Add image pruning support

pkg/api/graph/graph.go

@@ -9,7 +9,7 @@ import (
 )
 
 type Node struct {
-	concrete.Node
+	graph.Node
 	UniqueName
 }
 
@@ -23,6 +23,10 @@ type uniqueNamer interface {
 	UniqueName() string
 }
 
+type NodeFinder interface {
+	Find(name UniqueName) graph.Node
+}
+
 // UniqueNodeInitializer is a graph that allows nodes with a unique name to be added without duplication.
 // If the node is newly added, true will be returned.
 type UniqueNodeInitializer interface {
@@ -44,6 +48,7 @@ type MutableUniqueGraph interface {
 	graph.Mutable
 	MutableDirectedEdge
 	UniqueNodeInitializer
+	NodeFinder
 }
 
 type Edge struct {
@@ -294,6 +299,13 @@ func (g uniqueNamedGraph) FindOrCreate(name UniqueName, fn NodeInitializerFunc)
 	return node, false
 }
 
+func (g uniqueNamedGraph) Find(name UniqueName) graph.Node {
+	if node, ok := g.names[name]; ok {
+		return node
+	}
+	return nil
+}
+
 type typedGraph struct{}
 
 type stringer interface {

pkg/api/graph/graph_test.go

@@ -190,7 +190,8 @@ func TestGraph(t *testing.T) {
 			}
 			bc++
 		case *image.ImageStream:
-			if g.Kind(node) != ImageStreamGraphKind {
+			// TODO resolve this check for 2 kinds, since both have the same object type
+			if g.Kind(node) != ImageStreamGraphKind && g.Kind(node) != ImageStreamTagGraphKind {
 				t.Fatalf("unexpected kind: %v", g.Kind(node))
 			}
 			ir++

pkg/api/graph/types.go

@@ -18,12 +18,17 @@ import (
 
 const (
 	UnknownGraphKind = iota
-	ImageStreamGraphKind
+	ImageStreamTagGraphKind
 	DockerRepositoryGraphKind
 	BuildConfigGraphKind
 	DeploymentConfigGraphKind
 	SourceRepositoryGraphKind
 	ServiceGraphKind
+	ImageGraphKind
+	PodGraphKind
+	ImageStreamGraphKind
+	ReplicationControllerGraphKind
+	ImageLayerGraphKind
 )
 const (
 	UnknownGraphEdgeKind = iota
@@ -34,6 +39,9 @@ const (
 	BuildOutputGraphEdgeKind
 	UsedInDeploymentGraphEdgeKind
 	ExposedThroughServiceGraphEdgeKind
+	ReferencedImageGraphEdgeKind
+	WeakReferencedImageGraphEdgeKind
+	ReferencedImageLayerGraphKind
 )
 
 type ServiceNode struct {
@@ -117,7 +125,7 @@ func (n ImageStreamTagNode) String() string {
 }
 
 func (*ImageStreamTagNode) Kind() int {
-	return ImageStreamGraphKind
+	return ImageStreamTagGraphKind
 }
 
 type DockerImageRepositoryNode struct {
@@ -157,6 +165,50 @@ func (SourceRepositoryNode) Kind() int {
 	return SourceRepositoryGraphKind
 }
 
+type ImageNode struct {
+	Node
+	Image *image.Image
+}
+
+func (n ImageNode) Object() interface{} {
+	return n.Image
+}
+
+func (n ImageNode) String() string {
+	return fmt.Sprintf("<image %s>", n.Image.Name)
+}
+
+func (*ImageNode) Kind() int {
+	return ImageGraphKind
+}
+
+func Image(g MutableUniqueGraph, img *image.Image) graph.Node {
+	return EnsureUnique(g,
+		UniqueName(fmt.Sprintf("%d|%s", ImageGraphKind, img.Name)),
+		func(node Node) graph.Node {
+			return &ImageNode{node, img}
+		},
+	)
+}
+
+func FindImage(g MutableUniqueGraph, imageName string) graph.Node {
+	return g.Find(UniqueName(fmt.Sprintf("%d|%s", ImageGraphKind, imageName)))
+}
+
+type PodNode struct {
+	Node
+	Pod *kapi.Pod
+}
+
+func Pod(g MutableUniqueGraph, pod *kapi.Pod) graph.Node {
+	return EnsureUnique(g,
+		UniqueName(fmt.Sprintf("%d|%s/%s", PodGraphKind, pod.Namespace, pod.Name)),
+		func(node Node) graph.Node {
+			return &PodNode{node, pod}
+		},
+	)
+}
+
 // Service adds the provided service to the graph if it does not already exist. It does not
 // link the service to covered nodes (that is a separate method).
 func Service(g MutableUniqueGraph, svc *kapi.Service) graph.Node {
@@ -216,14 +268,14 @@ func SourceRepository(g MutableUniqueGraph, source build.BuildSource) (graph.Nod
 	), true
 }
 
