terraform validate returns The argument "url" is required, but was not set. on child module with no provider block

[zjanc]

Hi,

I'm getting The argument "url" is required, but was not set. when running terraform validate on a child module that contains ES resources with no provider block set.

Additional Information:

• Terraform version: 0.14.11
• Provider version: 1.6.1

The plan, apply, and import command all work (when run on the calling root module) with the same configuration, it is just validate that is failing.

This error can be fixed by declaring the elasticsearch provider block in the child module but I would like to avoid it to comply with guidelines re: child module provider blocks.

[zjanc]

Closing this issue, seems this was fixed in 0.15:

hashicorp/terraform#21408

Was fixed on current version by setting a fake ELASTICSEARCH_URL environment variable.