Bitnami package for Apache Solr

Apache Solr is an extremely powerful, open source enterprise search platform built on Apache Lucene. It is highly reliable and flexible, scalable, and designed to add value very quickly after launch.

Overview of Apache Solr

Trademarks: This software listing is packaged by Bitnami. The respective trademarks mentioned in the offering are owned by the respective companies, and use of them does not imply any affiliation or endorsement.

TL;DR

helm install my-release oci://REGISTRY_NAME/REPOSITORY_NAME/solr

Note: You need to substitute the placeholders REGISTRY_NAME and REPOSITORY_NAME with a reference to your Helm chart registry and repository.

Introduction

This chart bootstraps a Solr deployment on a Kubernetes cluster using the Helm package manager.

Bitnami charts can be used with Kubeapps for deployment and management of Helm Charts in clusters.

Prerequisites

  • Kubernetes 1.23+
  • Helm 3.8.0+
  • PV provisioner support in the underlying infrastructure
  • ReadWriteMany volumes for deployment scaling

Installing the Chart

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

helm install my-release oci://REGISTRY_NAME/REPOSITORY_NAME/solr

Note: You need to substitute the placeholders REGISTRY_NAME and REPOSITORY_NAME with a reference to your Helm chart registry and repository. For example, in the case of Bitnami, you need to use REGISTRY_NAME=registry-1.docker.io and REPOSITORY_NAME=bitnamicharts.

These commands deploy Solr on the Kubernetes cluster in the default configuration. The Parameters 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 statefulset:

helm delete my-release

The command removes all the Kubernetes components associated with the chart and deletes the release. Use the option --purge to delete all history too.

Configuration and installation details

Resource requests and limits

Bitnami charts allow setting resource requests and limits for all containers inside the chart deployment. These are inside the resources value (check parameter table). Setting requests is essential for production workloads and these should be adapted to your specific use case.

To make this process easier, the chart contains the resourcesPreset values, which automatically sets the resources section according to different presets. Check these presets in the bitnami/common chart. However, in production workloads using resourcePreset is discouraged as it may not fully adapt to your specific needs. Find more information on container resource management in the official Kubernetes documentation.

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.

Use a different Apache Solr version

To modify the application version used in this chart, specify a different version of the image using the image.tag parameter and/or a different repository using the image.repository parameter.

Add extra environment variables

In case you want to add extra environment variables (useful for advanced operations like custom init scripts), you can use the extraEnvVars property.

extraEnvVars:
  - name: ZOOKEEPER_VERSION
    value: 6

Alternatively, you can use a ConfigMap or a Secret with the environment variables. To do so, use the extraEnvVarsCM or the extraEnvVarsSecret values.

Use Sidecars and Init Containers

If additional containers are needed in the same pod (such as additional metrics or logging exporters), they can be defined using the sidecars config parameter.

sidecars:
- name: your-image-name
  image: your-image
  imagePullPolicy: Always
  ports:
  - name: portname
    containerPort: 1234

If these sidecars export extra ports, extra port definitions can be added using the service.extraPorts parameter (where available), as shown in the example below:

service:
  extraPorts:
  - name: extraPort
    port: 11311
    targetPort: 11311

NOTE: This Helm chart already includes sidecar containers for the Prometheus exporters (where applicable). These can be activated by adding the --enable-metrics=true parameter at deployment time. The sidecars parameter should therefore only be used for any extra sidecar containers.

If additional init containers are needed in the same pod, they can be defined using the initContainers parameter. Here is an example:

initContainers:
  - name: your-image-name
    image: your-image
    imagePullPolicy: Always
    ports:
      - name: portname
        containerPort: 1234

Learn more about sidecar containers and init containers.

Set Pod affinity

This chart allows you to set your custom affinity using the XXX.affinity parameter(s). Find more information about Pod affinity in the Kubernetes documentation.

