[k8s]Kubeadm部署k8s 1.30

1. 结构规划

角色	ip
test-k8s-01	10.0.0.1
test-k8s-02	10.0.0.2
test-k8s-03	10.0.0.3

2. 操作系统初始化配置(所有k8s节点操作)

# 1、关闭防火墙 
systemctl stop firewalld 
systemctl disable firewalld 
 
# 2、关闭selinux 
sed -i 's/enforcing/disabled/' /etc/selinux/config  # 永久 
setenforce 0  # 临时 
 
# 3、关闭swap 
swapoff -a  # 临时 
sed -ri 's/.*swap.*/#&/' /etc/fstab    # 永久 
 
# 4、在master添加hosts 
cat >> /etc/hosts << EOF 
10.0.0.1 test-k8s-01
10.0.0.2 test-k8s-02 
10.0.0.3 test-k8s-03
EOF
 
# 5、将桥接的IPv4流量传递到iptables的链 
cat > /etc/sysctl.d/k8s.conf << EOF 
net.bridge.bridge-nf-call-iptables = 1
net.bridge.bridge-nf-call-ip6tables = 1
net.ipv4.ip_forward = 1
EOF

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

# 生效 
modprobe overlay
modprobe br_netfilter
sysctl --system
 
# 6、时间同步 
yum install ntpdate -y 
ntpdate time.windows.com

3. 获取包含containerd的docker源（所有k8s节点操作）

wget -O /etc/yum.repos.d/docker-ce.repo https://mirrors.aliyun.com/docker-ce/linux/centos/docker-ce.repo