3. Checking the new gateway work - for example by overriding the IP in /etc/hosts
4. Modify the DNS server to add the A record of the new namespace
5. Check traffic
6. Delete the A record corresponding to the gateway in istio-system
7. Upgrade istio-system, disabling the ingressgateway
8. Delete the domain TLS certs from istio-system.

```
mc replicate edit alias/bucket --id xyz.id --replicate "delete,delete-marker"
```

To re-enable replica metadata modification syncing,

```
mc replicate edit alias/bucket --id xyz.id --replicate "delete,delete-marker,replica-metadata-sync"
```

## MinIO Extension

### Replicating Deletes

    assertThat(head.method).isEqualTo("HEAD")
    assertThat(head.body).isNull()

    val delete = Request.Builder().url("http://localhost/api").delete().build()
    assertThat(delete.method).isEqualTo("DELETE")
    assertThat(delete.body!!.contentLength()).isEqualTo(0L)

    val post = Request.Builder().url("http://localhost/api").post(body).build()

 
## Cache directory

The cache directory must be exclusively owned by a single instance.

Deleting the cache when it is no longer needed can be done.  However this may delete the purpose of the cache
which is designed to persist between app restarts.

```kotlin
cache.delete()
```
 
## Pruning the Cache

Pruning the entire Cache to clear space temporarily can be done using evictAll.

```kotlin
cache.evictAll()
```

    }

    // If a bkp file exists, use it instead.
    if (fileSystem.exists(journalFileBackup)) {
      // If journal file also exists just delete backup file.
      if (fileSystem.exists(journalFile)) {
        fileSystem.delete(journalFileBackup)
      } else {
        fileSystem.atomicMove(journalFileBackup, journalFile)
      }
    }

pkg runtime/cgo (darwin-amd64-cgo), method (Handle) Delete()
pkg runtime/cgo (darwin-amd64-cgo), method (Handle) Value() interface{}
pkg runtime/cgo (darwin-amd64-cgo), type Handle uintptr
pkg runtime/cgo (darwin-arm64-cgo), func NewHandle(interface{}) Handle
pkg runtime/cgo (darwin-arm64-cgo), method (Handle) Delete()
pkg runtime/cgo (darwin-arm64-cgo), method (Handle) Value() interface{}

     */
    private
    fun cleanUp(filesToCleanUp: Collection<File>) {
        try {
            fileSystemOperations.delete {
                delete(*filesToCleanUp.toTypedArray())
            }
        } catch (e: Exception) {
            // https://github.com/gradle/gradle-private/issues/2983#issuecomment-596083202
            e.printStackTrace()

        }
    ]
}
```

### 3.3 Automatic removal of delete markers with no other versions

When an object has only one version as a delete marker, the latter can be automatically removed after a certain number of days using the following configuration:

```
{
    "Rules": [
        {
            "ID": "Removing all delete markers",
            "Expiration": {
                "DeleteMarker": true

| `minio_node_ilm_action_count_delete_restored_action`         | Total action outcome of lifecycle checks since server start for deletion of temporarily restored object    |
| `minio_node_ilm_action_count_delete_restored_version_action` | Total action outcome of lifecycle checks since server start for deletion of a temporarily restored version |

      |  0221
      |  0234-024F
      |  0000-001F; [CONTROL CHARACTERS]
      |  007F; DELETE
      |
      """.trimMargin(),
    )

    val rangeList = buffer.readCodePointSet()
    assertEquals(
      listOf(
        0x0221..0x0221,
        0x0234..0x024f,
        // [CONTROL CHARACTERS].
        0x0000..0x001f,
        // DELETE.
        0x007f..0x007f,
      ),
      rangeList.ranges,
    )
  }