create two aws_route53_record in different regions

[Mike Christofilopoulos]

Hi all,

I got the following resource

```

resource "aws_route53_record" "cdn-aws-region" {

    count = "${length(split(",", var.regions))}"

    zone_id = "${var.zone_id}"

    name = "${format("%s-cdn.%s%s", lower(var.continent), var.prefix, var.domain)}"

    type = "CNAME"

    ttl = "300"

    set_identifier = "${var.set_identifier}"

    records = [

        "${format("%s-cdn.%s%s", element(split(",", var.regions), count.index), var.prefix, var.domain)}"

    ]

    latency_routing_policy  {

        region = "${element(split(",", var.regions), count.index)}"

    }

}

```

and im trying to use it with this module

```

module "europe" {

    source = "../cdn"

    zone_id = "${aws_route53_zone.collection.zone_id}"

    set_identifier = "Europe"

    continent = "eu"

    regions = "eu-west-1,eu-central-1"

}

```

The problem is that its always creating only the second region entry, for example "eu-central-1", and not both of them.

Is there anything universally wrong that im doing ?

Cheers,

Mike

[Tim Visher]

Hi Mike,

You might want to change your regions var to a list like

regions = ["eu-west-1", "eu-central-1"]

Then you won't have to do the split trickery.

Other than that I don't see anything obviously wrong with what you're doing. And even that isn't 'wrong' so much as unoptimized.

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[Mike Christofilopoulos]

Thanks for the reply Tim.

I've tried using a list but terraform doesnt like this

with

```

module "europe" {

    source = "../cdn"

    zone_id = "${aws_route53_zone.collection.zone_id}"

    set_identifier = "Europe"

    continent = "eu"

    regions = ["eu-west-1", "eu-central-1"]

}

```

im getting

```

Error configuring: 1 error(s) occurred:

* variable regions in module route53.europe should be type string, got list

```

there is a high chance that im just completely wrong with how im setting things in a different part - im only starting using terraform.

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[Tim Visher]

Ah you have to declare the variable as a list like:

```

variable regions { type = "list" }

```

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[Mike Christofilopoulos]

this helped with the list conversion you suggested, but the problem still remains. I've attached terraform output bellow

```

#terraform apply

module.route53.aws_route53_zone.collection: Refreshing state... (ID: AAAX0123UAACCC)

module.route53.europe.aws_route53_record.cdn-region: Refreshing state... (ID: AAAX0123UAACCC_cdn_CNAME_Europe)

module.route53.europe.aws_route53_record.cdn-aws-region.0: Refreshing state... (ID: AAAX0123UAACCC_eu-cdn.tf-domain.net_CNAME_Europe)

module.route53.europe.aws_route53_record.cdn-aws-region.1: Refreshing state... (ID: AAAX0123UAACCC_eu-cdn.tf-domain.net_CNAME_Europe)

module.route53.europe.aws_route53_record.cdn-aws-region.1: Modifying...

  latency_routing_policy.0.region: "eu-central-1" => "eu-west-1"

  records.1777403104:              "" => "eu-west-1-cdn.tf-domain.net"

  records.355646978:               "eu-central-1-cdn.tf-domain.net" => ""

```

Thats with regions = ["eu-central-1", "eu-west-1"]

If i switch the order, then the same route53 entry is changed to eu-central-1.

[Tim Visher]

Interesting. I wouldn't expect this to be the case but we are currently storing count variables for this exact purpose. I would expect length to work in this instance but we're not using it and our code is succeeding. ¯\_(ツ)_/¯

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[Mike Christofilopoulos]

im not sure how that would work if you dont specify the count (i've added a sample bellow).

Is that what you got ?

I've tried that w/o any success.

```

resource "aws_route53_record" "cdn-aws-region" {

    #count = "${length(var.regions)}"

    zone_id = "${var.zone_id}"

    name = "${format("%s-cdn.%s%s", lower(var.continent), var.prefix, var.domain)}"

    type = "CNAME"

    ttl = "300"

    set_identifier = "${var.set_identifier}"

    records = [

        "${format("%s-cdn.%s%s", element(var.regions, count.index), var.prefix, var.domain)}"

    ]

    latency_routing_policy  {

        region = "${element(var.regions, count.index)}"

    }

}

```

[Tim Visher]

Sorry I mean I have something like:

```

resource "aws_route53_record" "charnock" {

  count = "${var.charnock_instance_count}"

  zone_id = "${var.box_dns_zone_id}"

  name = "${element(data.template_file.charnock_dns_entry.*.rendered, count.index)}"

  type = "A"

  ttl = 60

  records = ["${element(aws_opsworks_instance.charnock.*.private_ip, count.index)}"]

}

```

See the `var.charnock_instance_count` variable? So we explicitly count them rather than relying on a length interpolation.

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[Mike Christofilopoulos]

no luck with the hardcoded count :(

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[Tim Visher]

Sorry. Not sure what else to tell you. :(

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[Mike Christofilopoulos]

Thanks to this[1] i found out that the `set_identifier` needs to have a different value for each region.

```

resource "aws_route53_record" "cdn-aws-region" {

    count = "${length(var.regions)}"

    zone_id = "${var.zone_id}"

    name = "${format("%s-cdn.%s%s", lower(var.continent), var.prefix, var.domain)}"

    type = "CNAME"

    ttl = "300"

    set_identifier = "${format("%s-%s", var.set_identifier, element(var.regions, count.index))}"

    records = [

        "${format("%s-cdn.%s%s", element(var.regions, count.index), var.prefix, var.domain)}"

    ]

    latency_routing_policy  {

        region = "${element(var.regions, count.index)}"

    }

}

```

[1] https://github.com/hashicorp/terraform/issues/330#issuecomment-239817336

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