assertNull(ResourceUtil.getFile(url));
    }

    private String getRoot() throws IOException {
        final String root = new File("/").getCanonicalPath().replace('\\', '/');
        if (root.startsWith("/")) {
            return root;
        }
        return "/" + root;
    }

  }

  @Test
  fun ecdsaSignedByRsa() {
    val root =
      HeldCertificate.Builder()
        .certificateAuthority(0)
        .rsa2048()
        .build()
    val leaf =
      HeldCertificate.Builder()
        .certificateAuthority(0)
        .ecdsa256()
        .signedBy(root)
        .build()
    assertThat(root.certificate.sigAlgName).isEqualTo("SHA256WITHRSA", ignoreCase = true)

- Reduced server startup time. For IAM encryption with the root credentials, MinIO had
   to use a memory-hard function (Argon2) that (on purpose) consumes a lot of memory and CPU.
   The new KMS-based approach can use a key derivation function that is orders of magnitudes
   cheaper w.r.t. memory and CPU.
- Root credentials can now be changed easily. Before, a two-step process was required to

                            XmlNode root = XmlNodeStaxBuilder.build(is, null);
                            String groupId = root.getChild("groupId").getValue();
                            String artifactId = root.getChild("artifactId").getValue();
                            String goalPrefix = root.getChild("goalPrefix").getValue();
                            String name = root.getChild("name").getValue();

**NOTE:**

- All the nodes running distributed MinIO should share a common root credentials, for the nodes to connect and trust each other. To achieve this, it is **recommended** to export root user and root password as environment variables, `MINIO_ROOT_USER` and `MINIO_ROOT_PASSWORD`, on all the nodes before executing MinIO server command. If not exported, default `minioadmin/minioadmin` credentials shall be used.

### Technical Details: `root_path`

When you mount a sub-application as described above, FastAPI will take care of communicating the mount path for the sub-application using a mechanism from the ASGI specification called a `root_path`.

That way, the sub-application will know to use that path prefix for the docs UI.

  quay.io/minio/minio server /data --console-address ":9001"
```

The MinIO deployment starts using default root credentials `minioadmin:minioadmin`. You can test the deployment using the MinIO Console, an embedded
object browser built into MinIO Server. Point a web browser running on the host machine to <http://127.0.0.1:9000> and log in with the
root credentials. You can use the Browser to create buckets, upload objects, and browse the contents of the MinIO server.

### جرئیات فنی : `root_path`

هنگامی که یک زیر برنامه را همانطور که در بالا توضیح داده شد متصل می کنید, FastAPI با استفاده از مکانیزمی از مشخصات ASGI به نام `root_path` ارتباط مسیر mount را برای زیر برنامه انجام می دهد.

به این ترتیب، زیر برنامه می داند که از آن پیشوند مسیر برای رابط کاربری اسناد (docs UI) استفاده کند.

        InternalSession session = InternalSession.from(s);
        DependencyNode root = cast(AbstractNode.class, node, "node").getDependencyNode();
        List<DependencyNode> dependencies = session.getRepositorySystem()
                .flattenDependencyNodes(session.getSession(), root, getScopeDependencyFilter(scope));
        dependencies.remove(root);
        return map(dependencies, session::getNode);
    }

  }

  @Test
  fun `RSA issuer and signature`() {
    val root =
      HeldCertificate.Builder()
        .certificateAuthority(0)
        .rsa2048()
        .build()
    val certificate =
      HeldCertificate.Builder()
        .signedBy(root)
        .rsa2048()
        .build()

    val certificateByteString = certificate.certificate.encoded.toByteString()