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切换用户
su
root 123456
wh 123456
创建namespace
kubectl create ns dev
查看命名空间
kubectl get ns
删除ns
kubectl delete ns dev
pod中运行nginx
kubectl run nginx --image=nginx:1.17.1 --port=80 --namespace=dev
查看dev的pod
kubectl get pod -n dev
kubectl get pod -n dev -o wide
kubectl describe pod nginx-64777cd554-lwjqr -n dev
删除pod
kubectl delete pod nginx-64777cd554-lwjqr -n dev
查看pod控制器
kubectl get deployment -n dev
删除控制器，然后才能删除pod
kubectl delete deployment nginx -n dev
查看label
kubectl get pod -n dev --show-labels
加标签
kubectl label pod nginx-69cf67d555-dzbft -n dev version=1.0
修改标签
kubectl label pod nginx-69cf67d555-dzbft -n dev version=1.1 --overwrite
带着deployment
kubectl run nginx --image=nginx:1.17.1 --port=81 --namespace=dev --replicas=3 --namespace=dev
1 查看linux版本
cat /etc/redhat-release -> CentOS Linux release 7.9.2009 (Core)
2 主机名解析
/etc/hosts 文件写入
192.168.159.129 master
3 时间同步
4 关闭iptables 和firewalld 服务
5禁用selinux
getenforce 看状态
vim /etc/selinux/config
6 禁用swap 分区
7 修改内核参数
vim /etc/sysctl.d/k8s.conf
net.bridge.bridge-nf-call-ip6tables = 1
net.bridge.bridge-nf-call-iptables = 1
net.ipv4.ip_forward=1
安装docker
wget https://mirrors.aliyun.com/docker-ce/linux/centos/docker-ce.repo -O /etc/yum.repos.d/docker-ce.repo
yum install --setopt=obsoletes=0 docker-ce-18.06.3.ce-3.el7 -y
kubeadm config images list
k8s.gcr.io/kube-apiserver:v1.17.17
k8s.gcr.io/kube-controller-manager:v1.17.17
k8s.gcr.io/kube-scheduler:v1.17.17
k8s.gcr.io/kube-proxy:v1.17.17
k8s.gcr.io/pause:3.1
k8s.gcr.io/etcd:3.4.3-0
k8s.gcr.io/coredns:1.6.5
docker pull registry.aliyuncs.com/google_containers/kube-apiserver:v1.17.17
docker pull registry.aliyuncs.com/google_containers/kube-controller-manager:v1.17.17
docker pull registry.aliyuncs.com/google_containers/kube-scheduler:v1.17.17
docker pull registry.aliyuncs.com/google_containers/kube-proxy:v1.17.17
docker pull registry.aliyuncs.com/google_containers/pause:3.1
docker pull registry.aliyuncs.com/google_containers/etcd:3.4.3-0
docker pull registry.aliyuncs.com/google_containers/coredns:1.6.5
docker tag registry.aliyuncs.com/google_containers/kube-apiserver:v1.17.17 k8s.gcr.io/kube-apiserver:v1.17.17
docker tag registry.aliyuncs.com/google_containers/kube-controller-manager:v1.17.17 k8s.gcr.io/kube-controller-manager:v1.17.17
docker tag registry.aliyuncs.com/google_containers/kube-scheduler:v1.17.17 k8s.gcr.io/kube-scheduler:v1.17.17
docker tag registry.aliyuncs.com/google_containers/kube-proxy:v1.17.17 k8s.gcr.io/kube-proxy:v1.17.17
docker tag registry.aliyuncs.com/google_containers/pause:3.1 k8s.gcr.io/pause:3.1
docker tag registry.aliyuncs.com/google_containers/etcd:3.4.3-0 k8s.gcr.io/etcd:3.4.3-0
docker tag registry.aliyuncs.com/google_containers/coredns:1.6.5 k8s.gcr.io/coredns:1.6.5
docker rmi registry.aliyuncs.com/google_containers/kube-apiserver:v1.17.17
docker rmi registry.aliyuncs.com/google_containers/kube-controller-manager:v1.17.17
docker rmi registry.aliyuncs.com/google_containers/kube-scheduler:v1.17.17
docker rmi registry.aliyuncs.com/google_containers/kube-proxy:v1.17.17
docker rmi registry.aliyuncs.com/google_containers/pause:3.1
docker rmi registry.aliyuncs.com/google_containers/etcd:3.4.3-0
docker rmi registry.aliyuncs.com/google_containers/coredns:1.6.5
虚拟机IP地址变
你可以在/etc/sysconfig/network-scripts/ifcfg-eth0 中
BOOTPROTO=static
ONBOOT=“yes”
IPADDR=192.168.159.103
GATEWAY=192.168.159.2
NETMASK=255.255.255.0
onboot=yes
kubeadm init
–apiserver-advertise-address=192.168.159.101
–image-repository registry.aliyuncs.com/google_containers
–kubernetes-version v1.17.4
–service-cidr=10.96.0.0/12
–pod-network-cidr=10.244.0.0/16
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