# Object Lock and Immutablity Guide [![Slack](https://slack.min.io/slack?type=svg)](https://slack.min.io)

MinIO server allows WORM for specific objects or by configuring a bucket with default object lock configuration that applies default retention mode and retention duration to all objects. This makes objects in the bucket immutable i.e. delete of the version are not allowed until an expiry specified in the bucket's object lock configuration or object retention.

    isCanBeResolved = true
    isCanBeConsumed = false

    attributes {
        attribute(Usage.USAGE_ATTRIBUTE, objects.named(Usage.JAVA_RUNTIME))
        attribute(Category.CATEGORY_ATTRIBUTE, objects.named(Category.LIBRARY))
        attribute(LibraryElements.LIBRARY_ELEMENTS_ATTRIBUTE, objects.named(LibraryElements.JAR))
    }
}

tasks.jar.configure {

    result = 31 * result + connectionSpecs.hashCode()
    result = 31 * result + proxySelector.hashCode()
    result = 31 * result + Objects.hashCode(proxy)
    result = 31 * result + Objects.hashCode(sslSocketFactory)
    result = 31 * result + Objects.hashCode(hostnameVerifier)
    result = 31 * result + Objects.hashCode(certificatePinner)
    return result
  }

  internal fun equalsNonHost(that: Address): Boolean {

  The `NewDelayedInformer` abstracts that entirely, offering the same API as normal `kclient.Client`.
* Simple object filtering. Beyond just static filters on objects, `kclient` supports _dynamic filters_ that can change at runtime.
  When a filter changes and includes/removes new objects, those are automatically handled.

minio server /data
```

### Storage Class

By default, parity for objects with standard storage class is set to `N/2`, and parity for objects with reduced redundancy storage class objects is set to `2`. Read more about storage class support in MinIO server [here](https://github.com/minio/minio/blob/master/docs/erasure/storage-class/README.md).

```
KEY:
storage_class  define object level redundancy

ARGS:

  // it acts on some changes in a ReplicaSet object.
  // +optional
  optional k8s.io.api.core.v1.ObjectReference regarding = 8;

  // related is the optional secondary object for more complex actions. E.g. when regarding object triggers
  // a creation or deletion of related object.
  // +optional
  optional k8s.io.api.core.v1.ObjectReference related = 9;

import org.gradle.api.tasks.TaskContainer
import org.gradle.api.tasks.bundling.Jar
import org.gradle.kotlin.dsl.*
import org.gradle.util.GradleVersion


abstract class ModuleIdentityExtension(val tasks: TaskContainer, val objects: ObjectFactory) {

    abstract val version: Property<GradleVersion>

    abstract val baseName: Property<String>

    abstract val buildTimestamp: Property<String>
    abstract val snapshot: Property<Boolean>

  // If empty, defaulted to labels on the pod template.
  // More info: https://kubernetes.io/docs/concepts/overview/working-with-objects/labels/#label-selectors
  // +optional
  optional k8s.io.apimachinery.pkg.apis.meta.v1.LabelSelector selector = 2;

  // template is the object that describes the pod that will be created if
  // insufficient replicas are detected. Each pod stamped out by the StatefulSet

Here we'll see an example using **<a href="https://www.couchbase.com/" class="external-link" target="_blank">Couchbase</a>**, a <abbr title="Document here refers to a JSON object (a dict), with keys and values, and those values can also be other JSON objects, arrays (lists), numbers, strings, booleans, etc.">document</abbr> based NoSQL database.

You can adapt it to any other NoSQL database like:

* **MongoDB**
* **Cassandra**

message ServiceAccountSubject {
  // `namespace` is the namespace of matching ServiceAccount objects.
  // Required.
  optional string namespace = 1;

  // `name` is the name of matching ServiceAccount objects, or "*" to match regardless of name.
  // Required.
  optional string name = 2;
}