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centos7.9安装kubernetes1.27.4版本

发布时间 2023-11-09 21:51:34作者: GlassHeart
. /etc/os-release

color () {
    RES_COL=60
    MOVE_TO_COL="echo -en \\033[${RES_COL}G"
    SETCOLOR_SUCCESS="echo -en \\033[1;32m"
    SETCOLOR_FAILURE="echo -en \\033[1;31m"
    SETCOLOR_WARNING="echo -en \\033[1;33m"
    SETCOLOR_NORMAL="echo -en \E[0m"
    echo -n "$1" && $MOVE_TO_COL
    echo -n "["
    if [ $2 = "success" -o $2 = "0" ] ;then
        ${SETCOLOR_SUCCESS}
        echo -n $"  OK  "
    elif [ $2 = "failure" -o $2 = "1"  ] ;then
        ${SETCOLOR_FAILURE}
        echo -n $"FAILED"
    else
        ${SETCOLOR_WARNING}
        echo -n $"WARNING"
    fi
    ${SETCOLOR_NORMAL}
    echo -n "]"
    echo
}

echo -e "\e[1;32m安装kubernetes1.27.4版本\e[0m"
#echo -e "\e[1;32m配置yum源\e[0m"
#[ ! -d /data/bak ] && mkdir -p /data/bak

#判断文件夹是否有文件
#    if [ "`ls -A /etc/yum.repos.d/`" != "" ];then
#        mv /etc/yum.repos.d/*  /data/bak
#    else
#        echo ""
#    fi

#[ -d /mnt/cdrom ] || mkdir /mnt/cdrom
#mount /dev/sr0 /mnt/cdrom
    

#cat > /etc/yum.repos.d/base.repo <<EOF
#[base]
#name=CentOS
#baseurl=file:///mnt/cdrom/BaseOS
#        https://mirror.tuna.tsinghua.edu.cn/centos/\$releasever/os/\$basearch/
#        https://mirrors.huaweicloud.com/centos/\$releasever/os/\$basearch/
#        https://mirrors.cloud.tencent.com/centos/\$releasever/os/\$basearch/
#        https://mirrors.aliyun.com/centos/\$releasever/os/\$basearch/
#gpgcheck=0

#[extras]
#name=extras
#baseurl=https://mirror.tuna.tsinghua.edu.cn/centos/\$releasever/extras/\$basearch
#        https://mirrors.huaweicloud.com/centos/\$releasever/extras/\$basearch
#        https://mirrors.cloud.tencent.com/centos/\$releasever/extras/\$basearch
#        https://mirrors.aliyun.com/centos/\$releasever/extras/\$basearch
#       
#gpgcheck=0
#enabled=1


#[epel]
#name=EPEL
#baseurl=https://mirror.tuna.tsinghua.edu.cn/epel/\$releasever/\$basearch
#        https://mirrors.cloud.tencent.com/epel/\$releasever/\$basearch/
#        https://mirrors.huaweicloud.com/epel/\$releasever/\$basearch
#        https://mirrors.cloud.tencent.com/epel/\$releasever/\$basearch
#        http://mirrors.aliyun.com/epel/\$releasever/\$basearch
#gpgcheck=0
#enabled=1
#EOF
#    yum clean all
#    yum makecache
#    yum repolist



#cat >> /etc/fstab << EOF
#/dev/sr0               /mnt/cdrom              iso9660  defaults        0 0
#EOF

#[ $? -eq 0 ] && color 已配置 0 || { color 写入失败 1;exit; }

echo -e "\e[1;35m==========================================================================================================================================================================================================================================\e[0m"
echo -e "\e[1;32m关闭swap\e[0m"
swapoff -a
sed -i '/swap/s/^/#/' /etc/fstab
[ $? -eq 0 ] && color "成功 " 0 || color "失败 " 1



#echo -e "\e[1;32m关闭防火墙\e[0m"
#systemctl disable --now firewalld

#echo -e "\e[1;32m时间同步\e[0m"
#yum -y install ntpdate
#ntpdate time2.aliyun.com
# 加入到crontab
#*/5 * * * * /usr/sbin/ntpdate time2.aliyun.com

echo -e "\e[1;35m==========================================================================================================================================================================================================================================\e[0m"
echo -e "\e[1;32m修改主机名\e[0m"
hostnamectl set-hostname k8s-master01



cat <<EOF >> /etc/hosts
10.0.0.21 k8s-master01
10.0.0.22 k8s-node01
EOF

echo -e "\e[1;35m==========================================================================================================================================================================================================================================\e[0m"
echo -e "\e[1;32m修改Linux内核参数，添加网桥过滤器和地址转发功能\e[0m"
cat >> /etc/sysctl.d/kubernetes.conf <<EOF
net.bridge.bridge-nf-call-ip6tables = 1
net.bridge.bridge-nf-call-iptables = 1
net.ipv4.ip_forward = 1
EOF


modprobe br_netfilter
sysctl -p /etc/sysctl.d/kubernetes.conf
[ $? -eq 0 ] && color "成功 " 0 || color "失败 " 1



echo -e "\e[1;35m==========================================================================================================================================================================================================================================\e[0m"
echo -e "\e[1;32m配置ipvs功能\e[0m"
yum -y install ipset ipvsadm
cat > /etc/sysconfig/modules/ipvs.modules <<EOF
modprobe -- ip_vs
modprobe -- ip_vs_rr
modprobe -- ip_vs_wrr
modprobe -- ip_vs_sh
modprobe -- nf_conntrack_ipv4  
EOF
chmod +x /etc/sysconfig/modules/ipvs.modules
/etc/sysconfig/modules/ipvs.modules

