# Cli Check Node

The `check node` command evaluates a node to ensure it meets the requirements for Kubernetes cluster creation. The command checks for the following particulars:

* Mandatory Checks
  * Existing pf9 packages
  * Installing missing packages
  * Sudo Access Check
  * Ports Check
  * OS Check
  * Existing Kubernetes Cluster Check
  * Check execute permissions on /tmp folder
  * Disabling swap and removing swap in fstab
* Optional Checks
  * Removal of existing pf9ctl (Python-Based CLI)
  * Resources(CPU, Disk, Memory check)

## Syntax Example

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{% tab title="Bash" %}

```bash
pf9ctl check-node [flags]
```

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## All Available Commands and Flags

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{% tab title="Bash" %}

```bash
pf9ctl check-node --help
Check if a node satisfies prerequisites to be ready to be added to a Kubernetes cluster. Read more
	at https://platform9.com/blog/support/managed-container-cloud-requirements-checklist/

Usage:
  pf9ctl check-node [flags]

Flags:
  -h, --help               help for check-node
  -i, --ip strings         IP address of host to be prepared
      --mfa string         MFA token
  -p, --password string    ssh password for the nodes (use 'single quotes' to pass password)
  -s, --ssh-key string     ssh key file for connecting to the nodes
  -e, --sudo-pass string   sudo password for user on remote host
  -u, --user string        ssh username for the nodes

Global Flags:
      --no-prompt   disable all user prompts
      --verbose     print verbose logs
```

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{% endtabs %}

## Command Examples

### Check Local Node

{% tabs %}
{% tab title="Bash" %}

```bash
pf9ctl check-node
2021-02-22T08:03:41.6565Z	INFO	Loading config...


Removal of existing CLI : PASS
Existing Installation Check : PASS
SudoCheck : PASS
CPUCheck : PASS
DiskCheck : FAIL
MemoryCheck : PASS
PortCheck : PASS
Node not ready. See /root/pf9/log/pf9ctl-20210222.log or use --verbose for logs
```

{% endtab %}
{% endtabs %}

### Check Remote Node

{% tabs %}
{% tab title="Bash" %}

```bash
pf9ctl check-node -i 10.128.242.250 -u ubuntu
2021-02-22T08:06:40.5506Z	INFO	Loading config...
Enter Password:

Removal of existing CLI : PASS
Existing Installation Check : FAIL
SudoCheck : PASS
CPUCheck : PASS
DiskCheck : PASS
MemoryCheck : PASS
PortCheck : PASS
Node not ready. See /root/pf9/log/pf9ctl-20210222.log or use --verbose for logs
```

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{% endtabs %}


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