Generic service type handler for kompose

Moved label handling code from Transformer to loader,
to make it generic to handle creating service types.

Added new attribute to ServiceConfig which gets populated
in loader.

Fixes #273

pkg/transformer/kubernetes/k8sutils.go

@@ -244,21 +244,7 @@ func (k *Kubernetes) CreateService(name string, service kobject.ServiceConfig, o
 	servicePorts := k.ConfigServicePorts(name, service)
 	svc.Spec.Ports = servicePorts
 
-	// Configure service types
-	for key, value := range service.Annotations {
-		if key == "kompose.service.type" {
-			if strings.ToLower(value) == "nodeport" {
-				svc.Spec.Type = "NodePort"
-			} else if strings.ToLower(value) == "clusterip" {
-				svc.Spec.Type = "ClusterIP"
-			} else if strings.ToLower(value) == "loadbalancer" {
-				svc.Spec.Type = "LoadBalancer"
-			} else {
-				logrus.Fatalf("Unknown value '%s', supported values are 'NodePort, ClusterIP and LoadBalancer' " , value)
-			}
-		}
-	}
-
+	svc.Spec.Type = api.ServiceType(service.ServiceType)
 	// Configure annotations
 	annotations := transformer.ConfigAnnotations(service)
 	svc.ObjectMeta.Annotations = annotations

pkg/transformer/kubernetes/k8sutils_test.go

@@ -1,5 +1,5 @@
 /*
-Copyright 2016 Skippbox, Ltd All rights reserved.
+Copyright 2016 The Kubernetes Authors All rights reserved.
 
 Licensed under the Apache License, Version 2.0 (the "License");
 you may not use this file except in compliance with the License.
@@ -17,9 +17,10 @@ limitations under the License.
 package kubernetes
 
 import (
+	"testing"
+
 	"github.com/kubernetes-incubator/kompose/pkg/kobject"
 	"k8s.io/kubernetes/pkg/api"
-	"testing"
 )
 
 /*
@@ -64,63 +65,3 @@ func TestCreateService(t *testing.T) {
 		t.Errorf("Expected port 123 upon conversion, actual %d", svc.Spec.Ports[0].Port)
 	}
 }
-
-/*
-	Test the creation of a service with a specified annotation (kompose.service.type) as "nodeport".
-	The expected result is that Kompose will convert the spec type to "NodePort" upon generation.
-*/
-func TestCreateServiceWithServiceTypeNodePort(t *testing.T) {
-
-	// An example service
-	service := kobject.ServiceConfig{
-		ContainerName: "name",
-		Image:         "image",
-		Environment:   []kobject.EnvVar{kobject.EnvVar{Name: "env", Value: "value"}},
-		Port:          []kobject.Ports{kobject.Ports{HostPort: 123, ContainerPort: 456, Protocol: api.ProtocolTCP}},
-		Command:       []string{"cmd"},
-		WorkingDir:    "dir",
-		Args:          []string{"arg1", "arg2"},
-		Volumes:       []string{"/tmp/volume"},
-		Network:       []string{"network1", "network2"}, // not supported
-		Labels:        nil,
-		Annotations:   map[string]string{"kompose.service.type": "nodeport"},
-		CPUSet:        "cpu_set",            // not supported
-		CPUShares:     1,                    // not supported
-		CPUQuota:      1,                    // not supported
-		CapAdd:        []string{"cap_add"},  // not supported
-		CapDrop:       []string{"cap_drop"}, // not supported
-		Expose:        []string{"expose"},   // not supported
-		Privileged:    true,
-		Restart:       "always",
-		User:          "user", // not supported
-	}
-
-	// An example object generated via k8s runtime.Objects()
-	kompose_object := kobject.KomposeObject{
-		ServiceConfigs: map[string]kobject.ServiceConfig{"app": service},
-	}
-	k := Kubernetes{}
-	tests := []struct {
-		labelValue  string
-		serviceType string
-	}{
-		{"NodePort", "NodePort"},
-		{"nodeport", "NodePort"},
-		{"LoadBalancer", "LoadBalancer"},
-		{"loadbalancer", "LoadBalancer"},
-		{"ClusterIP", "ClusterIP"},
-		{"clusterip", "ClusterIP"},
-	}
-
-	for _, tt := range tests {
-		kompose_object.ServiceConfigs["app"].Annotations["kompose.service.type"] = tt.labelValue
-
-		objects := k.Transform(kompose_object, kobject.ConvertOptions{CreateD: true, Replicas: 3})
-
-		// Test the creation of the service with modified annotations (kompose.service.type)
-		svc := k.CreateService("foo", service, objects)
-		if svc.Spec.Type != api.ServiceType(tt.serviceType) {
-			t.Errorf("Expected NodePort, actual %d", svc.Spec.Type)
-		}
-	}
-}