Creating a BareMetal node group for Extend: Managed Service for Kubernetes®
Extend: Managed Service for Kubernetes® enables you to create a BareMetal node group in a Managed Service for Kubernetes cluster. When creating a group, select a configuration and number of servers. Extend: Managed Service for Kubernetes® will rent the servers, configure them automatically, and connect them to your cluster.
Before creating a node group:
- Create a Managed Service for Kubernetes 1.35 cluster with Cilium tunnel mode (Cilium CNI) enabled, or make sure an existing cluster meets these requirements. Tunnel mode can only be activated at the step of creating a cluster.
- Check the cluster network settings to get the cluster CIDR and service CIDR.
- Set up a private BareMetal subnet. Make sure it belongs to a VRF and DHCP is enabled in its settings. If there is no suitable subnet, create one.
- Create a private connection between the VRF and cloud network hosting the Managed Service for Kubernetes master. Use a virtual Cloud Router for the connection.
- Add the cluster CIDR and service CIDR to the virtual router as announced IP prefixes of the master's cloud network.
After completing the above steps, the BareMetal item will appear in the node group creation menu.
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In the management console, select the folder.
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Navigate to Managed Service for Kubernetes.
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Select the cluster.
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Navigate to the Node management tab, then to Node group.
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Click Create a node group and select BareMetal.
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In the BareMetal server configuration step:
- Specify Nodes per group.
- Select a server configuration with appropriate CPUs, RAM, and disk type and size.
The availability of configurations depends on the server pool. A private subnet connects servers from the same pool, so in the next step, select a subnet from the pool where the selected configuration is available.
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In the Node group setup step:
- Specify a node group name. Optionally, add a description and labels.
- Make sure the Kubernetes version field is set to
1.35. - Under Network interfaces, in the Private subnet field for the first interface, select the subnet you set up from the pool where the selected configuration is available. The subnet must have DHCP enabled, and its VRF must be connected to the master's cloud network.
- If your nodes require internet access, enable Internet access for the second interface. Public IP addresses will be assigned automatically. Internet access is optional for the BareMetal node group.
- Configure Maintenance frequency / Disable and specify Maximum unavailable nodes.
- Add Node taints and Node labels as needed.
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Click Create a node group.
After the node group is created, Extend: Managed Service for Kubernetes® will rent the selected number of servers, configure them, and connect them to the cluster. The group will appear in the list of node groups of the BareMetal type.