go get github.com/hashicorp/terraform-plugin-sdk/v2/diag
go get github.com/hashicorp/terraform-plugin-sdk/v2/helper/schema
go get github.com/hashicorp/terraform-plugin-sdk/v2/plugin
Setup application
make build
make install
Infrastructure-as-Code
Remove prior state and cache files (they could be associated with a different provider version and may cause conflicts)
Navigate to the examples/ directory
cd ./examples
Set environment variables CONCOURSE_USER, CONCOURSE_SECRET, and CONCOURSE_DOMAIN