pyvyos Documentation

pyvyos is a Python library for interacting with VyOS devices via their API. This documentation provides a guide on how to use pyvyos to manage your VyOS devices programmatically.

You can find the complete pyvyos documentation on Read the Docs.

Installation

You can install pyvyos using pip https://pypi.org/project/pyvyos/:

pip install pyvyos

Getting Started

Importing and Disabling Warnings for verify=False

Before using pyvyos, it's a good practice to disable urllib3 warnings and import the required modules, IF you use verify=False:

import urllib3
urllib3.disable_warnings()

Using API Response Class

pyvyos uses a custom ApiResponse data class to handle API responses:

@dataclass
class ApiResponse:
    status: int
    request: dict
    result: dict
    error: str

Initializing a VyDevice Object

Configuring Your Environment for VyDevice

1. Rename the file .env.example to .env.
2. Open the .env file in a text editor.
3. Replace the placeholder values with your VyOS device credentials:

• VYDEVICE_HOSTNAME: Your device's hostname or IP address.
• VYDEVICE_APIKEY: Your API key for authentication.
• VYDEVICE_PORT: The port number for the API. Default 443
• VYDEVICE_PROTOCOL: The protocol (e.g., http or https). Default https
• VYDEVICE_VERIFY_SSL: Set to True or False for SSL verification.

# Retrieve VyOS device connection details from environment variables and configure VyDevice
from dotenv import load_dotenv
load_dotenv()

hostname = os.getenv('VYDEVICE_HOSTNAME')
apikey = os.getenv('VYDEVICE_APIKEY')
port = os.getenv('VYDEVICE_PORT')
protocol = os.getenv('VYDEVICE_PROTOCOL')
verify_ssl = os.getenv('VYDEVICE_VERIFY_SSL')

# Convert the verify_ssl value to a boolean
verify = verify_ssl.lower() == "true" if verify_ssl else True 

device = VyDevice(hostname=hostname, apikey=apikey, port=port, protocol=protocol, verify=verify)

Using pyvyos

configure, then set

The configure_set method sets a VyOS configuration:

# Set a VyOS configuration
response = device.configure_set(path=["interfaces", "ethernet", "eth0", "address", "192.168.1.1/24"])

# Check for errors and print the result
if not response.error:
    print(response.result)

configure, then show a single OBJECT value

# Retrieve VyOS return values for a specific interface
response = device.retrieve_return_values(path=["interfaces", "dummy", "dum1", "address"])
print(response.result)

configure, then show OBJECT

The retrieve_show_config method retrieves the VyOS configuration:

# Retrieve the VyOS configuration
response = device.retrieve_show_config(path=[])

# Check for errors and print the result
if not response.error:
    print(response.result)

configure, then delete OBJECT

# Delete a VyOS interface configuration
response = device.configure_delete(path=["interfaces", "dummy", "dum1"])

configure, then save

# Save VyOS configuration without specifying a file (default location)
response = device.config_file_save()

configure, then save FILE

# Save VyOS configuration to a specific file
response = device.config_file_save(file="/config/test300.config")

show OBJECT

# Show VyOS system image information
response = device.show(path=["system", "image"])
print(response.result)

generate OBJECT

# Generate an SSH key with a random string in the name
randstring = ''.join(random.choice(string.ascii_letters + string.digits) for _ in range(20))
keyrand =  f'/tmp/key_{randstring}'
response = device.generate(path=["ssh", "client-key", keyrand])

reset OBJECT

The reset method allows you to run a reset command:

# Execute the reset command
response = device.reset(path=["conntrack-sync", "internal-cache"])

# Check for errors and print the result
if not response.error:
    print(response.result)

configure, then load FILE

# Load VyOS configuration from a specific file
response = device.config_file_load(file="/config/test300.config")