[#1523] neofs-node: Refactor configuration

1. Move compression parameters to the `shard` section.
2. Allow to use multiple sub-storage components in the blobstor.

Signed-off-by: Evgenii Stratonikov <evgeniy@nspcc.ru>

pkg/local_object_storage/blobstor/blobstor.go

@@ -1,12 +1,8 @@
 package blobstor
 
 import (
-	"encoding/hex"
-	"io/fs"
-	"path/filepath"
 	"sync"
 
-	"github.com/nspcc-dev/neofs-node/pkg/local_object_storage/blobstor/blobovniczatree"
 	"github.com/nspcc-dev/neofs-node/pkg/local_object_storage/blobstor/common"
 	"github.com/nspcc-dev/neofs-node/pkg/local_object_storage/blobstor/compression"
 	"github.com/nspcc-dev/neofs-node/pkg/local_object_storage/blobstor/fstree"
@@ -28,8 +24,6 @@ type BlobStor struct {
 
 	modeMtx sync.RWMutex
 	mode    mode.Mode
-
-	storage [2]SubStorage
 }
 
 type Info = fstree.Info
@@ -39,37 +33,12 @@ type Option func(*cfg)
 
 type cfg struct {
 	compression.CConfig
-
-	fsTreeDepth int
-	fsTreeInfo  fstree.Info
-
-	smallSizeLimit uint64
-
-	log *logger.Logger
-
-	blzOpts []blobovniczatree.Option
+	log     *logger.Logger
+	storage []SubStorage
 }
 
-const (
-	defaultShallowDepth = 4
-	defaultPerm         = 0700
-
-	defaultSmallSizeLimit = 1 << 20 // 1MB
-)
-
-const blobovniczaDir = "blobovnicza"
-
 func initConfig(c *cfg) {
-	*c = cfg{
-		fsTreeDepth: defaultShallowDepth,
-		fsTreeInfo: Info{
-			Permissions: defaultPerm,
-			RootPath:    "./",
-		},
-		smallSizeLimit: defaultSmallSizeLimit,
-		log:            zap.L(),
-	}
-	c.blzOpts = []blobovniczatree.Option{blobovniczatree.WithCompressionConfig(&c.CConfig)}
+	c.log = zap.L()
 }
 
 // New creates, initializes and returns new BlobStor instance.
@@ -81,23 +50,10 @@ func New(opts ...Option) *BlobStor {
 		opts[i](&bs.cfg)
 	}
 
-	bs.storage[0].Storage = blobovniczatree.NewBlobovniczaTree(bs.blzOpts...)
-	bs.storage[0].Policy = func(_ *objectSDK.Object, data []byte) bool {
-		return uint64(len(data)) <= bs.cfg.smallSizeLimit
+	for i := range bs.storage {
+		bs.storage[i].Storage.SetCompressor(&bs.CConfig)
 	}
 
-	bs.storage[1].Storage = &fstree.FSTree{
-		Info:       bs.cfg.fsTreeInfo,
-		Depth:      bs.cfg.fsTreeDepth,
-		DirNameLen: hex.EncodedLen(fstree.DirNameLen),
-		CConfig:    &bs.cfg.CConfig,
-	}
-	bs.storage[1].Policy = func(*objectSDK.Object, []byte) bool {
-		return true
-	}
-
-	bs.blzOpts = nil
-
 	return bs
 }
 
@@ -106,17 +62,17 @@ func (b *BlobStor) SetLogger(l *zap.Logger) {
 	b.log = l
 }
 
-// WithShallowDepth returns option to set the
-// depth of the object file subdirectory tree.
-//
-// Depth is reduced to maximum value in case of overflow.
-func WithShallowDepth(depth int) Option {
+// WithStorages provides sub-blobstors.
+func WithStorages(st []SubStorage) Option {
 	return func(c *cfg) {
-		if depth > fstree.MaxDepth {
-			depth = fstree.MaxDepth
-		}
+		c.storage = st
+	}
+}
 
-		c.fsTreeDepth = depth
+// WithLogger returns option to specify BlobStor's logger.
+func WithLogger(l *logger.Logger) Option {
+	return func(c *cfg) {
+		c.log = l.With(zap.String("component", "BlobStor"))
 	}
 }
 
@@ -141,70 +97,3 @@ func WithUncompressableContentTypes(values []string) Option {
 		c.UncompressableContentTypes = values
 	}
 }
-
-// WithRootPath returns option to set path to root directory
-// of the fs tree to write the objects.
-func WithRootPath(rootDir string) Option {
-	return func(c *cfg) {
-		c.fsTreeInfo.RootPath = rootDir
-		c.blzOpts = append(c.blzOpts, blobovniczatree.WithRootPath(filepath.Join(rootDir, blobovniczaDir)))
-	}
-}
-
-// WithRootPerm returns option to set permission
-// bits of the fs tree.
-func WithRootPerm(perm fs.FileMode) Option {
-	return func(c *cfg) {
-		c.fsTreeInfo.Permissions = perm
-		c.blzOpts = append(c.blzOpts, blobovniczatree.WithPermissions(perm))
-	}
-}
-
-// WithSmallSizeLimit returns option to set maximum size of
-// "small" object.
-func WithSmallSizeLimit(lim uint64) Option {
-	return func(c *cfg) {
-		c.smallSizeLimit = lim
-		c.blzOpts = append(c.blzOpts, blobovniczatree.WithObjectSizeLimit(lim))
-	}
-}
-
-// WithLogger returns option to specify BlobStor's logger.
-func WithLogger(l *logger.Logger) Option {
-	return func(c *cfg) {
-		c.log = l.With(zap.String("component", "BlobStor"))
-		c.blzOpts = append(c.blzOpts, blobovniczatree.WithLogger(c.log))
-	}
-}
-
-// WithBlobovniczaShallowDepth returns option to specify
-// depth of blobovnicza directories.
-func WithBlobovniczaShallowDepth(d uint64) Option {
-	return func(c *cfg) {
-		c.blzOpts = append(c.blzOpts, blobovniczatree.WithBlobovniczaShallowDepth(d))
-	}
-}
-
-// WithBlobovniczaShallowWidth returns option to specify
-// width of blobovnicza directories.
-func WithBlobovniczaShallowWidth(w uint64) Option {
-	return func(c *cfg) {
-		c.blzOpts = append(c.blzOpts, blobovniczatree.WithBlobovniczaShallowWidth(w))
-	}
-}
-
-// WithBlobovniczaOpenedCacheSize return option to specify
-// maximum number of opened non-active blobovnicza's.
-func WithBlobovniczaOpenedCacheSize(sz int) Option {
-	return func(c *cfg) {
-		c.blzOpts = append(c.blzOpts, blobovniczatree.WithOpenedCacheSize(sz))
-	}
-}
-
-// WithBlobovniczaSize returns option to specify maximum volume
-// of each blobovnicza.
-func WithBlobovniczaSize(sz uint64) Option {
-	return func(c *cfg) {
-		c.blzOpts = append(c.blzOpts, blobovniczatree.WithBlobovniczaSize(sz))
-	}
-}