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352
bushujb.sh
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352
bushujb.sh
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#!/bin/bash
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# ===================================================
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# 脚本功能：
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# 1. 配置 systemd-networkd 网络桥接与 VLAN
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# 2. 配置 k3s agent 节点并启动服务
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# 3. 可通过配置文件 bushu.conf 管理所有参数
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# ===================================================
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set -euo pipefail
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# -----------------------
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# 检查 root 权限
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# -----------------------
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if [[ $EUID -ne 0 ]]; then
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echo "请使用 root 用户运行此脚本"
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exit 1
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fi
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# -----------------------
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# 引入配置文件
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# -----------------------
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CONFIG_FILE="./bushu.conf"
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if [[ -f "$CONFIG_FILE" ]]; then
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source "$CONFIG_FILE"
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else
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echo "配置文件 $CONFIG_FILE 不存在，请先创建！"
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exit 1
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fi
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# -----------------------
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# 网络配置部分
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# -----------------------
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echo "=== 开始 cloud 网桥配置 ==="
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# 备份现有网络配置
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mkdir -p /etc/systemd/network/backup
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cp /etc/systemd/network/*.network /etc/systemd/network/backup/ 2>/dev/null || true
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cp /etc/systemd/network/*.netdev /etc/systemd/network/backup/ 2>/dev/null || true
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echo "网络配置备份已完成"
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# 创建 cloud bridge
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cat > /etc/systemd/network/00-cloud.netdev << EOF
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[NetDev]
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Name=cloud
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Kind=bridge
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MACAddress=$CLOUD_MAC
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[Bridge]
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VLANFiltering=yes
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EOF
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# 配置 cloud 网络
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cat > /etc/systemd/network/00-cloud.network << EOF
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[Match]
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Name=cloud
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[Network]
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Address=$CLOUD_IP
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Address=$CLOUD_SECOND_IP
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Gateway=$CLOUD_GATEWAY
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DNS=$CLOUD_DNS
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ConfigureWithoutCarrier=yes
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[Link]
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RequiredForOnline=no-carrier
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EOF
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# cloud VLAN 子接口
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# cat > /etc/systemd/network/10-monitor.netdev << EOF
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# [NetDev]
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# Name=cloud-monitor
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# Kind=vlan
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# [VLAN]
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# Id=$MONITOR_VLAN_ID
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# EOF
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cat > /etc/systemd/network/00-$CLOUD_IFACE.network << EOF
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[Match]
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Name=$CLOUD_IFACE
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[Network]
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Bridge=cloud
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DHCP=no
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# VLAN=cloud-monitor
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[BridgeVLAN]
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VLAN=1-4094
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[BridgeVLAN]
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VLAN=1
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PVID=1
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EgressUntagged=1
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EOF
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# cat > /etc/systemd/network/10-monitor.network << EOF
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# # monitor
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# [Match]
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# Name=cloud-monitor
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# [Network]
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# ConfigureWithoutCarrier=yes
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# [Link]
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# RequiredForOnline=no-carrier
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# EOF
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echo "cloud 网桥配置已完成"
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# -----------------------
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echo "=== 开始 yewu 网桥配置 ==="
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# 创建 yewu bridge
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cat > /etc/systemd/network/00-yewu.netdev << EOF
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[NetDev]
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Name=yewu
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Kind=bridge
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MACAddress=$YEWU_MAC
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[Bridge]
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VLANFiltering=yes
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EOF
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# 配置 yewu 网络
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cat > /etc/systemd/network/00-yewu.network << EOF
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[Match]
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Name=yewu
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[Network]
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Address=$YEWU_IP
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Gateway=$YEWU_GATEWAY
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DNS=$YEWU_DNS
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ConfigureWithoutCarrier=yes
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[Link]
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RequiredForOnline=no-carrier
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EOF
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# 用户网卡接入 yewu bridge
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cat > /etc/systemd/network/00-$YEWU_IFACE.network << EOF
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[Match]
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Name=$YEWU_IFACE
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[Network]
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Bridge=yewu
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DHCP=no
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[BridgeVLAN]
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VLAN=1-4094
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[BridgeVLAN]
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VLAN=1
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PVID=1
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EgressUntagged=1
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EOF
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echo "yewu 网桥配置已完成"
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# 使用 networkctl reload 应用配置
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echo "正在重新加载网络配置..."
