refactor layer pruning

server/download.go

@@ -24,6 +24,7 @@ import (
 
 	"github.com/ollama/ollama/api"
 	"github.com/ollama/ollama/format"
+	"github.com/ollama/ollama/types/model"
 )
 
 const maxRetries = 6
@@ -451,15 +452,16 @@ func (b *blobDownload) Wait(ctx context.Context, fn func(api.ProgressResponse))
 	}
 }
 
-type downloadOpts struct {
+type downloadOptions struct {
-	mp      ModelPath
+	name    model.Name
+	baseURL *url.URL
 	digest  string
 	regOpts *registryOptions
 	fn      func(api.ProgressResponse)
 }
 
 // downloadBlob downloads a blob from the registry and stores it in the blobs directory
-func downloadBlob(ctx context.Context, opts downloadOpts) (cacheHit bool, _ error) {
+func downloadBlob(ctx context.Context, opts downloadOptions) (cacheHit bool, _ error) {
 	fp, err := GetBlobsPath(opts.digest)
 	if err != nil {
 		return false, err
@@ -484,8 +486,7 @@ func downloadBlob(ctx context.Context, opts downloadOpts) (cacheHit bool, _ erro
 	data, ok := blobDownloadManager.LoadOrStore(opts.digest, &blobDownload{Name: fp, Digest: opts.digest})
 	download := data.(*blobDownload)
 	if !ok {
-		requestURL := opts.mp.BaseURL()
+		requestURL := opts.baseURL.JoinPath("blobs", opts.digest)
-		requestURL = requestURL.JoinPath("v2", opts.mp.GetNamespaceRepository(), "blobs", opts.digest)
 		if err := download.Prepare(ctx, requestURL, opts.regOpts); err != nil {
 			blobDownloadManager.Delete(opts.digest)
 			return false, err

server/images.go

@@ -16,6 +16,7 @@ import (
 	"net/http"
 	"net/url"
 	"os"
+	"path"
 	"path/filepath"
 	"runtime"
 	"slices"
@@ -500,7 +501,7 @@ func CreateModel(ctx context.Context, name model.Name, modelFileDir, quantizatio
 						return false
 					}
 
-					if err := layer.Remove(); err != nil {
+					if err := layer.Prune(); err != nil {
 						return false
 					}
 
@@ -688,152 +689,40 @@ func CopyModel(src, dst model.Name) error {
 	return err
 }
 
-func deleteUnusedLayers(deleteMap map[string]struct{}) error {
+func PushModel(ctx context.Context, name model.Name, opts registryOptions, fn func(api.ProgressResponse)) error {
-	manifests, err := Manifests()
+	m, err := ParseNamedManifest(name)
 	if err != nil {
 		return err
 	}
 
-	for _, manifest := range manifests {
+	scheme := "https"
-		for _, layer := range manifest.Layers {
+	if opts.Insecure {
-			delete(deleteMap, layer.Digest)
+		scheme = "http"
-		}
-
-		delete(deleteMap, manifest.Config.Digest)
 	}
 
-	// only delete the files which are still in the deleteMap
+	baseURL, err := url.Parse(fmt.Sprintf("%s://%s", scheme, path.Join(name.Host, "v2", name.Namespace, name.Model)))
-	for k := range deleteMap {
-		fp, err := GetBlobsPath(k)
-		if err != nil {
-			slog.Info(fmt.Sprintf("couldn't get file path for '%s': %v", k, err))
-			continue
-		}
-		if err := os.Remove(fp); err != nil {
-			slog.Info(fmt.Sprintf("couldn't remove file '%s': %v", fp, err))
-			continue
-		}
-	}
-
-	return nil
-}
-
-func PruneLayers() error {
-	deleteMap := make(map[string]struct{})
-	p, err := GetBlobsPath("")
 	if err != nil {
 		return err
 	}
 
