Get more insights on workspace image

components/registry-facade/pkg/registry/manifest.go

@@ -12,6 +12,7 @@ import (
 	"io"
 	"mime"
 	"net/http"
+	"strconv"
 	"strings"
 	"time"
 
@@ -185,13 +186,23 @@ func (mh *manifestHandler) getManifest(w http.ResponseWriter, r *http.Request) {
 				return err
 			}
 
+			originImageSize := 0
+			for _, layer := range manifest.Layers {
+				originImageSize += int(layer.Size)
+			}
+
 			// modify config
 			addonLayer, err := mh.ConfigModifier(ctx, mh.Spec, cfg)
 			if err != nil {
 				log.WithError(err).WithFields(logFields).Error("cannot modify config")
 				return err
 			}
 			manifest.Layers = append(manifest.Layers, addonLayer...)
+			if manifest.Annotations == nil {
+				manifest.Annotations = make(map[string]string)
+			}
+			manifest.Annotations["io.gitpod.workspace-image.size"] = strconv.Itoa(originImageSize)
+			manifest.Annotations["io.gitpod.workspace-image.ref"] = mh.Spec.BaseRef
 
 			// place config in store
 			rawCfg, err := json.Marshal(cfg)

components/ws-daemon/go.mod

@@ -82,6 +82,7 @@ require (
 	github.com/containerd/continuity v0.4.2 // indirect
 	github.com/containerd/fifo v1.1.0 // indirect
 	github.com/containerd/log v0.1.0 // indirect
+	github.com/containerd/platforms v0.2.1 // indirect
 	github.com/containerd/ttrpc v1.2.2 // indirect
 	github.com/coreos/go-systemd/v22 v22.5.0 // indirect
 	github.com/cyphar/filepath-securejoin v0.2.3 // indirect
@@ -144,7 +145,7 @@ require (
 	github.com/modern-go/reflect2 v1.0.2 // indirect
 	github.com/munnerz/goautoneg v0.0.0-20191010083416-a7dc8b61c822 // indirect
 	github.com/opencontainers/go-digest v1.0.0 // indirect
-	github.com/opencontainers/image-spec v1.1.0-rc2.0.20221005185240-3a7f492d3f1b // indirect
+	github.com/opencontainers/image-spec v1.1.0-rc5 // indirect
 	github.com/opencontainers/selinux v1.11.0 // indirect
 	github.com/pkg/errors v0.9.1 // indirect
 	github.com/pmezard/go-difflib v1.0.0 // indirect

components/ws-daemon/pkg/container/container.go

@@ -8,6 +8,8 @@ import (
 	"context"
 
 	"golang.org/x/xerrors"
+
+	workspacev1 "github.com/gitpod-io/gitpod/ws-manager/api/crd/v1"
 )
 
 // Runtime abstracts over the different container runtimes out there w.r.t. to the features we need from those runtimes
@@ -47,6 +49,8 @@ type Runtime interface {
 
 	// IsContainerdReady returns is the status of containerd.
 	IsContainerdReady(ctx context.Context) (bool, error)
+
+	GetContainerImageInfo(ctx context.Context, id ID) (*workspacev1.WorkspaceImageInfo, error)
 }
 
 var (

components/ws-daemon/pkg/container/containerd.go

@@ -10,6 +10,7 @@ import (
 	"fmt"
 	"path/filepath"
 	"regexp"
+	"strconv"
 	"strings"
 	"sync"
 	"time"
@@ -20,6 +21,8 @@ import (
 	"github.com/containerd/containerd/api/types"
 	"github.com/containerd/containerd/containers"
 	"github.com/containerd/containerd/errdefs"
+	"github.com/containerd/containerd/images"
+	"github.com/containerd/platforms"
 	"github.com/containerd/typeurl/v2"
 	ocispecs "github.com/opencontainers/runtime-spec/specs-go"
 	"github.com/opentracing/opentracing-go"
@@ -28,6 +31,7 @@ import (
 	wsk8s "github.com/gitpod-io/gitpod/common-go/kubernetes"
 	"github.com/gitpod-io/gitpod/common-go/log"
 	"github.com/gitpod-io/gitpod/common-go/tracing"
+	workspacev1 "github.com/gitpod-io/gitpod/ws-manager/api/crd/v1"
 )
 
 const (
@@ -92,6 +96,7 @@ type containerInfo struct {
 	UpperDir    string
 	CGroupPath  string
 	PID         uint32
+	ImageRef    string
 }
 
