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refactor(cache): rewrote/refactored cachedb functionality to use interface (#667)

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Moved boltdb to a driver implementation for such interface
Added CreateCacheDatabaseDriver in controller
Fixed default directory creation (boltDB will only create the file, not the dir
Added coverage tests
Added example config for boltdb
Re-added caching on subpaths, rewrote CreateCacheDatabaseDriver
Fix tests
Made cacheDriver argument mandatory for NewImageStore, added more validation, added defaults
Moved cache interface to own file, removed useRelPaths from config
Got rid of cache config, refactored
Moved cache to own package and folder
Renamed + removed cache factory to backend, replaced CloudCache to RemoteCache
Moved storage constants back to storage package
moved cache interface and factory to storage package, changed remoteCache defaulting

Signed-off-by: Catalin Hofnar <catalin.hofnar@gmail.com>
This commit is contained in:
Catalin-George Hofnar
2022-11-03 00:53:08 +02:00
committed by GitHub
parent e6539290d4
commit 4170d2adbc
31 changed files with 1204 additions and 468 deletions
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pkg/api/controller_test.go
+34 -3
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@@ -49,6 +49,7 @@ import (
"zotregistry.io/zot/pkg/api/config"
"zotregistry.io/zot/pkg/api/constants"
extconf "zotregistry.io/zot/pkg/extensions/config"
"zotregistry.io/zot/pkg/log"
"zotregistry.io/zot/pkg/storage"
"zotregistry.io/zot/pkg/storage/local"
"zotregistry.io/zot/pkg/test"
@@ -106,6 +107,33 @@ func TestNew(t *testing.T) {
})
}
func TestCreateCacheDatabaseDriver(t *testing.T) {
Convey("Test CreateCacheDatabaseDriver", t, func() {
log := log.NewLogger("debug", "")
// fail create db, no perm
dir := t.TempDir()
conf := config.New()
conf.Storage.RootDirectory = dir
conf.Storage.Dedupe = true
conf.Storage.RemoteCache = false
err := os.Chmod(dir, 0o000)
if err != nil {
panic(err)
}
driver := api.CreateCacheDatabaseDriver(conf.Storage.StorageConfig, log)
So(driver, ShouldBeNil)
conf.Storage.RemoteCache = true
conf.Storage.RootDirectory = t.TempDir()
driver = api.CreateCacheDatabaseDriver(conf.Storage.StorageConfig, log)
So(driver, ShouldBeNil)
})
}
func TestRunAlreadyRunningServer(t *testing.T) {
Convey("Run server on unavailable port", t, func() {
port := test.GetFreePort()
@@ -3180,6 +3208,7 @@ func TestCrossRepoMount(t *testing.T) {
panic(err)
}
ctlr.Config.Storage.RootDirectory = dir
ctlr.Config.Storage.RemoteCache = false
go startServer(ctlr)
defer stopServer(ctlr)
@@ -5746,6 +5775,7 @@ func TestInjectTooManyOpenFiles(t *testing.T) {
ctlr := api.NewController(conf)
dir := t.TempDir()
ctlr.Config.Storage.RootDirectory = dir
conf.Storage.RemoteCache = false
go startServer(ctlr)
defer stopServer(ctlr)
@@ -5981,6 +6011,7 @@ func TestPeriodicGC(t *testing.T) {
baseURL := test.GetBaseURL(port)
conf := config.New()
conf.HTTP.Port = port
conf.Storage.RemoteCache = false
logFile, err := os.CreateTemp("", "zot-log*.txt")
So(err, ShouldBeNil)
@@ -6032,7 +6063,7 @@ func TestPeriodicGC(t *testing.T) {
subPaths := make(map[string]config.StorageConfig)
subPaths["/a"] = config.StorageConfig{RootDirectory: subDir, GC: true, GCDelay: 1 * time.Second, GCInterval: 24 * time.Hour} //nolint:lll // gofumpt conflicts with lll
subPaths["/a"] = config.StorageConfig{RootDirectory: subDir, GC: true, GCDelay: 1 * time.Second, GCInterval: 24 * time.Hour, RemoteCache: false} //nolint:lll // gofumpt conflicts with lll
ctlr.Config.Storage.SubPaths = subPaths
ctlr.Config.Storage.RootDirectory = dir
@@ -6045,10 +6076,10 @@ func TestPeriodicGC(t *testing.T) {
So(err, ShouldBeNil)
// periodic GC is not enabled for default store
So(string(data), ShouldContainSubstring,
"\"GCDelay\":3600000000000,\"GCInterval\":0,\"RootDirectory\":\""+dir+"\"")
"\"GCDelay\":3600000000000,\"GCInterval\":0,\"")
// periodic GC is enabled for sub store
So(string(data), ShouldContainSubstring,
fmt.Sprintf("\"SubPaths\":{\"/a\":{\"RootDirectory\":\"%s\",\"GC\":true,\"Dedupe\":false,\"Commit\":false,\"GCDelay\":1000000000,\"GCInterval\":86400000000000", subDir)) //nolint:lll // gofumpt conflicts with lll
fmt.Sprintf("\"SubPaths\":{\"/a\":{\"RootDirectory\":\"%s\",\"Dedupe\":false,\"RemoteCache\":false,\"GC\":true,\"Commit\":false,\"GCDelay\":1000000000,\"GCInterval\":86400000000000", subDir)) //nolint:lll // gofumpt conflicts with lll
})
}