mirror of
https://github.com/yyhuni/xingrin.git
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63 lines
1.6 KiB
Bash
Executable File
63 lines
1.6 KiB
Bash
Executable File
#!/bin/bash
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# 系统监控初始化脚本：8G Swap + Netdata + OOM 保护
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# 需要 root 权限运行
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set -e
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SWAP_SIZE="8G"
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SWAP_FILE="/swapfile"
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echo "========== 系统监控初始化 =========="
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# 1. 设置 Swap
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echo "[1/3] 配置 ${SWAP_SIZE} Swap..."
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if swapon --show | grep -q "${SWAP_FILE}"; then
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echo " Swap 已存在，跳过"
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else
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fallocate -l ${SWAP_SIZE} ${SWAP_FILE}
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chmod 600 ${SWAP_FILE}
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mkswap ${SWAP_FILE}
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swapon ${SWAP_FILE}
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# 添加到 fstab（如果不存在）
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if ! grep -q "${SWAP_FILE}" /etc/fstab; then
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echo "${SWAP_FILE} none swap sw 0 0" >> /etc/fstab
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fi
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echo " Swap 配置完成"
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fi
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# 2. 安装 Netdata
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echo "[2/3] 安装 Netdata..."
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if command -v netdata &> /dev/null; then
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echo " Netdata 已安装，跳过"
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else
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curl -fsSL https://get.netdata.cloud/kickstart.sh -o /tmp/netdata-kickstart.sh
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bash /tmp/netdata-kickstart.sh --non-interactive --stable-channel
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rm -f /tmp/netdata-kickstart.sh
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echo " Netdata 安装完成"
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fi
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# 3. 设置 Netdata OOM 保护
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echo "[3/3] 配置 OOM 保护..."
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OOM_CONF_DIR="/etc/systemd/system/netdata.service.d"
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OOM_CONF_FILE="${OOM_CONF_DIR}/oom.conf"
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if [ -f "${OOM_CONF_FILE}" ]; then
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echo " OOM 保护已配置，跳过"
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else
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mkdir -p ${OOM_CONF_DIR}
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cat > ${OOM_CONF_FILE} << 'EOF'
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[Service]
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OOMScoreAdjust=-1000
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EOF
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systemctl daemon-reload
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systemctl restart netdata
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echo " OOM 保护配置完成"
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fi
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echo ""
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echo "========== 配置完成 =========="
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echo "Swap: $(swapon --show --bytes | awk 'NR==2{print $3/1024/1024/1024 " GB"}')"
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echo "Netdata: http://$(hostname -I | awk '{print $1}'):19999"
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echo ""
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