Add get endpoint for config

lib/vmpooler/api/v1.rb

@@ -855,6 +855,21 @@ module Vmpooler
 
       JSON.pretty_generate(result)
     end
+
+    get "#{api_prefix}/config/?" do
+      content_type :json
+      result = { 'ok' => false }
+      status 404
+
+      if pools
+        result = {
+          'ok' => true,
+          'pool configuration' => pools
+        }
+        status 200
+      end
+      JSON.pretty_generate(result)
+    end
   end
   end
 end

spec/integration/api/v1/config_spec.rb

@@ -156,5 +156,12 @@ describe Vmpooler::API::V1 do
         expect(last_response.body).to eq(JSON.pretty_generate(expected))
       end
     end
+
+    describe 'GET /config' do
+      it 'returns pool configuration when set' do
+        get "#{prefix}/config"
+        expect_json(ok = true, http = 200)
+      end
+    end
   end
 end