[Kubernetes] Installation
1 minute read
Setup Kubectl
brew install kubernetes-cli
# -----
# linux
# -----
curl -LO "https://dl.k8s.io/release/$(curl -L -s https://dl.k8s.io/release/stable.txt)/bin/linux/amd64/kubectl"
# validation
curl -LO "https://dl.k8s.io/release/$(curl -L -s https://dl.k8s.io/release/stable.txt)/bin/linux/amd64/kubectl.sha256"
echo "$(cat kubectl.sha256) kubectl" | sha256sum --check
sudo install -o root -g root -m 0755 kubectl /usr/local/bin/kubectl
# or when sudo is unavailable
# chmod +x kubectl
# mkdir -p ~/.local/bin
# mv ./kubectl ~/.local/bin/kubectl
# test
kubectl version --client
Setup MiniKube
#------
# macOS
#------
brew install minikube
# start docker
orb start
minikube start
# test
kubectl get po -A
# NAMESPACE NAME READY STATUS RESTARTS AGE
# kube-system coredns-66bc5c9577-j6wvh 1/1 Running 0 2m46s
# kube-system etcd-minikube 1/1 Running 0 2m52s
# kube-system kube-apiserver-minikube 1/1 Running 0 2m53s
# kube-system kube-controller-manager-minikube 1/1 Running 0 2m52s
# kube-system kube-proxy-7r2js 1/1 Running 0 2m46s
# kube-system kube-scheduler-minikube 1/1 Running 0 2m52s
# kube-system storage-provisioner 1/1 Running 1 (2m16s ago) 2m51s
# status
minikube status
# minikube
# type: Control Plane
# host: Running
# kubelet: Running
# apiserver: Running
# kubeconfig: Configured
# -----
# linux
# -----
# check virtualization
grep -E --color 'vmx|svm' /proc/cpuinfo
curl -LO https://github.com/kubernetes/minikube/releases/latest/download/minikube-linux-amd64
sudo install minikube-linux-amd64 /usr/local/bin/minikube && rm minikube-linux-amd64
minikube start
# test
kubectl get po -A
Deploy applications (Test)
kubectl create deployment hello-minikube --image=kicbase/echo-server:1.0
kubectl expose deployment hello-minikube --type=NodePort --port=8080
kubectl get services hello-minikube
minikube service hello-minikube
Managing Cluster
minikube pause
minikube unpause
minikube stop
# Change the default memory limit (requires a restart)
minikube config set memory 9001
# Browse the catalog of easily installed Kubernetes services
minikube addons list
# Delete all of the minikube clusters
minikube delete --all
Reference