[ $? -eq 0 ] && color "成功 " 0 || color "失败 " 1


echo -e "\e[1;35m==========================================================================================================================================================================================================================================\e[0m"
echo -e "\e[1;32m安装Docker容器\e[0m"
curl -o /etc/yum.repos.d/CentOS-Base.repo https://mirrors.aliyun.com/repo/Centos-7.repo
wget -O /etc/yum.repos.d/epel.repo http://mirrors.aliyun.com/repo/epel-7.repo
yum makecache
yum install -y yum-utils


yum-config-manager --add-repo http://mirrors.aliyun.com/docker-ce/linux/centos/docker-ce.repo
yum install docker-ce-20.10.6 docker-ce-cli-20.10.6 -y
mkdir /etc/docker

cat <<EOF > /etc/docker/daemon.json
{
"registry-mirrors": [
 "https://docker.mirrors.ustc.edu.cn",
 "https://hub-mirror.c.163.com",
 "https://reg-mirror.qiniu.com",
 "https://registry.docker-cn.com"
],
"exec-opts": ["native.cgroupdriver=systemd"],
"log-driver": "json-file",
"log-opts": {
"max-size": "200m"
},
"storage-driver": "overlay2"
}
EOF
systemctl enable --now docker
[ $? -eq 0 ] && color "成功 " 0 || color "失败 " 1


echo -e "\e[1;35m==========================================================================================================================================================================================================================================\e[0m"
echo -e "\e[1;32m安装cri-dockerd-0.3.1插件\e[0m"

if [ -e cri-dockerd-0.3.1-3.el7.x86_64.rpm ];then
    echo -e "\e[1;35m 文件已存在，开始安装\e[0m"
else
    echo -e "\e[1;31m开始下载\e[0m"
    wget https://github.com/Mirantis/cri-dockerd/releases/download/v0.3.1/cri-dockerd-0.3.1-3.el7.x86_64.rpm
    if [ $? -eq 0 ];then
        echo -e "\e[1;32m下载成功\e[0m"
    else
        echo -e "\e[1;32m下载失败，检查下载链接\e[0m"
        exit
    fi
fi
#wget https://github.com/Mirantis/cri-dockerd/releases/download/v0.3.1/cri-dockerd-0.3.1-3.el7.x86_64.rpm
rpm -ivh cri-dockerd-0.3.1-3.el7.x86_64.rpm
sed -i "s/^ExecStart/#&/" /usr/lib/systemd/system/cri-docker.service
sed -i '10iExecStart=/usr/bin/cri-dockerd --network-plugin=cni --pod-infra-container-image=registry.aliyuncs.com/google_containers/pause:3.7' /usr/lib/systemd/system/cri-docker.service
systemctl daemon-reload && systemctl restart docker cri-docker.socket cri-docker

[ $? -eq 0 ] && color "成功 " 0 || color "失败 " 1



echo -e "\e[1;35m==========================================================================================================================================================================================================================================\e[0m"
echo -e "\e[1;32m配置国内yum源，安装 kubeadm、kubelet、kubectl\e[0m"


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
EOF


yum install -y kubelet-1.27.4 kubeadm-1.27.4 kubectl-1.27.4
systemctl enable kubelet.service --now

[ $? -eq 0 ] && color "成功 " 0 || color "失败 " 1


echo -e "\e[1;35m==========================================================================================================================================================================================================================================\e[0m"
echo -e "\e[1;32m安装runc-1.1.10\e[0m"


if [ -e runc.amd64 ];then
    echo -e "\e[1;35m 文件已存在，开始安装\e[0m"
else
    echo -e "\e[1;31m开始下载\e[0m"
    wget https://github.com/opencontainers/runc/releases/download/v1.1.10/runc.amd64
    if [ $? -eq 0 ];then
        echo -e "\e[1;32m下载成功\e[0m"
    else
        echo -e "\e[1;32m下载失败，检查下载链接\e[0m"
        exit
    fi
fi

sudo install -m 755 runc.amd64  /usr/local/bin/runc
[ $? -eq 0 ] && color "成功 " 0 || color "失败 " 1
runc -v

echo -e "\e[1;35m==========================================================================================================================================================================================================================================\e[0m"
echo -e "\e[1;32m初始化\e[0m"
kubeadm init --node-name=k8s-master01 --image-repository=registry.aliyuncs.com/google_containers --cri-socket=unix:///var/run/cri-dockerd.sock --apiserver-advertise-address=10.0.0.21 --pod-network-cidr=10.244.0.0/16 --service-cidr=10.96.0.0/12

exec bash

}