charts/bitnami/dataplatform-bp2

Data Platform Blueprint 2 with Kafka-Spark-Elasticsearch

Enterprise applications increasingly rely on large amounts of data, that needs be distributed, processed, and stored. Open source and commercial supported software stacks are available to implement a data platform, that can offer common data management services, accelerating the development and deployment of data hungry business applications.

This Helm chart enables the fully automated Kubernetes deployment of such multi-stack data platform, covering the following software components:

• Apache Kafka – Data distribution bus with buffering capabilities
• Apache Spark – In-memory data analytics
• Elasticsearch with Kibana – Data persistence and search
• Logstash - Data Processing Pipeline
• Data Platform Prometheus Exporter - Prometheus exporter that emits the health metrics of the data platform

These containerized stateful software stacks are deployed in multi-node cluster configurations, which is defined by the Helm Chart blueprint for this data platform deployment, covering:

• Pod placement rules – Affinity rules to ensure placement diversity to prevent single point of failures and optimize load distribution
• Pod resource sizing rules – Optimized Pod and JVM sizing settings for optimal performance and efficient resource usage
• Default settings to ensure Pod access security
• Optional Tanzu Observability framework configuration

In addition to the Pod resource optimizations, this blueprint is validated and tested to provide Kubernetes node count and sizing recommendations (see Kubernetes Cluster Requirements) to facilitate cloud platform capacity planning. The goal is optimize the number of required Kubernetes nodes in order to optimize server resource usage and, at the same time, ensuring runtime and resource diversity.

The first release of this blueprint defines a small size data platform deployment, deployed on 3 Kubernetes application nodes with physical diverse underlying server infrastructure.

Use cases for this small size data platform setup include: data and application evaluation, development, and functional testing.

TL;DR

$ helm repo add bitnami https://charts.bitnami.com/bitnami
$ helm install my-release bitnami/dataplatform-bp2

Introduction

This chart bootstraps Data Platform Blueprint-2 deployment on a Kubernetes cluster using the Helm package manager.

The "Small" size data platform in default configuration deploys the following:

1. Zookeeper with 3 nodes to be used for both Kafka
2. Kafka with 3 nodes using the zookeeper deployed above
3. Elasticsearch with 3 master nodes, 2 data nodes, 2 coordinating nodes and 1 kibana node
4. Logstash with 2 nodes
5. Spark with 1 Master and 2 worker nodes
6. Data Platform Metrics emitter and Prometheus exporter

The data platform can be optionally deployed with the Tanzu observability framework. In that case, the wavefront collectors will be set up as a DaemonSet to collect the Kubernetes cluster metrics to enable runtime feed into the Tanzu Observability service. It will also be pre-configured to scrape the metrics from the Prometheus endpoint that each application (Kafka/Spark/Elasticsearch/Logstash) emits the metrics to.

Bitnami charts can be used with Kubeapps for deployment and management of Helm Charts in clusters. This Helm chart has been tested on top of Bitnami Kubernetes Production Runtime (BKPR). Deploy BKPR to get automated TLS certificates, logging and monitoring for your applications.

Prerequisites

• Kubernetes 1.12+
• Helm 3.1.0
• PV provisioner support in the underlying infrastructure

Kubernetes Cluster requirements

Below are the minimum Kubernetes Cluster requirements for "Small" size data platform:

Data Platform Size	Kubernetes Cluster Size	Usage
Small	1 Master Node (2 CPU, 4Gi Memory) 3 Worker Nodes (4 CPU, 32Gi Memory)	Data and application evaluation, development, and functional testing

Installing the Chart

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

$ helm repo add bitnami https://charts.bitnami.com/bitnami
$ helm install my-release bitnami/dataplatform-bp2

These commands deploy Data Platform on the Kubernetes cluster in the default configuration. The Parameters section lists recommended configurations of the parameters to bring up an optimal and resilient data platform. Please refer the individual charts for the remaining set of configurable parameters.

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.

