Mirror registry for Red Hat OpenShift introduction
For disconnected deployments of Red Hat OpenShift Container Platform, a container registry is required to carry out the installation of the clusters. To run a production-grade registry service on such a cluster, you must create a separate registry deployment to install the first cluster. The mirror registry for Red Hat OpenShift addresses this need and is included in every Red Hat OpenShift Container Platform subscription. It is available for download on the "OpenShift console Downloads" page.
The mirror registry for Red Hat OpenShift allows users to install a small-scale version of Red Hat Quay and its required components by using the mirror-registry command-line interface (CLI) tool. The mirror registry for Red Hat OpenShift is deployed automatically with pre-configured local storage and a local database. It also includes auto-generated user credentials and access permissions with a single set of inputs and no additional configuration choices to get started.
The mirror registry for Red Hat OpenShift provides a pre-determined network configuration and reports deployed component credentials and access URLs upon success. A limited set of optional configuration inputs such as fully qualified domain name (FQDN) services, superuser name and password, and custom TLS certificates are also provided. This provides users with a container registry so that they can easily create an offline mirror of all Red Hat OpenShift Container Platform release content when running Red Hat OpenShift Container Platform in restricted network environments.
Use of the mirror registry for Red Hat OpenShift is optional if another container registry is already available in the install environment.