Lab-Commands.rtf

1. CRAWL
------------------------------------------------
SSH, Bash, the Guest Shell, and Python Scripting
------------------------------------------------

# Change directory (cd) to our workshop directory (if you are at Cisco Live)

cd /home/devnet/workshop/DEVWKS-2037


# Create and activate a virtual environment

python3 -m venv <CHOOSE A NAME>
source <NAME YOU CHOSE>/bin/activate


# Clone repo with files (not necessary if you are at Cisco Live)

git clone https://github.com/xanderstevenson/nxos-device-level-apis.git
cd nxos-device-level-apis
ls


# SSH into DevNet sandbox

ssh admin@sbx-nxos-mgmt.cisco.com
yes
Admin_1234!
terminal length 0
show version
show hostname
show ip interface brief


# Run Bash

run bash
whoami
pwd
exit


# Run Guestshell

guestshell
dohost "show cdp global" "show ssh server"
exit


# Python interpreter

python


# Python code
# Retrieve the interface list in JSON format

from cli import *
import json
intflist = json.loads(clid('show interface brief'))

# Loop through the interfaces and print those that are 'up'
i = 0
while i < len(intflist['TABLE_interface']['ROW_interface']):
    intf = intflist['TABLE_interface']['ROW_interface'][i]
    # Check if 'state' key exists in the intf dictionary
    if 'state' in intf and intf['state'] == 'up':
        print(intf['interface'])
    i += 1

exit()
exit



2. WALK
---------------------------
NETCONF, RESTCONF, and gRPC
---------------------------

# Install NCCLient and run code in Python interpreter (this step may not work at Cisco Live)

pip install ncclient

python

from ncclient import manager
nxv = manager.connect(host="131.226.217.151", port=830, username="admin", password="Admin_1234!", device_params={'name':'nexus'}, hostkey_verify=False)
print(nxv.get_config(source='running', filter="<filter><System xmlns='http://cisco.com/ns/yang/cisco-nx-os-device'></System></filter>").data_xml)
exit()


3. JOG
------------------------------------------------------------------
Using Ansible to Abstract Away SSH, Bash, and Guest Shell Commands
------------------------------------------------------------------

# Install paramiko and run Ansible playbook

pip install paramiko
ansible-playbook ansible_playbooks/nxos_commands.yml -i hosts



4. RUN
-------------------------------------------
NX-API: Device-level RESTful API Automation
-------------------------------------------

# SSH into device and check nxapi feature

ssh admin@sbx-nxos-mgmt.cisco.com
Admin_1234!
show feature | include nxapi
exit



5. FLY
--------------------------------
Interact with NX-OS using Python
--------------------------------

# Install Requests and run Python file

pip install requests
python get_sys_info.py


# Add this to the end of python get_sys_info.py
# Define USR_URL and USR_PAYLOAD variables

USR_URL = "https://sbx-nxos-mgmt.cisco.com/api/node/mo/sys/userext.json"
USR_PAYLOAD = {
    "aaaUser": {
        "attributes": {
            "pwdEncryptType": "0",
            "name": "temp_user", # <--- Add your unique username here
            "pwd": "temp_password",
            "expires": "yes",
            "expiration": "2030-07-31",
        }
    }
}

# Create a user with REST API's POST method
usr_create = session.post(USR_URL, json=USR_PAYLOAD)

# Check if creation was successful and if yes print such message
if usr_create.ok:
    print("USER WAS SUCCESSFULLY CREATED!")



# Run Python file again to add User

python get_sys_info.py


# SSH into device to make sure User was added

ssh admin@sbx-nxos-mgmt.cisco.com
Admin_1234!
terminal length 0
show user-account
exit


***If you care at Cisco Live, please deactivate and delete your virtual environment***

deactivate
rm -r <NAME YOU CHOSE>