红帽全球峰会8.6. The Cluster Samples Operator in a disconnected environment
In a disconnected environment, you must take additional steps after you install a cluster to configure the Cluster Samples Operator. Review the following information in preparation.
8.6.1. Cluster Samples Operator assistance for mirroring
During installation, OpenShift Container Platform creates a config map named imagestreamtag-to-image in the openshift-cluster-samples-operator namespace.
The imagestreamtag-to-image config map contains an entry, the populating image, for each image stream tag.
The format of the key for each entry in the data field in the config map is <image_stream_name>_<image_stream_tag_name>.
During a disconnected installation of OpenShift Container Platform, the status of the Cluster Samples Operator is set to Removed. If you choose to change it to Managed, it installs samples.
The use of samples in a network-restricted or discontinued environment might require access to services external to your network. Some example services include: Github, Maven Central, npm, RubyGems, PyPi and others. There might be additional steps to take that allow the Cluster Samples Operators objects to reach the services they require.
Use the following principles to determine which images you need to mirror for your image streams to import:
-
While the Cluster Samples Operator is set to
Removed, you can create your mirrored registry, or determine which existing mirrored registry you want to use. - Mirror the samples you want to the mirrored registry using the new config map as your guide.
-
Add any of the image streams you did not mirror to the
skippedImagestreamslist of the Cluster Samples Operator configuration object. -
Set
samplesRegistryof the Cluster Samples Operator configuration object to the mirrored registry. -
Then set the Cluster Samples Operator to
Managedto install the image streams you have mirrored.
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