Kubernetes Requirements

You must have a running Kubernetes cluster that meets the following requirements:

• The Kubernetes cluster and container engine must meet the minimum version requirements outlined in document ID 2723908.1 on My Oracle Support.
• An administrative host from which to deploy the products: This host could be a Kubernetes Control host, a Kubernetes Worker host, or an independent host. This host must have kubectl deployed using the same version as your cluster.

  Note:

  All the commands in this guide should be run from the Kubernetes administrative host unless otherwise stated.
• The Kubernetes cluster must have sufficient nodes and resources.
• You must have the cluster-admin role to install the WebLogic Kubernetes Operator.
• An installation of Helm is required on the Kubernetes cluster. Helm is used to create and deploy the necessary resources on the Kubernetes cluster.
• A supported container engine such as CRI-O or Docker must be installed and running on the Kubernetes cluster.
• The nodes in the Kubernetes cluster must have access to a persistent volume such as a Network File System (NFS) mount, or a shared file system.
• The system clocks on node of the Kubernetes cluster must be synchronized. Run the date command simultaneously on all the nodes in each cluster and then synchronize accordingly.

Database Requirements

Container Registry Requirements

Your container registry must be accessible from all nodes in the Kubernetes cluster.

Alternatively if you don’t have your own container registry, you can load the images on each worker node in the cluster. Loading the images on each worker node is not recommended as it incurs a large administrative overhead.