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configure_network.py
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configure_network.py
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import yaml
from jinja2 import Template
import os
from jsonrpclib import Server
import time
username = "arista"
password = "arista"
# Devices inventory
inventory_f=open('inventory.yml', 'r')
inventory_s=inventory_f.read()
inventory_f.close()
inventory=yaml.load(inventory_s, Loader=yaml.FullLoader)
# Printing some details regarding the devices
for device in inventory:
print ('-'*60)
print ('Printing some details regarding the device ' + device)
ip = inventory[device]['ip']
url = "http://" + username + ":" + password + "@" + ip + "/command-api"
switch = Server(url)
result=switch.runCmds(version=1,cmds=["sh ver"], format='json', autoComplete=True)
print('model is ' + result[0]['modelName'])
print('version is ' + result[0]['version'])
# Template to generate devices configuration
f=open('templates/config.j2')
s=f.read()
f.close()
eos_template=Template(s)
# Directory to save the generated devices configuration
cwd = os.getcwd()
config_directory = os.path.dirname(cwd + "/config/")
if not os.path.exists(config_directory):
os.makedirs(config_directory)
# Genrating the devices configuration
for device in inventory:
print ('-'*60)
print ('Generating the configuration for device ' + device)
f=open(inventory[device]['vars'])
s=f.read()
f.close()
vars = yaml.load(s, Loader=yaml.FullLoader)
conf = open(config_directory + '/' + device + '.txt','w')
conf.write(eos_template.render(vars))
conf.close()
print ('The generated device configuration is now saved in the config directory')
# configuring the devices
for device in inventory:
print ('-'*60)
print ('configuring the device ' + device)
ip = inventory[device]['ip']
url = "http://" + username + ":" + password + "@" + ip + "/command-api"
switch = Server(url)
f = open(config_directory + '/' + device + '.txt','r')
conf_list = f.read().splitlines()
f.close()
conf = switch.runCmds(version=1,cmds=conf_list, autoComplete=True)
print ('Done')