Kubernetes Network
As many of you know kubernetes architecture is composed by two main component Master node and Worker node, when you start your first kubernetes installation you need to setup these components but after you finish to run your commands you realize your cluster isn’t ready to run pod because you need to install your network plugin! Yes, kubernetes doesn’t provide any network solution but use plugin instead, common plugins are: • Kubenet • Container Network Interface, standard under CNCF that aim to provide a common interface between various networking solutions and container runtimes A network plugin by default has some requirements: • All pod can communicate with each other across nodes • All nodes can communicate with all pods • No Nat is required So basically kubernetes assign a virtual IP address to setup routing and network, the things we need to keep in mind in kubernetes the lowest compute unit is not the container but the pod ( a group of container ) on net...