orchestrator: allow to register several configuration for a given service

Use the first one by default and if the index is not known. Remove
service registration as this is not used yet.

orchestrator/http_test.go

@@ -24,6 +24,10 @@ func TestConfigurationEndpoint(t *testing.T) {
 		"hello": "Hello world!",
 		"bye":   "Goodbye world!",
 	})
+	c.RegisterConfiguration(InletService, map[string]string{
+		"hello": "Hello pal!",
+		"bye":   "Goodbye pal!",
+	})
 
 	helpers.TestHTTPEndpoints(t, h.Address, helpers.HTTPEndpointCases{
 		{
@@ -33,6 +37,31 @@ func TestConfigurationEndpoint(t *testing.T) {
 				`bye: Goodbye world!`,
 				`hello: Hello world!`,
 			},
+		}, {
+			URL:         "/api/v0/orchestrator/configuration/inlet/0",
+			ContentType: "application/x-yaml; charset=utf-8",
+			FirstLines: []string{
+				`bye: Goodbye world!`,
+				`hello: Hello world!`,
+			},
+		}, {
+			URL:         "/api/v0/orchestrator/configuration/inlet/1",
+			ContentType: "application/x-yaml; charset=utf-8",
+			FirstLines: []string{
+				`bye: Goodbye pal!`,
+				`hello: Hello pal!`,
+			},
+		}, {
+			URL:         "/api/v0/orchestrator/configuration/inlet/2",
+			ContentType: "application/x-yaml; charset=utf-8",
+			FirstLines: []string{
+				`bye: Goodbye world!`,
+				`hello: Hello world!`,
+			},
+		}, {
+			URL:         "/api/v0/orchestrator/configuration/console/0",
+			ContentType: "application/json; charset=utf-8",
+			StatusCode:  404,
 		},
 	})
 }