Parameters

Global parameters

Name	Description	Value
global.imageRegistry	Global Docker image registry	""
global.imagePullSecrets	Global Docker registry secret names as an array	[]
global.storageClass	Global StorageClass for Persistent Volume(s)	""

Common parameters

Name	Description	Value
commonLabels	Labels to add to all deployed objects	{}
commonAnnotations	Annotations to add to all deployed objects	{}

Data Platform Chart parameters

Name	Description	Value
dataplatform.serviceAccount.create	Specifies whether a ServiceAccount should be created	true
dataplatform.serviceAccount.name	The name of the ServiceAccount to create	""
dataplatform.serviceAccount.automountServiceAccountToken	Allows auto mount of ServiceAccountToken on the serviceAccount created	true
dataplatform.rbac.create	Whether to create & use RBAC resources or not	true
dataplatform.exporter.enabled	Start a prometheus exporter	true
dataplatform.exporter.image.registry	dataplatform exporter image registry	docker.io
dataplatform.exporter.image.repository	dataplatform exporter image repository	bitnami/dataplatform-exporter
dataplatform.exporter.image.tag	dataplatform exporter image tag (immutable tags are recommended)	0.0.11-scratch-r3
dataplatform.exporter.image.pullPolicy	dataplatform exporter image pull policy	IfNotPresent
dataplatform.exporter.image.pullSecrets	Specify docker-registry secret names as an array	[]
dataplatform.exporter.livenessProbe.enabled	Enable livenessProbe	true
dataplatform.exporter.livenessProbe.initialDelaySeconds	Initial delay seconds for livenessProbe	10
dataplatform.exporter.livenessProbe.periodSeconds	Period seconds for livenessProbe	5
dataplatform.exporter.livenessProbe.timeoutSeconds	Timeout seconds for livenessProbe	15
dataplatform.exporter.livenessProbe.failureThreshold	Failure threshold for livenessProbe	15
dataplatform.exporter.livenessProbe.successThreshold	Success threshold for livenessProbe	1
dataplatform.exporter.readinessProbe.enabled	Enable readinessProbe	true
dataplatform.exporter.readinessProbe.initialDelaySeconds	Initial delay seconds for readinessProbe	10
dataplatform.exporter.readinessProbe.periodSeconds	Period seconds for readinessProbe	5
dataplatform.exporter.readinessProbe.timeoutSeconds	Timeout seconds for readinessProbe	15
dataplatform.exporter.readinessProbe.failureThreshold	Failure threshold for readinessProbe	15
dataplatform.exporter.readinessProbe.successThreshold	Success threshold for readinessProbe	15
dataplatform.exporter.startupProbe.enabled	Enable startupProbe	false
dataplatform.exporter.startupProbe.initialDelaySeconds	Initial delay seconds for startupProbe	10
dataplatform.exporter.startupProbe.periodSeconds	Period seconds for startupProbe	5
dataplatform.exporter.startupProbe.timeoutSeconds	Timeout seconds for startupProbe	15
dataplatform.exporter.startupProbe.failureThreshold	Failure threshold for startupProbe	15
dataplatform.exporter.startupProbe.successThreshold	Success threshold for startupProbe	15
dataplatform.exporter.containerPorts.http	Data Platform Prometheus exporter port	9090
dataplatform.exporter.priorityClassName	exporter priorityClassName	""
dataplatform.exporter.command	Override Data Platform Exporter entrypoint string.	[]
dataplatform.exporter.args	Arguments for the provided command if needed	[]
dataplatform.exporter.resources.limits	The resources limits for the container	{}
dataplatform.exporter.resources.requests	The requested resources for the container	{}
dataplatform.exporter.containerSecurityContext.enabled	Enable Data Platform exporter containers' Security Context	true
dataplatform.exporter.containerSecurityContext.runAsUser	User ID for the containers.	1001
dataplatform.exporter.containerSecurityContext.runAsNonRoot	Enable Data Platform exporter containers' Security Context runAsNonRoot	true
dataplatform.exporter.podSecurityContext.enabled	Enable Data Platform exporter pods' Security Context	true
dataplatform.exporter.podSecurityContext.fsGroup	Group ID for the pods.	1001
dataplatform.exporter.podAffinityPreset	Data Platform exporter pod affinity preset. Ignored if affinity is set. Allowed values: soft or hard	""
dataplatform.exporter.podAntiAffinityPreset	Data Platform exporter pod anti-affinity preset. Ignored if affinity is set. Allowed values: soft or hard	soft
