•
Kubernetes terminology for Rancher
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Requirements for Rancher on NetApp HCI
Before you install Rancher on NetApp HCI, ensure your environment and your NetApp
HCI system meet these requirements.
If you accidentally deploy Rancher on NetApp HCI with incorrect information (such as an
incorrect Rancher server FQDN), there is no way to correct the deployment without removing
it and redeploying. You will need to remove the Rancher on NetApp HCI instance and then
redeploy Rancher on NetApp HCI from NetApp Hybrid Cloud Control UI. See
Rancher installation on NetApp HCI
Node requirements
• Ensure that your NetApp HCI system has at least three compute nodes; this is required for full resiliency.
Rancher on NetApp HCI is not supported on storage-only configurations.
• Ensure that the datastore you intend to use for the Rancher on NetApp HCI deployment has at least 60GB
of free space.
• Ensure that your NetApp HCI cluster is running management services version 2.17 or later.
Node details
Rancher on NetApp HCI deploys a three-node management cluster.
All nodes have the following characteristics:
vCPU
RAM (GB)
Disk (GB)
2
8
20
Network requirements
• Ensure that the network that you intend to deploy the Rancher on NetApp HCI management cluster has a
route to the management node management network.
• Rancher on NetApp HCI supports DHCP addresses for the control plane (Rancher server) and user
clusters, but we recommend static IP addresses for production environments. Ensure that you have
allocated the necessary static IP addresses if you are deploying in a production environment.
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Rancher server requires three static IP addresses.
◦
Each user cluster requires as many static IP addresses as nodes in the cluster. For example, a user
cluster with four nodes requires four static IP addresses.
◦
If you plan on using DHCP addressing for the Rancher control plane or user clusters, ensure that the
DHCP lease duration is at least 24 hours.
• If you need to use an HTTP proxy to enable internet access for Rancher on NetApp HCI, you need to make
a pre-deployment change to the management node. Log in to your management node using SSH and
follow the
in the Docker documentation to manually update the proxy settings for Docker.
• If you enable and configure a proxy server during deployment, the following IP address ranges and
Summary of Contents for HCI
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