Kubernetes Cookbook - Second Edition

Network configurations for containers

After the master of the cluster is ready to handle jobs and the services are running, for the purpose of making containers accessible to each other through networking, we need to set up the network for container communication. It is even more important initially while building up a Kubernetes cluster with kubeadm, since the master daemons are all running as containers. kubeadm supports the CNI (https://github.com/containernetworking/cni). We are going to attach the CNI via a Kubernetes network add-on.

There are many third-party CNI solutions that supply secured and reliable container network environments. Calico (https://www.projectcalico.org), one CNI provide stable container networking. Calico is light ...