大量更新

2026-05-19 14:28:44 +08:00
parent a8f6bda703
commit 9fc3372fa3
5299 changed files with 423176 additions and 426690 deletions
--- a/78-202603-重庆巫山监管/disk.sh
+++ b/78-202603-重庆巫山监管/disk.sh
@@ -0,0 +1,250 @@
+#!/usr/bin/env bash
+set -euo pipefail
+
+DISK="/dev/sdb"
+PART="${DISK}1"
+
+NEW_VG="docker_vg"
+NEW_LV="docker_lv"
+MOUNT_POINT="/var/lib/docker"
+FS_TYPE="ext4"     # 可改 ext4
+LV_SIZE="100%FREE"
+
+log() {
+  echo -e "\n[INFO] $*"
+}
+
+warn() {
+  echo -e "\n[WARN] $*" >&2
+}
+
+die() {
+  echo -e "\n[ERROR] $*" >&2
+  exit 1
+}
+
+require_cmd() {
+  command -v "$1" >/dev/null 2>&1 || die "缺少命令: $1"
+}
+
+cleanup_mounts_on_disk() {
+  log "检查 ${DISK} 相关挂载点"
+  mapfile -t mps < <(lsblk -nrpo NAME,MOUNTPOINT "${DISK}" | awk '$2 != "" {print $2}' | sort -u)
+
+  if [[ ${#mps[@]} -gt 0 ]]; then
+    warn "发现 ${DISK} 上存在挂载点: ${mps[*]}"
+    for mp in "${mps[@]}"; do
+      if mountpoint -q "$mp"; then
+        log "卸载挂载点: $mp"
+        umount -f "$mp" || die "无法卸载 $mp"
+      fi
+    done
+  else
+    log "未发现 ${DISK} 的活动挂载点"
+  fi
+}
+
+stop_docker() {
+  log "停止 Docker 相关服务"
+  systemctl stop docker 2>/dev/null || true
+  systemctl stop docker.socket 2>/dev/null || true
+  systemctl stop containerd 2>/dev/null || true
+}
+
+deactivate_old_lvm() {
+  log "检查旧 LVM 信息"
+
+  # 尝试识别 /dev/sdb 或 /dev/sdb1 所属 VG
+  local old_vg=""
+  old_vg="$(pvs --noheadings -o vg_name "${DISK}" 2>/dev/null | awk '{$1=$1;print}' | head -n1 || true)"
+
+  if [[ -z "${old_vg}" && -b "${PART}" ]]; then
+    old_vg="$(pvs --noheadings -o vg_name "${PART}" 2>/dev/null | awk '{$1=$1;print}' | head -n1 || true)"
+  fi
+
+  if [[ -n "${old_vg}" ]]; then
+    warn "发现旧 VG: ${old_vg}"
+
+    log "列出旧 LV"
+    lvs --noheadings -o lv_name "${old_vg}" 2>/dev/null | awk '{$1=$1;print}' || true
+
+    # 尝试卸载该 VG 下所有 LV 的挂载
+    while read -r lv; do
+      [[ -z "${lv}" ]] && continue
+      local lv_path="/dev/${old_vg}/${lv}"
+      if [[ -e "${lv_path}" ]]; then
+        local mp
+        mp="$(lsblk -nrpo MOUNTPOINT "${lv_path}" 2>/dev/null | awk 'NF{print; exit}' || true)"
+        if [[ -n "${mp}" && "${mp}" != "[SWAP]" ]]; then
+          log "卸载 LV 挂载点: ${mp}"
+          umount -f "${mp}" || true
+        fi
+      fi
+    done < <(lvs --noheadings -o lv_name "${old_vg}" 2>/dev/null | awk '{$1=$1;print}')
+
+    log "停用 VG: ${old_vg}"
+    vgchange -an "${old_vg}" || true
+
+    # 再次激活以便删除 LV，部分系统需要先处于可见状态
+    vgchange -ay "${old_vg}" || true
+
+    # 删除该 VG 下所有 LV
+    while read -r lv; do
+      [[ -z "${lv}" ]] && continue
+      local lv_path="/dev/${old_vg}/${lv}"
+      if [[ -e "${lv_path}" ]]; then
+        log "删除旧 LV: ${lv_path}"
+        lvremove -ff -y "${lv_path}" || true
+      fi
+    done < <(lvs --noheadings -o lv_name "${old_vg}" 2>/dev/null | awk '{$1=$1;print}')
+
+    log "停用并删除旧 VG: ${old_vg}"
+    vgchange -an "${old_vg}" || true
+    vgremove -ff -y "${old_vg}" || true
+  else
+    log "未发现 ${DISK} / ${PART} 上关联的 VG"
+  fi
+
+  # 删除旧 PV
+  if pvs "${PART}" >/dev/null 2>&1; then
+    log "删除旧 PV: ${PART}"
+    pvremove -ff -y "${PART}" || true
+  fi
+
+  if pvs "${DISK}" >/dev/null 2>&1; then
+    log "删除旧 PV: ${DISK}"
+    pvremove -ff -y "${DISK}" || true
+  fi
+
