# `node`

## Synopsis

The `node` command manages node-related operations.

```bash
olares-cli node <subcommand> [options]
```

## Subcommands

| Subcommand   | Description                                                                                                                   |
|--------------|-------------------------------------------------------------------------------------------------------------------------------|
| `masterinfo` | Retrieves system information about a target master node and checks whether the current node can join the cluster as a worker. |
| `add`        | Adds the current node to an existing Olares cluster. The node's environment must already meet all prerequisites for Olares.   |

## Options

| Option                          | Shorthand | Usage                                                                                                                                                                                                                                                     | Required | Default                        |
|---------------------------------|-----------|-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|-------------------------|--------------------------------|
| `--base-dir`                    | `-b`      | Sets the base directory for Olares.                                                                                                                                                                                                                       | No                   | `$HOME/.olares`                |
| `--master-host`                 |           | Defines the IP address of the master node.                                                                                                                                                                                                              | Yes                    | N/A                            |
| `--master-node-name`            |           | Specifies the Kubernetes node name of the master node.                                                                                                                                                                                                    | No                   | N/A                            |
| `--master-ssh-user`             |           | Sets the remote Linux user name for SSH login to the master node.                                                                                                                                                                                         | No                   | `root`                         |
| `--master-ssh-password`         |           | Provides the password for the Linux user.                                                                                                                                                     | Yes if a non-root `master-ssh-user` is specified.                     | N/A                            |
| `--master-ssh-private-key-path` |           | Specifies the path to the private SSH key for authenticating as the Linux user.                                                                                                                                                                           | No                   | `/root/.ssh/id_rsa`            |
| `--master-ssh-port`             |           | Sets the SSH service's listening port on the master node.                                                                                                                                                                                                 | No                   | `22`                           |
| `--version`                     | `-v`      | Specifies the Olares version. <br>Version values follow the format `x.y.z` (e.g., `1.10.0`) or include a build date (e.g., `1.10.0-20241109`).<br> Refer to the [GitHub Releases page](https://github.com/beclab/Olares/releases) for available versions. | No                   | Current version    |
| `--help`                        | `-h`      | Displays help information.                                                                                                                                                                                                                                | No                   | N/A                            |                                                        |

## Examples

```bash
# Retrieve system information from a master node at IP 192.168.1.15
olares-cli node masterinfo --master-host 192.168.1.15

# If a specific SSH key is required for authentication
olares-cli node masterinfo --master-host 192.168.1.15 --master-ssh-private-key-path /home/olares/.ssh/id_rsa

# For non-root SSH users, specify the username and password
olares-cli node masterinfo --master-host 192.168.1.15 --master-ssh-user olares --master-ssh-password password123

# Add the current node to a cluster with the master node at IP 192.168.1.15
olares-cli node add --master-host 192.168.1.15

# Specify a custom base directory for the installation
olares-cli node add --base-dir /custom/path --master-host 192.168.1.15
```