dataplatform.exporter.nodeAffinityPreset.type	Data Platform exporter node affinity preset type. Ignored if affinity is set. Allowed values: soft or hard	""
dataplatform.exporter.nodeAffinityPreset.key	Data Platform exporter node label key to match Ignored if affinity is set.	""
dataplatform.exporter.nodeAffinityPreset.values	Data Platform exporter node label values to match. Ignored if affinity is set.	[]
dataplatform.exporter.affinity	Affinity settings for exporter pod assignment. Evaluated as a template	{}
dataplatform.exporter.nodeSelector	Node labels for exporter pods assignment. Evaluated as a template	{}
dataplatform.exporter.tolerations	Tolerations for exporter pods assignment. Evaluated as a template	[]
dataplatform.exporter.podLabels	Additional labels for Metrics exporter pod	{}
dataplatform.exporter.podAnnotations	Additional annotations for Metrics exporter pod	{}
dataplatform.exporter.customLivenessProbe	Override default liveness probe	{}
dataplatform.exporter.customReadinessProbe	Override default readiness probe	{}
dataplatform.exporter.customStartupProbe	Override default startup probe	{}
dataplatform.exporter.updateStrategy.type	Update strategy - only really applicable for deployments with RWO PVs attached	RollingUpdate
dataplatform.exporter.updateStrategy.rollingUpdate	Deployment rolling update configuration parameters	{}
dataplatform.exporter.extraEnvVars	Additional environment variables to set	[]
dataplatform.exporter.extraEnvVarsCM	ConfigMap with extra environment variables	""
dataplatform.exporter.extraEnvVarsSecret	Secret with extra environment variables	""
dataplatform.exporter.extraVolumes	Extra volumes to add to the deployment	[]
dataplatform.exporter.extraVolumeMounts	Extra volume mounts to add to the container	[]
dataplatform.exporter.initContainers	Add init containers to the %%MAIN_CONTAINER_NAME%% pods	[]
dataplatform.exporter.sidecars	Add sidecars to the %%MAIN_CONTAINER_NAME%% pods	[]
dataplatform.exporter.service.type	Service type for default Data Platform Prometheus exporter service	ClusterIP
dataplatform.exporter.service.annotations	Exporter service annotations	{}
dataplatform.exporter.service.labels	Additional labels for Data Platform exporter service	{}
dataplatform.exporter.service.ports.http	Kubernetes Service port	9090
dataplatform.exporter.service.loadBalancerIP	Load balancer IP for the Data Platform Exporter Service (optional, cloud specific)	""
dataplatform.exporter.service.nodePorts.http	Node ports for the HTTP exporter service	""
dataplatform.exporter.service.loadBalancerSourceRanges	Exporter Load Balancer Source ranges	[]
dataplatform.exporter.hostAliases	Deployment pod host aliases	[]
dataplatform.emitter.enabled	Start Data Platform metrics emitter	true
dataplatform.emitter.image.registry	Data Platform emitter image registry	docker.io
dataplatform.emitter.image.repository	Data Platform emitter image repository	bitnami/dataplatform-emitter
dataplatform.emitter.image.tag	Data Platform emitter image tag (immutable tags are recommended)	0.0.10-scratch-r4
dataplatform.emitter.image.pullPolicy	Data Platform emitter image pull policy	IfNotPresent
dataplatform.emitter.image.pullSecrets	Specify docker-registry secret names as an array	[]
dataplatform.emitter.livenessProbe.enabled	Enable livenessProbe	true
dataplatform.emitter.livenessProbe.initialDelaySeconds	Initial delay seconds for livenessProbe	10
dataplatform.emitter.livenessProbe.periodSeconds	Period seconds for livenessProbe	5
dataplatform.emitter.livenessProbe.timeoutSeconds	Timeout seconds for livenessProbe	15
dataplatform.emitter.livenessProbe.failureThreshold	Failure threshold for livenessProbe	15
dataplatform.emitter.livenessProbe.successThreshold	Success threshold for livenessProbe	1
dataplatform.emitter.readinessProbe.enabled	Enable readinessProbe	true
dataplatform.emitter.readinessProbe.initialDelaySeconds	Initial delay seconds for readinessProbe	10
dataplatform.emitter.readinessProbe.periodSeconds	Period seconds for readinessProbe	5
dataplatform.emitter.readinessProbe.timeoutSeconds	Timeout seconds for readinessProbe	15
dataplatform.emitter.readinessProbe.failureThreshold	Failure threshold for readinessProbe	15
dataplatform.emitter.readinessProbe.successThreshold	Success threshold for readinessProbe	15
dataplatform.emitter.startupProbe.enabled	Enable startupProbe	false
dataplatform.emitter.startupProbe.initialDelaySeconds	Initial delay seconds for startupProbe	10
