openEuler安装Kubernetes

openEuler kubeadm安装Kubernetes

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禁用或关闭服务

firewalld

systemctl stop firewalld
systemctl disable firewalld

selinux

sed -i 's/SELINUX=enforcing/SELINUX=disabled/' /etc/selinux/config

swap 分区

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

设置后需重启生效

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设置内核

ipv4转发

sed -i 's/net.ipv4.ip_forward=0/net.ipv4.ip_forward=1/g' /etc/sysctl.conf

网桥过滤转发

cat >/etc/sysctl.d/k8s.conf<<EOF
net.bridge.bridge-nf-call-ip6tables = 1
net.bridge.bridge-nf-call-iptables = 1
vm.swappiness = 0
EOF

配置模块

cat >/etc/modules-load.d/k8s.conf<<EOF
overlay
br_netfilter
EOF

加载br_netfilter overlay模块

modprobe br_netfilter
modprobe overlay

更新内核配置

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

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安装ipset及ipvsadm

yum -y install ipset ipvsadm

配置ipvsadm模块加载

cat > /etc/sysconfig/modules/ipvs.module <<EOF
modprobe -- ip_vs
modprobe -- ip_vs_sh
modprobe -- ip_vs_rr
modprobe -- ip_vs_wrr
modprobe -- nf_conntrack
EOF

授权、运行、检查是否加载

chmod 755 /etc/sysconfig/modules/ipvs.module &&  /etc/sysconfig/modules/ipvs.module

查看对应的模块是否加载成功

lsmod | grep -e ip_vs -e nf_conntrack_ipv4

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设置hostname

• 本机ip 10.211.55.20
• hostname dev

编辑hosts文件

sed -i '$s/\(.*\)/\1\n10.211.55.20 dev/' /etc/hosts

设置hostname

hostnamectl hostname dev

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安装软件源

kubernetes

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

docker-ce

cat >/etc/yum.repos.d/dockerce.repo<<EOF
[docker-ce-stable]
name=Docker CE Stable - $basearch
baseurl=https://repo.huaweicloud.com/docker-ce/linux/centos/7/$basearch/stable
enabled=1
gpgcheck=1
gpgkey=https://repo.huaweicloud.com/docker-ce/linux/centos/gpg

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安装软件

yum install -y docker-ce containerd.io kubeadm kubectl kubelet