-	blobs, err := os.ReadDir(p)
+	for _, layer := range append(m.Layers, m.Config) {
-	if err != nil {
+		if err := uploadBlob(ctx, uploadOptions{name: name, baseURL: baseURL, layer: layer, regOpts: &opts, fn: fn}); err != nil {
-		slog.Info(fmt.Sprintf("couldn't read dir '%s': %v", p, err))
-		return err
-	}
-
-	for _, blob := range blobs {
-		name := blob.Name()
-		name = strings.ReplaceAll(name, "-", ":")
-
-		_, err := GetBlobsPath(name)
-		if err != nil {
-			if errors.Is(err, ErrInvalidDigestFormat) {
-				// remove invalid blobs (e.g. partial downloads)
-				if err := os.Remove(filepath.Join(p, blob.Name())); err != nil {
-					slog.Error("couldn't remove blob", "blob", blob.Name(), "error", err)
-				}
-			}
-
-			continue
-		}
-
-		deleteMap[name] = struct{}{}
-	}
-
-	slog.Info(fmt.Sprintf("total blobs: %d", len(deleteMap)))
-
-	if err := deleteUnusedLayers(deleteMap); err != nil {
-		slog.Error(fmt.Sprintf("couldn't remove unused layers: %v", err))
-		return nil
-	}
-
-	slog.Info(fmt.Sprintf("total unused blobs removed: %d", len(deleteMap)))
-
-	return nil
-}
-
-func PruneDirectory(path string) error {
-	info, err := os.Lstat(path)
-	if err != nil {
-		return err
-	}
-
-	if info.IsDir() && info.Mode()&os.ModeSymlink == 0 {
-		entries, err := os.ReadDir(path)
-		if err != nil {
-			return err
-		}
-
-		for _, entry := range entries {
-			if err := PruneDirectory(filepath.Join(path, entry.Name())); err != nil {
-				return err
-			}
-		}
-
-		entries, err = os.ReadDir(path)
-		if err != nil {
-			return err
-		}
-
-		if len(entries) > 0 {
-			return nil
-		}
-
-		return os.Remove(path)
-	}
-
-	return nil
-}
-
-func PushModel(ctx context.Context, name string, regOpts *registryOptions, fn func(api.ProgressResponse)) error {
-	mp := ParseModelPath(name)
-	fn(api.ProgressResponse{Status: "retrieving manifest"})
-
-	if mp.ProtocolScheme == "http" && !regOpts.Insecure {
-		return errors.New("insecure protocol http")
-	}
-
-	manifest, _, err := GetManifest(mp)
-	if err != nil {
-		fn(api.ProgressResponse{Status: "couldn't retrieve manifest"})
-		return err
-	}
-
-	var layers []Layer
-	layers = append(layers, manifest.Layers...)
-	if manifest.Config.Digest != "" {
-		layers = append(layers, manifest.Config)
-	}
-
-	for _, layer := range layers {
-		if err := uploadBlob(ctx, mp, layer, regOpts, fn); err != nil {
 			slog.Info(fmt.Sprintf("error uploading blob: %v", err))
 			return err
 		}
 	}
 
 	fn(api.ProgressResponse{Status: "pushing manifest"})
-	requestURL := mp.BaseURL()
+	requestURL := baseURL.JoinPath("manifests", name.Tag)
-	requestURL = requestURL.JoinPath("v2", mp.GetNamespaceRepository(), "manifests", mp.Tag)
 
-	manifestJSON, err := json.Marshal(manifest)
+	manifestJSON, err := json.Marshal(m)
 	if err != nil {
 		return err
 	}
 
 	headers := make(http.Header)
 	headers.Set("Content-Type", "application/vnd.docker.distribution.manifest.v2+json")
-	resp, err := makeRequestWithRetry(ctx, http.MethodPut, requestURL, headers, bytes.NewReader(manifestJSON), regOpts)
+	resp, err := makeRequestWithRetry(ctx, http.MethodPut, requestURL, headers, bytes.NewReader(manifestJSON), &opts)
 	if err != nil {
 		return err
 	}
@@ -844,118 +733,83 @@ func PushModel(ctx context.Context, name string, regOpts *registryOptions, fn fu
 	return nil
 }
 