dataplatform.emitter.startupProbe.periodSeconds	Period seconds for startupProbe	5
dataplatform.emitter.startupProbe.timeoutSeconds	Timeout seconds for startupProbe	15
dataplatform.emitter.startupProbe.failureThreshold	Failure threshold for startupProbe	15
dataplatform.emitter.startupProbe.successThreshold	Success threshold for startupProbe	15
dataplatform.emitter.containerPorts.http	Data Platform emitter port	8091
dataplatform.emitter.priorityClassName	exporter priorityClassName	""
dataplatform.emitter.command	Override Data Platform entrypoint string.	[]
dataplatform.emitter.args	Arguments for the provided command if needed	[]
dataplatform.emitter.resources.limits	The resources limits for the container	{}
dataplatform.emitter.resources.requests	The requested resources for the container	{}
dataplatform.emitter.containerSecurityContext.enabled	Enable Data Platform emitter containers' Security Context	true
dataplatform.emitter.containerSecurityContext.runAsUser	User ID for the containers.	1001
dataplatform.emitter.containerSecurityContext.runAsNonRoot	Enable Data Platform emitter containers' Security Context runAsNonRoot	true
dataplatform.emitter.podSecurityContext.enabled	Enable Data Platform emitter pods' Security Context	true
dataplatform.emitter.podSecurityContext.fsGroup	Group ID for the pods.	1001
dataplatform.emitter.podAffinityPreset	Data Platform emitter pod affinity preset. Ignored if affinity is set. Allowed values: soft or hard	""
dataplatform.emitter.podAntiAffinityPreset	Data Platform emitter pod anti-affinity preset. Ignored if affinity is set. Allowed values: soft or hard	soft
dataplatform.emitter.nodeAffinityPreset.type	Data Platform emitter node affinity preset type. Ignored if affinity is set. Allowed values: soft or hard	""
dataplatform.emitter.nodeAffinityPreset.key	Data Platform emitter node label key to match Ignored if affinity is set.	""
dataplatform.emitter.nodeAffinityPreset.values	Data Platform emitter node label values to match. Ignored if affinity is set.	[]
dataplatform.emitter.affinity	Affinity settings for emitter pod assignment. Evaluated as a template	{}
dataplatform.emitter.nodeSelector	Node labels for emitter pods assignment. Evaluated as a template	{}
dataplatform.emitter.tolerations	Tolerations for emitter pods assignment. Evaluated as a template	[]
dataplatform.emitter.podLabels	Additional labels for Metrics emitter pod	{}
dataplatform.emitter.podAnnotations	Additional annotations for Metrics emitter pod	{}
dataplatform.emitter.customLivenessProbe	Override default liveness probe%%MAIN_CONTAINER_NAME%%	{}
dataplatform.emitter.customReadinessProbe	Override default readiness probe%%MAIN_CONTAINER_NAME%%	{}
dataplatform.emitter.customStartupProbe	Override default startup probe	{}
dataplatform.emitter.updateStrategy.type	Update strategy - only really applicable for deployments with RWO PVs attached	RollingUpdate
dataplatform.emitter.updateStrategy.rollingUpdate	Deployment rolling update configuration parameters	{}
dataplatform.emitter.extraEnvVars	Additional environment variables to set	[]
dataplatform.emitter.extraEnvVarsCM	ConfigMap with extra environment variables	""
dataplatform.emitter.extraEnvVarsSecret	Secret with extra environment variables	""
dataplatform.emitter.extraVolumes	Extra volumes to add to the deployment	[]
dataplatform.emitter.extraVolumeMounts	Extra volume mounts to add to the container	[]
dataplatform.emitter.initContainers	Add init containers to the %%MAIN_CONTAINER_NAME%% pods	[]
dataplatform.emitter.sidecars	Add sidecars to the %%MAIN_CONTAINER_NAME%% pods	[]
dataplatform.emitter.service.type	Service type for default Data Platform metrics emitter service	ClusterIP
dataplatform.emitter.service.annotations	annotations for Data Platform emitter service	{}
dataplatform.emitter.service.labels	Additional labels for Data Platform emitter service	{}
dataplatform.emitter.service.ports.http	Kubernetes Service port	8091
dataplatform.emitter.service.loadBalancerIP	Load balancer IP for the dataplatform emitter Service (optional, cloud specific)	""
dataplatform.emitter.service.nodePorts.http	Node ports for the HTTP emitter service	""
dataplatform.emitter.service.loadBalancerSourceRanges	Data Platform Emitter Load Balancer Source ranges	[]
dataplatform.emitter.hostAliases	Deployment pod host aliases	[]

