charts/bitnami/kafka/values.yaml

## Global Docker image registry
## Please, note that this will override the image registry for all the images, including dependencies, configured to use the global value
##
# global:
#   imageRegistry:

## Bitnami Kafka image version
## ref: https://hub.docker.com/r/bitnami/kafka/tags/
##
image:
  registry: docker.io
  repository: bitnami/kafka
  tag: 2.1.0
  ## Specify a imagePullPolicy
  ## Defaults to 'Always' if image tag is 'latest', else set to 'IfNotPresent'
  ## ref: http://kubernetes.io/docs/user-guide/images/#pre-pulling-images
  ##
  pullPolicy: Always

  ## Optionally specify an array of imagePullSecrets.
  ## Secrets must be manually created in the namespace.
  ## ref: https://kubernetes.io/docs/tasks/configure-pod-container/pull-image-private-registry/
  ##
  # pullSecrets:
  #   - myRegistrKeySecretName

  ## Set to true if you would like to see extra information on logs
  ## It turns BASH and NAMI debugging in minideb
  ## ref:  https://github.com/bitnami/minideb-extras/#turn-on-bash-debugging
  debug: false

updateStrategy: RollingUpdate
replicaCount: 1

config: |-
#  broker.id=-1
#  listeners=PLAINTEXT://:9092
#  advertised.listeners=PLAINTEXT://KAFKA_IP:9092
#  num.network.threads=3
#  num.io.threads=8
#  socket.send.buffer.bytes=102400
#  socket.receive.buffer.bytes=102400
#  socket.request.max.bytes=104857600
#  log.dirs=/opt/bitnami/kafka/data
#  num.partitions=1
#  num.recovery.threads.per.data.dir=1
#  offsets.topic.replication.factor=1
#  transaction.state.log.replication.factor=1
#  transaction.state.log.min.isr=1
#  log.flush.interval.messages=10000
#  log.flush.interval.ms=1000
#  log.retention.hours=168
#  log.retention.bytes=1073741824
#  log.segment.bytes=1073741824
#  log.retention.check.interval.ms=300000
#  zookeeper.connect=ZOOKEEPER_SERVICE_NAME
#  zookeeper.connection.timeout.ms=6000
#  group.initial.rebalance.delay.ms=0

## Kafka docker image available customizations
## https://github.com/bitnami/bitnami-docker-kafka#configuration
##
## Allow to use the PLAINTEXT listener.
allowPlaintextListener: true

## The address the socket server listens on.
# listeners:

## Hostname and port the broker will advertise to producers and consumers.
# advertisedListeners:

## ID of the Kafka node.
brokerId: -1

## Switch to enable topic deletion or not.
deteleTopicEnable: false

## Kafka's Java Heap size.
heapOpts: -Xmx1024m -Xms1024m

## The number of messages to accept before forcing a flush of data to disk.
logFlushIntervalMessages: 10000

## The maximum amount of time a message can sit in a log before we force a flush.
logFlushIntervalMs: 1000

## A size-based retention policy for logs.
logRetentionBytes: _1073741824

## The interval at which log segments are checked to see if they can be deleted.
logRetentionCheckIntervalMs: 300000

## The minimum age of a log file to be eligible for deletion due to age.
logRetentionHours: 168

## The maximum size of a log segment file. When this size is reached a new log segment will be created.
logSegmentBytes: _1073741824

## A comma separated list of directories under which to store log files.
logsDirs: /opt/bitnami/kafka/data

## The largest record batch size allowed by Kafka
maxMessageBytes: _1000012

## The number of threads doing disk I/O.
numIoThreads: 8

## The number of threads handling network requests.
numNetworkThreads: 3

## The default number of log partitions per topic.
numPartitions: 1

## The number of threads per data directory to be used for log recovery at startup and flushing at shutdown.
numRecoveryThreadsPerDataDir: 1

## The receive buffer (SO_RCVBUF) used by the socket server.
socketReceiveBufferBytes: 102400

## The maximum size of a request that the socket server will accept (protection against OOM).
socketRequestMaxBytes: _104857600

## The send buffer (SO_SNDBUF) used by the socket server.
socketSendBufferBytes: 102400

## Timeout in ms for connecting to zookeeper.
zookeeperConnectionTimeoutMs: 6000

## Authentication parameteres
## https://github.com/bitnami/bitnami-docker-kafka#security
##
auth:
  ## Switch to enable the kafka authentication.
  enabled: false

  ## Name of the existing secret containing credentials for brokerUser, interBrokerUser and zookeeperUser.
  #existingSecret:

  ## Name of the existing secret containing the certificate files that will be used by Kafka.
  #certificatesSecret:

  ## Password for the above certificates if they are password protected.
  #certificatesPassword:

  ## Kafka client user.
  brokerUser: user

  ## Kafka client password.
  # brokerPassword:

  ## Kafka inter broker communication user.
  interBrokerUser: admin

  ## Kafka inter broker communication password.
  # interBrokerPassword:

  ## Kafka Zookeeper user.
  #zookeeperUser:

  ## Kafka Zookeeper password.
  #zookeeperPassword:

## Kubernetes Security Context
## https://kubernetes.io/docs/tasks/configure-pod-container/security-context/
##
securityContext:
  enabled: true
  fsGroup: 1001
  runAsUser: 1001

## Kubernetes configuration
## For minikube, set this to NodePort, elsewhere use LoadBalancer
##
service:
  type: ClusterIP
  port: 9092

