This section goes over the features included in this release, starting with a description of major highlights, and finishing with a comprehensive list of all other features.

Deploy a single OpenSearch cluster composed of multiple Juju applications. Each application executes any of the available roles in OpenSearch. Large deployments support a diverse range of deployment constraints, roles, and regions.

How to set up a large deployment

Security automations

Manage TLS certificates and passwords in single point with Juju integrations and rotate your TLS certificates without any downtime.

Monitoring

Integrate with the Canonical Observability Stack (COS) and the OpenSearch Dashboards charm to monitor operational performance and visualize stored data across all clusters.

Backups

Backup and restore with an Amazon S3-compatible storage backend.

Other features

Automated rolling restart
Automated minor upgrade of OpenSearch version
Automated deployment for single and multiple clusters
Backup and restore for single and multiple clusters
User management and automated user and index setup with the Data Integrator charm
TLS encryption (HTTP and transport layers) and certificate rotation
Observability of OpenSearch clusters and operational tooling via COS and the OpenSearch Dashboards charm
Plugin management: Index State Management, KNN and MLCommons
OpenSearch security patching and bug-fixing mechanisms

For a detailed list of commits throughout all revisions, check our GitHub Releases.

Requirements and compatibility

Juju v3.5.3+
- Older minor versions of Juju 3 may be compatible, but are not officially supported.
LXD v6.1
- Older LXD versions may be compatible, but are not officially supported.
Integration with a TLS charm
- self-signed-certificates revision 155+ or manual-tls-certificates revision 108+

See the system requirements page for more information about software and hardware prerequisites.

Integrations

Like all Juju charms, OpenSearch can easily integrate with other charms by implementing common interfaces/endpoints.

OpenSearch can be seamlessly integrated out of the box with:

TLS certificates charms
- Note: Charmed OpenSearch supports integration with tls-certificates library v2 or higher.
COS Lite
OpenSearch Dashboards
Data Integrator
S3 Integrator

See the Integrations page for a list of all interfaces and compatible charms.

Software contents

This charm is based on the Canonical opensearch-snap. It packages:

OpenSearch v2.17.0
OpenJDK v21

Known issues and limitations

The following issues are known and scheduled to be fixed in the next maintenance release.

We currently do not support node role repurposing from cluster manager to a non cluster manager
Storage re-attachment from previous clusters is not currently automated. For manual instructions, see the how-to guide How to recover from attached storage.

Join the community

Charmed OpenSearch is an official distribution of OpenSearch . It’s an open-source project that welcomes community contributions, suggestions, fixes and constructive feedback.

Raise an issue or feature request in the GitHub repository.
Meet the community and chat with us in our Matrix channel or leave a comment.
See the Charmed OpenSearch contribution guidelines on GitHub and read the Ubuntu Community’s Code of Conduct.

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