As an alternative, you can use the preset configurations for pod affinity, pod anti-affinity, and node affinity available at the bitnami/common chart. To do so, set the XXX.podAffinityPreset, XXX.podAntiAffinityPreset, or XXX.nodeAffinityPreset parameters.

Persistence

The Bitnami Solr image can persist data. If enabled, the persisted path is /bitnami/solr by default.

The chart mounts a Persistent Volume at this location. The volume is created using dynamic volume provisioning.

Add extra volumes

The Bitnami Solr chart supports mounting extra volumes (either PVCs, secrets or configmaps) by using the extraVolumes and extraVolumeMounts property. This can be combined with advanced operations like adding extra init containers and sidecars.

Adjust permissions of persistent volume mountpoint

As the image run as non-root by default, it is necessary to adjust the ownership of the persistent volume so that the container can write data into it.

By default, the chart is configured to use Kubernetes Security Context to automatically change the ownership of the volume. However, this feature does not work in all Kubernetes distributions. As an alternative, this chart supports using an initContainer to change the ownership of the volume before mounting it in the final destination.

You can enable this initContainer by setting volumePermissions.enabled to true.

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) ""
global.compatibility.openshift.adaptSecurityContext Adapt the securityContext sections of the deployment to make them compatible with Openshift restricted-v2 SCC: remove runAsUser, runAsGroup and fsGroup and let the platform use their allowed default IDs. Possible values: auto (apply if the detected running cluster is Openshift), force (perform the adaptation always), disabled (do not perform adaptation) auto

Common parameters

Name Description Value
kubeVersion Override Kubernetes version ""
nameOverride String to partially override common.names.fullname template (will maintain the release name) ""
fullnameOverride String to fully override common.names.fullname template ""
clusterDomain Kubernetes cluster domain cluster.local
commonLabels Add labels to all the deployed resources {}
commonAnnotations Add annotations to all the deployed resources {}
extraDeploy Extra objects to deploy (value evaluated as a template) []
diagnosticMode.enabled Enable diagnostic mode (all probes will be disabled and the command will be overridden) false
diagnosticMode.command Command to override all containers in the statefulset ["sleep"]
diagnosticMode.args Args to override all containers in the statefulset ["infinity"]

Solr parameters

Name Description Value
image.registry Solr image registry REGISTRY_NAME
image.repository Solr image repository REPOSITORY_NAME/solr
image.digest Solr image digest in the way sha256:aa…. Please note this parameter, if set, will override the tag ""
image.pullPolicy image pull policy IfNotPresent
image.pullSecrets Specify docker-registry secret names as an array []
image.debug Specify if debug values should be set false
auth.enabled Enable Solr authentication true
auth.adminUsername Solr admin username admin
auth.adminPassword Solr admin password. Autogenerated if not provided. ""
auth.existingSecret Existing secret with Solr password ""
auth.existingSecretPasswordKey Password key to be retrieved from existing secret solr-password
coreNames Solr core names to be created ["my-core"]
cloudEnabled Enable Solr cloud mode true
cloudBootstrap Enable cloud bootstrap. It will be performed from the node 0. true
collection Solr collection name my-collection
collectionShards Number of collection shards 1
collectionReplicas Number of collection replicas 2
serverDirectory Name of the created directory for the server server
javaMem Java memory options to pass to the Solr container ""
heap Java Heap options to pass to the Solr container ""
command Override Solr entrypoint string ["/scripts/setup.sh"]
args Arguments for the provided command if needed []
extraEnvVars Additional environment variables to set []
extraEnvVarsCM ConfigMap with extra environment variables ""
extraEnvVarsSecret Secret with extra environment variables ""

Solr statefulset parameters

Name Description Value
replicaCount Number of solr replicas 3
revisionHistoryLimit The number of old history to retain to allow rollback 10
containerPorts.http Solr HTTP container port 8983
livenessProbe.enabled Enable livenessProbe on Solr containers true
livenessProbe.initialDelaySeconds Initial delay seconds for livenessProbe 40
livenessProbe.periodSeconds Period seconds for livenessProbe 10
livenessProbe.timeoutSeconds Timeout seconds for livenessProbe 15
livenessProbe.failureThreshold Failure threshold for livenessProbe 6
livenessProbe.successThreshold Success threshold for livenessProbe 1
readinessProbe.enabled Enable readinessProbe on Solr containers true
readinessProbe.initialDelaySeconds Initial delay seconds for readinessProbe 60
readinessProbe.periodSeconds Period seconds for readinessProbe 10
readinessProbe.timeoutSeconds Timeout seconds for readinessProbe 15
readinessProbe.failureThreshold Failure threshold for readinessProbe 6
readinessProbe.successThreshold Success threshold for readinessProbe 1
startupProbe.enabled Enable startupProbe on Solr containers false
startupProbe.initialDelaySeconds Initial delay seconds for startupProbe 40
startupProbe.periodSeconds Period seconds for startupProbe 10
startupProbe.timeoutSeconds Timeout seconds for startupProbe 15
startupProbe.failureThreshold Failure threshold for startupProbe 15
startupProbe.successThreshold Success threshold for startupProbe 1
customLivenessProbe Custom livenessProbe that overrides the default one {}
customReadinessProbe Custom readinessProbe that overrides the default one {}
customStartupProbe Custom startupProbe that overrides the default one {}
lifecycleHooks lifecycleHooks for the Solr container to automate configuration before or after startup {}
resourcesPreset Set container resources according to one common preset (allowed values: none, nano, micro, small, medium, large, xlarge, 2xlarge). This is ignored if resources is set (resources is recommended for production). medium
resources Set container requests and limits for different resources like CPU or memory (essential for production workloads) {}
podSecurityContext.enabled Enable Solr pods’ Security Context true
podSecurityContext.fsGroupChangePolicy Set filesystem group change policy Always
podSecurityContext.sysctls Set kernel settings using the sysctl interface []
podSecurityContext.supplementalGroups Set filesystem extra groups []
podSecurityContext.fsGroup Set Solr pod’s Security Context fsGroup 1001
containerSecurityContext.enabled Enabled containers’ Security Context true
containerSecurityContext.seLinuxOptions Set SELinux options in container {}
containerSecurityContext.runAsUser Set containers’ Security Context runAsUser 1001
containerSecurityContext.runAsGroup Set containers’ Security Context runAsGroup 1001
containerSecurityContext.runAsNonRoot Set container’s Security Context runAsNonRoot true
containerSecurityContext.privileged Set container’s Security Context privileged false
containerSecurityContext.readOnlyRootFilesystem Set container’s Security Context readOnlyRootFilesystem true
containerSecurityContext.allowPrivilegeEscalation Set container’s Security Context allowPrivilegeEscalation false
containerSecurityContext.capabilities.drop List of capabilities to be dropped ["ALL"]
containerSecurityContext.seccompProfile.type Set container’s Security Context seccomp profile RuntimeDefault
automountServiceAccountToken Mount Service Account token in pod false
hostAliases Solr pods host aliases []
podLabels Extra labels for Solr pods {}
podAnnotations Annotations for Solr pods {}
podAffinityPreset Solr pod affinity preset. Ignored if affinity is set. Allowed values: soft or hard ""
podAntiAffinityPreset Solr pod anti-affinity preset. Ignored if affinity is set. Allowed values: soft or hard soft
nodeAffinityPreset.type Solr node affinity preset type. Ignored if affinity is set. Allowed values: soft or hard ""
nodeAffinityPreset.key Solr node label key to match Ignored if affinity is set. ""
nodeAffinityPreset.values Solr node label values to match. Ignored if affinity is set. []
affinity Affinity settings for Solr pod assignment. Evaluated as a template {}
nodeSelector Node labels for Solr pods assignment. Evaluated as a template {}
tolerations Tolerations for Solr pods assignment. Evaluated as a template []
topologySpreadConstraints Topology Spread Constraints for pod assignment spread across your cluster among failure-domains. Evaluated as a template []
podManagementPolicy Management Policy for Solr StatefulSet Parallel
priorityClassName Solr pods’ priority. ""
schedulerName Kubernetes pod scheduler registry ""
updateStrategy.type Solr statefulset strategy type RollingUpdate
updateStrategy.rollingUpdate Solr statefulset rolling update configuration parameters {}
enableServiceLinks Whether information about services should be injected into pod’s environment variable true
pdb.create Enable a Pod Disruption Budget creation true
pdb.minAvailable Minimum number/percentage of pods that should remain scheduled ""
pdb.maxUnavailable Maximum number/percentage of pods that may be made unavailable ""
extraVolumes Optionally specify extra list of additional volumes for the Solr pod(s) []
extraVolumeMounts Optionally specify extra list of additional volumeMounts for the Solr container(s) []
initContainers Add init containers to the Solr pod(s) []
sidecars Add sidecars to the Solr pod(s) []

Traffic Exposure parameters

Name Description Value
service.type Kubernetes Service type ClusterIP
service.ports.http Solr HTTP service port 8983
service.nodePorts.http Node port for the HTTP service ""
service.sessionAffinity Control where client requests go, to the same pod or round-robin None
service.sessionAffinityConfig Additional settings for the sessionAffinity {}
service.clusterIP Solr service Cluster IP ""
service.loadBalancerIP Solr service Load Balancer IP ""
service.loadBalancerSourceRanges Solr service Load Balancer sources []
service.externalTrafficPolicy Solr service external traffic policy Cluster
service.annotations Additional custom annotations for Solr service {}
service.extraPorts Extra ports to expose in the Solr service (normally used with the sidecar value) []
service.headless.annotations Annotations for the headless service. {}
networkPolicy.enabled Specifies whether a NetworkPolicy should be created true
networkPolicy.allowExternal Don’t require client label for connections true
networkPolicy.allowExternalEgress Allow the pod to access any range of port and all destinations. true
networkPolicy.extraIngress Add extra ingress rules to the NetworkPolicy []
networkPolicy.extraEgress Add extra ingress rules to the NetworkPolicy []
networkPolicy.ingressNSMatchLabels Labels to match to allow traffic from other namespaces {}
networkPolicy.ingressNSPodMatchLabels Pod labels to match to allow traffic from other namespaces {}
ingress.enabled Enable ingress record generation for Apache Geode false
ingress.ingressClassName IngressClass that will be be used to implement the Ingress (Kubernetes 1.18+) ""
ingress.pathType Ingress path type ImplementationSpecific
ingress.apiVersion Force Ingress API version (automatically detected if not set) ""
ingress.hostname Default host for the ingress record solr.local
ingress.path Default path for the ingress record /
ingress.annotations Additional annotations for the Ingress resource. To enable certificate autogeneration, place here your cert-manager annotations. {}
ingress.tls Enable TLS configuration for the host defined at ingress.hostname parameter false
ingress.selfSigned Create a TLS secret for this ingress record using self-signed certificates generated by Helm false
ingress.extraHosts An array with additional hostname(s) to be covered with the ingress record []
ingress.extraPaths Any additional arbitrary paths that may need to be added to the ingress under the main host. []
ingress.extraTls The tls configuration for additional hostnames to be covered with this ingress record. []
ingress.secrets If you’re providing your own certificates, please use this to add the certificates as secrets []
ingress.extraRules Additional rules to be covered with this ingress record []

Persistence parameters

Name Description Value
persistence.enabled Use a PVC to persist data. true
persistence.existingClaim A manually managed Persistent Volume and Claim ""
persistence.storageClass Storage class of backing PVC ""
persistence.accessModes Persistent Volume Access Modes ["ReadWriteOnce"]
persistence.size Size of data volume 8Gi
persistence.annotations Persistence annotations for Solr {}
persistence.mountPath Persistence mount path for Solr /bitnami/solr
persistence.subPath Path within the volume from which the container’s ""
persistence.subPathExpr Expanded path within the volume from which ""
persistence.selector Selector to match an existing Persistent Volume for Solr data PVC {}

Volume Permissions parameters

Name Description Value
volumePermissions.enabled Enable init container that changes the owner and group of the persistent volume false
volumePermissions.image.registry Init container volume-permissions image registry REGISTRY_NAME
volumePermissions.image.repository Init container volume-permissions image repository REPOSITORY_NAME/os-shell
volumePermissions.image.digest Init container volume-permissions image digest in the way sha256:aa…. Please note this parameter, if set, will override the tag ""
volumePermissions.image.pullPolicy Init container volume-permissions image pull policy IfNotPresent
volumePermissions.image.pullSecrets Init container volume-permissions image pull secrets []
volumePermissions.resourcesPreset Set container resources according to one common preset (allowed values: none, nano, micro, small, medium, large, xlarge, 2xlarge). This is ignored if volumePermissions.resources is set (volumePermissions.resources is recommended for production). nano
volumePermissions.resources Set container requests and limits for different resources like CPU or memory (essential for production workloads) {}
volumePermissions.containerSecurityContext.seLinuxOptions Set SELinux options in container {}
volumePermissions.containerSecurityContext.runAsUser User ID for the init container 0

Other Parameters

Name Description Value
serviceAccount.create Enable creation of ServiceAccount for Solr pod true
serviceAccount.name The name of the ServiceAccount to use. ""
serviceAccount.automountServiceAccountToken Allows auto mount of ServiceAccountToken on the serviceAccount created false
serviceAccount.annotations Additional custom annotations for the ServiceAccount {}

Solr TLS parameters

Name Description Value
tls.enabled Enable the TLS/SSL configuration false
tls.autoGenerated Create self-signed TLS certificates. Currently only supports PEM certificates false
tls.certificatesSecretName Name of the secret that contains the certificates ""
tls.passwordsSecretName Set the name of the secret that contains the passwords for the certificate files ""
tls.keystorePassword Password to access the keystore when it’s password-protected ""
tls.truststorePassword Password to access the truststore when it’s password-protected ""
tls.resourcesPreset Set container resources according to one common preset (allowed values: none, nano, micro, small, medium, large, xlarge, 2xlarge). This is ignored if tls.resources is set (tls.resources is recommended for production). nano
tls.resources Set container requests and limits for different resources like CPU or memory (essential for production workloads) {}

Metrics parameters

Name Description Value
metrics.enabled Deploy a Solr Prometheus exporter deployment to expose metrics false
metrics.configFile Config file with metrics to export by the Solr prometheus metrics. To change it mount a different file using extraConfigMaps /opt/bitnami/solr/prometheus-exporter/conf/solr-exporter-config.xml
metrics.threads Number of Solr exporter threads 7
metrics.command Override Solr entrypoint string. []
metrics.args Arguments for the provided command if needed []
metrics.extraEnvVars Additional environment variables to set []
metrics.extraEnvVarsCM ConfigMap with extra environment variables ""
metrics.extraEnvVarsSecret Secret with extra environment variables ""
metrics.containerPorts.http Solr Prometheus exporter HTTP container port 9231
metrics.livenessProbe.enabled Enable livenessProbe on Solr Prometheus exporter containers true
metrics.livenessProbe.initialDelaySeconds Initial delay seconds for livenessProbe 10
metrics.livenessProbe.periodSeconds Period seconds for livenessProbe 5
metrics.livenessProbe.timeoutSeconds Timeout seconds for livenessProbe 15
metrics.livenessProbe.failureThreshold Failure threshold for livenessProbe 15
metrics.livenessProbe.successThreshold Success threshold for livenessProbe 1
metrics.readinessProbe.enabled Enable readinessProbe on Solr Prometheus exporter containers true
metrics.readinessProbe.initialDelaySeconds Initial delay seconds for readinessProbe 10
metrics.readinessProbe.periodSeconds Period seconds for readinessProbe 5
metrics.readinessProbe.timeoutSeconds Timeout seconds for readinessProbe 15
metrics.readinessProbe.failureThreshold Failure threshold for readinessProbe 15
metrics.readinessProbe.successThreshold Success threshold for readinessProbe 15
metrics.startupProbe.enabled Enable startupProbe on Solr Prometheus exporter containers false
metrics.startupProbe.initialDelaySeconds Initial delay seconds for startupProbe 30
metrics.startupProbe.periodSeconds Period seconds for startupProbe 10
metrics.startupProbe.timeoutSeconds Timeout seconds for startupProbe 1
metrics.startupProbe.failureThreshold Failure threshold for startupProbe 15
metrics.startupProbe.successThreshold Success threshold for startupProbe 1
metrics.customLivenessProbe Custom livenessProbe that overrides the default one {}
metrics.customReadinessProbe Custom readinessProbe that overrides the default one {}
metrics.customStartupProbe Custom startupProbe that overrides the default one {}
metrics.resourcesPreset Set container resources according to one common preset (allowed values: none, nano, micro, small, medium, large, xlarge, 2xlarge). This is ignored if metrics.resources is set (metrics.resources is recommended for production). nano
metrics.resources Set container requests and limits for different resources like CPU or memory (essential for production workloads) {}
metrics.containerSecurityContext.enabled Enabled containers’ Security Context true
metrics.containerSecurityContext.seLinuxOptions Set SELinux options in container {}
metrics.containerSecurityContext.runAsUser Set containers’ Security Context runAsUser 1001
metrics.containerSecurityContext.runAsGroup Set containers’ Security Context runAsGroup 1001
metrics.containerSecurityContext.runAsNonRoot Set container’s Security Context runAsNonRoot true
metrics.containerSecurityContext.privileged Set container’s Security Context privileged false
metrics.containerSecurityContext.readOnlyRootFilesystem Set container’s Security Context readOnlyRootFilesystem true
metrics.containerSecurityContext.allowPrivilegeEscalation Set container’s Security Context allowPrivilegeEscalation false
metrics.containerSecurityContext.capabilities.drop List of capabilities to be dropped ["ALL"]
metrics.containerSecurityContext.seccompProfile.type Set container’s Security Context seccomp profile RuntimeDefault
metrics.podSecurityContext.enabled Enable Solr Prometheus exporter pods’ Security Context true
metrics.podSecurityContext.fsGroupChangePolicy Set filesystem group change policy Always
metrics.podSecurityContext.sysctls Set kernel settings using the sysctl interface []
metrics.podSecurityContext.supplementalGroups Set filesystem extra groups []
metrics.podSecurityContext.fsGroup Group ID for the pods. 1001
metrics.podLabels Additional labels for Solr Prometheus exporter pod(s) {}
metrics.podAnnotations Additional annotations for Solr Prometheus exporter pod(s) {}
metrics.podAffinityPreset Solr Prometheus exporter pod affinity preset. Ignored if affinity is set. Allowed values: soft or hard ""
metrics.podAntiAffinityPreset Solr Prometheus exporter pod anti-affinity preset. Ignored if affinity is set. Allowed values: soft or hard soft
metrics.nodeAffinityPreset.type Solr Prometheus exporter node affinity preset type. Ignored if affinity is set. Allowed values: soft or hard ""
metrics.nodeAffinityPreset.key Solr Prometheus exporter node label key to match Ignored if affinity is set. ""
metrics.nodeAffinityPreset.values Solr Prometheus exporter node label values to match. Ignored if affinity is set. []
metrics.affinity Affinity settings for Solr Prometheus exporter pod assignment. Evaluated as a template {}
metrics.nodeSelector Node labels for Solr Prometheus exporter pods assignment. Evaluated as a template {}
metrics.tolerations Tolerations for Solr Prometheus exporter pods assignment. Evaluated as a template []
metrics.topologySpreadConstraints Topology Spread Constraints for pod assignment spread across your cluster among failure-domains. Evaluated as a template []
metrics.priorityClassName Solr Prometheus exporter pods’ priority. ""
metrics.schedulerName Kubernetes pod scheduler registry ""
metrics.automountServiceAccountToken Mount Service Account token in pod false
metrics.hostAliases Solr Prometheus exporter pod host aliases []
metrics.updateStrategy.type Solr Prometheus exporter deployment strategy type RollingUpdate
metrics.updateStrategy.rollingUpdate Solr Prometheus exporter deployment rolling update configuration parameters {}
metrics.extraVolumes Optionally specify extra list of additional volumes for the Solr Prometheus exporter pod(s) []
metrics.extraVolumeMounts Optionally specify extra list of additional volumeMounts for the Solr Prometheus exporter container(s) []
metrics.initContainers Add init containers to the Solr Prometheus exporter pod(s) []
metrics.sidecars Add sidecars to the Solr Prometheus exporter pod(s) []
metrics.service.type Kubernetes Service type ClusterIP
metrics.service.ports.http Solr Prometheus exporter HTTP service port 9231
metrics.service.sessionAffinity Control where client requests go, to the same pod or round-robin None
metrics.service.clusterIP Solr Prometheus exporter service Cluster IP ""
metrics.service.annotations annotations for Solr Prometheus exporter service {}
metrics.service.labels Additional labels for Solr Prometheus exporter service {}
metrics.serviceMonitor.enabled Create ServiceMonitor Resource for scraping metrics using Prometheus Operator false
metrics.serviceMonitor.namespace Namespace for the ServiceMonitor Resource (defaults to the Release Namespace) ""
metrics.serviceMonitor.interval Interval at which metrics should be scraped. ""
metrics.serviceMonitor.scrapeTimeout Timeout after which the scrape is ended ""
metrics.serviceMonitor.additionalLabels Additional labels that can be used so ServiceMonitor will be discovered by Prometheus {}
metrics.serviceMonitor.selector Prometheus instance selector labels {}
metrics.serviceMonitor.relabelings RelabelConfigs to apply to samples before scraping []
metrics.serviceMonitor.metricRelabelings MetricRelabelConfigs to apply to samples before ingestion []
metrics.serviceMonitor.honorLabels Specify honorLabels parameter to add the scrape endpoint false
metrics.serviceMonitor.jobLabel The name of the label on the target service to use as the job name in prometheus. ""
metrics.prometheusRule.enabled Create a custom prometheusRule Resource for scraping metrics using PrometheusOperator false
metrics.prometheusRule.namespace The namespace in which the prometheusRule will be created ""
metrics.prometheusRule.additionalLabels Additional labels for the prometheusRule {}
metrics.prometheusRule.rules Custom Prometheus rules []

ZooKeeper parameters

Name Description Value
zookeeper.enabled Enable ZooKeeper deployment. Needed for Solr cloud true
zookeeper.fourlwCommandsWhitelist A list of comma separated Four Letter Words commands that can be executed srvr,mntr,conf,ruok
zookeeper.containerPorts.client ZooKeeper client container port 2181
zookeeper.replicaCount Number of ZooKeeper nodes 3
zookeeper.persistence.enabled Enable persistence on ZooKeeper using PVC(s) true
zookeeper.persistence.storageClass Persistent Volume storage class ""
zookeeper.persistence.accessModes Persistent Volume access modes ["ReadWriteOnce"]
zookeeper.persistence.size Persistent Volume size 8Gi
externalZookeeper.servers List of external zookeeper servers to use []

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

helm install my-release \
  --set cloudEnabled=true oci://REGISTRY_NAME/REPOSITORY_NAME/solr

Note: You need to substitute the placeholders REGISTRY_NAME and REPOSITORY_NAME with a reference to your Helm chart registry and repository. For example, in the case of Bitnami, you need to use REGISTRY_NAME=registry-1.docker.io and REPOSITORY_NAME=bitnamicharts.

The above command enabled the Solr Cloud mode.

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 oci://REGISTRY_NAME/REPOSITORY_NAME/solr

Note: You need to substitute the placeholders REGISTRY_NAME and REPOSITORY_NAME with a reference to your Helm chart registry and repository. For example, in the case of Bitnami, you need to use REGISTRY_NAME=registry-1.docker.io and REPOSITORY_NAME=bitnamicharts. Tip: You can use the default values.yaml

Troubleshooting

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

Upgrading

To 9.0.3

This version uses solr container image version 9.5.0-debian-12-r7 which removes HDFS module due to CVEs found in it.

To 9.0.0

This major bump changes the following security defaults:

  • runAsGroup is changed from 0 to 1001
  • readOnlyRootFilesystem is set to true
  • resourcesPreset is changed from none to the minimum size working in our test suites (NOTE: resourcesPreset is not meant for production usage, but resources adapted to your use case).
  • global.compatibility.openshift.adaptSecurityContext is changed from disabled to auto.

This could potentially break any customization or init scripts used in your deployment. If this is the case, change the default values to the previous ones.

To 8.0.0

This major updates the Zookeeper subchart to it newest major, 12.0.0. For more information on this subchart’s major, please refer to zookeeper upgrade notes.

To 7.0.0

This major updates the Zookeeper subchart to it newest major, 11.0.0. For more information on this subchart’s major, please refer to zookeeper upgrade notes.

To 6.0.0

This major updates the Zookeeper subchart to it newest major, 10.0.0. For more information on this subchart’s major, please refer to zookeeper upgrade notes.

To 4.0.0

This major updates the Zookeeper subchart to it newest major, 9.0.0. For more information on this subchart’s major, please refer to zookeeper upgrade notes.

To 3.0.0

This major release renames several values in this chart and adds missing features, in order to be inline with the rest of assets in the Bitnami charts repository.

Affected values:

  • containerPort has been regrouped under the containerPorts map.
  • service.port has been regrouped under the service.ports map.
  • authentication.* parameters are renamed to auth.*.

Additionally updates the ZooKeeper subchart to it newest major, 8.0.0, which contains similar changes.

To 2.0.0

In this version, the image block is defined once and is used in the different templates, while in the previous version, the image block was duplicated for the main container and the metrics one

image:
  registry: docker.io
  repository: bitnami/solr
  tag: 8.9.0

VS

image:
  registry: docker.io
  repository: bitnami/solr
  tag: 8.9.0
...
metrics:
  image:
    registry: docker.io
    repository: bitnami/solr
    tag: 8.9.0

See PR#7114 for more info about the implemented changes

To 1.0.0

This major updates the Zookeeper subchart to it newest major, 7.0.0, which renames all TLS-related settings. For more information on this subchart’s major, please refer to zookeeper upgrade notes.

License

Copyright © 2024 Broadcom. The term “Broadcom” refers to Broadcom Inc. and/or its subsidiaries.

Licensed under the Apache License, Version 2.0 (the “License”); you may not use this file except in compliance with the License. You may obtain a copy of the License at

http://www.apache.org/licenses/LICENSE-2.0

Unless required by applicable law or agreed to in writing, software distributed under the License is distributed on an “AS IS” BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the License for the specific language governing permissions and limitations under the License.

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