Scale Out Kubernetes Cluster at the Edges
Last Updated：2022-01-14
Scale Out CCE Kubernetes Cluster at the Edges
Prerequisites
- The account has enabled the BEC whitelist;
- The account has enabled the BEC high-performance network whitelist;
-
Prepare the edge cloud server used to deploy the cluster Node through the BEC console. The instance configuration requirements are as follows:
- The instances must be in the same region and the same operator as the Master instance;
- The instances must be bound to the public IP;
- The same instance cannot be used as the cluster master and node at the same time;
- The operating system uses Centos 7.6;
- For the instance, it is recommended to create a data disk, format, and mount it in advance;
- If the instance has a GPU, you need to install the GPU driver yourself in advance;
Cluster Scale-out
- Find the cluster to be scaled out from the CCE cluster list page and click the button “Add node” on the right.
- Select the lower right corner of the custom parameters to scale out the cluster.
- Add the node information you need to add.
A complete example of scaling out 2 nodes:
[
{
"instanceSpec":{
"machineType": "BEC",
"existed":true,
"existedOption":{
"existedInstanceID":"vm-xxxxxxxxxxxxxxxxxxxxx"
},
"deployCustomConfig": {
"kubeletRootDir": "/home/cce/kubelet",
"dockerConfig": {
"dockerDataRoot": "/home/cce/docker"
}
},
"becOption": {
"becRegion": "CENTRAL_CHINA",
"becCity": "ZHUZHOU",
"becServiceProvider": "CHINA_UNICOM"
},
"adminPassword":"",
"needGPU": false
}
},
{
"instanceSpec":{
"machineType": "BEC",
"existed":true,
"existedOption":{
"existedInstanceID":"vm-xxxxxxxxxxxxxxxxxxxxx"
},
"deployCustomConfig": {
"kubeletRootDir": "/home/cce/kubelet",
"dockerConfig": {
"dockerDataRoot": "/home/cce/docker"
}
},
"becOption": {
"becRegion": "CENTRAL_CHINA",
"becCity": "ZHUZHOU",
"becServiceProvider": "CHINA_UNICOM"
},
"adminPassword":"",
"needGPU": false
}
}
]Description of parameter configuration
Node Configuration Items
| Parameter Name | Description | Example |
|---|---|---|
| instanceSpec.machineType | Host type | BEC |
| instanceSpec.existed | Created or not. | true |
| instanceSpec.existedOption.existedInstanceID | The BEC instance ID | vm-xxxxxxxxxxxxxxxxxxxxx |
| instanceSpec.deployCustomConfig.kubeletRootDir | The kubelet data directory. If the data disk is mounted, recommend you select the data disk mounting directory. | /var/lib/kubelet |
| instanceSpec.deployCustomConfig.dockerConfig.dockerDataRoot | The docker data directory. If the data disk is mounted, recommend you select the data disk mounting directory. | /var/lib/docker |
| instanceSpec.becOption.becRegion | Region where the BEC virtual machine resides. | CENTRAL_CHINA |
| instanceSpec.becOption.becCity | City where the BEC virtual machine resides. | ZHUZHOU |
| instanceSpec.becOption.becServiceProvider | The service provider of the BEC virtual machine. | CHINA_UNICOM |
| instanceSpec.adminPassword | The password of the root account of the BEC instance. In the deployment phase, the cloud control plane needs to log in to the virtual machine through the root account for deployment. It can be changed after the deployment is complete. | |
| instanceSpec.needGPU | Whether to install a GPU-related container dependency package at the node. You do not need to install a GPU-related container dependency package at a non-GPU node. | false |
- Click Scale-out to start cluster scale-out after entering the configuration information.