Add Hazelcast Jet Helm Chart (#9372)

* Add Hazelcast Jet Helm Chart Signed-off-by: Emin Demirci <emin@hazelcast.com> * Fix linter errors around whitespaces Signed-off-by: Emin Demirci <emin@hazelcast.com> * Added graceful shutdown option Signed-off-by: Emin Demirci <emin@hazelcast.com> * Update stable/hazelcast-jet/README.md Co-Authored-By: eminn <emin@hazelcast.com> Signed-off-by: Emin Demirci <emin@hazelcast.com>
2026-08-23 22:37:45 +00:00 · 2018-12-19 04:46:05 -08:00
parent 3013c78b73
commit 464524cbf9
13 changed files with 654 additions and 0 deletions
@@ -0,0 +1,22 @@
+# Patterns to ignore when building packages.
+# This supports shell glob matching, relative path matching, and
+# negation (prefixed with !). Only one pattern per line.
+.DS_Store
+# Common VCS dirs
+.git/
+.gitignore
+.bzr/
+.bzrignore
+.hg/
+.hgignore
+.svn/
+# Common backup files
+*.swp
+*.bak
+*.tmp
+*~
+# Various IDEs
+.project
+.idea/
+*.tmproj
+
@@ -0,0 +1,23 @@
+apiVersion: v1
+appVersion: "0.7"
+description: Hazelcast Jet is an application embeddable, distributed computing engine built on top of Hazelcast In-Memory Data Grid (IMDG). With Hazelcast IMDG providing storage functionality, Hazelcast Jet performs parallel execution to enable data-intensive applications to operate in near real-time.
+name: hazelcast-jet
+version: 1.0.0
+keywords:
+- hazelcast
+- jet
+- streaming
+home: http://jet.hazelcast.org/
+icon: http://hazelcast.com/images/logos/Hazelcast-Jet-Logo-Blue_Light_Icon_200px.png
+sources:
+- https://github.com/hazelcast/hazelcast-jet
+maintainers:
+- name: emin
+  email: emin@hazelcast.com
+- name: leszko
+  email: rafal@hazelcast.com
+- name: googlielmo
+  email: guglielmo@hazelcast.com
+- name: mesutcelik
+  email: mesut@hazelcast.com
+engine: gotpl
@@ -0,0 +1,10 @@
+approvers:
+- eminn
+- leszko
+- mesutcelik
+- googlielmo
+reviewers:
+- eminn
+- leszko
+- mesutcelik
+- googlielmo
@@ -0,0 +1,171 @@
+# Hazelcast Jet
+
+[Hazelcast Jet](http://jet.hazelcast.org) is a distributed computing
+platform built for high-performance stream processing and fast batch
+processing. It embeds Hazelcast In-Memory Data Grid (IMDG) to provide
+a lightweight, simple-to-deploy package that includes scalable
+in-memory storage.
+
+Visit [jet.hazelcast.org](http://jet.hazelcast.org) to learn more
+about the architecture and use cases.
+
+## Quick Start
+
+```bash
+$ helm install hazelcast/hazelcast-jet
+```
+
+## Introduction
+
+This chart bootstraps a [Hazelcast Jet](https://github.com/hazelcast/hazelcast-jet-docker) deployments on a [Kubernetes](http://kubernetes.io) cluster using the [Helm](https://helm.sh) package manager.
+
+## Prerequisites
+
+- Kubernetes 1.9+
+
+## Installing the Chart
+
+To install the chart with the release name `my-release`:
+
+```bash
+$ helm install --name my-release hazelcast/hazelcast-jet
+```
+
+The command deploys Hazelcast Jet on the Kubernetes cluster in the default configuration. The [configuration](#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:
+
+```bash
+$ 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.
