zfSnap_fix

This commit is contained in:
Milan Meduna 2019-07-09 21:42:42 +02:00
parent 0d159e8a72
commit 4c60744155
7 changed files with 1311 additions and 2 deletions

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@ -1,3 +1 @@
My zfs builds and simple script to install it on ubuntu (tested on Bionic and Disco) My zfs builds and simple script to install it on ubuntu (tested on Bionic and Disco)
Known bugs: Breaks zfSnap dependencies, it will be fixed soon

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@ -4,3 +4,5 @@ apt-get install python3 python3-dev python3-setuptools python3-cffi dkms python3
apt remove "zfs*" -y apt remove "zfs*" -y
apt autoremove -y apt autoremove -y
for file in *$1*.deb; do sudo gdebi -q --non-interactive $file; done for file in *$1*.deb; do sudo gdebi -q --non-interactive $file; done
cp zfSnap /usr/sbin/zfSnap
chmod 755 /usr/sbin/zfSnap

435
pkgs-0.8.0-1/zfSnap Executable file
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@ -0,0 +1,435 @@
#!/bin/sh
# "THE BEER-WARE LICENSE":
# <graudeejs@yandex.com> wrote this file. As long as you retain this notice you
# can do whatever you want with this stuff. If we meet some day, and you think
# this stuff is worth it, you can buy me a beer in return. Aldis Berjoza
# wiki: https://github.com/graudeejs/zfSnap/wiki
# repository: https://github.com/graudeejs/zfSnap
# Bug tracking: https://github.com/graudeejs/zfSnap/issues
readonly VERSION=1.11.1
ESED='sed -E'
zfs_cmd='/sbin/zfs'
zpool_cmd='/sbin/zpool'
note() {
echo "NOTE: $*" > /dev/stderr
}
err() {
echo "ERROR: $*" > /dev/stderr
}
fatal() {
echo "FATAL: $*" > /dev/stderr
exit 1
}
warn() {
echo "WARNING: $*" > /dev/stderr
}
OS=`uname`
case $OS in
'FreeBSD')
;;
'SunOS')
ESED='sed -r'
if [ -d "/usr/gnu/bin" ]; then
export PATH="/usr/gnu/bin:$PATH"
else
fatal "GNU bin direcotry not found"
fi
;;
'Linux'|'GNU/kFreeBSD')
ESED='sed -r'
;;
'Darwin')
zfs_cmd='/usr/sbin/zfs'
zpool_cmd='/usr/sbin/zpool'
;;
*)
fatal "Your OS isn't supported"
;;
esac
is_true() {
case "$1" in
[Tt][Rr][Uu][Ee])
return 0
;;
[Ff][Aa][Ll][Ss][Ee])
return 1
;;
*)
fatal "must be yes or no"
;;
esac
}
is_false() {
is_true $1 && return 1 || return 0
}
s2time() {
# convert seconds to human readable time
xtime=$1
years=$(($xtime / 31536000))
xtime=$(($xtime % 31536000))
[ ${years:-0} -gt 0 ] && years="${years}y" || years=""
months=$(($xtime / 2592000))
xtime=$(($xtime % 2592000))
[ ${months:-0} -gt 0 ] && months="${months}m" || months=""
days=$(($xtime / 86400))
xtime=$(($xtime % 86400))
[ ${days:-0} -gt 0 ] && days="${days}d" || days=""
hours=$(($xtime / 3600))
xtime=$(($xtime % 3600))
[ ${hours:-0} -gt 0 ] && hours="${hours}h" || hours=""
minutes=$(($xtime / 60))
[ ${minutes:-0} -gt 0 ] && minutes="${minutes}M" || minutes=""
seconds=$(($xtime % 60))
[ ${seconds:-0} -gt 0 ] && seconds="${seconds}s" || seconds=""
echo "${years}${months}${days}${hours}${minutes}${seconds}"
}
time2s() {
# convert human readable time to seconds
echo "$1" | sed -e 's/y/*31536000+/g; s/m/*2592000+/g; s/w/*604800+/g; s/d/*86400+/g; s/h/*3600+/g; s/M/*60+/g; s/s//g; s/\+$//' | bc -l
}
date2timestamp() {
date_normal="`echo $1 | $ESED -e 's/\./:/g; s/(20[0-9][0-9]-[01][0-9]-[0-3][0-9])_([0-2][0-9]:[0-5][0-9]:[0-5][0-9])/\1 \2/'`"
case $OS in
'FreeBSD' | 'Darwin' )
date -j -f '%Y-%m-%d %H:%M:%S' "$date_normal" '+%s'
;;
*)
date --date "$date_normal" '+%s'
;;
esac
}
help() {
cat << EOF
${0##*/} v${VERSION} by Aldis Berjoza
Syntax:
${0##*/} [ generic options ] [ options ] zpool/filesystem ...
GENERIC OPTIONS:
-d = Delete old snapshots
-e = Return number of failed actions as exit code.
-F age = Force delete all snapshots exceeding age
-n = Only show actions that would be performed
-s = Don't do anything on pools running resilver
-S = Don't do anything on pools running scrub
-v = Verbose output
