def run_commands(a_device):
"""
Function using Netmiko to connect to each of the devices. Execute
commands on each device from commands.txt
"""
# Network device definition for Netmiko
ios_device = {
'device_type': 'cisco_ios',
'ip': a_device,
'username': username,
'password': password,
}
# Connect to device, run commands, output to file
try:
current_time = datetime.now().strftime("%y_%m_%d_%H%M")
print ('Connecting to device ' + a_device)
remote_conn = ConnectHandler(**ios_device)
# Grab the hostname of the device, so it can be used as a filename
hostname = remote_conn.send_command("show run | i hostname")
hostname = hostname[9:]
#open file to write command output
file = open(hostname + " - " + a_device + " " + current_time + '.txt', 'w')
# Print output to console screen
print('-------------- Running script on ' + a_device + ' - ' + hostname + ' ------------------')
file.write('======== ' + a_device + ' @ ' + hostname + ' ========')
file.write("\n")
# run and output the commands in commands.txt
output=remote_conn.send_config_set(commands_list)
file.write(output)
# Close the file
file.close()
# Cleanly disconnect SSH session
remote_conn.disconnect()
except (AuthenticationException):
print ('Authentication Failure: ' + a_device)
Authfailure.write('\n' + a_device)
except (NetMikoTimeoutException):
print ('\n' + 'Timeout to device: ' + a_device)
Timeouts.write('\n' + a_device)
except (SSHException):
print ('SSH might not be enabled: ' + a_device)
SSHException.write('\n' + a_device)
except (EOFError):
print ('\n' + 'End of attempting device: ' + a_device)
EOFError.write('\n' + a_device)
except unknown_error:
print ('Some other error: ' + str(unknown_error))
outF.write("################\n")
outF.write("################\n")
print(host + " Completed")
operationLOG = open("OperationLog.txt", "a")
operationLOG.write("Switch " + host + " Completed \n")
device.send_command("write memory\n")
time.sleep(2)
device.disconnect()
else:
print("NOTHING WAS DONE to host" + host)
except (AuthenticationException):
print('Authentication Failure: ' + host)
Authfailure.write('\n' + host)
continue
except (NetMikoTimeoutException):
print('\n' + 'Timeout to device: ' + host)
Timeouts.write('\n' + host)
continue
except (SSHException):
print('SSH might not be enabled: ' + host)
SSHException.write('\n' + host)
continue
except (EOFError):
print('\n' + 'End of attempting device: ' + host)
EOFError.write('\n' + host)
continue
except unknown_error:
print('Some other error: ' + str(unknown_error))
print(f'Processed {line_count} lines.')
except:
print("\nBroken")
