Improve hydra error messages

This will bubble hydra errors to users whihc might make it easier to understand misconfigurations

apps/core/lib/core/clients/hydra.ex

@@ -129,7 +129,7 @@ defmodule Core.Clients.Hydra do
     do: {:ok, Poison.decode!(body, as: type)}
   defp handle_response(error, _) do
     Logger.error "Failed to call hydra: #{inspect(error)}"
-    {:error, :unauthorized}
+    {:error, hydra_error(error)}
   end
 
   defp user_details(user) do
@@ -156,5 +156,9 @@ defmodule Core.Clients.Hydra do
 
   defp conf(key), do: Application.get_env(:core, __MODULE__)[key]
 
+  defp hydra_error({:error, _}), do: "internal network error"
+  defp hydra_error({:ok, %HTTPoison.Response{status_code: code, body: body}}),
+    do: "hydra error: code=#{code}, body=#{body}"
+
   defp headers(), do: [{"accept", "application/json"}, {"content-type", "application/json"}]
 end

apps/core/test/services/cloud/workflow_test.exs

@@ -1,5 +1,5 @@
 defmodule Core.Services.Cloud.WorkflowTest do
-  use Core.SchemaCase, async: true
+  use Core.SchemaCase, async: false
   use Mimic
   alias Core.Clients.Console
   alias Core.Services.{Cloud, Cloud.Workflow}
@@ -28,6 +28,7 @@ defmodule Core.Services.Cloud.WorkflowTest do
       expect(Req, :post, fn _, [graphql: {_, %{clusterId: ^cluster_id}}] ->
         {:ok, %Req.Response{status: 200, body: %{"data" => %{"createServiceDeployment" => %{"id" => Ecto.UUID.generate()}}}}}
       end)
+      expect(DNS, :resolve, fn _ -> {:ok, ['some-ip']} end)
 
       {:ok, %{external_id: svc_id} = instance} = Workflow.provision(instance)
 

apps/core/test/test_helper.exs

@@ -19,6 +19,7 @@ Mimic.copy(Core.Buffers.TokenAudit)
 Mimic.copy(Core.Clients.Hydra)
 Mimic.copy(Cloudflare.DnsRecord)
 Mimic.copy(Kazan)
+Mimic.copy(DNS)
 Mimic.copy(Goth.Token)
 Mimic.copy(GoogleApi.CloudBilling.V1.Api.Projects)
 Mimic.copy(GoogleApi.CloudResourceManager.V3.Api.Projects)