ceph/qa/workunits/rbd/kernel.sh

   1 #!/usr/bin/env bash
   2 set -ex
   3
   4 CEPH_SECRET_FILE=${CEPH_SECRET_FILE:-}
   5 CEPH_ID=${CEPH_ID:-admin}
   6 SECRET_ARGS=''
   7 if [ ! -z $CEPH_SECRET_FILE ]; then
   8         SECRET_ARGS="--secret $CEPH_SECRET_FILE"
   9 fi
  10
  11 TMP_FILES="/tmp/img1 /tmp/img1.small /tmp/img1.snap1 /tmp/img1.export /tmp/img1.trunc"
  12
  13 function expect_false() {
  14         if "$@"; then return 1; else return 0; fi
  15 }
  16
  17 function get_device_dir {
  18         local POOL=$1
  19         local IMAGE=$2
  20         local SNAP=$3
  21         rbd device list | tail -n +2 | egrep "\s+$POOL\s+$IMAGE\s+$SNAP\s+" |
  22             awk '{print $1;}'
  23 }
  24
  25 function clean_up {
  26         [ -e /dev/rbd/rbd/testimg1@snap1 ] &&
  27                 sudo rbd device unmap /dev/rbd/rbd/testimg1@snap1
  28         if [ -e /dev/rbd/rbd/testimg1 ]; then
  29                 sudo rbd device unmap /dev/rbd/rbd/testimg1
  30                 rbd snap purge testimg1 || true
  31         fi
  32         rbd ls | grep testimg1 > /dev/null && rbd rm testimg1 || true
  33         sudo rm -f $TMP_FILES
  34 }
  35
  36 clean_up
  37
  38 trap clean_up INT TERM EXIT
  39
  40 # create an image
  41 dd if=/bin/sh of=/tmp/img1 bs=1k count=1 seek=10
  42 dd if=/bin/dd of=/tmp/img1 bs=1k count=10 seek=100
  43 dd if=/bin/rm of=/tmp/img1 bs=1k count=100 seek=1000
  44 dd if=/bin/ls of=/tmp/img1 bs=1k seek=10000
  45 dd if=/bin/ln of=/tmp/img1 bs=1k seek=100000
  46 dd if=/dev/zero of=/tmp/img1 count=0 seek=150000
  47
  48 # import
  49 rbd import /tmp/img1 testimg1
  50 sudo rbd device map testimg1 --user $CEPH_ID $SECRET_ARGS
  51
  52 DEV_ID1=$(get_device_dir rbd testimg1 -)
  53 echo "dev_id1 = $DEV_ID1"
  54 cat /sys/bus/rbd/devices/$DEV_ID1/size
  55 cat /sys/bus/rbd/devices/$DEV_ID1/size | grep 76800000
  56
  57 sudo dd if=/dev/rbd/rbd/testimg1 of=/tmp/img1.export
  58 cmp /tmp/img1 /tmp/img1.export
  59
  60 # snapshot
  61 rbd snap create testimg1 --snap=snap1
  62 sudo rbd device map --snap=snap1 testimg1 --user $CEPH_ID $SECRET_ARGS
  63
  64 DEV_ID2=$(get_device_dir rbd testimg1 snap1)
  65 cat /sys/bus/rbd/devices/$DEV_ID2/size | grep 76800000
  66
  67 sudo dd if=/dev/rbd/rbd/testimg1@snap1 of=/tmp/img1.snap1
  68 cmp /tmp/img1 /tmp/img1.snap1
  69
  70 # resize
  71 rbd resize testimg1 --size=40 --allow-shrink
  72 cat /sys/bus/rbd/devices/$DEV_ID1/size | grep 41943040
  73 cat /sys/bus/rbd/devices/$DEV_ID2/size | grep 76800000
  74
  75 sudo dd if=/dev/rbd/rbd/testimg1 of=/tmp/img1.small
  76 cp /tmp/img1 /tmp/img1.trunc
  77 truncate -s 41943040 /tmp/img1.trunc
  78 cmp /tmp/img1.trunc /tmp/img1.small
  79
  80 # rollback expects an unlocked image
  81 # (acquire and) release the lock as a side effect
  82 rbd bench --io-type read --io-size 1 --io-threads 1 --io-total 1 testimg1
  83
  84 # rollback and check data again
  85 rbd snap rollback --snap=snap1 testimg1
  86 cat /sys/bus/rbd/devices/$DEV_ID1/size | grep 76800000
  87 cat /sys/bus/rbd/devices/$DEV_ID2/size | grep 76800000
  88 sudo rm -f /tmp/img1.snap1 /tmp/img1.export
  89
  90 sudo dd if=/dev/rbd/rbd/testimg1@snap1 of=/tmp/img1.snap1
  91 cmp /tmp/img1 /tmp/img1.snap1
  92 sudo dd if=/dev/rbd/rbd/testimg1 of=/tmp/img1.export
  93 cmp /tmp/img1 /tmp/img1.export
  94
  95 # zeros are returned if an image or a snapshot is removed
  96 expect_false cmp -n 76800000 /dev/rbd/rbd/testimg1@snap1 /dev/zero
  97 rbd snap rm --snap=snap1 testimg1
  98 cmp -n 76800000 /dev/rbd/rbd/testimg1@snap1 /dev/zero
  99
 100 echo OK