+  # 额外清理 device-mapper 残留
+  log "清理可能遗留的 device-mapper 映射"
+  dmsetup remove_all 2>/dev/null || true
+  udevadm settle || true
+}
+
+wipe_disk() {
+  log "清理磁盘签名和分区表: ${DISK}"
+
+  swapoff -a 2>/dev/null || true
+
+  wipefs -a "${PART}" 2>/dev/null || true
+  wipefs -a "${DISK}" 2>/dev/null || true
+
+  sgdisk --zap-all "${DISK}" || true
+  dd if=/dev/zero of="${DISK}" bs=1M count=20 conv=fsync status=none || true
+
+  sync
+  partprobe "${DISK}" || true
+  blockdev --rereadpt "${DISK}" || true
+  udevadm settle || true
+
+  # 如果分区节点还在，尝试删除
+  if [[ -b "${PART}" ]]; then
+    warn "${PART} 仍然存在，尝试删除分区表项"
+    parted -s "${DISK}" rm 1 2>/dev/null || true
+    partprobe "${DISK}" || true
+    udevadm settle || true
+  fi
+}
+
+prepare_mountpoint() {
+  log "准备挂载目录: ${MOUNT_POINT}"
+
+  if mountpoint -q "${MOUNT_POINT}"; then
+    umount -f "${MOUNT_POINT}" || die "无法卸载 ${MOUNT_POINT}"
+  fi
+
+  mkdir -p "${MOUNT_POINT}"
+
+  if [[ -n "$(ls -A "${MOUNT_POINT}" 2>/dev/null || true)" ]]; then
+    local backup_dir="${MOUNT_POINT}.bak.$(date +%F_%H%M%S)"
+    warn "${MOUNT_POINT} 非空，备份到 ${backup_dir}"
+    mv "${MOUNT_POINT}" "${backup_dir}"
+    mkdir -p "${MOUNT_POINT}"
+  fi
+}
+
+create_new_lvm() {
+  log "在整块磁盘 ${DISK} 上创建新的 LVM"
+
+  pvcreate -ff -y "${DISK}"
+  vgcreate "${NEW_VG}" "${DISK}"
+  lvcreate -n "${NEW_LV}" -l "${LV_SIZE}" "${NEW_VG}"
+
+  local lv_path="/dev/${NEW_VG}/${NEW_LV}"
+
+  log "格式化文件系统: ${FS_TYPE}"
+  if [[ "${FS_TYPE}" == "xfs" ]]; then
+    mkfs.xfs -f "${lv_path}"
+  elif [[ "${FS_TYPE}" == "ext4" ]]; then
+    mkfs.ext4 -F "${lv_path}"
+  else
+    die "不支持的文件系统: ${FS_TYPE}"
+  fi
+
+  local uuid
+  uuid="$(blkid -s UUID -o value "${lv_path}")"
+  [[ -n "${uuid}" ]] || die "获取 UUID 失败"
+
+  log "写入 /etc/fstab"
+  cp /etc/fstab "/etc/fstab.bak.$(date +%F_%H%M%S)"
+  sed -i "\|[[:space:]]${MOUNT_POINT}[[:space:]]|d" /etc/fstab
+  echo "UUID=${uuid} ${MOUNT_POINT} ${FS_TYPE} defaults 0 0" >> /etc/fstab
+
+  log "挂载 ${MOUNT_POINT}"
+  mount -a
+
+  log "挂载结果校验"
+  df -TH "${MOUNT_POINT}"
+  lsblk
+}
+
+start_docker() {
+  log "启动 Docker"
+  systemctl daemon-reload
+  systemctl start containerd 2>/dev/null || true
+  systemctl start docker
+  systemctl enable docker 2>/dev/null || true
+}
+
+main() {
+  require_cmd lsblk
+  require_cmd pvs
+  require_cmd vgs
+  require_cmd lvs
+  require_cmd pvcreate
+  require_cmd vgcreate
+  require_cmd lvcreate
+  require_cmd wipefs
+  require_cmd sgdisk
+  require_cmd partprobe
+  require_cmd blkid
+  require_cmd dmsetup
+  require_cmd parted
+
+  [[ "$(id -u)" -eq 0 ]] || die "请使用 root 执行"
+
+  [[ -b "${DISK}" ]] || die "磁盘不存在: ${DISK}"
+
+  echo "======================================================"
+  echo "即将彻底清空 ${DISK} 并挂载到 ${MOUNT_POINT}"
+  echo "目标 VG: ${NEW_VG}"
+  echo "目标 LV: ${NEW_LV}"
+  echo "文件系统: ${FS_TYPE}"
+  echo "警告: 此操作会销毁 ${DISK} 上所有数据"
+  echo "======================================================"
+  read -r -p "确认执行请输入 YES: " ans
+  [[ "${ans}" == "YES" ]] || die "用户取消"
+
+  stop_docker
+  cleanup_mounts_on_disk
+  deactivate_old_lvm
+  wipe_disk
+  prepare_mountpoint
+  create_new_lvm
+  start_docker
+
+  log "完成: ${DISK} -> /dev/${NEW_VG}/${NEW_LV} -> ${MOUNT_POINT}"
+}
+
+main "$@"