# External access required by the Charm Depending on the configuration of the charm, the following external accesses are needed: - Access to the PostgreSQL database (mandatory). - Access to the S3 server is S3 is configured in the charm. - Access to [GitHub](http://github.com) to download Promtail if the logging interface is used in the charm. If the option “external system avatars enabled” is enabled in the admin, access to [https://avatars.discourse.org](https://avatars.discourse.org) is necessary. Besides that, other services, like link previews and installing themes from a git repository may need access to external sites to work, so allowing internet access to the Discourse instance is recommended. In restricted environments, the `model-config` options `juju-http-proxy`, `juju-https-proxy` and `juju-no-proxy` can be used to set up a proxy for Discourse, see [Using proxies with Charmed Kubernetes](https://documentation.ubuntu.com/canonical-kubernetes/latest/charm/howto/proxy/) for more information.