> For the complete documentation index, see [llms.txt](https://docs.trilio.io/kubernetes/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.trilio.io/kubernetes/5.0.x/appendix/operatorhub-custom-catalogsource/restricted-network-installation-for-tvk-on-ocp-openshift.md).

# Custom CatalogSource in a restricted environment

Please follow the official instructions from Red Hat to install an Operator within a restricted environment.

For OCP 4.6 - follow these [instructions](https://docs.openshift.com/container-platform/4.6/operators/admin/olm-restricted-networks.html)

For OCP 4.8 - follow these [instructions](https://docs.openshift.com/container-platform/4.8/operators/admin/olm-restricted-networks.html)

For OCP 4.10 - follow these [instructions](https://docs.openshift.com/container-platform/4.10/operators/admin/olm-restricted-networks.html)