-// ImageStreamTag adds a graph node for the specific tag in an Image Repository if it
+// ImageStreamTag adds a graph node for the specific tag in an Image Stream if it
 // does not already exist.
 func ImageStreamTag(g MutableUniqueGraph, namespace, name, tag string) graph.Node {
 	if len(tag) == 0 {
 		tag = image.DefaultImageTag
 	}
 	return EnsureUnique(g,
-		UniqueName(fmt.Sprintf("%d|%s/%s:%s", ImageStreamGraphKind, namespace, name, tag)),
+		UniqueName(fmt.Sprintf("%d|%s/%s:%s", ImageStreamTagGraphKind, namespace, name, tag)),
 		func(node Node) graph.Node {
 			return &ImageStreamTagNode{node, &image.ImageStream{
 				ObjectMeta: kapi.ObjectMeta{
@@ -444,3 +496,84 @@ func defaultNamespace(value, defaultValue string) string {
 	}
 	return value
 }
+
+type ImageStreamNode struct {
+	Node
+	*image.ImageStream
+}
+
+func (n ImageStreamNode) Object() interface{} {
+	return n.ImageStream
+}
+
+func (n ImageStreamNode) String() string {
+	return fmt.Sprintf("<image stream %s/%s>", n.Namespace, n.Name)
+}
+
+func (*ImageStreamNode) Kind() int {
+	return ImageStreamGraphKind
+}
+
+// ImageStream adds a graph node for the Image Stream if it does not already exist.
+func ImageStream(g MutableUniqueGraph, stream *image.ImageStream) graph.Node {
+	return EnsureUnique(g,
+		UniqueName(fmt.Sprintf("%d|%s/%s", ImageStreamGraphKind, stream.Namespace, stream.Name)),
+		func(node Node) graph.Node {
+			return &ImageStreamNode{node, stream}
+		},
+	)
+}
+
+type ReplicationControllerNode struct {
+	Node
+	*kapi.ReplicationController
+}
+
+func (n ReplicationControllerNode) Object() interface{} {
+	return n.ReplicationController
+}
+
+func (n ReplicationControllerNode) String() string {
+	return fmt.Sprintf("<replication controller %s/%s>", n.Namespace, n.Name)
+}
+
+func (*ReplicationControllerNode) Kind() int {
+	return ReplicationControllerGraphKind
+}
+
+// ReplicationController adds a graph node for the ReplicationController if it does not already exist.
+func ReplicationController(g MutableUniqueGraph, rc *kapi.ReplicationController) graph.Node {
+	return EnsureUnique(g,
+		UniqueName(fmt.Sprintf("%d|%s/%s", ReplicationControllerGraphKind, rc.Namespace, rc.Name)),
+		func(node Node) graph.Node {
+			return &ReplicationControllerNode{node, rc}
+		},
+	)
+}
+
+type ImageLayerNode struct {
+	Node
+	Layer string
+}
+
+func (n ImageLayerNode) Object() interface{} {
+	return n.Layer
+}
+
+func (n ImageLayerNode) String() string {
+	return fmt.Sprintf("<image layer %s>", n.Layer)
+}
+
+func (*ImageLayerNode) Kind() int {
+	return ImageLayerGraphKind
+}
+
+// ImageLayer adds a graph node for the layer if it does not already exist.
+func ImageLayer(g MutableUniqueGraph, layer string) graph.Node {
+	return EnsureUnique(g,
+		UniqueName(fmt.Sprintf("%d|%s", ImageLayerGraphKind, layer)),
+		func(node Node) graph.Node {
+			return &ImageLayerNode{node, layer}
+		},
+	)
+}

pkg/client/fake_imagestreams.go

@@ -28,13 +28,13 @@ func (c *FakeImageStreams) Get(name string) (*imageapi.ImageStream, error) {
 	return obj.(*imageapi.ImageStream), err
 }
 