-func PullModel(ctx context.Context, name string, regOpts *registryOptions, fn func(api.ProgressResponse)) error {
+func PullModel(ctx context.Context, name model.Name, opts *registryOptions, fn func(api.ProgressResponse)) error {
-	mp := ParseModelPath(name)
+	mm, _ := ParseNamedManifest(name)
 
-	// build deleteMap to prune unused layers
+	scheme := "https"
-	deleteMap := make(map[string]struct{})
+	if opts.Insecure {
-	manifest, _, err := GetManifest(mp)
+		scheme = "http"
-	if errors.Is(err, os.ErrNotExist) {
-		// noop
-	} else if err != nil && !errors.Is(err, os.ErrNotExist) {
-		return err
-	} else {
-		for _, l := range manifest.Layers {
-			deleteMap[l.Digest] = struct{}{}
-		}
-		if manifest.Config.Digest != "" {
-			deleteMap[manifest.Config.Digest] = struct{}{}
-		}
 	}
 
-	if mp.ProtocolScheme == "http" && !regOpts.Insecure {
+	baseURL, err := url.Parse(fmt.Sprintf("%s://%s", scheme, path.Join(name.Host, "v2", name.Namespace, name.Model)))
-		return errors.New("insecure protocol http")
+	if err != nil {
+		return err
 	}
 
 	fn(api.ProgressResponse{Status: "pulling manifest"})
-
+	m, err := pullModelManifest(ctx, name, baseURL, opts)
-	manifest, err = pullModelManifest(ctx, mp, regOpts)
 	if err != nil {
 		return fmt.Errorf("pull model manifest: %s", err)
 	}
 
-	var layers []Layer
+	layers := append(m.Layers, m.Config)
-	layers = append(layers, manifest.Layers...)
-	if manifest.Config.Digest != "" {
-		layers = append(layers, manifest.Config)
-	}
 
 	skipVerify := make(map[string]bool)
 	for _, layer := range layers {
-		cacheHit, err := downloadBlob(ctx, downloadOpts{
+		hit, err := downloadBlob(ctx, downloadOptions{
-			mp:      mp,
+			name:    name,
+			baseURL: baseURL,
 			digest:  layer.Digest,
-			regOpts: regOpts,
+			regOpts: opts,
 			fn:      fn,
 		})
 		if err != nil {
 			return err
 		}
-		skipVerify[layer.Digest] = cacheHit
+
-		delete(deleteMap, layer.Digest)
+		skipVerify[layer.Digest] = hit
 	}
-	delete(deleteMap, manifest.Config.Digest)
 
 	fn(api.ProgressResponse{Status: "verifying sha256 digest"})
 	for _, layer := range layers {
-		if skipVerify[layer.Digest] {
+		if !skipVerify[layer.Digest] {
-			continue
+			if err := verifyBlob(layer.Digest); errors.Is(err, errDigestMismatch) {
-		}
-		if err := verifyBlob(layer.Digest); err != nil {
-			if errors.Is(err, errDigestMismatch) {
 				// something went wrong, delete the blob
 				fp, err := GetBlobsPath(layer.Digest)
 				if err != nil {
 					return err
 				}
+
 				if err := os.Remove(fp); err != nil {
 					// log this, but return the original error
 					slog.Info(fmt.Sprintf("couldn't remove file with digest mismatch '%s': %v", fp, err))
 				}
+			} else if err != nil {
+				return err
 			}
-			return err
 		}
 	}
 
 	fn(api.ProgressResponse{Status: "writing manifest"})
-
+	if err := WriteManifest(name, m.Config, m.Layers); err != nil {
-	manifestJSON, err := json.Marshal(manifest)
-	if err != nil {
 		return err
 	}
 
