I am by no means a Python expert and when researching how to get my own multi threading working I see there are several ways depending on the task that you are performing.To summarise what I had read over and over, multi processing, spawns multiple processes for your CPU and is best for CPU bound […]
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I have 9000v in my GNS3 lab. These devices do no like to boot up when reloaded. They sit in a boot loader menu as no autoboot is found. As it’s only a lab this is ok. Just need to direct the switch to boot the correct image, which then boots the switch perfectly fine.
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I have used TextFSM in my Netmiko TACACS script in order to parse the show version and show inventory outputs to determine the type of Cisco OS the device is. The templates maybe found https://github.com/networktocode/ntc-templates/tree/master/ntc_templates/templatesThey were already installed when I installed Netmiko Using TextFSM is very simple. Netmiko takes in one extra parameter to use
Moving and running script from different machines can result in additional files that the script requires to break if the paths are not exactly the same. In my previous post I have discussed python-dotenv. The Python script is importing a file that is vital for the script to successfully execute. To ensure the file is
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This is a handy Python library to use when credentials are required to be used by scripts. Credentials shouldn’t ever be inside of scripts.Python-dotenv loads the environment variables from a .env file. The OS module is needed to use these environment variables. Install Create .env File Use .env in Script I have used this in
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Just a quick how to for setting up a virtual environment in Linux. This example is using CentOS. Install Python Virtual Environments Create Virtual Environment Can specify Python version for the virtual env Activate the New Virtual Environment Check the Version Check Python Libraries This will be empty to being with. Install a Library Recheck
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Just a quick how to for taking a flask app and putting it inside a docker container Creating the Docker File The Docker file is created in a parent directory of the flask app. This is where the Python version, the libraries used and the commands to run the app. Minor Changes to app.py We
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This is showing how TACACS in a GNS3 lab can work. It is part of the Netmiko TACACS Project. Let’s get to it… R2 will have TACACS config applied to the OLD_TACACS server. SSH login will come from the Centos Automation server R2 TACACS Config TACACS Server (OLD_TACACS) For the TACACS server I am using
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Adding an Interface in GNS3 I needed a new VM in my lab as I was having issues with my older one. There are two NICs on the VM, one for access to the internet via my home network and another NIC to connect to the actual lab. Ensure that the second NIC is configured
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Problems I needed to update Python in one of my forgotten labs from 3.6 as Netmiko required 3.7 or higher. So a quick Google and what I thought would be a straightforward install.Turns out it wasn’t. CentOS 7 has a bug that complains about the SSL modules in Python not being available. The fix to
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