaling group.
asg_max_size = "3" # Maximum worker capacity in the autoscaling group.
asg_min_size = "1" # Minimum worker capacity in the autoscaling group.
asg_force_delete = false # Enable forced deletion for the autoscaling group.
instance_type = "m4.large" # Size of the workers instances.
spot_price = "" # Cost of spot instance.
placement_tenancy = "" # The tenancy of the instance. Valid values are "default" or "dedicated".
@@ -46,6 +47,7 @@ locals {
asg_desired_capacity = "1" # Desired worker capacity in the autoscaling group.
asg_max_size = "3" # Maximum worker capacity in the autoscaling group.
asg_min_size = "1" # Minimum worker capacity in the autoscaling group.
asg_force_delete = false # Enable forced deletion for the autoscaling group.
instance_type = "m4.large" # Size of the workers instances.
override_instance_type = "t3.large" # Need to specify at least one additional instance type for mixed instances policy. The instance_type holds higher priority for on demand instances.
on_demand_allocation_strategy = "prioritized" # Strategy to use when launching on-demand instances. Valid values: prioritized.

3
workers.tf
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@@ -5,6 +5,7 @@ resource "aws_autoscaling_group" "workers" {
desired_capacity = "${lookup(var.worker_groups[count.index], "asg_desired_capacity", local.workers_group_defaults["asg_desired_capacity"])}"
max_size = "${lookup(var.worker_groups[count.index], "asg_max_size", local.workers_group_defaults["asg_max_size"])}"
min_size = "${lookup(var.worker_groups[count.index], "asg_min_size", local.workers_group_defaults["asg_min_size"])}"
force_delete = "${lookup(var.worker_groups[count.index], "asg_force_delete", local.workers_group_defaults["asg_force_delete"])}"
target_group_arns = ["${compact(split(",", coalesce(lookup(var.worker_groups[count.index], "target_group_arns", ""), local.workers_group_defaults["target_group_arns"])))}"]
launch_configuration = "${element(aws_launch_configuration.workers.*.id, count.index)}"
vpc_zone_identifier = ["${split(",", coalesce(lookup(var.worker_groups[count.index], "subnets", ""), local.workers_group_defaults["subnets"]))}"]
@@ -22,6 +23,8 @@ resource "aws_autoscaling_group" "workers" {
}"]
lifecycle {
create_before_destroy = true
ignore_changes = ["desired_capacity"]
}
}

3
workers_launch_template.tf
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@@ -5,6 +5,7 @@ resource "aws_autoscaling_group" "workers_launch_template" {
desired_capacity = "${lookup(var.worker_groups_launch_template[count.index], "asg_desired_capacity", local.workers_group_launch_template_defaults["asg_desired_capacity"])}"
max_size = "${lookup(var.worker_groups_launch_template[count.index], "asg_max_size", local.workers_group_launch_template_defaults["asg_max_size"])}"
min_size = "${lookup(var.worker_groups_launch_template[count.index], "asg_min_size", local.workers_group_launch_template_defaults["asg_min_size"])}"
force_delete = "${lookup(var.worker_groups_launch_template[count.index], "asg_force_delete", local.workers_group_launch_template_defaults["asg_force_delete"])}"
target_group_arns = ["${compact(split(",", coalesce(lookup(var.worker_groups_launch_template[count.index], "target_group_arns", ""), local.workers_group_launch_template_defaults["target_group_arns"])))}"]
mixed_instances_policy {
@@ -48,6 +49,8 @@ resource "aws_autoscaling_group" "workers_launch_template" {
}"]
lifecycle {
create_before_destroy = true
ignore_changes = ["desired_capacity"]
}
}