+
+| Parameter                                  | Description                                                                                                    | Default                                              |
+|--------------------------------------------|----------------------------------------------------------------------------------------------------------------|------------------------------------------------------|
+| `image.repository`                         | Hazelcast Jet Image name                                                                                       | `hazelcast/hazelcast-jet`                            |
+| `image.tag`                                | Hazelcast Jet Image tag                                                                                        | `{VERSION}`                                          |
+| `image.pullPolicy`                         | Image pull policy                                                                                              | `IfNotPresent`                                       |
+| `image.pullSecrets`                        | Specify docker-registry secret names as an array                                                               | `nil`                                                |
+| `cluster.memberCount`                      | Number of Hazelcast Jet members                                                                                | 2                                                    |
+| `jet.rest`                                 | Enable REST endpoints for Hazelcast Jet member                                                                 | `true`                                               |
+| `jet.javaOpts`                             | Additional JAVA_OPTS properties for Hazelcast Jet member                                                       | `nil`                                                |
+| `jet.configurationFiles`                   | Hazelcast configuration files                                                                                  | `{DEFAULT_HAZELCAST_XML}`                            |
+| `nodeSelector`                             | Hazelcast Node labels for pod assignment                                                                       | `nil`                                                |
+| `gracefulShutdown.enabled`                 | Turn on and off Graceful Shutdown                                                                              | `true`                                               |
+| `gracefulShutdown.maxWaitSeconds`          | Maximum time to wait for the Hazelcast Jet POD to shut down                                                    | `600`                                                |
+| `livenessProbe.enabled`                    | Turn on and off liveness probe                                                                                 | `true`                                               |
+| `livenessProbe.initialDelaySeconds`        | Delay before liveness probe is initiated                                                                       | `30`                                                 |
+| `livenessProbe.periodSeconds`              | How often to perform the probe                                                                                 | `10`                                                 |
+| `livenessProbe.timeoutSeconds`             | When the probe times out                                                                                       | `5`                                                  |
+| `livenessProbe.successThreshold`           | Minimum consecutive successes for the probe to be considered successful after having failed                    | `1`                                                  |
+| `livenessProbe.failureThreshold`           | Minimum consecutive failures for the probe to be considered failed after having succeeded.                     | `3`                                                  |
+| `readinessProbe.enabled`                   | Turn on and off readiness probe                                                                                | `true`                                               |
+| `readinessProbe.initialDelaySeconds`       | Delay before readiness probe is initiated                                                                      | `30`                                                 |
+| `readinessProbe.periodSeconds`             | How often to perform the probe                                                                                 | `10`                                                 |
+| `readinessProbe.timeoutSeconds`            | When the probe times out                                                                                       | `1`                                                  |
+| `readinessProbe.successThreshold`          | Minimum consecutive successes for the probe to be considered successful after having failed                    | `1`                                                  |
+| `readinessProbe.failureThreshold`          | Minimum consecutive failures for the probe to be considered failed after having succeeded.                     | `3`                                                  |
+| `resources`                                | CPU/Memory resource requests/limits                                                                            | `nil`                                                |
+| `service.type`                             | Kubernetes service type ('ClusterIP', 'LoadBalancer', or 'NodePort')                                           | `ClusterIP`                                          |
+| `service.port`                             | Kubernetes service port                                                                                        | `5701`                                               |
+| `rbac.create`                              | Enable installing RBAC Role authorization                                                                      | `true`                                               |
+| `serviceAccount.create`                    | Enable installing Service Account                                                                              | `true`                                               |
+| `serviceAccount.name`                      | Name of Service Account, if not set, the name is generated using the fullname template                         | `nil`                                                |
+
+Specify each parameter using the `--set key=value[,key=value]` argument to `helm install`. For example,
+
+```bash
+$ helm install --name my-release \
+  --set cluster.memberCount=3,serviceAccount.create=false \
+    stable/hazelcast-jet
+```
+
+The above command sets number of Hazelcast Jet members to 3 and disables REST endpoints.
+
+Alternatively, a YAML file that specifies the values for the parameters can be provided while installing the chart. For example,
+
+```bash
+$ helm install --name my-release -f values.yaml hazelcast/hazelcast-jet
+```
+
+> **Tip**: You can use the default [values.yaml](values.yaml)
+
+## Custom Hazelcast IMDG and Jet configuration
+
+Custom Hazelcast IMDG and Hazelcast Jet configuration can be specified inside `values.yaml`, as the `jet.configurationFiles.hazelcast.xml` and `jet.configurationFiles.hazelcast-jet.xml` properties.
