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OpenStack Searchlight

OpenStack Searchlight is an OpenStack project that provides indexing and search across OpenStack resources using a shared search service (search and discovery).

  • Centralized indexing and search of OpenStack cloud resources via a common Application Programming Interface (API) (search and discovery)
  • Integration with other OpenStack services to index their resource metadata (cloud infrastructure management)
  • Support for querying across multiple resource types and attributes in a single search request (search and discovery)
  • Use of a pluggable backend search engine to store and query indexed data (data persistence and query)
  • Provides a foundation for user interfaces and tools that need cross-service resource search in OpenStack deployments (cloud operations tooling)

More About OpenStack Searchlight

OpenStack Searchlight is an OpenStack service focused on indexing and search for OpenStack-based clouds (search and discovery). It addresses the need to query and discover resources that are managed by different OpenStack services, such as compute, networking, and storage, through a unified search interface instead of separate service-specific listings and filters.

The project exposes a Representational State Transfer (REST) API (API services) that allows clients to index, update, and query metadata about OpenStack resources. It integrates with other OpenStack services by consuming their notifications or using their APIs to build and maintain an index of resource information (cloud integration). This design enables operators and users to search across instances, images, volumes, networks, and other resource types using a single query model.

Searchlight uses a pluggable search backend (data persistence and query), commonly based on a distributed search engine, to store indexed documents representing OpenStack resources. The indexing model is extensible, allowing definitions of resource types, fields, and mappings so that administrators can tune which metadata is searchable and how it is represented. The service typically runs alongside other OpenStack control plane components and follows the standard OpenStack authentication and authorization model through Keystone (identity and access).

In enterprise environments, Searchlight is used to support operational dashboards, self-service portals, and troubleshooting workflows that require locating resources by attributes such as project, owner, metadata tags, or configuration details (cloud operations tooling). It can assist with inventory queries, governance checks, and tracking of resource usage by enabling cross-project and cross-service search while still enforcing policy and role-based access controls.

From an architectural perspective, Searchlight operates as a stateless API layer in front of the search backend, with worker processes responsible for indexing and update tasks (cloud infrastructure management). It consumes event notifications from other OpenStack services or performs periodic indexing runs, ensuring that the search index reflects current resource state. The project fits into the OpenStack ecosystem as an optional service that enhances observability and manageability of cloud resources through search capabilities.

Within a technical taxonomy, OpenStack Searchlight can be categorized as a cloud resource search and indexing service (search and discovery) and as part of the broader OpenStack control plane. It provides a foundation for building user-facing tools, command-line utilities, or automation that depend on search-driven access to OpenStack resource metadata.