部署k8s 1.22.2 集群 && Euler部署k8s 1

2021-10-13  本文已影响0人  carvin

部署k8s 1.22.2 集群

Euler部署k8s 1.22.2 集群

一、基础环境

主机名 IP地址 角色 系统
master 192.168.10.20 master Euler-21.03
node1 192.168.10.21 node1 Euler-21.03
node2 192.168.10.22 node2 Euler-21.03

二、配置基础环境。

• 以下命令在三台主机上均需运行

1、添加yum源

vim /etc/yum.repos.d/docker-ce.repo

[docker-ce-stable]
name=Docker CE Stable - x86_64
baseurl=https://repo.huaweicloud.com/docker-ce/linux/centos/8/x86_64/stable
enabled=1
gpgcheck=1
gpgkey=https://repo.huaweicloud.com/docker-ce/linux/centos/gpg

[docker-ce-stable-debuginfo]
name=Docker CE Stable - Debuginfo x86_64
baseurl=https://repo.huaweicloud.com/docker-ce/linux/centos/8/debug-x86_64/stable
enabled=0
gpgcheck=1
gpgkey=https://repo.huaweicloud.com/docker-ce/linux/centos/gpg

[docker-ce-stable-source]
name=Docker CE Stable - Sources
baseurl=https://repo.huaweicloud.com/docker-ce/linux/centos/8/source/stable
enabled=0
gpgcheck=1
gpgkey=https://repo.huaweicloud.com/docker-ce/linux/centos/gpg

[docker-ce-test]
name=Docker CE Test - x86_64
baseurl=https://repo.huaweicloud.com/docker-ce/linux/centos/8/x86_64/test
enabled=0
gpgcheck=1
gpgkey=https://repo.huaweicloud.com/docker-ce/linux/centos/gpg

[docker-ce-test-debuginfo]
name=Docker CE Test - Debuginfo x86_64
baseurl=https://repo.huaweicloud.com/docker-ce/linux/centos/8/debug-x86_64/test
enabled=0
gpgcheck=1
gpgkey=https://repo.huaweicloud.com/docker-ce/linux/centos/gpg

[docker-ce-test-source]
name=Docker CE Test - Sources
baseurl=https://repo.huaweicloud.com/docker-ce/linux/centos/8/source/test
enabled=0
gpgcheck=1
gpgkey=https://repo.huaweicloud.com/docker-ce/linux/centos/gpg

[docker-ce-nightly]
name=Docker CE Nightly - x86_64
baseurl=https://repo.huaweicloud.com/docker-ce/linux/centos/8/x86_64/nightly
enabled=0
gpgcheck=1
gpgkey=https://repo.huaweicloud.com/docker-ce/linux/centos/gpg

[docker-ce-nightly-debuginfo]
name=Docker CE Nightly - Debuginfo x86_64
baseurl=https://repo.huaweicloud.com/docker-ce/linux/centos/8/debug-x86_64/nightly
enabled=0
gpgcheck=1
gpgkey=https://repo.huaweicloud.com/docker-ce/linux/centos/gpg

[docker-ce-nightly-source]
name=Docker CE Nightly - Sources
baseurl=https://repo.huaweicloud.com/docker-ce/linux/centos/8/source/nightly
enabled=0
gpgcheck=1
gpgkey=https://repo.huaweicloud.com/docker-ce/linux/centos/gpg

2、安装相关依赖包

yum install -y vim bash-completion lrzsz conntrack ipvsadm ipset jq sysstat curl iptables

3、关闭防火墙

systemctl stop firewalld && systemctl disable firewalld
iptables -F && iptables -X && iptables -F -t nat && iptables -X -t nat && iptables -P FORWARD ACCEPT

4、关闭SELinux

setenforce 0
sed -i "s/SELINUX=enforcing/SELINUX=disabled/g" /etc/selinux/config

5、关闭sawp分区

swapoff -a
sed -i '/ swap / s/^\(.*\)$/#\1/g' /etc/fstab

6、加载内核模块

cat > /etc/sysconfig/modules/ipvs.modules <<EOF
#!/bin/bash
modprobe -- ip_vs
modprobe -- ip_vs_rr
modprobe -- ip_vs_wrr
modprobe -- ip_vs_sh
modprobe -- nf_conntrack_ipv4
modprobe -- br_netfilter
EOF
chmod 755 /etc/sysconfig/modules/ipvs.modules && bash /etc/sysconfig/modules/ipvs.modules

