Add digitalocean_database_pool as data source

[gvangool]

Is your feature request related to a problem? Please describe.

I was looking for a way to get a database pool URL from a terraform resource.

Describe the solution you'd like

I'd want to be able to define:

data "digitalocean_database_pool" "example" {
  cluster_name = "example-cluster"
  pool_name = "pool1"
}

So I can do:

locals {
  conn_str = "postgresql://${data.digitalocean_database_pool.example.username}@${data.digitalocean_database_pool.example.host}:${data.digitalocean_database_pool.example.port}/${data.digitalocean_database_pool.example.database}"
}

Describe alternatives you've considered

I've added the information from the connection pool hardcoded, but it's "one more thing" that needs to be manually updated.

[T-jegou]

Hello @andrewsomething , I tried to fix this issue, can you take a look? Thanks

[gvangool]

Thanks @T-jegou and @danaelhe!

#1073 fixed my use case 👍