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Version: 4.0.0

Adding Cluster Nodes with sealos add

sealos add is a command in the Sealos command-line tool used to add nodes to a cluster. This guide provides detailed instructions on how to use the command and its options.

Note: Make sure the number of control nodes is odd to ensure proper etcd leader election.

Basic Usage​

Adding Nodes​

To add nodes to the cluster, you can use the --nodes option:

sealos add --nodes x.x.x.x

In the above command, replace x.x.x.x with the IP address of the node you want to add.

Adding Control Nodes​

To add control nodes to the cluster, you can use the --masters option:

sealos add --masters x.x.x.x

Adding Control and Regular Nodes Together​

If you want to add both control nodes and regular nodes to the cluster, you can use the --masters and --nodes options together:

sealos add --masters x.x.x.x --nodes x.x.x.x
sealos add --masters x.x.x.x-x.x.x.y --nodes x.x.x.x-x.x.x.y

Options​

The sealos add command provides the following options:

  • --cluster='default': The name of the cluster to perform the add operation. Defaults to default.

  • --masters='': The control nodes to be added.

  • --nodes='': The nodes to be added.

Each option can be followed by an argument.

Usage Example​

Here's an example usage that adds a node with the IP address 192.168.0.2 to the cluster:

sealos add --nodes 192.168.0.2

That's it for the usage guide of the sealos add command. We hope this helps you. If you have any questions or encounter any issues during the process, feel free to ask us.