-	fp, err := mp.GetManifestPath()
+	if !envconfig.NoPrune() && mm != nil {
-	if err != nil {
+		fn(api.ProgressResponse{Status: "pruning old layers"})
-		return err
+		_ = mm.RemoveLayers()
-	}
-	if err := os.MkdirAll(filepath.Dir(fp), 0o755); err != nil {
-		return err
-	}
-
-	err = os.WriteFile(fp, manifestJSON, 0o644)
-	if err != nil {
-		slog.Info(fmt.Sprintf("couldn't write to %s", fp))
-		return err
-	}
-
-	if !envconfig.NoPrune() && len(deleteMap) > 0 {
-		fn(api.ProgressResponse{Status: "removing unused layers"})
-		if err := deleteUnusedLayers(deleteMap); err != nil {
-			fn(api.ProgressResponse{Status: fmt.Sprintf("couldn't remove unused layers: %v", err)})
-		}
 	}
 
 	fn(api.ProgressResponse{Status: "success"})
-
 	return nil
 }
 
-func pullModelManifest(ctx context.Context, mp ModelPath, regOpts *registryOptions) (*Manifest, error) {
+func pullModelManifest(ctx context.Context, name model.Name, baseURL *url.URL, opts *registryOptions) (*Manifest, error) {
-	requestURL := mp.BaseURL().JoinPath("v2", mp.GetNamespaceRepository(), "manifests", mp.Tag)
+	requestURL := baseURL.JoinPath("manifests", name.Tag)
 
 	headers := make(http.Header)
 	headers.Set("Accept", "application/vnd.docker.distribution.manifest.v2+json")
-	resp, err := makeRequestWithRetry(ctx, http.MethodGet, requestURL, headers, nil, regOpts)
+	resp, err := makeRequestWithRetry(ctx, http.MethodGet, requestURL, headers, nil, opts)
 	if err != nil {
 		return nil, err
 	}
@@ -1105,6 +959,7 @@ func makeRequest(ctx context.Context, method string, requestURL *url.URL, header
 		return nil, err
 	}
 
+	slog.Debug("request upstream", "method", method, "request", requestURL.Redacted(), "status", resp.StatusCode)
 	return resp, nil
 }
 

server/layer.go

@@ -5,7 +5,10 @@ import (
 	"errors"
 	"fmt"
 	"io"
+	"log/slog"
 	"os"
+	"path/filepath"
+	"strings"
 )
 
 type Layer struct {
@@ -101,7 +104,8 @@ func (l *Layer) Open() (io.ReadSeekCloser, error) {
 	return os.Open(blob)
 }
 
-func (l *Layer) Remove() error {
+// Prune removes the layer from the filesystem if it is not referenced any manifest.
+func (l *Layer) Prune() error {
 	if l.Digest == "" {
 		return nil
 	}
@@ -125,5 +129,41 @@ func (l *Layer) Remove() error {
 		return err
 	}
 
+	slog.Debug("pruning layer", "digest", l.Digest)
 	return os.Remove(blob)
 }
+
+func Layers() (map[string]Layer, error) {
+	blobs, err := GetBlobsPath("")
+	if err != nil {
+		return nil, err
+	}
+
+	// TODO(mxyng): use something less brittle
+	matches, err := filepath.Glob(filepath.Join(blobs, "*"))
+	if err != nil {
+		return nil, err
+	}
+
+	layers := make(map[string]Layer)
+	for _, match := range matches {
+		rel, err := filepath.Rel(blobs, match)
+		if err != nil {
+			slog.Warn("bad filepath", "path", match, "error", err)
+			continue
+		}
+
+		// TODO(mxyng): this should ideally use model.Digest but
+		// that's currently incompatible with the manifest digest
+		digest := strings.Replace(rel, "sha256-", "sha256:", 1)
+		layer, err := NewLayerFromLayer(digest, "", "")
+		if err != nil {
+			slog.Warn("bad blob", "digest", digest, "error", err)
+			layer = Layer{Digest: rel}
+		}
+
+		layers[digest] = layer
+	}
+
+	return layers, nil
+}

