1.从镜像里拷贝文件

 /usr/bin/docker run --rm -v /root:/temp image /bin/cp -f /xxx.tar.gz /temp/xxx.tar.gz

2.rbd status命令提示没有ceph.conf

  rbd status test-data/kubernetes-dynamic-pvc-23922029-3f95-4b6b-a6fa-f8f77abb28c7 --user admin -m 10.10.18.65:6789 --keyfile /root/cephkey

3.nfs手动挂载命令

  mount -t nfs 10.10.10.10:/nfs /root/nfs 

4.cephfs手动挂载命令

mount -t ceph 10.10.10.10:6789:/ /root/cephroot/ -o name=admin,secret=AQAUOOWD902LKJSDA81P8RkO3570LvsD3Kbzrcw==

5.apt-get仅下载包

  rm -rf /var/cache/apt/archives/*
  apt-get -d install <包名>
  cd /var/cache/apt/archives

6.yum仅下载包

  sudo yum install --downloadonly --downloaddir=/root/package/nano nano

7.rbd查找占用进程及卸载

grep " /dev/rbd0 " /proc/*/task/*/mountinfo | head -n 1 | awk '{print $1}' | awk -F "proc/" '{print $2}' | awk -F "/task" '{print $1}'

#!/bin/bash
  unmapByAnotherWay(){
      mountTask=`grep " /dev/$1 " /proc/*/task/*/mountinfo | head -n 1 | awk '{print $1}' | awk -F "proc/" '{print $2}' | awk -F "/task" '{print $1}'`
      kill -9 ${mountTask}
      rbd unmap /dev/$1
  }
  device=`rbd showmapped | grep $1 | grep "/dev" | awk '{printf "%s\n",$5}' | awk -F '/dev/' '{print $2}'`
      if [ -n "$device" ]; then
          # umount
          proc=`ps -ef | grep jbd2 | grep ${device} | head -n 1 | awk '{printf "%s\n",$3}'`
          rbd_dirs=`cat /proc/${proc}/mounts | grep ${device} | awk '{printf "%s\n", $2}'`
          for dir in ${rbd_dirs}; do
              umount ${dir}
          done
          # unmap
          rbd unmap /dev/${device}
          # Make sure unmap success, or we will unmap by another way
          unmapFinished=`rbd showmapped | grep " /dev/${device} "`
          if [ -n "$unmapFinished" ]; then
              unmapByAnotherWay ${device}
          fi
          echo "csi-rbd-anti-brain-split-success"
      else
          echo "csi-rbd no device found"
      fi

8.批量删除ci

  kubectl get ci -n test-ns | grep xxx | awk '{print $1}' | xargs kubectl patch -n  test-ns com --type merge --patch-file patch.yaml
  patch.yaml
  metadata:
    finalizers:

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