Kafka parameters

Name	Description	Value
kafka.enabled	Enable Kafka subchart	true
kafka.replicaCount	Number of Kafka brokers	3
kafka.heapOpts	Kafka Java Heap size	-Xmx4096m -Xms4096m
kafka.resources.limits	Resource limits for Kafka	{}
kafka.resources.requests.cpu	CPU capacity request for Kafka nodes	250m
kafka.resources.requests.memory	Memory capacity request for Kafka nodes	5120Mi
kafka.affinity.podAntiAffinity	Kafka anti affinity rules	{}
kafka.affinity.podAffinity	Kafka affinity rules	{}
kafka.metrics.kafka.enabled	Enable prometheus exporter for Kafka	false
kafka.metrics.kafka.resources.limits	Resource limits for kafka prometheus exporter	{}
kafka.metrics.kafka.resources.requests.cpu	CPU capacity request for Kafka prometheus nodes	100m
kafka.metrics.kafka.resources.requests.memory	Memory capacity request for Kafka prometheus nodes	128Mi
kafka.metrics.kafka.service.port	Kafka Exporter Prometheus port to be used in wavefront configuration	9308
kafka.metrics.jmx.enabled	Enable JMX exporter for Kafka	false
kafka.metrics.jmx.resources.limits	Resource limits for kafka prometheus exporter	{}
kafka.metrics.jmx.resources.requests.cpu	CPU capacity request for Kafka prometheus nodes	100m
kafka.metrics.jmx.resources.requests.memory	Memory capacity request for Kafka prometheus nodes	128Mi
kafka.metrics.jmx.service.port	JMX Prometheus exporter service port	5556
kafka.zookeeper.enabled	Enable the Kafka subchart's Zookeeper	true
kafka.zookeeper.replicaCount	Number of Zookeeper nodes	3
kafka.zookeeper.heapSize	Size in MB for the Java Heap options (Xmx and XMs) in Zookeeper. This env var is ignored if Xmx an Xms are configured via JVMFLAGS	4096
kafka.zookeeper.resources.limits	Resource limits for zookeeper	{}
kafka.zookeeper.resources.requests.cpu	CPU capacity request for zookeeper	250m
kafka.zookeeper.resources.requests.memory	Memory capacity request for zookeeper	5Gi
kafka.zookeeper.affinity.podAntiAffinity	Zookeeper pod anti affinity rules	{}
kafka.externalZookeeper.servers	Array of external Zookeeper servers	[]