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networkctl reload
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echo "网络配置已生效"
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# -----------------------
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# k3s 配置部分
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# -----------------------
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echo "=== k3s 安装配置 ==="
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echo "=== 下载 K3s 二进制到 /usr/bin/ ==="
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curl -L -o /usr/bin/k3s "https://file.piicloud.com/f/4108d2f3b3c047be85a8/?dl=1"
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chmod +x /usr/bin/k3s
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ls -lh /usr/bin/k3s
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echo "=== 检查/创建 K3s agent 镜像目录 ==="
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if [ ! -d "/var/lib/rancher/agent/images" ]; then
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mkdir -p /var/lib/rancher/agent/images
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echo "目录已创建"
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else
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echo "目录已存在，跳过创建"
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fi
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# 下载镜像
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[ -f "/var/lib/rancher/agent/images/base.tar" ] || \
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curl -L -o /var/lib/rancher/agent/images/base.tar "https://file.piicloud.com/f/11cce6158b9e4f59ba2c/?dl=1"
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[ -f "/var/lib/rancher/agent/images/expend.tar" ] || \
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curl -L -o /var/lib/rancher/agent/images/expend.tar "https://file.piicloud.com/f/414c2646352945b282c0/?dl=1"
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chown root:root /var/lib/rancher/agent/images/*.tar
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chmod 644 /var/lib/rancher/agent/images/*.tar
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ls -lh /var/lib/rancher/agent/images/
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# 创建 systemd 服务文件
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cat > /etc/systemd/system/k3s.service << EOF
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[Unit]
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Description=Lightweight Kubernetes
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Documentation=https://k3s.io
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Wants=network-online.target
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After=network-online.target
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[Install]
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WantedBy=multi-user.target
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[Service]
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Type=notify
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EnvironmentFile=-/etc/default/%N
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EnvironmentFile=-/etc/sysconfig/%N
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EnvironmentFile=-/etc/systemd/system/k3s.service.env
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KillMode=process
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Delegate=yes
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User=root
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LimitNOFILE=1048576
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LimitNPROC=infinity
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LimitCORE=infinity
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TasksMax=infinity
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TimeoutStartSec=0
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Restart=always
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RestartSec=5s
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ExecStartPre=-/sbin/modprobe br_netfilter
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ExecStartPre=-/sbin/modprobe overlay
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ExecStart=/usr/bin/k3s server
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EOF
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# 创建 override 配置
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mkdir -p /etc/systemd/system/k3s.service.d
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cat > /etc/systemd/system/k3s.service.d/override.conf << EOF
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[Service]
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ExecStart=
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ExecStart=/usr/bin/k3s agent \
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--server https://$MASTER_IP:6443 \
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--token $K3S_TOKEN \
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--node-name $NODE_NAME \
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--node-ip $NODE_IP \
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--node-external-ip $NODE_EXT_IP \
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--kubelet-arg max-pods=120
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EOF
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# 创建 registries.yaml
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mkdir -p /etc/rancher/k3s/
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cat > /etc/rancher/k3s/registries.yaml << EOF
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configs:
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harbor.tdology.com:
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auth:
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password: Y_TSq6qDJBZC}538
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username: admin
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mirrors:
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docker.io:
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endpoint:
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- http://localhost:30500
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- https://harbor.tdology.com
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EOF
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# -----------------------
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# NVMe 初始化
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# -----------------------
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# -----------------------
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# NVMe 挂载与绑定挂载
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# -----------------------
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# 确保主挂载点存在
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mkdir -p /mnt/nvme
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# 挂载 /mnt/nvme
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if ! mountpoint -q /mnt/nvme; then
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echo "挂载 /dev/nvme0n1p1 到 /mnt/nvme ..."
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mount /dev/nvme0n1p1 /mnt/nvme
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else
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echo "/mnt/nvme 已经挂载，跳过挂载"
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fi
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# 确保绑定挂载目标目录存在
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mkdir -p /var/lib/rancher
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mkdir -p /var/lib/longhorn
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# 挂载 /var/lib/rancher
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if ! mountpoint -q /var/lib/rancher; then
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echo "绑定挂载 /mnt/nvme/rancher 到 /var/lib/rancher ..."
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mount --bind /mnt/nvme/rancher /var/lib/rancher
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else
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echo "/var/lib/rancher 已经挂载，跳过绑定挂载"
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fi
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# 挂载 /var/lib/longhorn
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if ! mountpoint -q /var/lib/longhorn; then
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echo "绑定挂载 /mnt/nvme/longhorn 到 /var/lib/longhorn ..."
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mount --bind /mnt/nvme/longhorn /var/lib/longhorn
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else
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echo "/var/lib/longhorn 已经挂载，跳过绑定挂载"
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fi
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# 更新 /etc/fstab，保证开机自动挂载
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NVME_UUID=$(blkid -s UUID -o value /dev/nvme0n1p1)
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grep -qE "[[:space:]]/mnt/nvme[[:space:]]" /etc/fstab || \
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echo "UUID=${NVME_UUID} /mnt/nvme ext4 defaults,nofail 0 2" >> /etc/fstab
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grep -qE "^/mnt/nvme/rancher[[:space:]]+/var/lib/rancher[[:space:]]+none[[:space:]]+bind" /etc/fstab || \
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echo "/mnt/nvme/rancher /var/lib/rancher none bind 0 0" >> /etc/fstab
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grep -qE "^/mnt/nvme/longhorn[[:space:]]+/var/lib/longhorn[[:space:]]+none[[:space:]]+bind" /etc/fstab || \
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echo "/mnt/nvme/longhorn /var/lib/longhorn none bind 0 0" >> /etc/fstab
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# 显示挂载状态
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findmnt /mnt/nvme
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findmnt /var/lib/rancher
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findmnt /var/lib/longhorn
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# -----------------------
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# 时间同步
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# -----------------------
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echo "=== 安装并配置 chrony ==="
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apt update
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apt install -y chrony linuxptp
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cp /etc/chrony/chrony.conf /etc/chrony/chrony.conf.bak 2>/dev/null
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cat > /etc/chrony/chrony.conf << EOF
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server 10.250.0.1 iburst prefer
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server 10.250.0.2 iburst
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server 10.250.0.3 iburst
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driftfile /var/lib/chrony/chrony.drift
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makestep 1.0 3
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rtcsync
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logdir /var/log/chrony
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EOF
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systemctl enable chrony
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systemctl restart chrony
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chronyc sources
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chronyc tracking
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echo "=== 启动 PTP 同步 ==="
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ptp4l -i $CLOUD_IFACE -m &
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phc2sys -s $CLOUD_IFACE -c CLOCK_REALTIME -m &
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# -----------------------
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# 域名解析
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# -----------------------
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echo "=== 配置 /etc/hosts ==="
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for entry in "${HOSTS_ENTRIES[@]}"; do
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grep -qF "$entry" /etc/hosts || echo "$entry" >> /etc/hosts
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done
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# -----------------------
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# 启动 k3s 服务
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# -----------------------
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systemctl daemon-reload
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systemctl enable k3s
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systemctl start k3s
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echo "k3s 配置完成"
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