netmiko_file_transfer failing on Cisco 4331 router #70
Comments
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If I do a file_transfer with netmiko directly it works: from netmiko import ConnectHandler, file_transfer
device = {
"device_type": "cisco_ios",
"host": "192.168.254.40",
"username": "admin",
"password": "admin",
"fast_cli": True, # disable fast cli
"conn_timeout": 20,
"auth_timeout": 20,
"session_log": "scp-session.log",
}
src_file = "testfile.txt" # file on local machine
dest_file = "testfile.txt" # file to put on remote device (usually identical to src_file)
with ConnectHandler(**device) as ssh_conn:
print(f"Connected to {ssh_conn.host}:{ssh_conn.port}")
print(
f"Transferring {src_file} to flash:{dest_file} for {ssh_conn.host}, please wait..."
)
scp_transfer = file_transfer(
ssh_conn,
source_file=src_file,
dest_file=dest_file,
file_system="flash:",
overwrite_file=True,
verify_file=True,
)
print(scp_transfer) |
|
I tried to manually replicate some of the logic from netmiko_file_transfer so I could compare the task object to make sure the inputs were the same. I modified the net_connect object to make all the attributes match the known good file transfer that used netmiko directly. Here's the modifications I made to ensure the task object and file_transfer arguments matched: def my_file_transfer(task, source_file, dest_file, direction, file_system, overwrite_file, verify_file, socket_timeout, disable_md5, progress):
net_connect = task.host.get_connection(CONNECTION_NAME, task.nornir.config)
net_connect.ssh_config_file = None
net_connect.secret = ""
net_connect.fast_cli = True
net_connect.global_delay_factor = 0.1
net_connect.conn_timeout = 10
print("******************* DEBUG *********************")
print(net_connect.__dict__)
print("***********************************************")
return file_transfer(
net_connect,
source_file=source_file,
dest_file=dest_file,
file_system="bootflash:",
overwrite_file=True,
verify_file=True,
socket_timeout=30
)
result = nornir_client.run(
task = my_file_transfer,
source_file = self.file_name,
dest_file = self.file_name,
direction = "put",
file_system="bootflash:",
overwrite_file=True,
verify_file=False,
socket_timeout=30,
disable_md5=True,
progress=progress_bar,
)For comparison, here's what the debugs look like from the working job that uses netmiko directly: |
|
Well, I'm not sure what happened, I re-factored my code and in so doing re-wrote the file transfer from scratch slightly modified, and it's working now: image_transfer = self.nornir_client.run(
task = netmiko_file_transfer,
source_file = str(self.target_image),
dest_file = str(self.target_image),
)The only difference really is the source and destination file variables are just the file name, not a complete path like I was using before, and I removed the direction argument. I'll leave it open in case you want to investigate the previous state but if not go ahead and close. Thanks. |
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Not sure if I'm doing something wrong or if this is a bug:
I'm getting an error trying to do a netmiko_file_transfer to a Cisco 4331 running IOS-XE 3.16.05.s.
Tested on python 3.9.18 & 3.11.7.
Using cisco_ios device type.
Here are the python package versions:
netmiko==4.3.0
netutils==1.6.0
nornir==3.4.1
nornir-jinja2==0.2.0
nornir-napalm==0.4.0
nornir-nautobot==3.0.0
nornir-netmiko==1.0.1
nornir-utils==0.2.0
paramiko==3.3.1
scp==0.14.5
I'm using the Nornir Nautobot plugin in a Nautobot job. The job looks like this in part:
When I run the job (python logging enabled for "paramiko" & "nornir_netmiko") my docker compose logs show:
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