在线云原生边缘计算KubeEdge安装配置(一)

第一安装K8S集群（这里是单节点集群）

1. 基础优化

#添加hosts：
cat >> /etc/hosts << EOF
114.115.220.147  cloudcore
101.44.64.2    edgecore01
EOF

hostnamectl set-hostname cloudcorer  && bash
#关闭防火墙：
systemctl stop firewalld
systemctl disable firewalld
#关闭selinux：
sed -i 's/enforcing/disabled/' /etc/selinux/config # 永久
setenforce 0 # 临时
#关闭swap：
swapoff -a # 临时
sed -i 's/.*swap.*/#&/' /etc/fstab # 永久

cat > /etc/sysctl.d/k8s.conf << EOF
net.bridge.bridge-nf-call-ip6tables = 1
net.bridge.bridge-nf-call-iptables = 1
net.bridge.bridge-nf-call-iptables=1
net.bridge.bridge-nf-call-ip6tables=1
net.ipv4.ip_forward=1
net.ipv4.tcp_tw_recycle=0
vm.swappiness=0
vm.overcommit_memory=1
vm.panic_on_oom=0
fs.inotify.max_user_instances=8192
fs.inotify.max_user_watches=1048576
fs.file-max=52706963
fs.nr_open=52706963
net.ipv6.conf.all.disable_ipv6=1
net.netfilter.nf_conntrack_max=2310720         
EOF
sysctl --system

#时间同步：
yum install ntpdate -y
ntpdate time.windows.com

2. docker安装

#（1）安装Docker
yum -y install epel-release wget
wget https://mirrors.aliyun.com/docker-ce/linux/centos/docker-ce.repo -O /etc/yum.repos.d/docker-ce.repo
#yum -y install docker-ce-18.06.3.ce-3.el7 #安装docker最新版 后面安装kubernetes的v1.20.5
yum -y install docker-ce  #安装docker最新版
systemctl enable docker && systemctl start docker && systemctl status docker
docker --version
#（2）添加阿里云YUM 软件源
#设置仓库地址
cat > /etc/docker/daemon.json << EOF
{
  "registry-mirrors": ["https://qj799ren.mirror.aliyuncs.com"],
  "exec-opts": ["native.cgroupdriver=systemd"],
  "log-driver": "json-file",
  "log-opts": {
    "max-size": "100m"
  },
  "storage-driver": "overlay2"
}
EOF

systemctl restart docker &&  systemctl status docker
docker --version

3. kubeadm kubectl kubelet安装

#添加yum 源
cat > /etc/yum.repos.d/kubernetes.repo << EOF
[kubernetes]
name=Kubernetes
baseurl=https://mirrors.aliyun.com/kubernetes/yum/repos/kubernetes-el7-x86_64
enabled=1
gpgcheck=0
repo_gpgcheck=0
gpgkey=https://mirrors.aliyun.com/kubernetes/yum/doc/yum-key.gpg
https://mirrors.aliyun.com/kubernetes/yum/doc/rpm-package-key.gpg
EOF

#安装kubeadm，kubelet 和kubectl
yum clean all && yum makecache -y
# yum list kubectl --showduplicates | sort -r #列出kubectl可用的版本


yum -y install kubelet-1.22.2-0 kubeadm-1.22.2-0 kubectl-1.22.2-0
systemctl enable kubelet

4. 部署Kubernetes k8s-master

kubeadm init --apiserver-advertise-address=114.115.220.147  --image-repository registry.aliyuncs.com/google_containers --kubernetes-version v1.22.2 --service-cidr=10.96.0.0/12  --pod-network-cidr=10.244.0.0/16 --ignore-preflight-errors=all

mkdir -p $HOME/.kube
sudo cp -i /etc/kubernetes/admin.conf $HOME/.kube/config
sudo chown $(id -u):$(id -g) $HOME/.kube/config

5. 安装Pod 网络插件（CNI）

kubectl apply -f  calico.yaml  #这个文件单独发你了

6. 取消污点

kubectl taint nodes --all node-role.kubernetes.io/control-plane- #执行这句就行，就是取消污点
kubectl taint nodes --all node-role.kubernetes.io/master-

kubectl get no -o yaml | grep taint -A 5  #再次查看，无显示，说明污点去除成功

7.补全命令

rpm -aq |grep completion  
yum -y install bash-completion  #安装补全命令的包
kubectl completion bash
source /usr/share/bash-completion/bash_completion
kubectl completion bash >/etc/profile.d/kubectl.sh
source /etc/profile.d/kubectl.sh
cat >> /root/.bashrc << EOF
source /etc/profile.d/kubectl.sh
EOF

8. 测试kubernetes 集群

kubectl create deployment nginx --image=nginx
kubectl expose deployment nginx --port=80 --type=NodePort
kubectl get pod,svc -o wide
# 浏览器利用IP:端口访问

第二. kubeedge安装

请继续从2步开始安装执行就行