}
    ]
}
```

## 4. Enable ILM transition feature

```yaml
    volumes:
      - name: secret-volume
        secret:
          secretName: tls-ssl-minio
          items:
          - key: public.crt
            path: public.crt
          - key: private.key
            path: private.key
          - key: public.crt
            path: CAs/public.crt
```

Note that the `secretName` should be same as the secret name created in previous step. Then add the below section under

### 2. Configure authentication type for Prometheus metrics

MinIO supports two authentication modes for Prometheus either `jwt` or `public`, by default MinIO runs in `jwt` mode. To allow public access without authentication for prometheus metrics set environment as follows.

```
export MINIO_PROMETHEUS_AUTH_TYPE="public"
minio server ~/test
```

### 3. Configuring Prometheus

#### 3.1 Authenticated Prometheus config

For instance, given that TLS is enabled and you need to add trust for MinIO's own CA and for the CA of a Keycloak server, a Kubernetes secret can be created from the certificate files using `kubectl`:

```
kubectl -n minio create secret generic minio-trusted-certs --from-file=public.crt --from-file=keycloak.crt
```

Following is a sample directory structure for MinIO server with TLS certificates.

```sh
$ mc tree --files ~/.minio
/home/user1/.minio
└─ certs
   ├─ CAs
   ├─ private.key
   └─ public.crt
```

You can provide a custom certs directory using `--certs-dir` command line option.

#### Credentials

```

### TLS (FTP)

Unlike SFTP server, FTP server is insecure by default. To operate under TLS mode, you need to provide certificates via

```
--ftp="tls-private-key=path/to/private.key" --ftp="tls-public-cert=path/to/public.crt"
```

> NOTE: if MinIO distributed setup is already configured to run under TLS, FTP will automatically use the relevant

and `bucket2.domain.com`.

#### MINIO_PUBLIC_IPS

This is comma separated list of IP addresses to which buckets created on this MinIO instance will resolve to. For example,
a bucket `bucket1` created on current MinIO instance will be accessible as `bucket1.domain.com`, and the DNS entry for
`bucket1.domain.com` will point to IP address set in `MINIO_PUBLIC_IPS`.

import io.minio.errors.MinioException;
import java.io.IOException;
import java.security.InvalidKeyException;
import java.security.NoSuchAlgorithmException;

public class EnableVersioning {
  /** MinioClient.enableVersioning() example. */
  public static void main(String[] args)
      throws IOException, NoSuchAlgorithmException, InvalidKeyException {
    try {
      /* play.min.io for test and development. */

```sh
firewall-cmd --get-active-zones
```

This command gets the active zone(s). Now, apply port rules to the relevant zones returned above. For example if the zone is `public`, use

```sh
firewall-cmd --zone=public --add-port=9000/tcp --permanent
```

Note that `permanent` makes sure the rules are persistent across firewall start, restart or reload. Finally reload the firewall for changes to take effect.

Copy the existing private key and public certificate to the `certs` directory. The default certs directory is:

* **Linux:** `${HOME}/.minio/certs`
* **Windows:** `%%USERPROFILE%%\.minio\certs`

**Note:**

* Location of custom certs directory can be specified using `--certs-dir` command line option.
* Inside the `certs` directory, the private key must by named `private.key` and the public key must be named `public.crt`.