allow the dns_ns_record_set data source to query a particular nameserver

[dmildh]

Description

It would be useful to allow the dns_ns_record_set data source to query custom nameserver(s) of your choosing for times you need to override your client's dns configuration. For example when working on my company's vpn our dns is forced to use our local dns but the answer can only come from our corporate dns server for a internally delegate dns zone

New or Affected Resource(s)

• dns_ns_record_set data

Potential Terraform Configuration

data "dns_ns_record_set" "domain_ns_names" {
  host = asubdomain.somedomain.com
  nameservers = ["8.8.8.8"] # custom nameserver(s) to query
}

[herrsorgenfrei]

Currently the dns-provider can be configured using the update-block - but as the name states correctly this configuration is only taken for updates. It would be nice if you could state a query-block on the configuration that defines the nameserver to query the dns-entries from.
What do you think?

[dmildh]

Currently the dns-provider can be configured using the update-block - but as the name states correctly this configuration is only taken for updates. It would be nice if you could state a query-block on the configuration that defines the nameserver to query the dns-entries from. What do you think?

Yeah that's along the lines of what I was thinking. Just needs to be queried from this name server during the stack run.

[cunneen]

I needed functionality similar to this, so I've published a module that does it. The catch is that it requires a DNS-over-HTTPS JSON API e.g. like that provided by Google, Cloudflare, Alibaba, NextDNS etc.

Example:

• Use Cloudflare to lookup Apple's NS records

  module "http-json" {
    source             = "cunneen/http-json/dns"
    name               = "apple.com"
    type               = "NS"
    endpoint           = "https://cloudflare-dns.com/dns-query"
    headers = {
      accept = "application/dns-json"
    }
  }

  Response:

  "dns_response" = {
    "AD" = false
    "Answer" = [
      {
        "TTL" = 35116
        "data" = "a.ns.apple.com."
        "name" = "apple.com"
        "type" = 2
      },
      {
        "TTL" = 35116
        "data" = "b.ns.apple.com."
        "name" = "apple.com"
        "type" = 2
      },
      {
        "TTL" = 35116
        "data" = "c.ns.apple.com."
        "name" = "apple.com"
        "type" = 2
      },
      {
        "TTL" = 35116
        "data" = "d.ns.apple.com."
        "name" = "apple.com"
        "type" = 2
      },
    ]
    "CD" = false
    "Question" = [
      {
        "name" = "apple.com"
        "type" = 2
      },
    ]
    "RA" = true
    "RD" = true
    "Status" = 0
    "TC" = false
  }