You can configure your MongoDB resources to bind to specific storage in your MongoDB CustomResourceDefinition. The persistence field in the MongoDB CustomResourceDefinition allows you to more precisely manage where Kubernetes stores the logs and metadata generated from MongoDB custom resources. Controlling log and metadata storage allows you to have more fine-grained control of processes that manage and interact with this generated metadata.
You can configure persistence settings per component in the MongoDB CustomResourceDefinition. These settings allow you to specify the relationship between a given component and one or more related PersistentVolume resources, which store output from your MongoDB custom resources.
persistence設定は、Kubernetes クラスター内の MongoDB カスタム リソースが管理するオブジェクトに関連付けられたpersistentVolumesの数とストレージ容量を指定します。
前提条件
MongoDB 配置のストレージ オプションを構成するには、MongoDB Kubernetes Operator を通じて配置された MongoDB レプリカセット が必要です。または、次の前提条件を満たす必要があります。
手順
To create a single PersistentVolume in which a given component will store all MongoDB CustomResourceDefinition output, define the component's persistence as single. To create a distinct PersistentVolume for the component's data, journal, and logs, define the component's persistence as multiple.
MongoDB カスタム リソースを更新します。
次の例に示すように、MongoDB CRD 定義のpersistenceセクションにデータを入力します。
1 2 apiVersion: mongodb.com/v1 3 kind: MongoDB 4 metadata: 5 name: my-sharded-cluster 6 spec: 7 shardCount: 2 8 mongodsPerShardCount: 3 9 mongosCount: 2 10 configServerCount: 3 11 version: "8.0.0" 12 service: my-service 13 type: ShardedCluster 14 15 persistent: true 16 17 configSrvPodSpec: 18 persistence: 19 single: true 20 21 shardPodSpec: 22 persistence: 23 multiple: 24 # if the child of "multiple" is omitted then the default size will be used. 25 # 16GB for "data", 1GB for "journal", 3GB for "logs" 26 data: 27 storage: "20Gi" 28 storageClass: standard # You must define a storageClass, as the Operator creates a PVC, which will only create an associated PV with a backing storageClass. 29 logs: 30 storage: "4Gi" 31 storageClass: standard 32 ...