# Reference Technical specifications and architectural details for the WordPress charm serve as authoritative look-up material when configuring, extending, or integrating the charm. ## Configuration and operations Operators control charm behavior through configuration options and Juju actions. Understanding the overall charm architecture provides the structural context needed to see how those settings and actions interact at runtime. * [Configurations](https://canonical.com/juju/docs/wordpress-k8s-charm/latest/reference/configurations/index.html.md) * [Actions](https://canonical.com/juju/docs/wordpress-k8s-charm/latest/reference/actions/index.html.md) * [Charm architecture](https://canonical.com/juju/docs/wordpress-k8s-charm/latest/reference/charm-architecture/index.html.md) ## Connectivity The WordPress charm exposes its service externally and communicates with other applications through Juju relation endpoints. Correct connectivity configuration is essential for both end-user access and cross-application integration. * [Relation endpoints](https://canonical.com/juju/docs/wordpress-k8s-charm/latest/reference/relation-endpoints/index.html.md) * [External access](https://canonical.com/juju/docs/wordpress-k8s-charm/latest/reference/external-access/index.html.md) ## Extensibility Your WordPress site’s functionality is extended through plugins and themes. The charm provides mechanisms for adding or customizing them within a Juju-managed deployment. * [Plugins](https://canonical.com/juju/docs/wordpress-k8s-charm/latest/reference/plugins/index.html.md) * [Themes](https://canonical.com/juju/docs/wordpress-k8s-charm/latest/reference/themes/index.html.md)