Provide a way to "stub" the Terraform provider

[webvictim]

What would you like Teleport to do?

Some Terraform deployment stacks require providers to be declared globally whether they are used as part of the specific module or not.

Teleport's Terraform provider does not currently allow itself to be "stubbed" i.e. used without a valid cluster address and identity file - it requires an addr and identity to be specified in the provider configuration and will attempt to ping them on initialization.

Trying to provide Teleport with a bogus addr (localhost) and identity (/dev/null) causes the provider's startup to fail with an error that it cannot decode the identity file.

We should provide a way to stub/dry-run the provider so that it doesn't try to do anything on startup if it isn't required.

What problem does this solve?

Easier deployment into existing customer architectures.

If a workaround exists, please include it.

None currently known.