[#1806] neofs-cli: Add control flush-cache command

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

CHANGELOG.md

@@ -10,6 +10,7 @@ Changelog for NeoFS Node
 - Changelog updates CI step (#1808)
 - Validate storage node configuration before node startup (#1805)
 - `neofs-node -check` command to check the configuration file (#1805)
+- `flush-cache` control service command to flush write-cache (#1806)
 
 ### Changed
 

cmd/neofs-cli/modules/control/flush_cache.go

@@ -0,0 +1,50 @@
+package control
+
+import (
+	"github.com/nspcc-dev/neofs-api-go/v2/rpc/client"
+	"github.com/nspcc-dev/neofs-node/cmd/neofs-cli/internal/common"
+	"github.com/nspcc-dev/neofs-node/cmd/neofs-cli/internal/commonflags"
+	"github.com/nspcc-dev/neofs-node/cmd/neofs-cli/internal/key"
+	"github.com/nspcc-dev/neofs-node/pkg/services/control"
+	"github.com/spf13/cobra"
+)
+
+var flushCacheCmd = &cobra.Command{
+	Use:   "flush-cache",
+	Short: "Flush objects from the write-cache to the main storage",
+	Long:  "Flush objects from the write-cache to the main storage",
+	Run:   flushCache,
+}
+
+func flushCache(cmd *cobra.Command, _ []string) {
+	pk := key.Get(cmd)
+
+	req := &control.FlushCacheRequest{Body: new(control.FlushCacheRequest_Body)}
+	req.Body.Shard_ID = getShardID(cmd)
+
+	signRequest(cmd, pk, req)
+
+	cli := getClient(cmd, pk)
+
+	var resp *control.FlushCacheResponse
+	var err error
+	err = cli.ExecRaw(func(client *client.Client) error {
+		resp, err = control.FlushCache(client, req)
+		return err
+	})
+	common.ExitOnErr(cmd, "rpc error: %w", err)
+
+	verifyResponse(cmd, resp.GetSignature(), resp.GetBody())
+
+	cmd.Println("Write-cache has been flushed.")
+}
+
+func initControlFlushCacheCmd() {
+	commonflags.InitWithoutRPC(flushCacheCmd)
+
+	ff := flushCacheCmd.Flags()
+	ff.String(controlRPC, controlRPCDefault, controlRPCUsage)
+	ff.String(shardIDFlag, "", "Shard ID in base58 encoding")
+
+	_ = flushCacheCmd.MarkFlagRequired(shardIDFlag)
+}

cmd/neofs-cli/modules/control/shards.go

@@ -16,10 +16,12 @@ func initControlShardsCmd() {
 	shardsCmd.AddCommand(dumpShardCmd)
 	shardsCmd.AddCommand(restoreShardCmd)
 	shardsCmd.AddCommand(evacuateShardCmd)
+	shardsCmd.AddCommand(flushCacheCmd)
 
 	initControlShardsListCmd()
 	initControlSetShardModeCmd()
 	initControlDumpShardCmd()
 	initControlRestoreShardCmd()
 	initControlEvacuateShardCmd()
+	initControlFlushCacheCmd()
 }