Terraform variable interpolation with match operator

[Bubunia Patra]

Hi all,

I am exploring a way to check if we have a match operator in variable interpolation. For example:

I want to match the server name and do some action and send the result to the user data script.

abc1, def1, mno1 etc.

I want to check if the variable matches with any of the pattern as above then pass the value.

How can we achieve this using terraform? 

Regards

Pradeep

[Lowe Schmidt]

Do you mean like the match function? https://www.terraform.io/docs/configuration/interpolation.html#matchkeys-values-keys-searchset- 

--

Lowe Schmidt | +46 723 867 157

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[Bubunia Patra]

yes. could you please provide me a example. I tried this and it doesn't work.

locals {

  trusted_sources = [

   {

      cidr = "255.255.255.255/32"

      desc = "test office 2"

      type = "office"

    },

    {

       cidr = "255.255.255.254/32"

      desc = "test office 1"

      type = "office"

    },

    {

      cidr = "255.255.255.253/32"

      desc = "test vpn"

      type = "vpn"

    },

  ]

}

data "null_data_source" "test" {

  count = "${length(locals.trusted_sources)}"

  inputs = {

    type = "${ lookup(locals.trusted_sources[count.index], "type", "") }"

    cidr = "${ lookup(locals.trusted_sources[count.index], "cidr", "") }"

    desc = "${ lookup(locals.trusted_sources[count.index], "desc", "") }"

  }

}

output "offices" {

  value = "${ matchkeys(data.null_data_source.test.*.outputs, data.null_data_source.test.*.outputs.type, list("office"))}"

}

On Thursday, April 5, 2018 at 4:57:54 PM UTC+8, Lowe Schmidt wrote:

Do you mean like the match function? https://www.terraform.io/docs/configuration/interpolation.html#matchkeys-values-keys-searchset- 

--

Lowe Schmidt | +46 723 867 157

On 5 April 2018 at 08:03, Bubunia Patra <bubunia...@gmail.com> wrote:

Hi all,

I am exploring a way to check if we have a match operator in variable interpolation. For example:

I want to match the server name and do some action and send the result to the user data script.

abc1, def1, mno1 etc.

I want to check if the variable matches with any of the pattern as above then pass the value.

How can we achieve this using terraform? 

Regards

Pradeep

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IRC: #terraform-tool on Freenode
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