centos7 --kubeadm安装

最新推荐文章于 2025-07-16 18:51:06 发布

转载最新推荐文章于 2025-07-16 18:51:06 发布 · 189 阅读

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原文链接：http://www.cnblogs.com/kevincaptain/p/10454817.html

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#运维

本文详细介绍了在多种操作系统上部署Kubernetes集群的步骤，包括Ubuntu、Debian、CentOS等，强调了硬件需求如2GB RAM和2个CPU，网络连接及端口开放的重要性。提供了关闭SELinux、添加Google repo源、安装kubelet、kubeadm和kubectl的方法，并解释了如何配置网络桥接和禁用交换分区。

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One or more machines running one of:
Ubuntu 16.04+
Debian 9
CentOS 7
RHEL 7
Fedora 25/26 (best-effort)
HypriotOS v1.0.1+
Container Linux (tested with 1800.6.0)
内存：2 GB or more of RAM per machine (any less will leave little room for your apps)
cpu：2 CPUs or more
网络：Full network connectivity between all machines in the cluster (public or private network is fine)
独立：Unique hostname, MAC address, and product_uuid for every node. ip link or ifconfig -a ，cat /sys/class/dmi/id/product_uuid
端口开放：Certain ports are open on your machines. See here for more details.
swap：Swap disabled. You MUST disable swap in order for the kubelet to work properly

一、基础配置

#添加google repo源，要FQ。
cat <<EOF > /etc/yum.repos.d/kubernetes.repo
[kubernetes]
name=Kubernetes
baseurl=https://packages.cloud.google.com/yum/repos/kubernetes-el7-x86_64
enabled=1
gpgcheck=1
repo_gpgcheck=1
gpgkey=https://packages.cloud.google.com/yum/doc/yum-key.gpg https://packages.cloud.google.com/yum/doc/rpm-package-key.gpg
exclude=kube*
EOF

#关闭selinux
setenforce 0
sed -i 's/^SELINUX=enforcing$/SELINUX=permissive/' /etc/selinux/config



systemctl enable --now kubelet

二、安装kubelt kubeadm kubectl

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

三、启动

systemctl enable --now kubelet

其他

#如果防火墙启动的话，可能需要开启下面：
cat <<EOF >  /etc/sysctl.d/k8s.conf
net.bridge.bridge-nf-call-ip6tables = 1
net.bridge.bridge-nf-call-iptables = 1
EOF
sysctl --system

转载于:https://www.cnblogs.com/kevincaptain/p/10454817.html