我正在将AWS与Terraform结合使用以提高基础性能,但特别是在使用混合实例策略来简化ASG时遇到了问题。我正在尝试启动一个ASG,在这种情况下,一个实例总是按需提供的,其余的点(都是相同类型的),从表面上看,这看起来很简单,但我已经尝试了一段时间,并不断遇到各种错误。这是我目前正在使用的:
resource "aws_launch_template" "lt" {
name_prefix = "danny_test-"
vpc_security_group_ids = [
"${module.sec_groups.security_group_id_common}",
"${module.sec_groups.security_group_id_ssh}",
"${module.sec_groups.security_group_id_web}"
]
image_id = "${module.core_ami.core_ami_id}"
instance_type = "t2.small"
key_name = "${var.ssh_privkey_name}"
user_data = "${base64encode(data.template_file.common_user_data.rendered)}"
iam_instance_profile {
name = "${module.infradev_remote_state.iam_profile_updater_id}"
}
lifecycle {
create_before_destroy = true
}
}
resource "aws_autoscaling_group" "asg" {
name = "danny_test"
vpc_zone_identifier = ["${split(",", module.environment.private_subnet_ids)}"]
#launch_configuration = "${aws_launch_configuration.lc.name}"
min_size = "0"
max_size = "1"
desired_capacity = "1"
health_check_grace_period = "600"
health_check_type = "EC2"
launch_template {
id = "${aws_launch_template.lt.id}"
}
mixed_instances_policy {
instances_distribution {
on_demand_base_capacity = "1"
}
}
}
但是我得到这个错误:
Error: aws_autoscaling_group.asg: "mixed_instances_policy.0.launch_template": required field is not set
根据文档 launch_template 是可选的。我曾尝试设置此设置,但它只是陷入了一些可选设置的困境中,其中一些我根本不想设置(例如覆盖)。
实现我追求的目标的正确方法是什么?无论哪种方式,基于上述情况,文档似乎至少部分是错误的...
答案 0 :(得分:1)
该文档似乎是错误的,因为它被设置为Required
field in the actual code:
"mixed_instances_policy": {
Type: schema.TypeList,
Optional: true,
MaxItems: 1,
Elem: &schema.Resource{
Schema: map[string]*schema.Schema{
# ...
"launch_template": {
Type: schema.TypeList,
Required: true,
MinItems: 1,
MaxItems: 1,
aws_autoscaling_group
resource docs显示了一个有用的示例,其中包括您提到的可选替代:
resource "aws_launch_template" "example" {
name_prefix = "example"
image_id = "${data.aws_ami.example.id}"
instance_type = "c5.large"
}
resource "aws_autoscaling_group" "example" {
availability_zones = ["us-east-1a"]
desired_capacity = 1
max_size = 1
min_size = 1
mixed_instances_policy {
launch_template {
launch_template_specification {
launch_template_id = "${aws_launch_template.example.id}"
}
override {
instance_type = "c4.large"
}
override {
instance_type = "c3.large"
}
}
}
}
这些替代实际上是可选的,如the code所示:
"override": {
Type: schema.TypeList,
Optional: true,
Elem: &schema.Resource{
Schema: map[string]*schema.Schema{
"instance_type": {
Type: schema.TypeString,
Optional: true,
},
},
},
},