Spark parameters

Name	Description	Value
spark.enabled	Enable Spark subchart	true
spark.master.webPort	Web port for spark master	8080
spark.master.resources.limits	Spark master resource limits	{}
spark.master.resources.requests.cpu	Spark master CPUs	250m
spark.master.resources.requests.memory	Spark master requested memory	5Gi
spark.master.affinity.podAntiAffinity	Anti affinity rules set for resiliency	{}
spark.worker.replicaCount	Number of spark workers	2
spark.worker.webPort	Web port for spark master	8081
spark.worker.resources.limits	Spark master resource limits	{}
spark.worker.resources.requests.cpu	Spark master CPUs	250m
spark.worker.resources.requests.memory	Spark master requested memory	5Gi
spark.worker.affinity.podAntiAffinity	Anti affinity rules set for resiliency	{}
spark.metrics.enabled	Enable Prometheus exporter for Spark	false
spark.metrics.masterAnnotations	Annotations for Spark master exporter	{}
spark.metrics.workerAnnotations	Annotations for Spark worker exporter	{}

Elasticsearch parameters

Name	Description	Value
elasticsearch.enabled	Enable Elasticsearch	true
elasticsearch.global.kibanaEnabled	Enable Kibana	true
elasticsearch.master.replicas	Number of Elasticsearch replicas	3
elasticsearch.master.heapSize	Heap Size for Elasticsearch master	768m
elasticsearch.master.affinity.podAntiAffinity	Elasticsearch pod anti affinity	{}
elasticsearch.master.resources.limits	Elasticsearch master resource limits	{}
elasticsearch.master.resources.requests.cpu	Elasticsearch master CPUs	250m
elasticsearch.master.resources.requests.memory	Elasticsearch master requested memory	1Gi
elasticsearch.master.affinity.podAntiAffinity	Anti affinity rules set for resiliency	{}
elasticsearch.data.name	Elasticsearch data node name	data
elasticsearch.data.replicas	Number of Elasticsearch replicas	2
elasticsearch.data.heapSize	Heap Size for Elasticsearch data node	4096m
elasticsearch.data.affinity.podAntiAffinity	Anti affinity rules set for resiliency	{}
elasticsearch.data.resources.limits	Elasticsearch data node resource limits	{}
elasticsearch.data.resources.requests.cpu	Elasticsearch data node CPUs	250m
elasticsearch.data.resources.requests.memory	Elasticsearch data node requested memory	5Gi
elasticsearch.coordinating.replicas	Number of Elasticsearch replicas	2
elasticsearch.coordinating.heapSize	Heap Size for Elasticsearch coordinating	768m
elasticsearch.coordinating.affinity.podAntiAffinity	Anti affinity rules set for resiliency	{}
elasticsearch.coordinating.resources.limits	Elasticsearch coordinating resource limits	{}
elasticsearch.coordinating.resources.requests.cpu	Elasticsearch coordinating CPUs	250m
elasticsearch.coordinating.resources.requests.memory	Elasticsearch coordinating requested memory	1Gi
elasticsearch.metrics.enabled	Enable Prometheus exporter for Elasticsearch	false
elasticsearch.metrics.resources.limits	Elasticsearch metrics resource limits	{}
elasticsearch.metrics.resources.requests.cpu	Elasticsearch metrics CPUs	100m
elasticsearch.metrics.resources.requests.memory	Elasticsearch metrics requested memory	128Mi
elasticsearch.metrics.service.annotations	Elasticsearch metrics service annotations	{}

