IT-SDK-Kubernetes-YAML

Sammlung

• Installation-Tools: kubeadm
• SysReq: Master(3v CPU, 4G MeM, 5G Disk); Worker(1v CPU, 2G MeM, 5G Disk)

Linux-Admin

$ vi /etc/sudoers.d
# student ALL=(ALL) ALL
$ PATH=$PATH:/usr/sbin:/sbin
$ tar -xvf filename

Installation and Configuration

root root $ sudo -i
root $ root@lfs458-node-1a0a:~# apt-get update && apt-get upgrade -y
root $ apt-get install -y docker.io
root $ vim /etc/apt/sources.list.d/kubernetes.list
# deb http://apt.kubernetes.io/ kubernetes-xenial main
root $ curl -s https://packages.cloud.google.com/apt/doc/apt-key.gpg | apt-key add -
root $ apt-get install -y kubeadm=1.15.1-00 kubelet=1.15.1-00 kubectl=1.15.1-00
root $ wget https://tinyurl.com/yb4xturm -O rbac-kdd.yaml
root $ wget https://tinyurl.com/y8lvqc9g -O calico.yaml
root $ ip addr show
root $ vim kubeadm-config.yaml
--------------------------------------
apiVersion: kubeadm.k8s.io/v1beta2
kind: ClusterConfiguration
kubernetesVersion: 1.15.1 #<-- Use the word stable for newest version
controlPlaneEndpoint: "k8smaster:6443" #<-- Use the node alias not the IP
networking:
podSubnet: 192.168.0.0/16 #<-- Match the IP range from the Calico config file
--------------------------------------
root $ kubeadm init --config=kubeadm-config.yaml --upload-certs | tee kubeadm-init.out # Save output for future review
root $ exit

user $ mkdir -p $HOME/.kube
user $ sudo cp -i /etc/kubernetes/admin.conf $HOME/.kube/config
user $ sudo chown $(id -u):$(id -g) $HOME/.kube/config
user $ less .kube/config
user $ sudo cp /root/rbac-kdd.yaml .
user $ kubectl apply -f rbac-kdd.yaml
user $ sudo cp /root/calico.yaml .
user $ kubectl apply -f calico.yaml
user $ source <(kubectl completion bash)
user $ echo "source <(kubectl completion bash)" >> ~/.bashrc
user $ kubectl des<Tab> n<Tab><Tab> lfs458-<Tab>
user $ kubectl -n kube-s<Tab> g<Tab> po<Tab>
user $ sudo kubeadm config print init-defaults