curl --request PATCH \
  --url https://api.gcore.com/storage/provisioning/v3/storages/{storage_id}/buckets/{bucket_name} \
  --header 'Authorization: <api-key>' \
  --header 'Content-Type: application/json' \
  --data '
{
  "cors": {
    "allowed_origins": [
      "https://example.com"
    ]
  },
  "lifecycle": {
    "expiration_days": 30
  },
  "policy": {
    "is_public": true
  }
}
'

{
  "name": "my-bucket",
  "storage_id": 123,
  "cors": {
    "allowed_origins": [
      "https://example.com",
      "*"
    ]
  },
  "lifecycle": {
    "expiration_days": 30
  },
  "policy": {
    "is_public": true
  }
}