DEPRECATED - Hazelcast

Hazelcast IMDG is the most widely used in-memory data grid with hundreds of thousands of installed clusters around the world. It offers caching solutions ensuring that data is in the right place when it’s needed for optimal performance.

This Helm chart is deprecated

Given the stable deprecation timeline, the Hazelcast IMDG Helm chart is now located at hazelcast/charts.

The Hazelcast IMDG chart repo is also avaliable at Helm Hub.

To install new chart, you just need to add the related repo and use hazelcast/hazelcast instead of stable/hazelcast as a chart name.

$ helm repo add hazelcast https://hazelcast-charts.s3.amazonaws.com/
$ helm install my-release hazelcast/hazelcast           # Helm 3
$ helm install --name my-release hazelcast-hazelcast   # Helm 2

Quick Start

$ helm install my-release stable/hazelcast        # Helm 3
$ helm install --name my-release stable/hazelcast # Helm 2

Introduction

This chart bootstraps a Hazelcast and Management Center deployments on a Kubernetes cluster using the Helm package manager.

Prerequisites

• Kubernetes 1.9+

Installing the Chart

To install the chart with the release name my-release:

$ helm install my-release stable/hazelcast        # Helm 3
$ helm install --name my-release stable/hazelcast # Helm 2

The command deploys Hazelcast on the Kubernetes cluster in the default configuration. The configuration section lists the parameters that can be configured during installation.

Tip: List all releases using helm list

Uninstalling the Chart

To uninstall/delete the my-release deployment:

$ helm delete my-release

The command removes all the Kubernetes components associated with the chart and deletes the release.

Configuration

The following table lists the configurable parameters of the Hazelcast chart and their default values.

Specify each parameter using the --set key=value,key=value argument to helm install. For example,

# Helm 3
$ helm install my-release \
  --set cluster.memberCount=3 \
    stable/hazelcast

# Helm 2
$ helm install --name my-release \
  --set cluster.memberCount=3 \
    stable/hazelcast

The above command sets number of Hazelcast members to 3.

Alternatively, a YAML file that specifies the values for the parameters can be provided while installing the chart. For example,

$ helm install my-release -f values.yaml stable/hazelcast        # Helm 3
$ helm install --name my-release -f values.yaml stable/hazelcast # Helm 2

Tip: You can use the default values.yaml

Custom Hazelcast configuration

Custom Hazelcast configuration can be specified inside values.yaml, as the hazelcast.yaml property.

hazelcast:
   yaml:
    hazelcast:
      network:
        join:
          multicast:
            enabled: false
          kubernetes:
            enabled: true
            service-name: ${serviceName}
            namespace: ${namespace}
            resolve-not-ready-addresses: true
        <!-- Custom Configuration Placeholder -->

Notable changes

2.8.0

Hazelcast REST Endpoints are no longer enabled by default and the parameter hazelcast.rest is no longer available. If you want to enable REST, please add the related endpoint-groups to the Hazelcast Configuration. For example:

rest-api:
  enabled: true
  endpoint-groups:
    HEALTH_CHECK:
      enabled: true
    CLUSTER_READ:
      enabled: true
    CLUSTER_WRITE:
      enabled: true