Creating a Kubernetes Cluster

Context

Creating a Cluster

1. Log in to the CCE console.
   • If you have no clusters, click Buy Cluster on the wizard page.
   • If you have CCE clusters, choose Clusters in the navigation pane, click Buy Cluster and select the CCE standard cluster.

2. On the Buy Cluster page, configure parameters following instructions.

   Only mandatory parameters are described in this example. You can keep the default values for most other parameters. For details, see Table 1.

   Table 1 Parameters for creating a cluster

   Parameter	Description
   Basic Settings
   * Cluster Name	Name of the cluster to be created. A cluster name contains 4 to 128 characters starting with a lowercase letter and not ending with a hyphen (-). Only lowercase letters, digits, and hyphens (-) are allowed.
   * Enterprise Project	This parameter is only displayed for enterprise users who have enabled enterprise projects.
   * Cluster Version	Choose the latest version.
   * Cluster Scale	Maximum number of worker nodes that can be managed by the cluster. If you select Nodes: 50, the cluster can manage a maximum of 50 worker nodes.
   Network Settings
   * Network Model	You can select VPC network or Tunnel network. Retain the default value.
   * VPC	VPC where the cluster will be located. If no VPC is available, click Create VPC to create one. After creating the VPC, click the refresh icon.
   * Master Node Subnet	Subnet where master nodes of the cluster are located.
   * Container CIDR Block	CIDR block used by containers. It controls how many pods can run in the cluster. Retain the default value.
   * Pod IP Addresses Reserved for Each Node	The number of container IP addresses that can be allocated to each node (alpha.cce/fixPoolMask) when creating a cluster. This parameter determines the maximum number of pods that can be created on each node.
   * IPv4 Service CIDR Block	CIDR block for Services used by containers in the same cluster to access each other. The value determines the maximum number of Services you can create. The value cannot be changed after creation. Retain the default value.

3. Click Next: Select Add-on. On the page displayed, select the add-ons to be installed during cluster creation.
4. Click Next: Configure Add-on. Retain the default settings.
5. Click Next: Confirm Settings, check the displayed cluster resource list, and click Submit.

   Wait for the cluster to be created. It takes approximately 5 to 10 minutes.

   The newly created cluster in the Running state with zero nodes will be displayed on the Clusters page.

Creating a Node

1. Log in to the CCE console.
2. Click the name of the cluster to access the cluster console.
3. In the navigation pane, choose Nodes. In the right pane, click the Nodes tab, click Create Node in the upper right corner, and configure parameters following instructions.

   Only mandatory parameters are described in this example. You can keep the default values for most other parameters.

   Table 2 Parameters for creating a node

   Parameter	Description
   Configurations
   * AZ	Select an AZ for the node as needed. You can select Random.
   * Node Type	Select a node type based on service requirements. The available node flavors will then be displayed in the Specifications area for you to choose from. In this example, Elastic Cloud Server (VM) is selected.
   * Specifications	Select a node flavor that best fits your service needs.
   * Container Engine	Select a container engine based on service requirements.
   * OS	Select an OS for the node.
   * Login Mode	Password: Set and confirm a password for node login. The default username is root. Keep the password secure. It cannot be retrieved if forgotten. Key Pair: Select a key pair for node login and confirm that you have the key file. Without this file, you will not be able to log in. Key pairs are used for identity authentication when you remotely access nodes. If you do not have a key pair, click Create Key Pair.
   Storage Settings
   * System Disk	Select the system disk size based on your service requirements. The default value is 50 GiB.
   * Data Disk	Set the data disk size and quantity based on your service requirements. At least one data disk is required for container runtime and kubelet components. The default value is 100 GiB.
   Network Settings
   * VPC/Node Subnet	The node subnet selected during cluster creation is used by default. You can choose another subnet instead.

4. At the bottom of the page, select the node quantity, and click Next: Confirm.
5. Review the node specifications, read the instructions, select I have read and understand the preceding information, and click Submit.

   Wait for the nodes to be created. It takes approximately 5 to 10 minutes.

   The created node will be displayed on the Nodes page.