server/manifest.go

@@ -43,13 +43,13 @@ func (m *Manifest) Remove() error {
 		return err
 	}
 
-	return PruneDirectory(manifests)
+	return pruneEmptyDirectory(manifests)
 }
 
 func (m *Manifest) RemoveLayers() error {
 	for _, layer := range append(m.Layers, m.Config) {
 		if layer.Digest != "" {
-			if err := layer.Remove(); errors.Is(err, os.ErrNotExist) {
+			if err := layer.Prune(); errors.Is(err, os.ErrNotExist) {
 				slog.Debug("layer does not exist", "digest", layer.Digest)
 			} else if err != nil {
 				return err
@@ -169,3 +169,38 @@ func Manifests() (map[model.Name]*Manifest, error) {
 
 	return ms, nil
 }
+
+func pruneEmptyDirectory(p string) error {
+	fi, err := os.Lstat(p)
+	if err != nil {
+		return err
+	}
+
+	if fi.Mode()&os.ModeSymlink == 0 {
+		entries, err := os.ReadDir(p)
+		if err != nil {
+			return err
+		}
+
+		for _, entry := range entries {
+			if entry.IsDir() {
+				if err := pruneEmptyDirectory(filepath.Join(p, entry.Name())); err != nil {
+					return err
+				}
+			}
+		}
+
+		entries, err = os.ReadDir(p)
+		if err != nil {
+			return err
+		}
+
+		if len(entries) == 0 {
+			if err := os.Remove(p); err != nil {
+				return err
+			}
+		}
+	}
+
+	return nil
+}

server/model.go

@@ -34,7 +34,7 @@ func parseFromModel(ctx context.Context, name model.Name, fn func(api.ProgressRe
 	m, err := ParseNamedManifest(name)
 	switch {
 	case errors.Is(err, os.ErrNotExist):
-		if err := PullModel(ctx, name.String(), &registryOptions{}, fn); err != nil {
+		if err := PullModel(ctx, name, &registryOptions{}, fn); err != nil {
 			return nil, err
 		}
 

server/routes.go

@@ -464,24 +464,22 @@ func (s *Server) EmbeddingsHandler(c *gin.Context) {
 }
 
 func (s *Server) PullHandler(c *gin.Context) {
-	var req api.PullRequest
+	var r api.PullRequest
-	err := c.ShouldBindJSON(&req)
+	if err := c.ShouldBindJSON(&r); errors.Is(err, io.EOF) {
-	switch {
-	case errors.Is(err, io.EOF):
 		c.AbortWithStatusJSON(http.StatusBadRequest, gin.H{"error": "missing request body"})
 		return
-	case err != nil:
+	} else if err != nil {
 		c.AbortWithStatusJSON(http.StatusBadRequest, gin.H{"error": err.Error()})
 		return
 	}
 
-	name := model.ParseName(cmp.Or(req.Model, req.Name))
+	n := model.ParseName(cmp.Or(r.Model, r.Name))
-	if !name.IsValid() {
+	if !n.IsValid() {
 		c.AbortWithStatusJSON(http.StatusBadRequest, gin.H{"error": "invalid model name"})
 		return
 	}
 
-	if err := checkNameExists(name); err != nil {
+	if err := checkNameExists(n); err != nil {
 		c.AbortWithStatusJSON(http.StatusBadRequest, gin.H{"error": err.Error()})
 		return
 	}
@@ -493,19 +491,15 @@ func (s *Server) PullHandler(c *gin.Context) {
 			ch <- r
 		}
 
