N.E.Py.H. - Network Engineer Python Helper

NEPYH is a python application with GUI which takes as input a database (in YAML format) and a template (in Jinja2 format) and merge them in order to generate configuration for network devices.

It can also be used for other things such as generate SecureCRT sessions files

NEPYH

Installation

Download the repo

git clone https://github.com/cyb3rw0lf/nepyh.git

Enter the downloaded folder

cd nepyh

Install dependencies

pip3 install -r requirements.txt

Upgrade

Enter the downloaded folder

cd nepyh

Pull the repo

git pull

Usage

See the sample folder for examples of input files.

• Create a database file in YAML format (validate on http://www.yamllint.com/)

• Create a template file in Jinja2 format

• Run the software

  • Linux python3 nepyh.py
  • macOS python3 nepyh.py
  • Windows py nepyh.py

• Select database, template, project name, output extension and press "Run"

  

YAML restrictions

The YAML file must start with a list of dictionaries.

The first dictionary will be used as name for the output files.

YAML example:

---
- hostname: R1
  loopback: 1.1.1.1
- hostname: R2
  loopback: 2.2.2.2

Output example:

R1.txt
R2.txt

Jinja2 Custom Filters

The Jinja2 template support the following custom filters for IP Address management

Filter	Usage	Description
ip	{{ my_ip|ip }}	return IP Address as string
ipadd	{{ my_ip|ipadd(5) }}	return IP Address + the amount of IP Added as string
network	{{ my_ip|network }}	return the Network Address as string
broadcast	{{ my_ip|broadcast }}	return the Wildcard Mask as string
bitmask	{{ my_ip|bitmask }}	return the Bit Mask / Prefix lenght as string
netmask	{{ my_ip|netmask }}	return Subnet Mask as string
wildmask	{{ my_ip|wildmask }}	return the Wildcard Mask as string

Example:

YAML file:

---
my_ipv4: 192.168.100.1/24
my_ipv6: 2001:db8::85a3:7334/64

Jinja2 file:

IPV4:
IP Address: {{ my_ipv4|ip }}
 Result: 192.168.100.1
Add 5 IP Address: {{ my_ipv4|ipadd(5) }}
 Result: 192.168.100.6
Network Address: {{ my_ipv4|network }}
 Result: 192.168.100.0
Broadcast Address: {{ my_ipv4|broadcast }}
 Result: 192.168.100.255
Bit Mask: {{ my_ipv4|bitmask }}
 Result: 24
Subnet Mask: {{ my_ipv4|netmask }}
 Result: 255.255.255.0
Wildcard Mask: {{ my_ipv4|wildmask }}
 Result: 0.0.0.255

IPV6:
IP Address: {{ my_ipv6|ip }}
 Result: 2001:db8::85a3:7334
Add 5 IP Address: {{ my_ipv6|ipadd(5) }}
 Result: 2001:db8::85a3:7339
Network Address: {{ my_ipv6|network }}
 Result: 2001:db8::
Broadcast Address: {{ my_ipv6|broadcast }}
 Result: 2001:db8::ffff:ffff:ffff:ffff
Bit Mask: {{ my_ipv6|netmask }}
 Result: 64
Subnet Mask: {{ my_ipv6|bitmask }}
 Result: ffff:ffff:ffff:ffff::
Wildcard Mask: {{ my_ipv6|wildmask }}
 Result: ::ffff:ffff:ffff:ffff