OpenIDConfig openid.Config // only valid if OpenID is configured
	STSTLSConfig xtls.Config   // only valid if STS TLS is configured

	usersSysType UsersSysType

	rolesMap map[arn.ARN]string

	// Persistence layer for IAM subsystem
	store *IAMStoreSys

	// configLoaded will be closed and remain so after first load.
	configLoaded chan struct{}
}

// IAMUserType represents a user type inside MinIO server

* Provide flags to use etcd3 backed storage ([#24455](https://github.com/kubernetes/kubernetes/pull/24455), [@hongchaodeng](https://github.com/hongchaodeng))

### Other notable changes

* Fix hyperkube's layer caching, and remove --make-symlinks at build time ([#25693](https://github.com/kubernetes/kubernetes/pull/25693), [@luxas](https://github.com/luxas))

// a synchronous manner.
func mustReplicate(ctx context.Context, bucket, object string, mopts mustReplicateOptions) (dsc ReplicateDecision) {
	// object layer not initialized we return with no decision.
	if newObjectLayerFn() == nil {
		return dsc
	}

	// Disable server-side replication on object prefixes which are excluded

- Add alpha metrics tracking the resource version the cache layer of an informer is at. ([#137419](https://github.com/kubernetes/kubernetes/pull/137419), [@michaelasp](https://github.com/michaelasp)) [SIG API Machinery, Architecture, Instrumentation and Testing]

                        success = false;
                        continue;
                    }
                }

                // 3. Delete old index and recreate with the same name (Bhv layer caches concrete index names)
                deleteIndex(indexName);
                if (!createIndex(configIndex, indexName)) {

* etcd3: dereference the UID pointer for a readable error message. ([#33349](https://github.com/kubernetes/kubernetes/pull/33349), [@madhusudancs](https://github.com/madhusudancs))
* etcd3: pass SelectionPredicate instead of Filter to storage layer ([#31190](https://github.com/kubernetes/kubernetes/pull/31190), [@hongchaodeng](https://github.com/hongchaodeng))

            dependency mechanism</a>. The default scope is {@code compile}.
            ]]>
          </description>
          <type>String</type>
          <!-- This default has to be enforced at the maven-artifact layer, to allow
            | injection of defaults from <dependencyManagement/>.
            | TODO: how can we document it?
            |-->
          <!-- defaultValue>compile</defaultValue -->
        </field>

		Code:  ErrSiteReplicationIAMConfigMismatch,
	}
}

var errSRObjectLayerNotReady = SRError{
	Cause: fmt.Errorf("object layer not ready"),
	Code:  ErrServerNotInitialized,
}

func getSRStateFilePath() string {
	return srStatePrefix + SlashSeparator + srStateFile
}

// SRError - wrapped error for site replication.

the time specified by `--legacy-service-account-token-clean-up-period` (defaulting to one year), **and** are referenced from the `.secrets` list of a ServiceAccount object, **and**  are not referenced from pods. This label causes the authentication layer to reject use of the credentials. After being labeled as invalid, if the time specified by `--legacy-service-account-token-clean-up-period` (defaulting to one year) passes without the credential being used, the secret is automatically deleted. Secrets...

With CSI the Kubernetes volume layer becomes truly extensible, allowing third party storage developers to write drivers making their storage systems available in Kubernetes without having to touch the core code.