7、设置内核参数

cat << EOF | tee /etc/sysctl.d/k8s.conf
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_watches=89100
fs.file-max=52706963
fs.nr_open=52706963
net.ipv6.conf.all.disable_ipv6=1
net.netfilter.nf_conntrack_max=2310720
EOF

sysctl -p /etc/sysctl.d/k8s.conf

net.bridge.bridge-nf-call-iptables = 1
net.bridge.bridge-nf-call-ip6tables = 1
net.ipv4.ip_forward = 1
sysctl: cannot stat /proc/sys/net/ipv4/tcp_tw_recycle: No such file or directory
vm.swappiness = 0
vm.overcommit_memory = 1
vm.panic_on_oom = 0
fs.inotify.max_user_watches = 89100
fs.file-max = 52706963
fs.nr_open = 52706963
net.ipv6.conf.all.disable_ipv6 = 1
net.netfilter.nf_conntrack_max = 2310720

8、安装 Docker

8.1首先卸载旧版

yum remove  docker \
            docker-client \
            docker-client-latest \
            docker-common \
            docker-latest \
            docker-latest-logrotate \
            docker-logrotate \
            docker-selinux \
            docker-engine-selinux \
            docker-engine

8.2安装依赖包

yum install -y yum-utils device-mapper-persistent-data lvm2

8.3安装

yum makecache fast
yum list docker-ce --showduplicates | sort -r
yum -y install docker-ce-3:20.10.8-3.el8.x86_64

8.3设置docker开机自启

systemctl enable docker

8.4启动docker

systemctl start docker

8.5修改docker镜像源和daemon.json

sed -i "13i ExecStartPost=/usr/sbin/iptables -P FORWARD ACCEPT" /usr/lib/systemd/system/docker.service
tee /etc/docker/daemon.json <<-'EOF'
{
    "registry-mirrors": ["https://v0rjmu9s.mirror.aliyuncs.com"],
    "exec-opts": ["native.cgroupdriver=systemd"],
    "log-driver": "json-file",
    "log-opts": {
    "max-size": "100m"
},
    "storage-driver": "overlay2",
    "storage-opts": [
        "overlay2.override_kernel_check=true"
]
}
EOF
systemctl daemon-reload && systemctl restart docker

9、安装 kubeadm 和 kubelet

9.1配置安装源

cat <<EOF > /etc/yum.repos.d/kubernetes.repo
[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

9.2 安装k8s

yum -y install  kubeadm-1.22.2-0.x86_64 kubelet-1.22.2-0.x86_64 kubectl-1.22.2-0.x86_64

10、拉取所需镜像

kubeadm config images list --kubernetes-version v1.22.2

k8s.gcr.io/kube-apiserver:v1.22.2
k8s.gcr.io/kube-controller-manager:v1.22.2
k8s.gcr.io/kube-scheduler:v1.22.2
k8s.gcr.io/kube-proxy:v1.22.2
k8s.gcr.io/pause:3.5
k8s.gcr.io/etcd:3.5.0-0
k8s.gcr.io/coredns/coredns:v1.8.4

准备了所有的镜像
链接：https://pan.baidu.com/s/10yKcDMDCqnAG1kqNruBm6w        l8h4

三、初始化集群

1、使用kubeadm init初始化集群（注意修 apiserver 地址为本机IP）

kubeadm init  --kubernetes-version=v1.22.2 --apiserver-advertise-address=192.168.10.20 --pod-network-cidr=10.244.0.0/16 --service-cidr=10.1.0.0/16

2、为需要使用kubectl的用户进行配置

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

3、 集群网络配置安装 calico

4、添加计算节点

    kubectl get nodes
    NAME         STATUS   ROLES                  AGE   VERSION
    k8s-master   Ready    control-plane,master   16d   v1.22.2
    k8s-node1    Ready    <none>                 16d   v1.22.2
    k8s-node2    Ready    <none>                 16d   v1.22.2
上一篇 下一篇

猜你喜欢

热点阅读