-		regOpts := &registryOptions{
-			Insecure: req.Insecure,
-		}
-
 		ctx, cancel := context.WithCancel(c.Request.Context())
 		defer cancel()
 
-		if err := PullModel(ctx, name.DisplayShortest(), regOpts, fn); err != nil {
+		if err := PullModel(ctx, n, &registryOptions{Insecure: r.Insecure}, fn); err != nil {
 			ch <- gin.H{"error": err.Error()}
 		}
 	}()
 
-	if req.Stream != nil && !*req.Stream {
+	if r.Stream != nil && !*r.Stream {
 		waitForStream(c, ch)
 		return
 	}
@@ -514,24 +508,18 @@ func (s *Server) PullHandler(c *gin.Context) {
 }
 
 func (s *Server) PushHandler(c *gin.Context) {
-	var req api.PushRequest
+	var r api.PushRequest
-	err := c.ShouldBindJSON(&req)
+	if err := c.ShouldBindJSON(&r); errors.Is(err, io.EOF) {
-	switch {
-	case errors.Is(err, io.EOF):
 		c.AbortWithStatusJSON(http.StatusBadRequest, gin.H{"error": "missing request body"})
 		return
-	case err != nil:
+	} else if err != nil {
 		c.AbortWithStatusJSON(http.StatusBadRequest, gin.H{"error": err.Error()})
 		return
 	}
 
-	var model string
+	n := model.ParseName(cmp.Or(r.Model, r.Name))
-	if req.Model != "" {
+	if !n.IsValid() {
-		model = req.Model
+		c.AbortWithStatusJSON(http.StatusBadRequest, gin.H{"error": fmt.Sprintf("name %q is invalid", cmp.Or(r.Model, r.Name))})
-	} else if req.Name != "" {
-		model = req.Name
-	} else {
-		c.AbortWithStatusJSON(http.StatusBadRequest, gin.H{"error": "model is required"})
 		return
 	}
 
@@ -542,19 +530,15 @@ func (s *Server) PushHandler(c *gin.Context) {
 			ch <- r
 		}
 
-		regOpts := &registryOptions{
-			Insecure: req.Insecure,
-		}
-
 		ctx, cancel := context.WithCancel(c.Request.Context())
 		defer cancel()
 
-		if err := PushModel(ctx, model, regOpts, fn); err != nil {
+		if err := PushModel(ctx, n, registryOptions{Insecure: r.Insecure}, fn); err != nil {
 			ch <- gin.H{"error": err.Error()}
 		}
 	}()
 
-	if req.Stream != nil && !*req.Stream {
+	if r.Stream != nil && !*r.Stream {
 		waitForStream(c, ch)
 		return
 	}
@@ -1147,18 +1131,15 @@ func Serve(ln net.Listener) error {
 	}
 
 	if !envconfig.NoPrune() {
-		// clean up unused layers and manifests
+		layers, err := Layers()
-		if err := PruneLayers(); err != nil {
-			return err
-		}
-
-		manifestsPath, err := GetManifestPath()
 		if err != nil {
 			return err
 		}
 
-		if err := PruneDirectory(manifestsPath); err != nil {
+		for _, layer := range layers {
-			return err
+			if err := layer.Prune(); err != nil {
+				return err
+			}
 		}
 	}
 

server/routes_test.go

@@ -5,16 +5,21 @@ import (
 	"context"
 	"encoding/binary"
 	"encoding/json"
+	"errors"
 	"fmt"
 	"io"
 	"math"
+	"net"
 	"net/http"
 	"net/http/httptest"
 	"os"
+	"path/filepath"
 	"sort"
 	"strings"
 	"testing"
+	"time"
 
+	"github.com/gin-gonic/gin"
 	"github.com/stretchr/testify/assert"
 	"github.com/stretchr/testify/require"
 
