[#1060] blobstor: allow to disable compression based on content-type

For some data compression makes little sense, as it is already compressed.
This commit allows to leave such data unchanged based on `Content-Type`
attribute. Currently exact, prefix and suffix matching are supported.

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

config/example/node.env

@@ -90,6 +90,7 @@ NEOFS_STORAGE_SHARD_0_METABASE_PERM=0644
 NEOFS_STORAGE_SHARD_0_BLOBSTOR_PATH=tmp/0/blob
 NEOFS_STORAGE_SHARD_0_BLOBSTOR_PERM=0644
 NEOFS_STORAGE_SHARD_0_BLOBSTOR_COMPRESS=true
+NEOFS_STORAGE_SHARD_0_BLOBSTOR_COMPRESSION_EXCLUDE_CONTENT_TYPES="audio/* video/*"
 NEOFS_STORAGE_SHARD_0_BLOBSTOR_DEPTH=5
 NEOFS_STORAGE_SHARD_0_BLOBSTOR_SMALL_OBJECT_SIZE=102400
 ### Blobovnicza config

config/example/node.json

@@ -136,6 +136,9 @@
           "path": "tmp/0/blob",
           "perm": "0644",
           "compress": true,
+          "compression_exclude_content_types": [
+            "audio/*", "video/*"
+          ],
           "depth": 5,
           "small_object_size": 102400,
           "blobovnicza": {

config/example/node.yaml

@@ -146,6 +146,9 @@ storage:
       blobstor:
         path: tmp/0/blob  # blobstor path
         compress: true  # turn on/off zstd(level 3) compression of stored objects
+        compression_exclude_content_types:
+          - audio/*
+          - video/*
 
       gc:
         remover_batch_size: 150  # number of objects to be removed by the garbage collector