Add node update method to client interface

pkg/client/client_test.go

@@ -759,6 +759,27 @@ func TestDeleteMinion(t *testing.T) {
 	c.Validate(t, nil, err)
 }
 
+func TestUpdateMinion(t *testing.T) {
+	requestMinion := &api.Node{
+		ObjectMeta: api.ObjectMeta{
+			Name:            "foo",
+			ResourceVersion: "1",
+		},
+		Spec: api.NodeSpec{
+			Capacity: api.ResourceList{
+				api.ResourceCPU:    resource.MustParse("1000m"),
+				api.ResourceMemory: resource.MustParse("1Mi"),
+			},
+		},
+	}
+	c := &testClient{
+		Request:  testRequest{Method: "PUT", Path: "/minions/foo"},
+		Response: Response{StatusCode: 200, Body: requestMinion},
+	}
+	response, err := c.Setup().Nodes().Update(requestMinion)
+	c.Validate(t, response, err)
+}
+
 func TestNewMinionPath(t *testing.T) {
 	c := &testClient{
 		Request:  testRequest{Method: "DELETE", Path: "/nodes/foo"},

pkg/client/fake_minions.go

@@ -51,3 +51,8 @@ func (c *FakeNodes) Delete(id string) error {
 	c.Fake.Actions = append(c.Fake.Actions, FakeAction{Action: "delete-minion", Value: id})
 	return nil
 }
+
+func (c *FakeNodes) Update(minion *api.Node) (*api.Node, error) {
+	c.Fake.Actions = append(c.Fake.Actions, FakeAction{Action: "update-minion", Value: minion})
+	return &api.Node{}, nil
+}

pkg/client/minions.go

@@ -18,6 +18,7 @@ package client
 
 import (
 	"errors"
+	"fmt"
 
 	"github.com/GoogleCloudPlatform/kubernetes/pkg/api"
 )
@@ -31,6 +32,7 @@ type NodeInterface interface {
 	Create(minion *api.Node) (*api.Node, error)
 	List() (*api.NodeList, error)
 	Delete(name string) error
+	Update(*api.Node) (*api.Node, error)
 }
 
 // nodes implements NodesInterface
@@ -44,14 +46,15 @@ func newNodes(c *Client) *nodes {
 	return &nodes{c}
 }
 
+// resourceName returns node's URL resource name based on resource version.
 func (c *nodes) resourceName() string {
 	if preV1Beta3(c.r.APIVersion()) {
 		return "minions"
 	}
 	return "nodes"
 }
 
-// Create creates a new minion.
+// Create creates a new node.
 func (c *nodes) Create(minion *api.Node) (*api.Node, error) {
 	result := &api.Node{}
 	err := c.r.Post().Resource(c.resourceName()).Body(minion).Do().Into(result)
@@ -65,7 +68,7 @@ func (c *nodes) List() (*api.NodeList, error) {
 	return result, err
 }
 
-// Get gets an existing minion
+// Get gets an existing node.
 func (c *nodes) Get(name string) (*api.Node, error) {
 	if len(name) == 0 {
 		return nil, errors.New("name is required parameter to Get")
@@ -76,7 +79,18 @@ func (c *nodes) Get(name string) (*api.Node, error) {
 	return result, err
 }
 
-// Delete deletes an existing minion.
+// Delete deletes an existing node.
 func (c *nodes) Delete(name string) error {
 	return c.r.Delete().Resource(c.resourceName()).Name(name).Do().Error()
 }
+
+// Update updates an existing node.
+func (c *nodes) Update(minion *api.Node) (*api.Node, error) {
+	result := &api.Node{}
+	if len(minion.ResourceVersion) == 0 {
+		err := fmt.Errorf("invalid update object, missing resource version: %v", minion)
+		return nil, err
+	}
+	err := c.r.Put().Resource(c.resourceName()).Name(minion.Name).Body(minion).Do().Into(result)
+	return result, err
+}

pkg/master/rest_to_nodes.go

@@ -48,7 +48,7 @@ func (n *nodeAdaptor) Nodes() client.NodeInterface {
 	return n
 }
 
-// Create creates a new minion.
+// Create creates a new node.
 func (n *nodeAdaptor) Create(minion *api.Node) (*api.Node, error) {
 	return nil, errors.New("direct creation not implemented")
 	// TODO: apiserver should expose newOperation to make this easier.
@@ -71,7 +71,7 @@ func (n *nodeAdaptor) List() (*api.NodeList, error) {
 	return obj.(*api.NodeList), nil
 }
 
-// Get gets an existing minion
+// Get gets an existing node.
 func (n *nodeAdaptor) Get(name string) (*api.Node, error) {
 	ctx := api.NewContext()
 	obj, err := n.storage.(apiserver.RESTGetter).Get(ctx, name)
@@ -81,8 +81,13 @@ func (n *nodeAdaptor) Get(name string) (*api.Node, error) {
 	return obj.(*api.Node), nil
 }
 
-// Delete deletes an existing minion.
+// Delete deletes an existing node.
 // TODO: implement
 func (n *nodeAdaptor) Delete(name string) error {
 	return errors.New("direct deletion not implemented")
 }
+
+// Update updates an existing node.
+func (n *nodeAdaptor) Update(minion *api.Node) (*api.Node, error) {
+	return nil, errors.New("direct update not implemented")
+}