github/zot
1
0
Fork 0
mirror of https://github.com/project-zot/zot.git synced 2026-06-17 04:48:26 +08:00
Code Issues Packages Projects Releases Wiki Activity

Added new extension "sync"

Browse Source 
Periodically poll registries and pull images according to sync's config
Added sync on demand, syncing when clients asks for an image which
zot doesn't have.

Signed-off-by: Petu Eusebiu <peusebiu@cisco.com>
This commit is contained in:
Petu Eusebiu
2021-06-08 23:11:18 +03:00
committed by Ramkumar Chinchani
parent 1027f872ec
commit 19003e8a71
34 changed files with 3158 additions and 339 deletions
Download Patch File Download Diff File Expand all files Collapse all files
pkg/api/routes.go
+48 -3
View File
@@ -97,7 +97,7 @@ func (rh *RouteHandler) SetupRoutes() {
rh.c.Router.PathPrefix("/swagger/v2/").Methods("GET").Handler(httpSwagger.WrapHandler)
// Setup Extensions Routes
if rh.c.Config != nil && rh.c.Config.Extensions != nil {
ext.SetupRoutes(rh.c.Config.Extensions, rh.c.Router, rh.c.StoreController, rh.c.Log)
ext.SetupRoutes(rh.c.Config, rh.c.Router, rh.c.StoreController, rh.c.Log)
}
}
@@ -273,7 +273,7 @@ func (rh *RouteHandler) CheckManifest(w http.ResponseWriter, r *http.Request) {
return
}
_, digest, mediaType, err := is.GetImageManifest(name, reference)
_, digest, mediaType, err := getImageManifest(rh, is, name, reference)
if err != nil {
switch err {
case errors.ErrRepoNotFound:
@@ -331,7 +331,8 @@ func (rh *RouteHandler) GetManifest(w http.ResponseWriter, r *http.Request) {
return
}
content, digest, mediaType, err := is.GetImageManifest(name, reference)
content, digest, mediaType, err := getImageManifest(rh, is, name, reference)
if err != nil {
switch err {
case errors.ErrRepoNotFound:
@@ -1240,3 +1241,47 @@ func WriteDataFromReader(w http.ResponseWriter, status int, length int64, mediaT
func (rh *RouteHandler) getImageStore(name string) storage.ImageStore {
return rh.c.StoreController.GetImageStore(name)
}
// will sync on demand if an image is not found, in case sync extensions is enabled.
func getImageManifest(rh *RouteHandler, is storage.ImageStore, name,
reference string) ([]byte, string, string, error) {
content, digest, mediaType, err := is.GetImageManifest(name, reference)
if err != nil {
switch err {
case errors.ErrRepoNotFound:
if rh.c.Config.Extensions != nil && rh.c.Config.Extensions.Sync != nil {
rh.c.Log.Info().Msgf("image not found, trying to get image %s:%s by syncing on demand", name, reference)
ok, errSync := ext.SyncOneImage(rh.c.Config, rh.c.Log, name, reference)
switch ok {
case true:
content, digest, mediaType, err = is.GetImageManifest(name, reference)
case false && errSync == nil:
rh.c.Log.Info().Msgf("couldn't find image %s:%s in sync registries", name, reference)
case false && errSync != nil:
rh.c.Log.Err(err).Msgf("error encounter while syncing image %s:%s", name, reference)
}
}
case errors.ErrManifestNotFound:
if rh.c.Config.Extensions != nil && rh.c.Config.Extensions.Sync != nil {
rh.c.Log.Info().Msgf("manifest not found, trying to get image %s:%s by syncing on demand", name, reference)
ok, errSync := ext.SyncOneImage(rh.c.Config, rh.c.Log, name, reference)
switch ok {
case true:
content, digest, mediaType, err = is.GetImageManifest(name, reference)
case false && errSync == nil:
rh.c.Log.Info().Msgf("couldn't find image %s:%s in sync registries", name, reference)
case false && errSync != nil:
rh.c.Log.Err(err).Msgf("error encounter while syncing image %s:%s", name, reference)
}
}
default:
return []byte{}, "", "", err
}
}
return content, digest, mediaType, err
}