[#1579] config: Move `storage.default` to `shard.default`

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

cmd/neofs-node/config/engine/config.go

@@ -24,8 +24,8 @@ const (
 func IterateShards(c *config.Config, required bool, f func(*shardconfig.Config)) {
 	c = c.Sub(subsection)
 
-	def := c.Sub("default")
 	c = c.Sub("shard")
+	def := c.Sub("default")
 
 	i := uint64(0)
 	for ; ; i++ {

config/example/node.yaml

@@ -104,6 +104,8 @@ storage:
   # note: shard configuration can be omitted for relay node (see `node.relay`)
   shard_pool_size: 15 # size of per-shard worker pools used for PUT operations
   shard_ro_error_threshold: 100 # amount of errors to occur before shard is made read-only (default: 0, ignore errors)
+
+  shard:
     default: # section with the default shard parameters
       resync_metabase: true  # sync metabase with blobstor on start, expensive, leave false until complete understanding
 
@@ -135,7 +137,6 @@ storage:
         remover_batch_size: 200  # number of objects to be removed by the garbage collector
         remover_sleep_interval: 5m  # frequency of the garbage collector invocation
 
-  shard:
     0:
       mode: "read-only"  # mode of the shard, must be one of the: "read-write" (default), "read-only"
       resync_metabase: false  # sync metabase with blobstor on start, expensive, leave false until complete understanding