data-source/dns_txt_record_set: Large (>512 byte) Records Return Errors #157
Description
Terraform Version
Terraform v1.0.3
on darwin_amd64
Affected Data Source
- dns_txt_record_set
Terraform Configuration Files
data "dns_txt_record_set" "test" {
host = "terraform.io"
}Expected Behavior
Successful data source results, with 7 records.
Actual Behavior
=== RUN TestAccDataDnsTxtRecordSet_Basic
data_dns_txt_record_set_test.go:13: Step 1/1 error: Error running pre-apply refresh: exit status 1
2021/06/24 15:53:58 [DEBUG] Using modified User-Agent: Terraform/0.12.30 HashiCorp-terraform-exec/0.13.3
Error: error looking up TXT records for "terraform.io": lookup terraform.io on 127.0.0.53:53: no such host
on terraform_plugin_test.tf line 2, in data "dns_txt_record_set" "test":
2: data "dns_txt_record_set" "test" {
--- FAIL: TestAccDataDnsTxtRecordSet_Basic (0.59s)
data_dns_txt_record_set_test.go:13: Step 1/1 error: Error running pre-apply refresh: exit status 1
Error: error looking up TXT records for "terraform.io": lookup terraform.io on 192.168.69.1:53: cannot unmarshal DNS message
on terraform_plugin_test.tf line 2, in data "dns_txt_record_set" "test":
2: data "dns_txt_record_set" "test" {
Same occurs across other large TXT records, such as:
- google.com (625 bytes locally)
- hashicorp.com (950 bytes locally)
Steps to Reproduce
go test -count=1 -run=TestAccDataDnsTxtRecordSet_Basic -v ./internal/provideron main (soon to be its own test)
Important Factoids
# Note: MSG SIZE and EDNS being enabled
$ dig TXT terraform.io
; <<>> DiG 9.10.6 <<>> TXT terraform.io
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 13897
;; flags: qr rd ra; QUERY: 1, ANSWER: 7, AUTHORITY: 0, ADDITIONAL: 1
;; OPT PSEUDOSECTION:
; EDNS: version: 0, flags:; udp: 4096
;; QUESTION SECTION:
;terraform.io. IN TXT
;; ANSWER SECTION:
terraform.io. 300 IN TXT "google-site-verification=LQZvxDzrGE-ZLudDpkpj-gcXN-5yF7Z6C-4Rljs3I_Q"
terraform.io. 300 IN TXT "_globalsign-domain-verification=O81xyb7YxpdGeHWkniit_VBT4vTXz9__NFrNMoTwFg"
terraform.io. 300 IN TXT "google-site-verification=y974ACvos30pN7_OBgEZb_byZV8qYtK0G6WZfE7OX8s"
terraform.io. 300 IN TXT "google-site-verification=8d7FpfB8aOEYAIkoaVKxg7Ibj438CEypjZTH424Pews"
terraform.io. 300 IN TXT "google-site-verification=9D7erI6Bfd9EOHKSIXRe0XQaqAFAjToBtZmyYRzMm34"
terraform.io. 300 IN TXT "v=spf1 -all"
terraform.io. 300 IN TXT "keybase-site-verification=5HKqMvJnTWpe8W-Aa8r0y3wuy1bhQ6LwcjaxKE9BOQU"
;; Query time: 22 msec
;; SERVER: 192.168.1.1#53(192.168.1.1)
;; WHEN: Mon Jul 26 09:53:53 EDT 2021
;; MSG SIZE rcvd: 558
# dig will automatically failover to TCP, which Go's stub resolver may not
$ dig +noedns TXT terraform.io
;; Truncated, retrying in TCP mode.
; <<>> DiG 9.10.6 <<>> +noedns TXT terraform.io
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 60177
;; flags: qr rd ra; QUERY: 1, ANSWER: 7, AUTHORITY: 0, ADDITIONAL: 0
;; QUESTION SECTION:
;terraform.io. IN TXT
;; ANSWER SECTION:
terraform.io. 203 IN TXT "_globalsign-domain-verification=O81xyb7YxpdGeHWkniit_VBT4vTXz9__NFrNMoTwFg"
terraform.io. 203 IN TXT "keybase-site-verification=5HKqMvJnTWpe8W-Aa8r0y3wuy1bhQ6LwcjaxKE9BOQU"
terraform.io. 203 IN TXT "google-site-verification=9D7erI6Bfd9EOHKSIXRe0XQaqAFAjToBtZmyYRzMm34"
terraform.io. 203 IN TXT "v=spf1 -all"
terraform.io. 203 IN TXT "google-site-verification=LQZvxDzrGE-ZLudDpkpj-gcXN-5yF7Z6C-4Rljs3I_Q"
terraform.io. 203 IN TXT "google-site-verification=8d7FpfB8aOEYAIkoaVKxg7Ibj438CEypjZTH424Pews"
terraform.io. 203 IN TXT "google-site-verification=y974ACvos30pN7_OBgEZb_byZV8qYtK0G6WZfE7OX8s"
;; Query time: 12 msec
;; SERVER: 192.168.1.1#53(192.168.1.1)
;; WHEN: Mon Jul 26 09:55:30 EDT 2021
;; MSG SIZE rcvd: 547Failures can be influenced by intermediate DNS resolvers changing the response message size.