-func (c *FakeImageStreams) Create(repo *imageapi.ImageStream) (*imageapi.ImageStream, error) {
+func (c *FakeImageStreams) Create(stream *imageapi.ImageStream) (*imageapi.ImageStream, error) {
 	obj, err := c.Fake.Invokes(FakeAction{Action: "create-imagestream"}, &imageapi.ImageStream{})
 	return obj.(*imageapi.ImageStream), err
 }
 
-func (c *FakeImageStreams) Update(repo *imageapi.ImageStream) (*imageapi.ImageStream, error) {
-	obj, err := c.Fake.Invokes(FakeAction{Action: "update-imagestream"}, &imageapi.ImageStream{})
+func (c *FakeImageStreams) Update(stream *imageapi.ImageStream) (*imageapi.ImageStream, error) {
+	obj, err := c.Fake.Invokes(FakeAction{Action: "update-imagestream", Value: stream}, stream)
 	return obj.(*imageapi.ImageStream), err
 }
 
@@ -47,3 +47,8 @@ func (c *FakeImageStreams) Watch(label labels.Selector, field fields.Selector, r
 	c.Fake.Actions = append(c.Fake.Actions, FakeAction{Action: "watch-imagestreams"})
 	return nil, nil
 }
+
+func (c *FakeImageStreams) UpdateStatus(stream *imageapi.ImageStream) (result *imageapi.ImageStream, err error) {
+	obj, err := c.Fake.Invokes(FakeAction{Action: "update-status-imagestream", Value: stream}, stream)
+	return obj.(*imageapi.ImageStream), err
+}

pkg/client/imagestreams.go

@@ -21,6 +21,7 @@ type ImageStreamInterface interface {
 	Update(stream *imageapi.ImageStream) (*imageapi.ImageStream, error)
 	Delete(name string) error
 	Watch(label labels.Selector, field fields.Selector, resourceVersion string) (watch.Interface, error)
+	UpdateStatus(stream *imageapi.ImageStream) (*imageapi.ImageStream, error)
 }
 
 // ImageStreamNamespaceGetter exposes methods to get ImageStreams by Namespace
@@ -100,3 +101,10 @@ func (c *imageStreams) Watch(label labels.Selector, field fields.Selector, resou
 		FieldsSelectorParam(field).
 		Watch()
 }
+
+// UpdateStatus updates the image stream's status. Returns the server's representation of the image stream, and an error, if it occurs.
+func (c *imageStreams) UpdateStatus(stream *imageapi.ImageStream) (result *imageapi.ImageStream, err error) {
+	result = &imageapi.ImageStream{}
+	err = c.r.Put().Namespace(c.ns).Resource("imageStreams").Name(stream.Name).SubResource("status").Body(stream).Do().Into(result)
+	return
+}

pkg/cmd/admin/admin.go

@@ -4,6 +4,7 @@ import (
 	"fmt"
 	"io"
 
+	eximageprune "github.com/openshift/origin/pkg/cmd/experimental/imageprune"
 	"github.com/spf13/cobra"
 
 	"github.com/openshift/origin/pkg/cmd/cli/cmd"
@@ -47,6 +48,7 @@ func NewCommandAdmin(name, fullName string, out io.Writer) *cobra.Command {
 	cmds.AddCommand(exipfailover.NewCmdIPFailoverConfig(f, fullName, "ipfailover", out))
 	cmds.AddCommand(exrouter.NewCmdRouter(f, fullName, "router", out))
 	cmds.AddCommand(exregistry.NewCmdRegistry(f, fullName, "registry", out))
+	cmds.AddCommand(eximageprune.NewCmdPruneImages(f, fullName, "prune-images", out))
 	cmds.AddCommand(buildchain.NewCmdBuildChain(f, fullName, "build-chain"))
 	cmds.AddCommand(cmd.NewCmdConfig(fullName, "config"))