 // start listening to containerd
@@ -276,6 +281,7 @@ func (s *Containerd) handleNewContainer(c containers.Container) {
 		info.ID = c.ID
 		info.SnapshotKey = c.SnapshotKey
 		info.Snapshotter = c.Snapshotter
+		info.ImageRef = c.Image
 
 		s.cntIdx[c.ID] = info
 		log.WithField("podname", podName).WithFields(log.OWI(info.OwnerID, info.WorkspaceID, info.InstanceID)).WithField("ID", c.ID).Debug("found workspace container - updating label cache")
@@ -480,6 +486,40 @@ func (s *Containerd) ContainerPID(ctx context.Context, id ID) (pid uint64, err e
 	return uint64(info.PID), nil
 }
 
+func (s *Containerd) GetContainerImageInfo(ctx context.Context, id ID) (*workspacev1.WorkspaceImageInfo, error) {
+	info, ok := s.cntIdx[string(id)]
+	if !ok {
+		return nil, ErrNotFound
+	}
+
+	image, err := s.Client.GetImage(ctx, info.ImageRef)
+	if err != nil {
+		return nil, err
+	}
+	size, err := image.Size(ctx)
+	if err != nil {
+		return nil, err
+	}
+
+	wsImageInfo := &workspacev1.WorkspaceImageInfo{
+		TotalSize: size,
+	}
+
+	// Fetch the manifest
+	manifest, err := images.Manifest(ctx, s.Client.ContentStore(), image.Target(), platforms.Default())
+	if err != nil {
+		log.WithError(err).WithField("image", info.ImageRef).Error("Failed to get manifest")
+		return wsImageInfo, nil
+	}
+	if manifest.Annotations != nil {
+		wsImageInfo.WorkspaceImageRef = manifest.Annotations["io.gitpod.workspace-image.ref"]
+		if size, err := strconv.Atoi(manifest.Annotations["io.gitpod.workspace-image.size"]); err == nil {
+			wsImageInfo.WorkspaceImageSize = int64(size)
+		}
+	}
+	return wsImageInfo, nil
+}
+
 func (s *Containerd) IsContainerdReady(ctx context.Context) (bool, error) {
 	if len(s.registryFacadeHost) == 0 {
 		return s.Client.IsServing(ctx)

components/ws-daemon/pkg/controller/suite_test.go

@@ -77,7 +77,7 @@ var _ = BeforeSuite(func() {
 	Expect(err).ToNot(HaveOccurred())
 	ctx, cancel = context.WithCancel(context.Background())
 
-	workspaceCtrl, err = NewWorkspaceController(k8sClient, record.NewFakeRecorder(100), NodeName, secretsNamespace, 5, nil, ctrl_metrics.Registry)
+	workspaceCtrl, err = NewWorkspaceController(k8sClient, record.NewFakeRecorder(100), NodeName, secretsNamespace, 5, nil, ctrl_metrics.Registry, nil)
 	Expect(err).NotTo(HaveOccurred())
 
 	Expect(workspaceCtrl.SetupWithManager(k8sManager)).To(Succeed())

components/ws-daemon/pkg/controller/workspace_controller.go

@@ -61,9 +61,10 @@ type WorkspaceController struct {
 	metrics                 *workspaceMetrics
 	secretNamespace         string
 	recorder                record.EventRecorder
+	runtime                 container.Runtime
 }
 