Logstash parameters

Name	Description	Value
logstash.enabled	Enable Logstash	true
logstash.replicaCount	Number of Logstash replicas	2
logstash.affinity.podAntiAffinity	Logstash pod anti affinity	{}
logstash.extraEnvVars	Array containing extra env vars to configure Logstash	[]
logstash.resources.limits	Elasticsearch metrics resource limits	{}
logstash.resources.requests.cpu	Elasticsearch metrics CPUs	250m
logstash.resources.requests.memory	Elasticsearch metrics requested memory	1500Mi
logstash.metrics.enabled	Enable metrics for logstash	false
logstash.metrics.resources.limits	Elasticsearch metrics resource limits	{}
logstash.metrics.resources.requests.cpu	Elasticsearch metrics CPUs	100m
logstash.metrics.resources.requests.memory	Elasticsearch metrics requested memory	128Mi
logstash.metrics.service.port	Logstash Prometheus port	9198
logstash.metrics.service.annotations	Annotations for the Prometheus metrics service	{}

Tanzu Observability (Wavefront) parameters

Name	Description	Value
wavefront.enabled	Enable Tanzu Observability Framework	false
wavefront.clusterName	Cluster name	KUBERNETES_CLUSTER_NAME
wavefront.wavefront.url	Tanzu Observability cluster URL	https://YOUR_CLUSTER.wavefront.com
wavefront.wavefront.token	Tanzu Observability access token	YOUR_API_TOKEN
wavefront.wavefront.existingSecret	Tanzu Observability existing secret	""
wavefront.collector.resources.limits	Wavefront collector metrics resource limits	{}
wavefront.collector.resources.requests.cpu	Wavefront collector metrics CPUs	200m
wavefront.collector.resources.requests.memory	Wavefront collector metrics requested memory	10Mi
wavefront.collector.discovery.enabled	Enable wavefront discovery	true
wavefront.collector.discovery.enableRuntimeConfigs	Enable runtime configs for wavefront discovery	true
wavefront.collector.discovery.config	Wavefront discovery config	[]
wavefront.proxy.resources.limits	Wavefront Proxy metrics resource limits	{}
wavefront.proxy.resources.requests.cpu	Wavefront Proxy metrics CPUs	100m
wavefront.proxy.resources.requests.memory	Wavefront Proxy metrics requested memory	5Gi

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

$ helm install my-release \
  --set kafka.replicaCount=3 \
  bitnami/dataplatform-bp2

The above command deploys the data platform with Kafka with 3 nodes (replicas).

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

$ helm install my-release -f values.yaml bitnami/dataplatform-bp2

Tip

: You can use the default values.yaml

Data Platform Deployment with Observability Framework

In the default deployment, the helm chart deploys the data platform with Metrics Emitter and Prometheus Exporter which emit the health metrics of the data platform which can be integrated with your observability solution.

In case you need to deploy the data platform with Tanzu Observability Framework for all the applications (Kafka/Spark/Elasticsearch/Logstash) in the data platform, you can specify the 'enabled' parameter using the --set <component>.metrics.enabled=true argument to helm install. For Example,

$ helm install my-release bitnami/dataplatform-bp2 \
    --set kafka.metrics.kafka.enabled=true \
    --set kafka.metrics.jmx.enabled=true \
    --set spark.metrics.enabled=true \
    --set elasticsearch.metrics.enabled=true \
    --set logstash.metrics.enabled=true \
    --set wavefront.enabled=true \
    --set wavefront.clusterName=<K8s-CLUSTER-NAME> \
    --set wavefront.wavefront.url=https://<YOUR_CLUSTER>.wavefront.com \
    --set wavefront.wavefront.token=<YOUR_API_TOKEN>

If you want to use an existing Wavefront deployment, edit the Wavefront Collector ConfigMap and add the following snippet under discovery plugins. Once done, restart the wavefront collectors DaemonSet.

