20221008-Ubuntu 20.04-LTS Install Guide - 《Cilium Docs》

ENV：
kubeadm init --kubernetes-version=v1.23.2 --image-repository registry.aliyuncs.com/google_containers --pod-network-cidr=10.244.0.0/16 --service-cidr=10.96.0.0/12 --skip-phases=addon/kube-proxy --ignore-preflight-errors=Swap
root@bpf1:~# uname -a
Linux bpf1 5.10.0-051000-generic #202012132330 SMP Sun Dec 13 23:33:36 UTC 2020 x86_64 x86_64 x86_64 GNU/Linux
root@bpf1:~# 
root@bpf1:~# kubectl get nodes -o wide 
NAME   STATUS     ROLES                  AGE   VERSION   INTERNAL-IP    EXTERNAL-IP   OS-IMAGE             KERNEL-VERSION          CONTAINER-RUNTIME
bpf1   Ready      control-plane,master   21h   v1.23.1   192.168.2.61   <none>        Ubuntu 20.04.3 LTS   5.10.0-051000-generic   docker://20.10.12
bpf2   Ready      <none>                 21h   v1.23.1   192.168.2.62   <none>        Ubuntu 20.04.3 LTS   5.10.0-051000-generic   docker://20.10.12
root@bpf1:~#

1.内核升级 ```properties 1.寻找需要内核:这里以[5.10]为例： https://kernel.ubuntu.com/~kernel-ppa/mainline/v5.10/amd64/ 并update系统： apt -y update apt -y upgrade

2.下载带有generic字符的deb文件。但是需要包含一个：_all.deb的文件。所以这里是4个文件： https://kernel.ubuntu.com/~kernel-ppa/mainline/v5.10/amd64/linux-headers-5.10.0-051000-generic_5.10.0-051000.202012132330_amd64.deb https://kernel.ubuntu.com/~kernel-ppa/mainline/v5.10/amd64/linux-headers-5.10.0-051000_5.10.0-051000.202012132330_all.deb https://kernel.ubuntu.com/~kernel-ppa/mainline/v5.10/amd64/linux-image-unsigned-5.10.0-051000-generic_5.10.0-051000.202012132330_amd64.deb https://kernel.ubuntu.com/~kernel-ppa/mainline/v5.10/amd64/linux-modules-5.10.0-051000-generic_5.10.0-051000.202012132330_amd64.deb

3.在对应主机上创建kernel目录，把上边的文件放到该目录下：

4.安装新的kernel： sudo dpkg -i *.deb

5.reboot

6.查看系统内核： root@bpf1:~# uname -a Linux bpf1 5.10.0-051000-generic #202012132330 SMP Sun Dec 13 23:33:36 UTC 2020 x86_64 x86_64 x86_64 GNU/Linux root@bpf1:~#


- [x] **2.Install Kubernetes 1.23.2**
```properties
0.安装必要utils：
apt -y update
apt upgrade
apt install openssh-server net-tools tcpdump bridge-utils tree wget git ethtool curl ab bind-utils 
sed -ri 's/.*swap.*/#&/' /etc/fstab
swapoff -a
apt -y install chrony
systemctl enable **
systemctl restart **
systemctl status **

1.修改docker配置：
root@bpf1:~# vi  /etc/docker/daemon.json 
{
  "registry-mirrors": ["https://cu2yw19m.mirror.aliyuncs.com"],
   "exec-opts": ["native.cgroupdriver=systemd"]
}

2.修改kubelet配置：
cat > /var/lib/kubelet/config.yaml <<EOF
apiVersion: kubelet.config.k8s.io/v1beta1
kind: KubeletConfiguration
cgroupDriver: systemd
EOF

3.重启服务：
systemctl daemon-reload
systemctl restart docker
systemctl restart kubelet
systemctl enable docker 
systemctl enable kubelet

4.kubadm init:
kubeadm init --kubernetes-version=v1.23.2 --image-repository registry.aliyuncs.com/google_containers --pod-network-cidr=10.244.0.0/16 --service-cidr=10.96.0.0/12 --skip-phases=addon/kube-proxy --ignore-preflight-errors=Swap

5.去掉污点
kubectl taint nodes --all node-role.kubernetes.io/master-

20221008-Ubuntu 20.04-LTS Install Guide - 图1