-func NewWorkspaceController(c client.Client, recorder record.EventRecorder, nodeName, secretNamespace string, maxConcurrentReconciles int, ops WorkspaceOperations, reg prometheus.Registerer) (*WorkspaceController, error) {
+func NewWorkspaceController(c client.Client, recorder record.EventRecorder, nodeName, secretNamespace string, maxConcurrentReconciles int, ops WorkspaceOperations, reg prometheus.Registerer, runtime container.Runtime) (*WorkspaceController, error) {
 	metrics := newWorkspaceMetrics()
 	reg.Register(metrics)
 
@@ -75,6 +76,7 @@ func NewWorkspaceController(c client.Client, recorder record.EventRecorder, node
 		metrics:                 metrics,
 		secretNamespace:         secretNamespace,
 		recorder:                recorder,
+		runtime:                 runtime,
 	}, nil
 }
 
@@ -219,7 +221,30 @@ func (wsc *WorkspaceController) handleWorkspaceRunning(ctx context.Context, ws *
 	span, ctx := opentracing.StartSpanFromContext(ctx, "handleWorkspaceRunning")
 	defer tracing.FinishSpan(span, &err)
 
-	return ctrl.Result{}, wsc.operations.SetupWorkspace(ctx, ws.Name)
+	var imageInfo *workspacev1.WorkspaceImageInfo = nil
+	if ws.Status.ImageInfo == nil {
+		id, err := wsc.runtime.WaitForContainer(ctx, ws.Name)
+		if err != nil {
+			return ctrl.Result{}, fmt.Errorf("failed to wait for container: %w", err)
+		}
+		info, err := wsc.runtime.GetContainerImageInfo(ctx, id)
+		if err != nil {
+			return ctrl.Result{}, fmt.Errorf("failed to get container image info: %w", err)
+		}
+
+		err = retry.RetryOnConflict(retryParams, func() error {
+			if err := wsc.Get(ctx, req.NamespacedName, ws); err != nil {
+				return err
+			}
+			ws.Status.ImageInfo = info
+			return wsc.Status().Update(ctx, ws)
+		})
+		if err != nil {
+			glog.WithFields(ws.OWI()).WithField("workspace", req.NamespacedName).WithField("phase", ws.Status.Phase).Errorf("failed to update workspace with image info: %v", err)
+		}
+		imageInfo = info
+	}
+	return ctrl.Result{}, wsc.operations.SetupWorkspace(ctx, ws.Name, imageInfo)
 }
 
 func (wsc *WorkspaceController) handleWorkspaceStop(ctx context.Context, ws *workspacev1.Workspace, req ctrl.Request) (result ctrl.Result, err error) {

components/ws-daemon/pkg/controller/workspace_operations.go

@@ -6,6 +6,7 @@ package controller
 
 import (
 	"context"
+	"encoding/json"
 	"errors"
 	"fmt"
 	"io/fs"
@@ -22,6 +23,7 @@ import (
 	"github.com/gitpod-io/gitpod/content-service/pkg/storage"
 	"github.com/gitpod-io/gitpod/ws-daemon/pkg/content"
 	"github.com/gitpod-io/gitpod/ws-daemon/pkg/internal/session"
+	workspacev1 "github.com/gitpod-io/gitpod/ws-manager/api/crd/v1"
 	"github.com/opentracing/opentracing-go"
 	"github.com/prometheus/client_golang/prometheus"
 	"github.com/sirupsen/logrus"
@@ -71,7 +73,7 @@ type WorkspaceOperations interface {
 	// Snapshot takes a snapshot of the workspace
 	Snapshot(ctx context.Context, instanceID, snapshotName string) (err error)
 	// Setup ensures that the workspace has been setup
-	SetupWorkspace(ctx context.Context, instanceID string) error
+	SetupWorkspace(ctx context.Context, instanceID string, imageInfo *workspacev1.WorkspaceImageInfo) error
 }
 
 type DefaultWorkspaceOperations struct {
@@ -211,12 +213,15 @@ func (wso *DefaultWorkspaceOperations) creator(owner, workspaceID, instanceID st
 	}
 }
 