## Kafka data Persistent Volume Storage Class
## If defined, storageClassName: <storageClass>
## If set to "-", storageClassName: "", which disables dynamic provisioning
## If undefined (the default) or set to null, no storageClassName spec is
##   set, choosing the default provisioner.  (gp2 on AWS, standard on
##   GKE, AWS & OpenStack)
##
persistence:
  enabled: true
  # storageClass: "-"
  accessModes:
    - ReadWriteOnce
  size: 8Gi
  annotations: {}

## Node labels and tolerations for pod assignment
## ref: https://kubernetes.io/docs/concepts/configuration/assign-pod-node/#nodeselector
## ref: https://kubernetes.io/docs/concepts/configuration/assign-pod-node/#taints-and-tolerations-beta-feature
nodeSelector: {}
tolerations: []

## Configure resource requests and limits
## ref: http://kubernetes.io/docs/user-guide/compute-resources/
##
resources:
#  limits:
#    cpu: 200m
#    memory: 1Gi
#  requests:
#    memory: 256Mi
#    cpu: 250m

## Configure extra options for liveness and readiness probes
## ref: https://kubernetes.io/docs/tasks/configure-pod-container/configure-liveness-readiness-probes/#configure-probes)
livenessProbe:
  enabled: true
  initialDelaySeconds: 10
  periodSeconds: 10
  timeoutSeconds: 5
  failureThreshold: 2
  successThreshold: 1

readinessProbe:
  enabled: true
  initialDelaySeconds: 5
  periodSeconds: 10
  timeoutSeconds: 5
  failureThreshold: 6
  successThreshold: 1

## Prometheus Exporters / Metrics
##
metrics:
  ## Prometheus Kafka Exporter: exposes complimentary metrics to JMX Exporter
  kafka:
    enabled: false

    image:
      registry: docker.io
      repository: danielqsj/kafka-exporter
      tag: v1.0.1
      pullPolicy: Always
      ## Optionally specify an array of imagePullSecrets.
      ## Secrets must be manually created in the namespace.
      ## ref: https://kubernetes.io/docs/tasks/configure-pod-container/pull-image-private-registry/
      ##
      # pullSecrets:
      #   - myRegistrKeySecretName

    ## Interval at which Prometheus scrapes metrics, note: only used by Prometheus Operator
    interval: 10s

    ## Port kafka-exporter exposes for Prometheus to scrape metrics
    port: 9308

    ## Resource limits
    resources: {}
#      limits:
#        cpu: 200m
#        memory: 1Gi
#      requests:
#        cpu: 100m
#        memory: 100Mi

  ## Prometheus JMX Exporter: exposes the majority of Kafkas metrics
  jmx:
    enabled: false

    image:
      registry: docker.io
      repository: solsson/kafka-prometheus-jmx-exporter@sha256
      tag: a23062396cd5af1acdf76512632c20ea6be76885dfc20cd9ff40fb23846557e8
      pullPolicy: Always
      ## Optionally specify an array of imagePullSecrets.
      ## Secrets must be manually created in the namespace.
      ## ref: https://kubernetes.io/docs/tasks/configure-pod-container/pull-image-private-registry/
      ##
      # pullSecrets:
      #   - myRegistrKeySecretName

    ## Interval at which Prometheus scrapes metrics, note: only used by Prometheus Operator
    interval: 10s

    ## Port jmx-exporter exposes Prometheus format metrics to scrape
    exporterPort: 5556

    resources: {}
      # limits:
      #   cpu: 200m
      #   memory: 1Gi
      # requests:
      #   cpu: 100m
      #   memory: 100Mi

    ## Credits to the incubator/kafka chart for the JMX configuration.
    ## https://github.com/helm/charts/tree/master/incubator/kafka
    ##
    ## Rules to apply to the Prometheus JMX Exporter.  Note while lots of stats have been cleaned and exposed,
    ## there are still more stats to clean up and expose, others will never get exposed.  They keep lots of duplicates
    ## that can be derived easily.  The configMap in this chart cleans up the metrics it exposes to be in a Prometheus
    ## format, eg topic, broker are labels and not part of metric name. Improvements are gladly accepted and encouraged.
    configMap:
      ## Allows disabling the default configmap, note a configMap is needed
      enabled: true
      ## Allows setting values to generate confimap
      ## To allow all metrics through (warning its crazy excessive) comment out below `overrideConfig` and set
      ## `whitelistObjectNames: []`
      overrideConfig: {}
        # jmxUrl: service:jmx:rmi:///jndi/rmi://127.0.0.1:5555/jmxrmi
        # lowercaseOutputName: true
        # lowercaseOutputLabelNames: true
        # ssl: false
        # rules:
        # - pattern: ".*"
      ## If you would like to supply your own ConfigMap for JMX metrics, supply the name of that
      ## ConfigMap as an `overrideName` here.
      overrideName: ""
    ## Port the jmx metrics are exposed in native jmx format, not in Prometheus format
    jmxPort: 5555
    ## JMX Whitelist Objects, can be set to control which JMX metrics are exposed.  Only whitelisted
    ## values will be exposed via JMX Exporter.  They must also be exposed via Rules.  To expose all metrics
    ## (warning its crazy excessive and they aren't formatted in a prometheus style) (1) `whitelistObjectNames: []`
    ## (2) commented out above `overrideConfig`.
    whitelistObjectNames:  # []
    - kafka.controller:*
    - kafka.server:*
    - java.lang:*
    - kafka.network:*
    - kafka.log:*

##
## Zookeeper chart configuration
##
## https://github.com/bitnami/charts/blob/master/bitnami/zookeeper/values.yaml
## 
zookeeper:
  enabled: true

externalZookeeper:
  ## This value is only used when zookeeper.enabled is set to false

  ## Server or list of external zookeeper servers to use.
  # servers: