Go modules · #3059 by repository stars

github.com/apache/solr-operator

v0.9.1apache/solr-operator ↗New releases in your daily digest, changelog included.

Last release 2 months ago
20 Jul 2026
Ships unpredictably
gaps range from 8 days to 12 months
Nearly every release is documented
notes for 10 of 11 stable releases
Nothing withdrawn
no release was ever pulled
6 years old
105 releases · first in 2021

Release timeline

105 releases since 2021

202120222023202420252026

20212026

One column per quarter.

Releases

v0.9.2-0.20260609210305-6acf1335f19b9 Jun 2026pre-release
Nothing published for this version
v0.9.119 Mar 2025
initContainers can once again connect to ZooKeeper when Solr 9.8.x images are used
Bug Fixes

initContainers can once again connect to ZooKeeper when Solr 9.8.x images are used

podReadinessGates on existing solrcloud resources are now properly updated following an operator upgrade

'setup-zk' initContainer no longer emits "No such file or directory" warning
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v0.9.1 Latest

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SolrClouds now support namespace sharing among pod containers in a pod.

Improvements

SolrClouds now support namespace sharing among pod containers in a pod.
SolrClouds now support auto-readOnlyRootFilesystem setting.
'imagePullSecret' now used when fetching operator image, if provided.
SolrCloud now accepts container-level securityContext settings for Solr container.

Bug Fixes

gen-pkcs12-keystore initContainer now supports 'ca.crt'-less TLS secrets
setup-zk initContainer now gracefully handles absent security.json on initial upload.
The operator will now delete ingress and per-node services when external ingress is disabled.

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v0.9.0

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v0.8.18 Apr 2024

Miscellaneous bugfixes and hardening for the "managed scaling" feature adding in v0.8.0.

Bug Fixes

Miscellaneous bugfixes and hardening for the "managed scaling" feature adding in v0.8.0.
Init-containers now avoid writing to "/tmp" and other root FS locations, to better support "read-only" root filesystems
SolrPrometheusExporter no longer fails liveness probes when the SolrCloud is too large

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v0.8.1

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v0.8.016 Oct 2023

Upgrade Notes & Compatibility Warnings

The minimum supported version of Solr has been set to Solr 8.11
The minimum Kubernetes version supported is now v1.22
Please refer to the documentation for a complete list of upgrade warnings

Improvements

Solr 8.11 features are now supported by default, such as maxBooleanClauses, metrics disabling, health endpoint for readinessCheck
Rolling Updates for SolrClouds using ephemeral storage are now safer and replicas are balanced at the end of the operation to ensure optimal resource utilization.
- Replica balancing is only supported when Solr 9.3+ is used.

New Features

Managed scale up and scale down are now supported for SolrClouds.
- By default, when scaling down a SolrCloud, replicas will be migrated off Pods before they are deleted.
- By default, when scaling up a SolrCloud, replicas will be balanced across all Pods after the SolrCloud has been scaled up. (Only supported for Solr 9.3+)
Keystore/Truststore passwords can be explicitly set in the SolrCloud CRD for mountedDir SSL. This enables the use of the CertManager CSI Driver with Solr.

Bug Fixes

SSL bugs with Solr 9 have been fixed, and v0.8.0 will successfully support SSL for Solr 8.11 and 9.4+

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v0.8.0

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v0.7.117 Jul 2023

Upgrade Notes & Compatibility Warnings

Please refer to the documentation for a complete list of upgrade warnings

Bug Fixes

Upgraded the Kubernetes API clients to fix crash when running with Kubernetes 1.27. #583

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v0.7.1

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v0.7.019 Apr 2023Deprecated

Options deprecated in v0.6.0 have been removed. #553

Upgrade Notes & Compatibility Warnings

Please refer to the documentation for a complete list of upgrade warnings
The minimum supported Kubernetes version is now v1.21.
The required Zookeeper Operator version is now v0.2.15. #549
Options deprecated in v0.6.0 have been removed. #553

New Features

Clusterwide PodDisruptionBudgets are now created for SolrClouds by default. #471 and #538
SolrBackups will now backup all collections if no collections are provided. #515

Improvements

During a rolling restart/update, SolrCloud pods are now taken out of the common service endpoint before they are decommissioned. This should improve request reliability during rolling restarts. #529
Many missing Provided Zookeeper options have been added. #477, #534 and #557
Using volume backupRepositories now initialize faster on pod creation and work with custom user/fsGroup. #537
Default SolrCloud and SolrPrometheusExporter Pod probes have been improved. #510
The Solr Operator now patches Solr resource statuses. This will reduce needless error logging. #544
Custom annotations can be added to serviceAccounts created by the helm charts. #480
The SolrPrometheusExporter service should now work with non-operator Prometheus setups. #483

Bug Fixes

Non-recurring backups now work as-expected. #509
Custom persistent data volume names no longer cause the Solr Operator to crash. #479
Volume backupRepositories now work with custom runAsUser and fsGroup options. #519

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v0.7.0

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v0.6.07 Aug 2022

Upgrade Notes & Compatibility Warnings

Please refer to the ArtifactHub changelog for a complete list of changes

Bug Fixes

Users are now able to specify resource constraints for all init-containers.
The default Solr image version used in newly created solrcloud's has been updated from 8.9 to 8.11
solrcloud now has a 'solrZkOpts' field, allowing users to specify any system properties needed to connect to their ZooKeeper cluster.
Users running in GKE can now omit the 'gcsCredentialSecret' field from the GCS backup repositories, and fallback on "Workload Identity" and other "credential-less" authentication mechanisms offered by Google Cloud.

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v0.6.0

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v0.5.115 Mar 2022Security

Fix security vulnerabilities introduced by dependencies

Upgrade Notes & Compatibility Warnings

Please refer to the documentation for a complete list of upgrade warnings
The project now uses GoLang 1.17

Bug Fixes

Fix security vulnerabilities introduced by dependencies
Ability to run sidecars of the Solr Operator that use the root user, when installing via the Helm Chart
The zk.external option in the solr helm chart is now functional
Resource checking for pods across all generated resources has been fixed, will not overwrite equivalent resources with different units
- Necessary step for GKE Autopilot and the Vertical Pod Autoscaler
Support ArgoCD for the CRDs
Fix bugs in documentation

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v0.5.1

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v0.5.011 Nov 2021

Upgrade Notes & Compatibility Warnings

Please refer to the documentation for a complete list of upgrade warnings
The minimum supported Kubernetes version is now v1.19
Remove Persistence option for SolrBackup. by @HoustonPutman in #357

New Features

Support custom Lifecycle for Solr & PrometheusExporter containers by @vladiceanu in #324
Allow users to take GCS-based backups by @gerlowskija in #302
Add support for Solr Modules and additional libs by @HoustonPutman in #332
Add support for S3Repositories by @HoustonPutman in #345
Add ability to set pod topologySpreadConstraints by @HoustonPutman in #350
Support to bootstrap from a user-supplied security.json and minor refactorings to pass auth headers through a Context by @thelabdude in #356
Enable Solr Operator metrics when using the helm chart. by @HoustonPutman in #360
Ability to set ingressClassName for v1 Ingress. by @HoustonPutman in #363
Add support for more ZK Pod options. by @HoustonPutman in #361
Specify individual backupRepo availability in SolrCloud Status by @HoustonPutman in #358
Add ability to schedule recurring incremental backups by @HoustonPutman in #359

Improvements

Upgrade to use Kubebuilder 3 by @HoustonPutman in #321
Allow for managed restarts across multiple SolrCloud resources. by @HoustonPutman in #349
Enable leader election for the operator by default. by @HoustonPutman in #367
Add example on how to trigger manual restart to docs by @nosvalds in #354
Refactor security related code into a separate solr_security_util.go vs. sprinkled throughout the codebase. by @thelabdude in #334
Start documenting Solr features supported in future versions. by @HoustonPutman in #342
Clear up difference between SolrCloud CRD and Solr Helm chart options by @HoustonPutman in #362
Better messaging around supported Solr images. by @HoustonPutman in #373

Bug Fixes

Fix imagePullSecrets bug when updating Zookeeper Clusters by @HoustonPutman in #344
Properly resolve the name of the basic auth secret for a SolrCloud when calling the backup API by @thelabdude in #370

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v0.5.0

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v0.4.07 Sept 2021Security

Changed Solr Operator base Docker image to reduce vulnerabilities

Upgrade Notes & Compatibility Warnings

Please refer to the documentation for a complete list of upgrade warnings
The Zookeeper Operator dependency has been upgraded to v0.2.12 (#271)
Removed deprecated Solr Operator Helm chart option useZkOperator, use zookeeper-operator.use instead (#286)

New Features

A helm chart to template and deploy SolrCloud resources (#112)
Ability to schedule automatic restarts for SolrClouds (#281)
Ability to use HostPath volumes for ephemeral Solr storage (#266)
Customize serviceAccountName for SolrCloud and SolrPrometheusExporter (#264)
Introduced ephemeral option for Zookeeper storage (#259)
Ability to customize probes for PrometheusExporter (#282)
Add a mountedServerTLSDir config option to support a unique certificate per pod mounted dynamically by an external agent or CSI driver (#291)
Ability to terminate TLS at Ingress for SolrCloud (#268)
Ability to schedule automatic restarts for SolrPrometheusExporters (#310)
Ability to specify ZK Config properties for provided Zookeeper Clusters (#290)
Option to watch for updates to the mTLS client certificate used by the operator to call Solr pods (#317)
Configuration options to support an additional client TLS cert in addition to the server certificate (#300)

Improvements

Default Solr Version upgraded to 8.9, does not affect existing clouds (#285)
Changed Solr Operator base Docker image to reduce vulnerabilities (#294)
Grant access to the /admin/zookeeper/status path to the k8s role in the initial security.json (#289)

Bug Fixes

Remove users role from the all permission in the initial security.json (#274)

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v0.4.0

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v0.3.023 Apr 2021