Bridge upgrade failures related to terraform-exec/tfinstall

[t0yv0]

What happened?

Last round of automated bridge updates ran into trouble with the following repositories with a very similar looking go build failure:

Tasks

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1. Workflow failure: Upgrade bridge pulumi-splunk#273
   kind/engineering p1 resolution/fixed +3
   
2. Workflow failure: Upgrade bridge pulumi-github#559
   kind/engineering p1 resolution/fixed +3
   
3. Workflow failure: Upgrade bridge pulumi-consul#344
   kind/engineering p1 resolution/fixed +3
   
4. Workflow failure: Upgrade bridge pulumi-cloudamqp#357
   kind/engineering p1 resolution/fixed +3
   
5. Workflow failure: Upgrade bridge pulumi-alicloud#576
   kind/engineering p1 resolution/fixed +3
   

The listed repositories are not on the latest bridge.

Example

See above.

Output of pulumi about

N/A

Additional context

N/A

Contributing

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[iwahbe]

This is caused by upstream providers using a newer version of terraform-exec. terraform-exec removed tfinstall in v0.16.0, so forcing an upgrade of terraform-exec causes the problem. The solution is to pin terraform-exec to v0.15.0, as we already do in some providers: https://github.com/pulumi/pulumi-akamai/blob/a3b2b1a0523c580e664c0bd092afb9e53d2cc950/provider/go.mod#L12.

[iwahbe]

I'm resolving these manually for now to finish the bridge upgrade. I don't think we need to address these in an automated way. The issue only effects providers that are using terraform-plugin-sdk (v1).