Hazelcast

Detailed information on the Hazelcast state store component

Setup a Hazelcast state store

• Self-Hosted
• Kubernetes

You can run Hazelcast locally using Docker:

docker run -e JAVA_OPTS="-Dhazelcast.local.publicAddress=127.0.0.1:5701" -p 5701:5701 hazelcast/hazelcast

You can then interact with the server using the 127.0.0.1:5701.

The easiest way to install Hazelcast on Kubernetes is by using the Helm chart.

Create a Dapr component

The next step is to create a Dapr component for Hazelcast.

Create the following YAML file named hazelcast.yaml:

apiVersion: dapr.io/v1alpha1
kind: Component
metadata:
  name: <NAME>
  namespace: <NAMESPACE>
spec:
  type: state.hazelcast
  version: v1
  metadata:
  - name: hazelcastServers
    value: <REPLACE-WITH-HOSTS> # Required. A comma delimited string of servers. Example: "hazelcast:3000,hazelcast2:3000"
  - name: hazelcastMap
    value: <REPLACE-WITH-MAP> # Required. Hazelcast map configuration.

Warning

The above example uses secrets as plain strings. It is recommended to use a secret store for the secrets as described here.

Apply the configuration

In Kubernetes

To apply the Hazelcast state store to Kubernetes, use the kubectl CLI:

kubectl apply -f hazelcast.yaml

Running locally

To run locally, create a components dir containing the YAML file and provide the path to the dapr run command with the flag --components-path.

Last modified February 16, 2021: Merge pull request #1235 from dapr/update-v0.11 (b4e9fbb)