+
+```yaml
+jet:
+  configurationFiles:
+    hazelcast.xml: |-
+      <?xml version="1.0" encoding="UTF-8"?>
+      <hazelcast xsi:schemaLocation="http://www.hazelcast.com/schema/config hazelcast-config-3.10.xsd"
+                     xmlns="http://www.hazelcast.com/schema/config"
+                     xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
+    
+        <properties>
+          <property name="hazelcast.discovery.enabled">true</property>
+        </properties>
+        <network>
+          <join>
+            <multicast enabled="false"/>
+            <tcp-ip enabled="false" />
+            <discovery-strategies>
+              <discovery-strategy enabled="true" class="com.hazelcast.kubernetes.HazelcastKubernetesDiscoveryStrategy">
+                <properties>
+                  <property name="service-name">${serviceName}</property>
+                  <property name="namespace">${namespace}</property>
+                </properties>
+              </discovery-strategy>
+            </discovery-strategies>
+          </join>
+        </network>
+        <!-- Custom Configuration Placeholder -->
+      </hazelcast>
+    hazelcast-jet.xml: |-
+      <?xml version="1.0" encoding="UTF-8"?>
+      <hazelcast-jet xsi:schemaLocation="http://www.hazelcast.com/schema/jet-config hazelcast-jet-config-0.8.xsd"
+                    xmlns="http://www.hazelcast.com/schema/jet-config"
+                    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
+          <instance>
+              <!-- number of threads in the cooperative thread pool -->
+            <cooperative-thread-count>8</cooperative-thread-count>
+              <!-- period between flow control packets in milliseconds -->
+            <flow-control-period>100</flow-control-period>
+              <!-- number of backup copies to configure for Hazelcast IMaps used internally in a Jet job -->
+            <backup-count>1</backup-count>
+          </instance>
+          <!-- custom properties which can be read in the user code -->
+          <properties>
+            <property name="custom.property">custom property</property>
+          </properties>
+          <edge-defaults>
+              <!-- capacity of the concurrent SPSC queue between each two processors -->
+            <queue-size>1024</queue-size>
+              <!-- network packet size limit in bytes, only applies to distributed edges -->
+            <packet-size-limit>16384</packet-size-limit>
+              <!-- receive window size multiplier, only applies to distributed edges -->
+            <receive-window-multiplier>3</receive-window-multiplier>
+          </edge-defaults>
+          <!-- whether metrics collection is enabled -->
+          <metrics enabled="true">
+              <!-- the number of seconds the metrics will be retained on the instance -->
+              <retention-seconds>120</retention-seconds>
+              <!-- the metrics collection interval in seconds -->
+              <collection-interval-seconds>5</collection-interval-seconds>
+              <!-- whether metrics should be collected for data structures. Metrics
+                  collection can have some overhead if there is a large number of data
+                  structures -->
+              <metrics-for-data-structures>false</metrics-for-data-structures>
+          </metrics>
+      </hazelcast-jet>
+```
@@ -0,0 +1,61 @@
+** Hazelcast Jet cluster is being deployed! **
+
+-------------------------------------------------------------------------------
+To access Hazelcast Jet within the Kubernetes cluster:
+
+- Use Hazelcast Client with Kubernetes Discovery Strategy pointing to DNS: {{ template "hazelcast-jet.fullname" . }}.{{ .Release.Namespace }}.svc.cluster.local. Read more at: https://github.com/hazelcast/hazelcast-kubernetes.
+
+{{- if .Values.jet.rest }}
+- Use REST healtcheck endpoint:
+  $ curl http://{{ template "hazelcast-jet.fullname" . }}.{{ .Release.Namespace }}.svc.cluster.local:5701/hazelcast/health
+{{- end }}
+
+-------------------------------------------------------------------------------
+
+To access Hazelcast from outside the Kubernetes cluster:
+
+- Use Hazelcast Client with Smart Routing disabled:
+{{- if contains "LoadBalancer" .Values.service.type }}
+  *) Check service external IP:
+     $ export SERVICE_IP=$(kubectl get svc --namespace {{ .Release.Namespace }} {{ template "hazelcast-jet.fullname" . }} -o jsonpath='{.status.loadBalancer.ingress[0].ip}')
+  *) In Hazelcast Client configuration:
+     clientConfig.getNetworkConfig().setSmartRouting(false);
+     clientConfig.getNetworkConfig().addAddress("$SERVICE_IP:{{ .Values.service.port }}");
+{{- else if contains "ClusterIP" .Values.service.type }}
+  *) Forward port from POD:
+     $ export POD=$(kubectl get pods --namespace {{ .Release.Namespace }} -l "app={{ template "hazelcast-jet.name" . }}" -o jsonpath="{.items[0].metadata.name}")
+     $ kubectl port-forward --namespace {{ .Release.Namespace }} $POD 5701:5701
+  *) In Hazelcast Client configure:
+     clientConfig.getNetworkConfig().setSmartRouting(false);
+     clientConfig.getNetworkConfig().addAddress("127.0.0.1:5701");
+{{- else if contains "NodePort" .Values.service.type }}
+  *) Check Node IP and Port:
+     $ export NODE_IP=$(kubectl get nodes --namespace {{ .Release.Namespace }} -o jsonpath="{.items[0].status.addresses[0].address}")
+     $ export NODE_PORT=$(kubectl get --namespace {{ .Release.Namespace }} -o jsonpath="{.spec.ports[0].nodePort}" services {{ template "hazelcast-jet.fullname" . }})
+  *) In Hazelcast Client configure:
+     clientConfig.getNetworkConfig().setSmartRouting(false);
+     clientConfig.getNetworkConfig().addAddress("$NODE_IP:$NODE_PORT");
+{{- end }}
+
+{{- if .Values.jet.rest }}
+
+- Use REST healtcheck endpoint:
+{{- if contains "LoadBalancer" .Values.service.type }}
+  *) Check service external IP:
+     $ export SERVICE_IP=$(kubectl get svc --namespace {{ .Release.Namespace }} {{ template "hazelcast-jet.fullname" . }} -o jsonpath='{.status.loadBalancer.ingress[0].ip}')
+  *) Get health info:
+     $ curl http://$SERVICE_IP:{{ .Values.service.port }}/hazelcast/health
+{{- else if contains "ClusterIP" .Values.service.type }}
+  *) Forward port from POD:
+     $ export POD=$(kubectl get pods --namespace {{ .Release.Namespace }} -l "app={{ template "hazelcast-jet.name" . }}" -o jsonpath="{.items[0].metadata.name}")
+     $ kubectl port-forward --namespace {{ .Release.Namespace }} $POD 5701:5701
+  *) Get health info:
+     $ curl http://127.0.0.1:5701/hazelcast/health
+{{- else if contains "NodePort" .Values.service.type }}
+  *) Check Node IP and Port:
+     $ export NODE_IP=$(kubectl get nodes --namespace {{ .Release.Namespace }} -o jsonpath="{.items[0].status.addresses[0].address}")
+     $ export NODE_PORT=$(kubectl get --namespace {{ .Release.Namespace }} -o jsonpath="{.spec.ports[0].nodePort}" services {{ template "hazelcast-jet.fullname" . }})
+  *) Get health info:
+     $ curl http://$NODE_IP:$NODE_PORT/hazelcast/health
+{{- end }}
+{{- end }}
@@ -0,0 +1,43 @@
+{{/* vim: set filetype=mustache: */}}
+{{/*
+Expand the name of the chart.
+*/}}
+{{- define "hazelcast-jet.name" -}}
+{{- default .Chart.Name .Values.nameOverride | trunc 63 | trimSuffix "-" -}}
+{{- end -}}
+
+{{/*
+Create a default fully qualified app name.
