A new Network Automation Docker appliance is now available in the GNS3 marketplace. It solves an issue a lot of people have been asking about - how to keep Python installed when you restart GNS3. This container has Python, Netmiko, pyntc and Ansible preinstalled.
Get $200 worth of network software for free here: https://goo.gl/613TUF
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https://www.youtube.com/watch?v=_iuz6x2vBSw