@@ -452,3 +457,84 @@ func TestNormalize(t *testing.T) {
 		})
 	}
 }
+
+func TestServe(t *testing.T) {
+	gin.SetMode(gin.TestMode)
+	p := t.TempDir()
+	t.Setenv("OLLAMA_MODELS", p)
+	var s Server
+
+	// seed some models
+	createRequest(t, s.CreateHandler, api.CreateRequest{
+		Name:      "test-model",
+		Modelfile: fmt.Sprintf("FROM %s", createBinFile(t, nil, nil)),
+	})
+
+	createRequest(t, s.CreateHandler, api.CreateRequest{
+		Name:      "test-model-2",
+		Modelfile: "FROM test-model\nSYSTEM You are a good robot.",
+	})
+
+	createRequest(t, s.CreateHandler, api.CreateRequest{
+		Name:      "test-model-3",
+		Modelfile: "FROM test-model\nSYSTEM You are a bad robot.",
+	})
+
+	checkFileExists(t, filepath.Join(p, "blobs", "*"), []string{
+		filepath.Join(p, "blobs", "sha256-1c515c46e60f849c6aeffa86e256508ac450464762a31ca08648e418f07c9819"),
+		filepath.Join(p, "blobs", "sha256-461fd034bb72312965d46160399b1b882c6a2f8c7305237ed7dd65f848fba10c"),
+		filepath.Join(p, "blobs", "sha256-66e9776a5bb7e5f6093681aa8ba01a7a6b6ae1dd697281f11fa714eaa948a6a4"),
+		filepath.Join(p, "blobs", "sha256-a4e5e156ddec27e286f75328784d7106b60a4eb1d246e950a001a3f944fbda99"),
+		filepath.Join(p, "blobs", "sha256-b3a5b5b438604c5103ba403a5455af94ea98494b5bbc177f4665716a37b99c1e"),
+		filepath.Join(p, "blobs", "sha256-ca239d7bd8ea90e4a5d2e6bf88f8d74a47b14336e73eb4e18bed4dd325018116"),
+	})
+
+	ln, err := net.Listen("tcp", "127.0.0.1:0")
+	if err != nil {
+		t.Fatal(err)
+	}
+	defer ln.Close()
+
+	//nolint:errcheck
+	go Serve(ln)
+
+	// wait for server to be healthy (GET / => 200)
+	ctx, cancel := context.WithTimeout(context.TODO(), time.Second)
+	defer cancel()
+
+	if err := func() error {
+		tick := time.NewTicker(20 * time.Millisecond)
+		defer tick.Stop()
+
+		for {
+			select {
+			case <-ctx.Done():
+				return errors.New("server did not become healthy")
+			case <-tick.C:
+				r, err := http.Get(fmt.Sprintf("http://%s", ln.Addr()))
+				if err != nil {
+					continue
+				}
+
+				if err := r.Body.Close(); err != nil {
+					return err
+				}
+
+				if r.StatusCode == http.StatusOK {
+					return nil
+				}
+			}
+		}
+	}(); err != nil {
+		t.Fatal(err)
+	}
+
+	checkFileExists(t, filepath.Join(p, "blobs", "*"), []string{
+		filepath.Join(p, "blobs", "sha256-1c515c46e60f849c6aeffa86e256508ac450464762a31ca08648e418f07c9819"),
+		filepath.Join(p, "blobs", "sha256-461fd034bb72312965d46160399b1b882c6a2f8c7305237ed7dd65f848fba10c"),
+		filepath.Join(p, "blobs", "sha256-66e9776a5bb7e5f6093681aa8ba01a7a6b6ae1dd697281f11fa714eaa948a6a4"),
+		filepath.Join(p, "blobs", "sha256-a4e5e156ddec27e286f75328784d7106b60a4eb1d246e950a001a3f944fbda99"),
+		filepath.Join(p, "blobs", "sha256-b3a5b5b438604c5103ba403a5455af94ea98494b5bbc177f4665716a37b99c1e"),
+		filepath.Join(p, "blobs", "sha256-ca239d7bd8ea90e4a5d2e6bf88f8d74a47b14336e73eb4e18bed4dd325018116"),
+	})
+}

server/upload.go

@@ -21,6 +21,7 @@ import (
 
 	"github.com/ollama/ollama/api"
 	"github.com/ollama/ollama/format"
+	"github.com/ollama/ollama/types/model"
 )
 
 var blobUploadManager sync.Map
@@ -108,7 +109,7 @@ func (b *blobUpload) Prepare(ctx context.Context, requestURL *url.URL, opts *reg
 		offset += size
 	}
 
