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autoscaling.tf
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autoscaling.tf
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resource "aws_autoscaling_group" "on_demand" {
count = var.instance.enable_spot ? 0 : 1
name_prefix = "${var.resource_names["prefix"]}${var.resource_names["separator"]}"
vpc_zone_identifier = var.subnet_ids
min_size = 1
desired_capacity = var.instance.desired_capacity
max_size = var.instance.desired_capacity
force_delete = false
health_check_type = "EC2"
health_check_grace_period = 120
termination_policies = ["OldestInstance"]
launch_configuration = aws_launch_configuration.this.id
dynamic "tag" {
for_each = local.bastion_runtime_tags
content {
key = tag.key
value = tag.value
propagate_at_launch = true
}
}
lifecycle {
create_before_destroy = true
}
depends_on = [aws_launch_configuration.this]
}
resource "aws_autoscaling_group" "on_spot" {
count = var.instance.enable_spot ? 1 : 0
name = var.resource_names["prefix"]
vpc_zone_identifier = var.subnet_ids
min_size = 1
desired_capacity = var.instance.desired_capacity
max_size = var.instance.desired_capacity
force_delete = false
health_check_type = "EC2"
health_check_grace_period = 120
termination_policies = ["OldestInstance"]
capacity_rebalance = true # https://docs.aws.amazon.com/autoscaling/ec2/userguide/ec2-auto-scaling-capacity-rebalancing.html
mixed_instances_policy {
instances_distribution {
on_demand_percentage_above_base_capacity = var.instances_distribution.on_demand_percentage_above_base_capacity
on_demand_base_capacity = var.instances_distribution.on_demand_base_capacity
spot_allocation_strategy = var.instances_distribution.spot_allocation_strategy
}
launch_template {
launch_template_specification {
launch_template_id = aws_launch_template.manual_start.id
version = "$Latest"
}
}
}
dynamic "tag" {
for_each = local.bastion_runtime_tags
content {
key = tag.key
value = tag.value
propagate_at_launch = true
}
}
lifecycle {
create_before_destroy = true
}
}
resource "aws_autoscaling_schedule" "up" {
count = var.schedule != null ? 1 : 0
scheduled_action_name = "${local.resource_prefix_with_separator}start"
recurrence = var.schedule["start"]
time_zone = var.schedule["time_zone"]
min_size = 1
max_size = var.instance.desired_capacity
desired_capacity = var.instance.desired_capacity
autoscaling_group_name = local.auto_scaling_group.name
}
resource "aws_autoscaling_schedule" "down" {
count = var.schedule != null ? 1 : 0
scheduled_action_name = "${local.resource_prefix_with_separator}stop"
recurrence = var.schedule["stop"]
time_zone = var.schedule["time_zone"]
min_size = 0
max_size = 0
desired_capacity = 0
autoscaling_group_name = local.auto_scaling_group.name
}