$ kubectl edit configmap wavefront-collector-config -n wavefront

Add the below config:

      discovery:
        enable_runtime_plugins: true
        plugins:
        ## auto-discover kafka-exporter
        - name: kafka-discovery
          type: prometheus
          selectors:
            images:
              - '*bitnami/kafka-exporter*'
          port: 9308
          path: /metrics
          scheme: http
          prefix: kafka.

        ## auto-discover jmx exporter
        - name: kafka-jmx-discovery
          type: prometheus
          selectors:
            images:
              - '*bitnami/jmx-exporter*'
          port: 5556
          path: /metrics
          scheme: http
          prefix: kafkajmx.

        ## auto-discover elasticsearch
        - name: elasticsearch-discovery
          type: prometheus
          selectors:
            images:
              - '*bitnami/elasticsearch-exporter*'
          port: 9114
          path: /metrics
          scheme: http

        ## auto-discover logstash
        - name: logstash-discovery
          type: prometheus
          selectors:
            images:
              - '*bitnami/logstash-exporter*'
          port: 9198
          path: /metrics
          scheme: http

        ## auto-discover spark
        - name: spark-worker-discovery
          type: prometheus
          selectors:
            images:
              - '*bitnami/spark*'
          port: 8081
          path: /metrics/
          scheme: http
          prefix: spark.

        ## auto-discover spark
        - name: spark-master-discovery
          type: prometheus
          selectors:
            images:
              - '*bitnami/spark*'
          port: 8080
          path: /metrics/
          scheme: http
          prefix: spark.

Below is the command to restart the DaemonSets

$ kubectl rollout restart daemonsets wavefront-collector -n wavefront

Configuration and installation details

Rolling VS Immutable tags

It is strongly recommended to use immutable tags in a production environment. This ensures your deployment does not change automatically if the same tag is updated with a different image.

Bitnami will release a new chart updating its containers if a new version of the main container, significant changes, or critical vulnerabilities exist.

Troubleshooting

Find more information about how to deal with common errors related to Bitnami’s Helm charts in this troubleshooting guide.

In order to render complete information about the deployment including all the sub-charts, please use --render-subchart-notes flag while installing the chart.

Notable changes

0.3.0

Elasticsearch dependency version was bumped to a new major version changing the license of some of its components to the Elastic License that is not currently accepted as an Open Source license by the Open Source Initiative (OSI). Check Elasticsearch Upgrading Notes for more information.

Regular upgrade is compatible from previous versions.

Upgrading

To 8.0.0

This major adds the data platform metrics emitter and Prometheus exporters to the chart which emit health metrics of the data platform.

To 7.0.0

This major updates the Elasticsearch subchart to its newest major, 17.0.0, which adds support for X-pack security features such as SSL/TLS encryption and password protection. Check Elasticsearch Upgrading Notes for more information.

To 6.0.0

This major version updates resources for elasticsearch and logstash values. Also updates the README file with instructions on how to enable existing Wavefront deployment for the data platform blueprint.

To 5.0.0

This major updates the Kafka subchart its newest major, 14.0.0. Here you can find more information about the changes introduced in this version.

To 4.0.0

This major updates the Kafka subchart to its newest major 13.0.0. For more information on this subchart's major, please refer to kafka upgrade notes.

To 3.0.0

This major version updates the prefixes of individual applications metrics in Wavefront Collectors which are fed to Tanzu observability in order to light up the individual dashboards of Kafka, Spark ElasticSearch and Logstash on Tanzu Observability platform.

To 2.0.0

This major updates the wavefront subchart to it newest major, 3.0.0, which contains a new major for kube-state-metrics. For more information on this subchart's major, please refer to wavefront upgrade notes.

To 1.0.0

The affinity rules have been updated to allow deploying this chart and the dataplatform-bp1 chart in the same cluster.