Zookeeper

Detailed information on the Zookeeper state store component

Component format

To setup Zookeeper state store create a component of type state.zookeeper. See this guide on how to create and apply a state store configuration.

  1. apiVersion: dapr.io/v1alpha1
  2. kind: Component
  3. metadata:
  4.   name: <NAME>
  5.   namespace: <NAMESPACE>
  6. spec:
  7.   type: state.zookeeper
  8.   version: v1
  9.   metadata:
  10.   - name: servers
  11.     value: <REPLACE-WITH-COMMA-DELIMITED-SERVERS> # Required. Example: "zookeeper.default.svc.cluster.local:2181"
  12.   - name: sessionTimeout
  13.     value: <REPLACE-WITH-SESSION-TIMEOUT> # Required. Example: "5s"
  14.   - name: maxBufferSize
  15.     value: <REPLACE-WITH-MAX-BUFFER-SIZE> # Optional. default: "1048576"
  16.   - name: maxConnBufferSize
  17.     value: <REPLACE-WITH-MAX-CONN-BUFFER-SIZE> # Optional. default: "1048576"
  18.   - name: keyPrefixPath
  19.     value: <REPLACE-WITH-KEY-PREFIX-PATH> # Optional.

Warning

以上示例将 Secret 明文存储。 更推荐的方式是使用 Secret 组件， here。

Spec metadata fields

字段RequiredDetailsExample
serversYComma delimited list of servers“zookeeper.default.svc.cluster.local:2181”
sessionTimeoutYThe session timeout value“5s”
maxBufferSizeNThe maximum size of buffer. Defaults to “1048576”“1048576”
maxConnBufferSizeNThe maximum size of connection buffer. Defautls to “1048576”“1048576”
keyPrefixPathNThe key prefix path in Zookeeper. No default“dapr”

Setup Zookeeper

You can run Zookeeper locally using Docker:

  1. docker run --name some-zookeeper --restart always -d zookeeper

You can then interact with the server using localhost:2181.

The easiest way to install Zookeeper on Kubernetes is by using the Helm chart:

  1. helm repo add incubator http://storage.googleapis.com/kubernetes-charts-incubator
  2. helm install zookeeper incubator/zookeeper

This installs Zookeeper into the default namespace. To interact with Zookeeper, find the service with: kubectl get svc zookeeper.

For example, if installing using the example above, the Zookeeper host address would be:

zookeeper.default.svc.cluster.local:2181

相关链接

Last modified January 1, 0001