napalm_install_config error code 500 NXOS

[nazarko-es]

Hello, I encountered an error when i tried to use the module napalm_install_config for replace config on Cisco Nexus 9000, switch soft version is nxos-9.2.3. My playbook:

- name: DEPLOY CONFIGURATIONS WITH NAPALM
  napalm_install_config:
    hostname: "{{ ansible_host }}"
    username: 'username'
    password: 'password'
    dev_os: 'nxos'
    config_file: "{{ role_path }}/files/{{ device_item.name }}.conf"
    commit_changes: True
    replace_config: True

Error after start playbook:

The full traceback is:
  File "/tmp/ansible_napalm_install_config_payload_3ri_0y45/ansible_napalm_install_config_payload.zip/ansible/modules/napalm_install_config.py", line 298, in main
  File "/usr/local/lib/python3.6/site-packages/napalm/nxos/nxos.py", line 209, in compare_config
    diff = self._get_diff()
  File "/usr/local/lib/python3.6/site-packages/napalm/nxos/nxos.py", line 187, in _get_diff
    raw_text=True,
  File "/usr/local/lib/python3.6/site-packages/napalm/nxos/nxos.py", line 689, in _send_command
    return self.device.show(command, raw_text=raw_text)
  File "/usr/local/lib/python3.6/site-packages/nxapi_plumbing/device.py", line 61, in show
    result = self.show_list(commands, raw_text)
  File "/usr/local/lib/python3.6/site-packages/nxapi_plumbing/device.py", line 89, in show_list
    return self.api._nxapi_command(commands, method=cmd_method)
  File "/usr/local/lib/python3.6/site-packages/nxapi_plumbing/api_client.py", line 105, in _nxapi_command
    response = self._send_request(commands, method=method)
  File "/usr/local/lib/python3.6/site-packages/nxapi_plumbing/api_client.py", line 82, in _send_request
    raise NXAPIPostError(msg)

    "msg": "cannot diff config: Invalid status code returned on NX-API POST\ncommands: ['show diff rollback-patch file sot_file file candidate_config.txt']\nstatus_code: 500"

I did python script with napalm module to install config:

Traceback (most recent call last):
  File "test.py", line 6, in <module>
    print(device.compare_config())
  File "/home/esnazarko/napalm/nxos/nxos.py", line 209, in compare_config
    diff = self._get_diff()
  File "/home/esnazarko/napalm/nxos/nxos.py", line 187, in _get_diff
    raw_text=True,
  File "/home/esnazarko/napalm/nxos/nxos.py", line 689, in _send_command
    return self.device.show(command, raw_text=raw_text)
  File "/usr/local/lib/python3.6/site-packages/nxapi_plumbing/device.py", line 61, in show
    result = self.show_list(commands, raw_text)
  File "/usr/local/lib/python3.6/site-packages/nxapi_plumbing/device.py", line 89, in show_list
    return self.api._nxapi_command(commands, method=cmd_method)
  File "/usr/local/lib/python3.6/site-packages/nxapi_plumbing/api_client.py", line 105, in _nxapi_command
    response = self._send_request(commands, method=method)
  File "/usr/local/lib/python3.6/site-packages/nxapi_plumbing/api_client.py", line 82, in _send_request
    raise NXAPIPostError(msg)
nxapi_plumbing.errors.NXAPIPostError: Invalid status code returned on NX-API POST
commands: ['show diff rollback-patch file sot_file file candidate_config.txt']
status_code: 500

Also i tried to do checkpoint operation on cisco switch and extract "show diff rollback-patch file sot_file file candidate_config.txt", but occured same error. The Cisco switch reads the file with the command 'show file %filename%" - config is ok

[ktbyers]

Is your file here:

config_file: "{{ role_path }}/files/{{ device_item.name }}.conf"

An NX-OS checkpoint file?

Being able to do this:

The Cisco switch reads the file with the command 'show file %filename%" - config is ok

Does not actually indicate your file is a proper, full checkpoint file.

I would say the most likely cause is you don't have a valid checkpoint file.

[nazarko-es]

File on the path:

config_file: "{{ role_path }}/files/{{ device_item.name }}.conf"

Not NX-OS checkpoint. I generate this file with jinja template and asnible playbook. Can only use NX-OS checkpoint file? I want use NAPALM for zero-day provisioning, so I generated the configuration from jinja template

[nazarko-es]

Hello, do you have information about this situation?

[ktbyers]

Yes, it must be a NX-OS checkpoint file. You can generate from a Jinja2 template, but it must be 100% consistent with the requirements of a checkpoint file.

I would start with a valid checkpoint file and then reverse engineer the Jinja2 to make it consistent with that.

Regards, Kirk

[nazarko-es]

Hello, you can close this issue - after 100% consistent as checkpoin file plugin is work