loading credentials error with metric-collector container

[trif666]

Hello,

First, congrats to you and your job and thanks to share this project with us.

I'm trying to launch the stack but the metric-collector container displays an error when it attempts to check the credentials configuration file :

2021-03-10 09:57:15,534 collector: INFO: Sending Datapoint to: http://telegraf:8186/write
2021-03-10 09:57:15,534 scheduler: INFO: Worker Worker-120sec-1 took 0.0012273788452148438 seconds to run
2021-03-10 09:59:15,572 scheduler: INFO: Worker-120sec-1: Starting collection for 1 hosts
2021-03-10 09:59:15,573 scheduler: INFO: Worker-120sec-1: Collector Thread-1 scheduled with following hosts: ['switch-1']
2021-03-10 09:59:15,573 collector: INFO: Collector starting for: switch-1
2021-03-10 09:59:15,573 netconf_collector: INFO: Connecting to host: switch-1
Exception in thread Thread-8:
Traceback (most recent call last):
File "/usr/local/lib/python3.7/threading.py", line 926, in _bootstrap_inner
self.run()
File "/usr/local/lib/python3.7/threading.py", line 870, in run
self._target(*self._args, **self._kwargs)
File "/source/lib/metric_collector/collector.py", line 57, in collect
dev.connect()
File "/source/lib/metric_collector/netconf_collector.py", line 75, in connect
if self.__credential['method'] in "key":
TypeError: 'NoneType' object is not subscriptable
2021-03-10 09:59:15,577 collector: INFO: Sending Datapoint to: http://telegraf:8186/write
2021-03-10 09:59:15,577 scheduler: INFO: Worker Worker-120sec-1 took 0.0009467601776123047 seconds to run

For authentication, I use SSH key method
Here is my credentials (lab-0-credentials.yaml) file :

lab_credentials:
username: user
method: key
key_file: keys/private-key
tags: juniper

"private-key" file is stored in quickstart/keys/

Can you confirm it is the right place to store it ?

Because of a proxy, I have to build first the metric-collector container :
$ CREDENTIALS=lab-0-credentials.yaml HOSTS=lab-0-hosts.yaml docker-compose build --build-arg http_proxy=http://proxy1:80/ --build-arg https_proxy=http://proxy1:80/

then I can launch the stack:
$ CREDENTIALS=lab-0-credentials.yaml HOSTS=lab-0-hosts.yaml docker-compose up

Error displays seems to be related to the non-existing method value but hosts information file is well recognized since device hostname is configured for netconf_collector.

Can you tell me if I do something wrong ?

Thanks again !

[eusmark]

I too am having the exact same problem on a brand new Ubuntu 20.04 LTS system

1. i had to update the setup.py file as pip20 broke the initial deployment

ubuntu@py-dash:~/py-metric-collector$ diff setup.py setup.py.orig
15,19c15
< requirements_data = list(requirements_data)
< try:
<     requirements = [str(ir.req) for ir in requirements_data]
< except:
<     requirements = [str(ir.requirement) for ir in requirements_data]
---
> requirements = [str(package.req) for package in requirements_data]

2. I get the same NoneType error on 'method' key lookup as trif666 above. i'm guessing python 3.8 has changed.