Now that we are on tf version 0.10.0, we should definitely upgrade the remote state for all the environments in the devservices-aws terraform configs. I think I remember doing this with the mozreview terraform configs and it was fairly painless aside from having to back up the statefiles. Deprecation warning: This environment is configured to use legacy remote state. Remote state changed significantly in Terraform 0.9. Please update your remote state configuration to use the new 'backend' settings. For now, Terraform will continue to use your existing settings. Legacy remote state support will be removed in Terraform 0.11. You can find a guide for upgrading here: https://www.terraform.io/docs/backends/legacy-0-8.html
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