49 lines
1.2 KiB
Bash
49 lines
1.2 KiB
Bash
#!/bin/bash
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set -e
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echo "==== Kubernetes 环境准备 ===="
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# 1. 更新系统包
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echo "更新系统包..."
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sudo apt update && sudo apt upgrade -y
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# 2. 安装必要的工具
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echo "安装必要工具..."
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sudo apt install -y curl wget gnupg lsb-release ca-certificates apt-transport-https software-properties-common
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# 3. 禁用 swap
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echo "禁用 swap..."
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sudo swapoff -a
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sudo sed -i '/ swap / s/^\(.*\)$/#\1/g' /etc/fstab
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# 4. 配置内核参数
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echo "配置内核参数..."
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cat <<EOF_MODULES | sudo tee /etc/modules-load.d/k8s.conf
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overlay
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br_netfilter
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EOF_MODULES
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sudo modprobe overlay
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sudo modprobe br_netfilter
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# 5. 配置 sysctl 参数
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echo "配置 sysctl 参数..."
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cat <<EOF_SYSCTL | sudo tee /etc/sysctl.d/k8s.conf
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net.bridge.bridge-nf-call-iptables = 1
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net.bridge.bridge-nf-call-ip6tables = 1
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net.ipv4.ip_forward = 1
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EOF_SYSCTL
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sudo sysctl --system
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# 6. 配置防火墙
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echo "配置防火墙..."
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sudo ufw --force disable || true
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# 按你的要求，不在节点上修改 /etc/hosts
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echo "==== 环境准备完成 ===="
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echo "当前主机名: $(hostname)"
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echo "当前 IP: $(ip route get 1 | awk '{print $7; exit}')"
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echo "Swap 状态: $(swapon --show | wc -l) 个 swap 分区"
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