+We truncate at 63 chars because some Kubernetes name fields are limited to this (by the DNS naming spec).
+If release name contains chart name it will be used as a full name.
+*/}}
+{{- define "hazelcast-jet.fullname" -}}
+{{- if .Values.fullnameOverride -}}
+{{- .Values.fullnameOverride | trunc 63 | trimSuffix "-" -}}
+{{- else -}}
+{{- $name := default .Chart.Name .Values.nameOverride -}}
+{{- if contains $name .Release.Name -}}
+{{- .Release.Name | trunc 63 | trimSuffix "-" -}}
+{{- else -}}
+{{- printf "%s-%s" .Release.Name $name | trunc 63 | trimSuffix "-" -}}
+{{- end -}}
+{{- end -}}
+{{- end -}}
+
+{{/*
+Create chart name and version as used by the chart label.
+*/}}
+{{- define "hazelcast-jet.chart" -}}
+{{- printf "%s-%s" .Chart.Name .Chart.Version | replace "+" "_" | trunc 63 | trimSuffix "-" -}}
+{{- end -}}
+
+{{/*
+Create the name of the service account to use
+*/}}
+{{- define "hazelcast-jet.serviceAccountName" -}}
+{{- if .Values.serviceAccount.create -}}
+    {{ default (include "hazelcast-jet.fullname" .) .Values.serviceAccount.name }}
+{{- else -}}
+    {{ default "default" .Values.serviceAccount.name }}
+{{- end -}}
+{{- end -}}
@@ -0,0 +1,16 @@
+{{- if .Values.jet.configurationFiles }}
+apiVersion: v1
+kind: ConfigMap
+metadata:
+  name: {{ template "hazelcast-jet.fullname" . }}-configuration
+  labels:
+    app: {{ template "hazelcast-jet.name" . }}
+    chart: {{ template "hazelcast-jet.chart" . }}
+    release: "{{ .Release.Name }}"
+    heritage: "{{ .Release.Service }}"
+data:
+{{- range $key, $val := .Values.jet.configurationFiles }}
+  {{ $key }}: |-
+{{ $val | indent 4}}
+{{- end }}
+{{- end -}}
@@ -0,0 +1,19 @@
+{{- if .Values.rbac.create -}}
+apiVersion: rbac.authorization.k8s.io/v1
+kind: Role
+metadata:
+  name: {{ template "hazelcast-jet.fullname" . }}
+  labels:
+    app: {{ template "hazelcast-jet.name" . }}
+    chart: {{ template "hazelcast-jet.chart" . }}
+    release: "{{ .Release.Name }}"
+    heritage: "{{ .Release.Service }}"
+rules:
+- apiGroups:
+  - ""
+  resources:
+  - endpoints
+  verbs:
+  - get
+  - list
+{{- end -}}
@@ -0,0 +1,19 @@
+{{- if .Values.rbac.create -}}
+apiVersion: rbac.authorization.k8s.io/v1
+kind: RoleBinding
+metadata:
+  name: {{ template "hazelcast-jet.fullname" . }}
+  labels:
+    app: {{ template "hazelcast-jet.name" . }}
+    chart: {{ template "hazelcast-jet.chart" . }}
+    release: "{{ .Release.Name }}"
+    heritage: "{{ .Release.Service }}"
+roleRef:
+  apiGroup: rbac.authorization.k8s.io
+  kind: Role
+  name: {{ template "hazelcast-jet.fullname" . }}
+subjects:
+- kind: ServiceAccount
+  name: {{ template "hazelcast-jet.serviceAccountName" . }}
+  namespace: {{ .Release.Namespace }}
+{{ end }}
@@ -0,0 +1,22 @@
+apiVersion: v1
+kind: Service
+metadata:
+  name: {{ template "hazelcast-jet.fullname" . }}
+  labels:
+    app: {{ template "hazelcast-jet.name" . }}
+    chart: {{ template "hazelcast-jet.chart" . }}
+    release: "{{ .Release.Name }}"
+    heritage: "{{ .Release.Service }}"
+spec:
+  type: {{ .Values.service.type }}
+  {{- if .Values.service.clusterIP }}
+  clusterIP: {{ .Values.service.clusterIP }}
+  {{- end }}
+  selector:
+    app: {{ template "hazelcast-jet.name" . }}
+    release: "{{ .Release.Name }}"
+  ports:
+  - protocol: TCP
+    port: {{ .Values.service.port }}
+    targetPort: hazelcast-jet
+    name: hzport
@@ -0,0 +1,11 @@
+{{- if .Values.serviceAccount.create -}}
+apiVersion: v1
+kind: ServiceAccount
+metadata:
+  name: {{ template "hazelcast-jet.serviceAccountName" . }}
