What is POD? A point of delivery, or PoD, is "a module of network, compute, storage, and application components that work together to deliver networking services. An overlay network is a computer network that is built on top of another network. An overlay is a virtual network that is built on top of underlying network infrastructure. The purpose is to implement … Continue reading Pod Network

Add repo to pull required packages in all nodes cat << /etc/yum.repos.d/kubernetes.repo [kubernetes] name=Kubernetes baseurl=https://packages.cloud.google.com/yum/repos/kubernetes-el7-x86_64 enabled=1 gpgcheck=1 repo_gpgcheck=1 gpgkey=https://packages.cloud.google.com/yum/doc/yum-key.gpg https://packages.cloud.google.com/yum/doc/rpm-package-key.gpg EOF yum install kubeadm kubelet kubectl -y Installed: kubeadm.x86_64 0:1.13.4-0 kubectl.x86_64 0:1.13.4-0 kubelet.x86_64 0:1.13.4-0 Dependency Installed: conntrack-tools.x86_64 0:1.4.4-4.el7 cri-tools.x86_64 0:1.12.0-0 kubernetes-cni.x86_64 0:0.6.0-0 libnetfilter_cthelper.x86_64 0:1.0.0-9.el7 libnetfilter_cttimeout.x86_64 0:1.0.0-6.el7 libnetfilter_queue.x86_64 0:1.0.2-2.el7_2 socat.x86_64 0:1.7.3.2-2.el7 swapoff -a yum install docker … Continue reading Install kubernetes with kubeadm

Download required version of Helm wget https://storage.googleapis.com/kubernetes-helm/helm-v2.13.0-linux-amd64.tar.gz tar -zxvf helm-v2.13.0-linux-amd64.tar.gz mv linux-amd64/helm /usr/local/bin/helm [root@remoteuser ~]# helm The Kubernetes package manager To begin working with Helm, run the 'helm init' command: $ helm init This will install Tiller to your running Kubernetes cluster. It will also set up any necessary local configuration. Common actions from this … Continue reading Installing and working with helm

Replication of controllers Auto Scaling Load Balancing Rolling Update Logging Across components Monitoring Health Checks ServiceDiscovery Authentication.......   Kubernetes Architecture     Kube-Apiserver: The Kubernetes API server validates and configures data for the api objects which include pods, services, replicationcontrollers, and others. The API Server services REST operations and provides the frontend to the cluster’s … Continue reading What Kubernetes can resolve