-	slog.Info(fmt.Sprintf("uploading %s in %d %s part(s)", b.Digest[7:19], len(b.Parts), format.HumanBytes(b.Parts[0].Size)))
+	slog.Info("uploading blob", "digest", b.Digest, "size", format.HumanBytes(b.Total), "parts", len(b.Parts), "size per part", format.HumanBytes(b.Parts[0].Size))
 
 	requestURL, err = url.Parse(location)
 	if err != nil {
@@ -362,40 +363,46 @@ func (p *progressWriter) Rollback() {
 	p.written = 0
 }
 
-func uploadBlob(ctx context.Context, mp ModelPath, layer Layer, opts *registryOptions, fn func(api.ProgressResponse)) error {
+type uploadOptions struct {
-	requestURL := mp.BaseURL()
+	name    model.Name
-	requestURL = requestURL.JoinPath("v2", mp.GetNamespaceRepository(), "blobs", layer.Digest)
+	baseURL *url.URL
+	layer   Layer
+	regOpts *registryOptions
+	fn      func(api.ProgressResponse)
+}
 
-	resp, err := makeRequestWithRetry(ctx, http.MethodHead, requestURL, nil, nil, opts)
+func uploadBlob(ctx context.Context, opts uploadOptions) error {
+	requestURL := opts.baseURL.JoinPath("blobs", opts.layer.Digest)
+
+	resp, err := makeRequestWithRetry(ctx, http.MethodHead, requestURL, nil, nil, opts.regOpts)
 	switch {
 	case errors.Is(err, os.ErrNotExist):
 	case err != nil:
 		return err
 	default:
 		defer resp.Body.Close()
-		fn(api.ProgressResponse{
+		opts.fn(api.ProgressResponse{
-			Status:    fmt.Sprintf("pushing %s", layer.Digest[7:19]),
+			Status:    fmt.Sprintf("pushing %s", opts.layer.Digest[7:19]),
-			Digest:    layer.Digest,
+			Digest:    opts.layer.Digest,
-			Total:     layer.Size,
+			Total:     opts.layer.Size,
-			Completed: layer.Size,
+			Completed: opts.layer.Size,
 		})
 
 		return nil
 	}
 
-	data, ok := blobUploadManager.LoadOrStore(layer.Digest, &blobUpload{Layer: layer})
+	data, ok := blobUploadManager.LoadOrStore(opts.layer.Digest, &blobUpload{Layer: opts.layer})
 	upload := data.(*blobUpload)
 	if !ok {
-		requestURL := mp.BaseURL()
+		requestURL := opts.baseURL.JoinPath("blobs", "uploads")
-		requestURL = requestURL.JoinPath("v2", mp.GetNamespaceRepository(), "blobs/uploads/")
+		if err := upload.Prepare(ctx, requestURL, opts.regOpts); err != nil {
-		if err := upload.Prepare(ctx, requestURL, opts); err != nil {
+			blobUploadManager.Delete(opts.layer.Digest)
-			blobUploadManager.Delete(layer.Digest)
 			return err
 		}
 
 		//nolint:contextcheck
-		go upload.Run(context.Background(), opts)
+		go upload.Run(context.Background(), opts.regOpts)
 	}
 
-	return upload.Wait(ctx, fn)
+	return upload.Wait(ctx, opts.fn)
 }