Проверь, правильно ли смонтировал
А как проверить. Сделал volume inspect
[
{
"CreatedAt": "2020-01-26T13:48:11+03:00",
"Driver": "local",
"Labels": {
"com.docker.compose.project": "promotion-backend",
"com.docker.compose.version": "1.23.2",
"com.docker.compose.volume": "nginx_logs"
},
"Mountpoint": "/var/lib/docker/volumes/promotion-backend_nginx_logs/_data",
"Name": "promotion-backend_nginx_logs",
"Options": null,
"Scope": "local"
}
]