2019
KodeKloud - Container Network Interface (CNI) Explained in 7 Minutes of 6:22
    https://www.youtube.com/watch?v=l2BS_kuQxBA
KodeKloud - Network Namespaces Basics Explained in 15 Minutes of 15:31
    https://www.youtube.com/watch?v=j_UUnlVC2Ss