Kubernetes

                                                             Kubernetes Installation

1.     apt update
2.     clear
3.     sudo apt-get install docker.io
4.     docker --version
5.     sudo systemctl status docker
6.     curl -s https://packages.cloud.google.com/apt/doc/apt-key.gpg | sudo apt-key add
7.     sudo apt-get install curl
8.     sudo apt-add-repository "deb http://apt.kubernetes.io/ kubernetes-xenial main"
9.     sudo apt-get install kubeadm kubelet kubectl
10.     kubeadm version

Links:

1:https://phoenixnap.com/kb/install-kubernetes-on-ubuntu

2:https://www.edureka.co/blog/install-kubernetes-on-ubuntu

=============K8-installation===============

===================K8-INSTALLATION===============

===ON MASTER===

 1  apt update

    2  clear

    3  apt full upgrade -y

    4  apt-get full upgrade -y

    5  apt-get install full upgrade -y

    6  apt -y full upgrade

    7  sudo apt full upgrade -y

    8  apt update

    9  apt -y full upgrade

   10  hostname K8-MASTER

   11  sudo su -

   12  apt update

   13  apt full-upgrade -y

   14  curl -fsSL https://test.docker.com -o test-docker.sh

   15  sudo sh test-docker.sh

   16  apt -y install curl apt-transport-https

   17  curl -s https://packages.cloud.google.com/apt/doc/apt-key.gpg | sudo apt-key add -

   18  echo "deb https://apt.kubernetes.io/ kubernetes-xenial main" | sudo tee /etc/apt/sources.list.d/kubernetes.list

   19  sudo apt update

   20  apt -y install kubelet kubeadm kubectl

   21  apt-mark hold kubelet kubeadm kubectl

   22  cd /etc/containerd/

   23  ls

   24  cat config.toml

   25  cd

   26  rm /etc/containerd/config.toml

   27  systemctl restart containerd

   28  kubeadm init

   29  export KUBECONFIG=/etc/kubernetes/admin.conf

   30  clear

   31  kubectl get nodes

   32  kubectl apply -f https://github.com/coreos/flannel/raw/master/Documentation/kube-flannel.yml

   33  kubectl get nodes

   34  vi pod_ex.yml

   35  kubectl create -f pod_ex.yml

   36  kubectl get nodes

   37  kubectl get pods

   38  vi pod_ex2.yml

   39  kubectl create -f  pod_ex2.yml

   40  kubectl get pods

   41  ls

   42  history

===========================ON SERVER-1===========

 1  pwd

    2  apt full upgrade -y

    3  apt full-upgrade -y

    4  curl -fsSL https://test.docker.com -o test-docker.sh

    5  sudo sh test-docker.sh

    6  apt -y install curl apt-transport-https

    7  curl -s https://packages.cloud.google.com/apt/doc/apt-key.gpg | sudo apt-key add -

    8  echo "deb https://apt.kubernetes.io/ kubernetes-xenial main" | sudo tee /etc/apt/sources.list.d/kubernetes.list

    9  sudo apt update

   10  apt -y install kubelet kubeadm kubectl

   11  apt-mark hold kubelet kubeadm kubectl

   12  rm /etc/containerd/config.toml

   13  systemctl restart containerd

   14  clear

   15  kubeadm join 172.31.50.34:6443 --token 85tnw6.sdhj2us92qqtmiyd         --discovery-token-ca-cert-hash sha256:f10a4b7e8a91039d02dab57e544230962769e66943be6ac2c5cd4a1579cf153b

   16  history

========================ON SERVER-2=================

1  apt update

    2  clear

    3  apt full-upgrade -y

    4  curl -fsSL https://test.docker.com -o test-docker.sh

    5  sudo sh test-docker.sh

    6  apt -y install curl apt-transport-https

    7  curl -s https://packages.cloud.google.com/apt/doc/apt-key.gpg | sudo apt-key add -

    8  echo "deb https://apt.kubernetes.io/ kubernetes-xenial main" | sudo tee /etc/apt/sources.list.d/kubernetes.list

    9  sudo apt update

   10  apt -y install kubelet kubeadm kubectl

   11  apt-mark hold kubelet kubeadm kubectl

   12  rm /etc/containerd/config.toml

   13  systemctl restart containerd

   14  clear

   15  kubeadm join 172.31.50.34:6443 --token 85tnw6.sdhj2us92qqtmiyd         --discovery-token-ca-cert-hash sha256:f10a4b7e8a91039d02dab57e544230962769e66943be6ac2c5cd4a1579cf153b

   16  history

Kubernetes deployment strategies