Implement network traffic disruptions

[pablochacin]

Provide a mechanism for disturbing the incoming/outgoing network traffic for a target (pod, node)

• Package delays to simulate network congestion or the effect of different network capacities
• Package drop to simulate network interruptions

[pablochacin]

The basic functionalities are provided by the traffic control (tc) command.

tc-go is a pure go implementation of tc capabilities using Netlink.