[英]How do I force terraform to recreate a resource?
I have two resources:我有两个资源:
resource "aws_lightsail_instance" "myserver-sig" {
name = "myserver-Sig"
availability_zone = "eu-west-2a"
blueprint_id = "ubuntu_20_04"
bundle_id = "nano_2_0"
key_pair_name = "LightsailDefaultKeyPair"
}
and和
resource "aws_lightsail_instance_public_ports" "myserver-sig-public-ports" {
instance_name = aws_lightsail_instance.myserver-sig.name
port_info {
protocol = "tcp"
from_port = 443
to_port = 443
}
port_info {
protocol = "tcp"
from_port = 80
to_port = 80
}
depends_on = [
aws_lightsail_instance.myserver-sig,
]
}
When I first run terraform apply
both resources are created.当我第一次运行terraform apply
时,这两个资源都被创建了。
If I want to replace the aws_lightsail_instance
with a new version then the aws_lightsail_instance
will redeploy, but the aws_lightsail_instance_public_ports
will not because the ports haven't changed.如果我想用新版本替换aws_lightsail_instance
,则aws_lightsail_instance
将重新部署,但aws_lightsail_instance_public_ports
不会,因为端口没有更改。
However as part of the deploy of aws_lightsail_instance
it changes the public ports to close 443 and open 22. This means that the end state of the redeploy of the aws_lightsail_instance
is that port 443 is closed.但是,作为aws_lightsail_instance
部署的一部分,它会将公共端口更改为关闭 443 并打开 22。这意味着重新部署 aws_lightsail_instance 的结尾aws_lightsail_instance
是端口 443 已关闭。
If I run terraform apply
again then it will correctly replace aws_lightsail_instance_public_ports
opening port 443如果我再次运行terraform apply
那么它将正确替换aws_lightsail_instance_public_ports
打开端口 443
How do I force a recreation of the aws_lightsail_instance_public_ports
resource so that I only have to run terraform apply
once?如何强制重新创建aws_lightsail_instance_public_ports
资源,以便我只需运行一次terraform apply
?
You can force the recreation (delete/create or -/+) by using the -replace=ADDRESS
argument with terraform plan
or terraform apply
:您可以通过使用带有terraform plan
或terraform apply
计划的-replace=ADDRESS
参数来强制重新创建(删除/创建或 -/+):
terraform apply -replace=aws_lightsail_instance_public_ports.myserver-sig-public-ports
This replaces the former workflow of terraform taint <resource_address>
followed by a plan
and apply
.这取代了之前的terraform taint <resource_address>
的工作流程,然后是plan
and apply
。 If you are using an older version of Terraform, then you would need to use taint
instead:如果您使用的是旧版本的 Terraform,那么您需要改用taint
:
terraform taint aws_lightsail_instance_public_ports.myserver-sig-public-ports
You can use the lifecycle replace_triggered_by
attribute to do this.您可以使用生命周期replace_triggered_by
属性来执行此操作。 This was introduced in Terraform 1.2.0 (released May 2022).这是在 Terraform 1.2.0(2022 年 5 月发布)中引入的。
In your case to trigger the replace of aws_lightsail_instance_public_ports.myserver-sig-public-ports
whenever aws_lightsail_instance.myserver-sig
is replaced, add the following code to the aws_lightsail_instance_public_ports.myserver-sig-public-ports
configuration:如果要在替换 aws_lightsail_instance.myserver-sig 时触发aws_lightsail_instance.myserver-sig
aws_lightsail_instance_public_ports.myserver-sig-public-ports
的替换,请将以下代码添加到aws_lightsail_instance_public_ports.myserver-sig-public-ports
配置:
resource "aws_lightsail_instance_public_ports" "myserver-sig-public-ports" {
# ...
lifecycle {
replace_triggered_by = [
aws_lightsail_instance.myserver-sig.id
]
}
}
Thus, whenever the Lightsail instance is replaced, the public ports will automatically be triggered to be replaced.因此,每当替换 Lightsail 实例时,将自动触发公共端口进行替换。
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