junoscfg 0.5.3

Convert Junos configurations between XML, JSON, structured, and display set formats

Junoscfg (Python)

Convert and validate Junos configurations between JSON, structured, YAML, and display set formats.

Originally inspired by the Ruby Junoser gem, now a comprehensive Junos configuration toolkit.

Installation

pip install junoscfg

Usage

CLI

# Convert structured config to set commands
junoscfg -i structured -e set config.conf

# Convert JSON to set commands
junoscfg -i json -e set config.json

# Convert to structured format
junoscfg -e structured config.set

# Read from stdin
echo '{"configuration":{"system":{"host-name":"test"}}}' | junoscfg -i json -e set

# Transform YAML for Ansible (literal extraction)
junoscfg edityaml ansibilize -p "addr:interfaces.interface[*].name" config.yaml

# Offset mode for multi-router deployments (generates ipmath expressions)
junoscfg edityaml ansibilize -P "addr:interfaces.interface[*].unit[*].family.*.address[*].name" config.yaml

# Anonymize all sensitive data
junoscfg -i json -e set --anonymize-all config.json

# Anonymize with regex patterns (e.g. match site codes)
junoscfg -e set --anonymize-sensitive-patterns 'LAX\d+' config.json

# Retrieve XSD dump and generate schema artifacts
echo "<rpc> <get-xnm-information> <type>xml-schema</type> <namespace>junos-configuration</namespace> </get-xnm-information> </rpc>" | ssh -Csp 830 router.example.com netconf > netconf.xml
junoscfg schema generate netconf.xml -o ./artifacts/

Python API

from junoscfg import convert_config, Format, validate_json

# Convert between any format pair
result = convert_config(
    '{"configuration":{"system":{"host-name":"test"}}}',
    from_format=Format.JSON, to_format=Format.SET,
)

# Validate a JSON config
result = validate_json('{"configuration":{"system":{"host-name":"test"}}}')
print(result.valid)  # True

# Convert with strict field-level validation (raises on invalid enum/pattern/IP values)
result = convert_config(source, from_format=Format.JSON, to_format=Format.SET, strict=True)

# Anonymize a configuration
from junoscfg.anonymize import anonymize
from junoscfg.anonymize.config import AnonymizeConfig

config = AnonymizeConfig(ips=True, passwords=True, salt="my-salt")
config.expand_all()
ir = {"configuration": {"system": {"host-name": "router1", "name-server": [{"name": "8.8.8.8"}]}}}
result = anonymize(ir, config)

Documentation

For full documentation, install the docs dependencies and run:

uv sync --group docs
uv run mkdocs serve

Then open http://127.0.0.1:8000.

Key sections:

• Getting Started — Installation and usage examples
• User Guide — Conversion, validation, and CLI reference
• API Reference — Auto-generated Python API docs
• Architecture — Design decisions and schema internals