-func (wso *DefaultWorkspaceOperations) SetupWorkspace(ctx context.Context, instanceID string) error {
-	_, err := wso.provider.GetAndConnect(ctx, instanceID)
+func (wso *DefaultWorkspaceOperations) SetupWorkspace(ctx context.Context, instanceID string, imageInfo *workspacev1.WorkspaceImageInfo) error {
+	ws, err := wso.provider.GetAndConnect(ctx, instanceID)
 	if err != nil {
 		return fmt.Errorf("cannot setup workspace %s: %w", instanceID, err)
 	}
-
+	err = wso.writeImageInfo(ctx, ws, imageInfo)
+	if err != nil {
+		glog.WithError(err).WithFields(ws.OWI()).Error("cannot write image info")
+	}
 	return nil
 }
 
@@ -513,6 +518,26 @@ func (wso *DefaultWorkspaceOperations) uploadWorkspaceContent(ctx context.Contex
 	return nil
 }
 
+func (wso *DefaultWorkspaceOperations) writeImageInfo(_ context.Context, ws *session.Workspace, imageInfo *workspacev1.WorkspaceImageInfo) error {
+	if imageInfo == nil {
+		return nil
+	}
+
+	b, err := json.Marshal(imageInfo)
+	if err != nil {
+		return fmt.Errorf("cannot marshal image info: %w", err)
+	}
+	uid := (wsinit.GitpodUID + 100000 - 1)
+	gid := (wsinit.GitpodGID + 100000 - 1)
+	fp := filepath.Join(ws.Location, ".gitpod/image")
+	err = os.WriteFile(fp, b, 0644)
+	if err != nil {
+		return fmt.Errorf("cannot write image info: %w", err)
+	}
+	os.Chown(fp, uid, gid)
+	return nil
+}
+
 func retryIfErr(ctx context.Context, attempts int, log *logrus.Entry, op func(ctx context.Context) error) (err error) {
 	//nolint:ineffassign
 	span, ctx := opentracing.StartSpanFromContext(ctx, "retryIfErr")

components/ws-daemon/pkg/daemon/daemon.go

@@ -214,7 +214,7 @@ func NewDaemon(config Config) (*Daemon, error) {
 	}
 
 	wsctrl, err := controller.NewWorkspaceController(
-		mgr.GetClient(), mgr.GetEventRecorderFor("workspace"), nodename, config.Runtime.SecretsNamespace, config.WorkspaceController.MaxConcurrentReconciles, workspaceOps, wrappedReg)
+		mgr.GetClient(), mgr.GetEventRecorderFor("workspace"), nodename, config.Runtime.SecretsNamespace, config.WorkspaceController.MaxConcurrentReconciles, workspaceOps, wrappedReg, containerRuntime)
 	if err != nil {
 		return nil, err
 	}

components/ws-manager-api/go/crd/v1/workspace_types.go

@@ -168,6 +168,17 @@ func (ps PortSpec) Equal(other PortSpec) bool {
 	return true
 }
 
+type WorkspaceImageInfo struct {
+	// +kubebuilder:validation:Required
+	TotalSize int64 `json:"totalSize"`
+
+	// +kubebuilder:validation:Optional
+	WorkspaceImageSize int64 `json:"workspaceImageSize,omitempty"`
+
+	// +kubebuilder:validation:Optional
+	WorkspaceImageRef string `json:"workspaceImageRef,omitempty"`
+}
+
 // WorkspaceStatus defines the observed state of Workspace
 type WorkspaceStatus struct {
 	PodStarts  int    `json:"podStarts"`
@@ -193,6 +204,9 @@ type WorkspaceStatus struct {
 	Storage StorageStatus `json:"storage,omitempty"`
 
 	LastActivity *metav1.Time `json:"lastActivity,omitempty"`
+
+	// +kubebuilder:validation:Optional
+	ImageInfo *WorkspaceImageInfo `json:"imageInfo,omitempty"`
 }
 
 func (s *WorkspaceStatus) SetCondition(cond metav1.Condition) {