+  labels:
+    app: {{ template "hazelcast-jet.name" . }}
+    chart: {{ template "hazelcast-jet.chart" . }}
+    release: "{{ .Release.Name }}"
+    heritage: "{{ .Release.Service }}"
+{{- end -}}
@@ -0,0 +1,76 @@
+apiVersion: apps/v1
+kind: StatefulSet
+metadata:
+  name: {{ template "hazelcast-jet.fullname" . }}
+  labels:
+    app: {{ template "hazelcast-jet.name" . }}
+    chart: {{ template "hazelcast-jet.chart" . }}
+    release: "{{ .Release.Name }}"
+    heritage: "{{ .Release.Service }}"
+spec:
+  replicas: {{ .Values.cluster.memberCount }}
+  selector:
+    matchLabels:
+      app: {{ template "hazelcast-jet.name" . }}
+      release: "{{ .Release.Name }}"
+  template:
+    metadata:
+      labels:
+        app: {{ template "hazelcast-jet.name" . }}
+        release: "{{ .Release.Name }}"
+    spec:
+      {{- if .Values.image.pullSecrets }}
+      imagePullSecrets:
+        {{- range .Values.image.pullSecrets }}
+        - name: {{ . }}
+        {{- end}}
+      {{- end}}
+      {{- if .Values.nodeSelector }}
+      nodeSelector:
+{{ toYaml .Values.nodeSelector | indent 8 }}
+      {{- end }}
+      {{- if .Values.gracefulShutdown.enabled }}
+      terminationGracePeriodSeconds: {{ .Values.gracefulShutdown.maxWaitSeconds }}
+      {{- end }}
+      containers:
+      - name: {{ template "hazelcast-jet.fullname" . }}
+        image: "{{ .Values.image.repository }}:{{ .Values.image.tag }}"
+        imagePullPolicy: {{ .Values.image.pullPolicy | quote }}
+        resources:
+{{ toYaml .Values.resources | indent 10 }}
+        ports:
+        - name: hazelcast-jet
+          containerPort: 5701
+        {{- if .Values.livenessProbe.enabled }}
+        livenessProbe:
+          httpGet:
+            path: /hazelcast/health/node-state
+            port: 5701
+          initialDelaySeconds: {{ .Values.livenessProbe.initialDelaySeconds }}
+          periodSeconds: {{ .Values.livenessProbe.periodSeconds }}
+          timeoutSeconds: {{ .Values.livenessProbe.timeoutSeconds }}
+          successThreshold: {{ .Values.livenessProbe.successThreshold }}
+          failureThreshold: {{ .Values.livenessProbe.failureThreshold }}
+        {{- end }}
+        {{- if .Values.readinessProbe.enabled }}
+        readinessProbe:
+          httpGet:
+            path: /hazelcast/health/node-state
+            port: 5701
+          initialDelaySeconds: {{ .Values.readinessProbe.initialDelaySeconds }}
+          periodSeconds: {{ .Values.readinessProbe.periodSeconds }}
+          timeoutSeconds: {{ .Values.readinessProbe.timeoutSeconds }}
+          successThreshold: {{ .Values.readinessProbe.successThreshold }}
+          failureThreshold: {{ .Values.readinessProbe.failureThreshold }}
+        {{- end }}
+        volumeMounts:
+        - name: hazelcast-jet-storage
+          mountPath: /data/hazelcast-jet
+        env:
+        - name: JAVA_OPTS
+          value: "-Dhazelcast.rest.enabled={{ .Values.jet.rest }} -Dhazelcast.config=/data/hazelcast-jet/hazelcast.xml -Dhazelcast.jet.config=/data/hazelcast-jet/hazelcast-jet.xml -DserviceName={{ template "hazelcast-jet.fullname" . }} -Dnamespace={{ .Release.Namespace }} {{ if .Values.gracefulShutdown.enabled }}-Dhazelcast.shutdownhook.policy=GRACEFUL -Dhazelcast.shutdownhook.enabled=true -Dhazelcast.graceful.shutdown.max.wait={{ .Values.gracefulShutdown.maxWaitSeconds }} {{ end }} {{ .Values.jet.javaOpts }}"
+      serviceAccountName: {{ template "hazelcast-jet.serviceAccountName" . }}
+      volumes:
+      - name: hazelcast-jet-storage
+        configMap:
