terraform
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hashicorp
Replace multiple resource instances with a single -replace=... planning argument
Hey guys,
I've got an AWS instance resource for my workers in a module (mymodule):
resource "aws_instance" "worker" {
count = "12"
...
}
Is it possible to taint all 12 resources? I've tried the following:
❯ terraform taint -module=mymodule "aws_instance.worker.*"
The resource aws_instance.worker.* couldn't be found in the module root.mymodule.
Rather than having to do this:
❯ terraform taint -module=mymodule "aws_instance.worker.0"
The resource aws_instance.worker.0 in the module root.mymodule has been marked as tainted!
❯ terraform taint -module=mymodule "aws_instance.worker.1"
The resource aws_instance.worker.1 in the module root.mymodule has been marked as tainted!
...
Cheers, Alex
This seems like it wouldn't be too hard to implement.
The code that finds the resource to taint is here: https://github.com/hashicorp/terraform/blob/6f9a358cc432e1b29da00ff364f741293743ff75/command/taint.go#L94
If there were a rule that the wildcard can only be a * and it may only be the entirety of the last part of the resource path (so e.g. no aws_instance.foo* or *.baz) then this would just entail iterating over the mod.Resources map looking for keys that have the right prefix.
has there been any progress on this? this would be very helpful for us at Box.
If wildcard is difficult to implement, then an intermediate improvement would be to allow taint on multiple resource at a time. This would let us take advantage of shell expansion and do stuff like
terraform taint aws_instance.worker.{1..12} <- does not work
