April 2018
Intermediate to advanced
468 pages
14h 34m
English
Content preview from Mastering Kubernetes - Second Edition
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Naming rules and customization
The cluster name you supply to kubefed join must be a valid RFC 1035 label. RFC 1035 allows only letters, digits, and hyphens, and the label must start with a letter.
Furthermore, the federation control plane requires the credentials of the joined clusters to operate on them. These credentials are obtained from the local kubeconfig. The Kubefed join command uses the cluster name specified as the argument to look for the cluster's context in the local kubeconfig. If it fails to find a matching context, it exits with an error.
This might cause issues in cases where context names for each cluster in the federation don't follow RFC 1035 label naming rules. In such cases, you can specify a cluster name that conforms ...
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