+          name: {{ template "hazelcast-jet.fullname" . }}-configuration
@@ -0,0 +1,161 @@
+## Hazelcast Jet image version
+## ref: https://hub.docker.com/r/hazelcast/hazelcast-jet/tags/
+##
+image:
+  # repository is the Hazelcast Jet image name
+  repository: "hazelcast/hazelcast-jet"
+  # tag is the Hazelcast Jet image tag
+  tag: "0.7"
+  # pullPolicy is the Docker image pull policy
+  # It's recommended to change this to 'Always' if the image tag is 'latest'
+  # ref: http://kubernetes.io/docs/user-guide/images/#updating-images
+  #
+  pullPolicy: IfNotPresent
+  # pullSecrets is an array of docker-registry secret names
+  # Secrets must be manually created in the namespace.
+  # ref: https://kubernetes.io/docs/tasks/configure-pod-container/pull-image-private-registry/
+  # pullSecrets:
+  # - myRegistryKeySecretName
+
+# Cluster settings
+cluster:
+  # memberCount is the number Hazelcast Jet members
+  memberCount: 2
+
+# Hazelcast Jet properties
+jet:
+  # rest is a flag used to enable REST endpoints for Hazelcast Jet member
+  rest: true
+  # javaOpts are additional JAVA_OPTS properties for Hazelcast Jet member
+  javaOpts:
+  # configurationFiles are Hazelcast Jet configuration files
+  configurationFiles:
+    hazelcast.xml: |-
+      <?xml version="1.0" encoding="UTF-8"?>
+      <hazelcast xsi:schemaLocation="http://www.hazelcast.com/schema/config hazelcast-config-3.10.xsd"
+                     xmlns="http://www.hazelcast.com/schema/config"
+                     xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
+        <properties>
+          <property name="hazelcast.discovery.enabled">true</property>
+        </properties>
+        <network>
+          <join>
+            <multicast enabled="false"/>
+            <tcp-ip enabled="false" />
+            <discovery-strategies>
+              <discovery-strategy enabled="true" class="com.hazelcast.kubernetes.HazelcastKubernetesDiscoveryStrategy">
+                <properties>
+                  <property name="service-name">${serviceName}</property>
+                  <property name="namespace">${namespace}</property>
+                </properties>
+              </discovery-strategy>
+            </discovery-strategies>
+          </join>
+        </network>
+      </hazelcast>
+    hazelcast-jet.xml: |-
+      <?xml version="1.0" encoding="UTF-8"?>
+      <hazelcast-jet xsi:schemaLocation="http://www.hazelcast.com/schema/jet-config hazelcast-jet-config-0.8.xsd"
+                    xmlns="http://www.hazelcast.com/schema/jet-config"
+                    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
+          <instance>
+              <!-- number of threads in the cooperative thread pool -->
+            <cooperative-thread-count>8</cooperative-thread-count>
+              <!-- period between flow control packets in milliseconds -->
+            <flow-control-period>100</flow-control-period>
+              <!-- number of backup copies to configure for Hazelcast IMaps used internally in a Jet job -->
+            <backup-count>1</backup-count>
+          </instance>
+          <!-- custom properties which can be read in the user code -->
+          <properties>
+            <property name="custom.property">custom property</property>
+          </properties>
+          <edge-defaults>
+              <!-- capacity of the concurrent SPSC queue between each two processors -->
+            <queue-size>1024</queue-size>
+              <!-- network packet size limit in bytes, only applies to distributed edges -->
