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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:

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")

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