Kubeadm 初始化Kubernetes手记

最新推荐文章于 2024-08-18 11:26:40 发布

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最新推荐文章于 2024-08-18 11:26:40 发布

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文章标签： kubeadm k8s

本文链接：https://blog.youkuaiyun.com/u013710468/article/details/100042471

版权

本文详细介绍Kubernetes集群的搭建过程，包括系统配置、组件安装、镜像下载、网络配置及节点加入等关键步骤。

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安装步骤

0. 安装要求

CPU 2cores
Memory 2GB

1. 禁用Swap

sysctl -w vm.swappiness=0 
echo "vm.swappiness = 0">> /etc/sysctl.conf  
swapoff -a 
free -m # 查看内存使用情况

2. 安装kubelet,kubeadmin,kubectl

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=1
repo_gpgcheck=1
gpgkey=https://mirrors.aliyun.com/kubernetes/yum/doc/yum-key.gpg https://mirrors.aliyun.com/kubernetes/yum/doc/rpm-package-key.gpg
EOF

# Set SELinux in permissive mode (effectively disabling it)
setenforce 0
sed -i 's/^SELINUX=enforcing$/SELINUX=permissive/' /etc/selinux/config

yum install -y kubelet kubeadm kubectl --disableexcludes=kubernetes

systemctl enable --now kubelet

3. 初始化Master节点

[root@localhost ~]#  kubeadm init --pod-network-cidr=192.168.0.0/16

如下是输出

W0823 01:26:08.812271   17297 version.go:98] could not fetch a Kubernetes version from the internet: unable to get URL "https://dl.k8s.io/release/stable-1.txt": Get https://dl.k8s.io/release/stable-1.txt: net/http: request canceled while waiting for connection (Client.Timeou

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