+            <packet-size-limit>16384</packet-size-limit>
+              <!-- receive window size multiplier, only applies to distributed edges -->
+            <receive-window-multiplier>3</receive-window-multiplier>
+          </edge-defaults>
+          <!-- whether metrics collection is enabled -->
+          <metrics enabled="true">
+              <!-- the number of seconds the metrics will be retained on the instance -->
+              <retention-seconds>120</retention-seconds>
+              <!-- the metrics collection interval in seconds -->
+              <collection-interval-seconds>5</collection-interval-seconds>
+              <!-- whether metrics should be collected for data structures. Metrics
+                  collection can have some overhead if there is a large number of data
+                  structures -->
+              <metrics-for-data-structures>false</metrics-for-data-structures>
+          </metrics>
+      </hazelcast-jet>
+
+# nodeSelector is an array of Hazelcast Node labels for POD assignments
+# ref: https://kubernetes.io/docs/concepts/configuration/assign-pod-node/#nodeselector
+nodeSelector: {}
+
+gracefulShutdown:
+  enabled: true
+  maxWaitSeconds: 600
+
+# Hazelcast Liveness probe
+livenessProbe:
+  # enabled is a flag to used to enable liveness probe
+  enabled: true
+  # initialDelaySeconds is a delay before liveness probe is initiated
+  initialDelaySeconds: 30
+  # periodSeconds decides how often to perform the probe
+  periodSeconds: 10
+  # timeoutSeconds decides when the probe times out
+  timeoutSeconds: 5
+  # successThreshold is the minimum consecutive successes for the probe to be considered successful after having failed
+  successThreshold: 1
+  # failureThreshold is the minimum consecutive failures for the probe to be considered failed after having succeeded
+  failureThreshold: 3
+
+# Hazelcast Readiness probe
+readinessProbe:
+  # enabled is a flag to used to enable readiness probe
+  enabled: true
+  # initialDelaySeconds is a delay before readiness probe is initiated
+  initialDelaySeconds: 30
+  # periodSeconds decides how often to perform the probe
+  periodSeconds: 10
+  # timeoutSeconds decides when the probe times out
+  timeoutSeconds: 1
+  # successThreshold is the minimum consecutive successes for the probe to be considered successful after having failed
+  successThreshold: 1
+  # failureThreshold is the minimum consecutive failures for the probe to be considered failed after having succeeded
+  failureThreshold: 3
+
+# Configure resource requests and limits
+# ref: http://kubernetes.io/docs/user-guide/compute-resources/
+#
+# resources:
+#   requests:
+#     memory: 256Mi
+#     cpu: 100m
+
+# Hazelcast Service properties
+service:
+  # type defines the Kubernetes service type ('ClusterIP', 'LoadBalancer', or 'NodePort')
+  type: ClusterIP
+  # port is the Kubernetes service port
+  port: 5701
+  # clusterIP set to None makes the service headless
+  # It is required if DNS Lookup is used (https://github.com/hazelcast/hazelcast-kubernetes#dns-lookup)
+  # clusterIP: "None"
+
+# Role-based Access Control
+rbac:
+  # Specifies whether RBAC resources should be created
+  # It is not required if DNS Lookup is used (https://github.com/hazelcast/hazelcast-kubernetes#dns-lookup)
+  create: true
+
+serviceAccount:
+  # Specifies whether a ServiceAccount should be created
+  create: true
+  # The name of the ServiceAccount to use.
+  # If not set and create is true, a name is generated using the fullname template
+  name: