Terraform-provider-vault: [Bug/regression] Read vault_approle_auth_backend_role crashes for Vault 0.10.0

[syndbg]

Terraform Version

Terraform v0.11.7

Vault version

Vault v0.10.0 ('5dd7f25f5c4b541f2da62d70075b6f82771a650d')

Affected Resource(s)

• vault_approle_auth_backend_role

Terraform Configuration Files

provider "vault" {
  # NOTE: For example sake, this is a Vault container.
  address = "http://192.168.99.100:30002"
  token = "test"
}

resource "vault_auth_backend" "approle" {
  type = "approle"
}

resource "vault_policy" "newrelic" {
  name = "newrelic"
  policy = <<EOT
path "secret/external/newrelic/*" {
  policy = "read"
}
EOT
}

resource "vault_policy" "transactions" {
  name = "transactions"
  policy = <<EOT
path "secret/transactions/*" {
  policy = "read"
}
EOT
}

resource "vault_approle_auth_backend_role" "transactions" {
  role_name = "transactions"
  policies = ["${vault_policy.transactions.name}", "${vault_policy.newrelic.name}"]

  depends_on = ["vault_policy.newrelic", "vault_policy.transactions"]
}

Debug Output

https://gist.github.com/syndbg/ace5e589beacc809d8efb2e6b34e6be4

Panic Output

https://gist.github.com/syndbg/d9b5e4fc287c043b93377bb609d0c42f

Expected Behavior

It must successfully read the approle data returned by Vault and proceed with provision.

Actual Behavior

Crashed during reading of approle data.

Steps to Reproduce

1. terraform apply
2. Write input yes
3. Observe

Important Factoids

This issue is not reproducible for Vault versions 0.8.x and 0.9.x.

However it's 100% of the time reproducible when running the acceptance test suite against a Vault server with version 0.10.0.

References

None at the moment. I'll submit a PR soon.

• https://github.com/terraform-providers/terraform-provider-vault/pull/103 (PR)

[syndbg]

Btw, it was and still is ready for review.

[mishak87]

@paddycarver Could you please release this bugfix?

[chrissam]

I'm facing the same issue. Terraform crashes while running _vault_approle_auth_backend_role_

Terraform v0.11.7
provider.vault v1.1.0
Vault v0.10.1 ('756fdc4587350daf1c65b93647b2cc31a6f119cd')

[lcgkm]

@paddycarver Could you please release this bugfix? v1.1.1 release. Wait for a long time....

[syndbg]

@lcgkm @chrissam @mishak87 Hey, https://github.com/terraform-providers/terraform-provider-vault/releases/tag/v1.1.1 got released. :tada: