Execute Command

sealos exec is a command in the Sealos command-line tool, used to execute Shell commands or scripts on specified cluster nodes. This guide will detail its usage and options.

Basic Usage

The basic sealos exec command format is as follows:

sealos exec "shell command or script"

In the above command, shell command or script is the Shell command or script you want to execute on the cluster nodes.

Options

The sealos exec command provides the following options:

• -c, --cluster='default': The name of the cluster on which the command will be executed. The default is default.

• --ips=[]: Run commands on nodes with specified IP addresses.

• -r, --roles='': Run commands on nodes with specified roles. Currently supports master,node,registry.

Each option can be followed by one or more parameters.

Examples

For example, you can use the following command to view the contents of the /etc/hosts file on all nodes of the default cluster:

sealos exec "cat /etc/hosts"

If you want to view the contents of the /etc/hosts file on nodes with master and node roles in a cluster named my-cluster, you can use the following command:

sealos exec -c my-cluster -r master,node "cat /etc/hosts"

If you only want to view the contents of the /etc/hosts file on a node with the IP address 172.16.1.38, you can use the following command:

sealos exec -c my-cluster --ips 172.16.1.38 "cat /etc/hosts"

That's the usage guide for the sealos exec command, and we hope it has been helpful. If you encounter any problems during usage, feel free to ask us.