-z = Force new snapshots to have 00 seconds!
-zpool28fix = Workaround for zpool v28 zfs destroy -r bug
OPTIONS:
-a ttl = Set how long snapshot should be kept
-D pool/fs = Delete all zfSnap snapshots of specific pool/fs (ignore ttl)
-p prefix = Use prefix for snapshots after this switch
-P = Don't use prefix for snapshots after this switch
-r = Create recursive snapshots for all zfs file systems that
fallow this switch
-R = Create non-recursive snapshots for all zfs file systems that
fallow this switch
LINKS:
wiki: https://github.com/graudeejs/zfSnap/wiki
repository: https://github.com/graudeejs/zfSnap
Bug tracking: https://github.com/graudeejs/zfSnap/issues
EOF
exit 0
}
rm_zfs_snapshot() {
if is_true $zpool28fix && [ "$1" = '-r' ]; then
# get rid of '-r' parameter
rm_zfs_snapshot $2
return
fi
if [ "$1" = '-r' ]; then
skip_pool $2 || return 1
else
skip_pool $1 || return 1
fi
zfs_destroy="$zfs_cmd destroy $*"
# hardening: make really, really sure we are deleting snapshot
if echo $i | grep -q -e '@'; then
if is_false $dry_run; then
if $zfs_destroy > /dev/stderr; then
is_true $verbose && echo "$zfs_destroy ... DONE"
else
is_true $verbose && echo "$zfs_destroy ... FAIL"
is_true $count_failures && failures=$(($failures + 1))
fi
else
echo "$zfs_destroy"
fi
else
echo "FATAL: trying to delete zfs pool or filesystem? WTF?" > /dev/stderr
echo " This is bug, we definitely don't want that." > /dev/stderr
echo " Please report it to https://github.com/graudeejs/zfSnap/issues" > /dev/stderr
echo " Don't panic, nothing was deleted :)" > /dev/stderr
is_true $count_failures && [ $failures -gt 0 ] && exit $failures
exit 1
fi
}
skip_pool() {
# more like skip pool???
if is_true $scrub_skip; then
for i in $scrub_pools; do
if [ `echo $1 | sed -e 's#/.*$##; s/@.*//'` = $i ]; then
is_true $verbose && note "No action will be performed on '$1'. Scrub is running on pool."
return 1
fi
done
fi
if is_true $resilver_skip; then
for i in $resilver_pools; do
if [ `echo $1 | sed -e 's#/.*$##; s/@.*//'` = $i ]; then
is_true $verbose && note "No action will be performed on '$1'. Resilver is running on pool."
return 1
fi
done
fi
return 0
}
[ $# = 0 ] && help
[ "$1" = '-h' -o $1 = "--help" ] && help
ttl='1m' # default snapshot ttl
force_delete_snapshots_age=-1 # Delete snapshots older than x seconds. -1 means NO
delete_snapshots="false" # Delete old snapshots?
verbose="false" # Verbose output?
dry_run="false" # Dry run?
prefx="" # Default prefix
prefxes="" # List of prefixes
delete_specific_fs_snapshots="" # List of specific snapshots to delete
delete_specific_fs_snapshots_recursively="" # List of specific snapshots to delete recursively
zero_seconds="false" # Should new snapshots always have 00 seconds?
scrub_pools="" # List of pools that are in precess of scrubing
resilver_pools="" # List of pools that are in process of resilvering
pools="" # List of pools
get_pools="false" # Should I get list of pools?
resilver_skip="false" # Should I skip processing pools in process of resilvering.
scrub_skip="false" # Should I skip processing pools in process of scrubing.
failures=0 # Number of failed actions.
count_failures="false" # Should I coundt failed actions?
zpool28fix="false" # Workaround for zpool v28 zfs destroy -r bug
while [ "$1" = '-d' -o "$1" = '-v' -o "$1" = '-n' -o "$1" = '-F' -o "$1" = '-z' -o "$1" = '-s' -o "$1" = '-S' -o "$1" = '-e' -o "$1" = '-zpool28fix' ]; do
case "$1" in
'-d')
delete_snapshots="true"
shift
;;
'-v')
verbose="true"
shift
;;
'-n')
dry_run="true"
shift
;;
'-F')
force_delete_snapshots_age=`time2s $2`
shift 2
;;
'-z')
zero_seconds="true"
shift
;;
'-s')
get_pools="true"
resilver_skip="true"
shift
;;
'-S')
get_pools="true"
scrub_skip="true"
shift
;;
'-e')
count_failures="true"
shift
;;
'-zpool28fix')
zpool28fix="true"
shift
;;
esac
done
if is_true $get_pools; then
pools=`$zpool_cmd list -H -o name`
for i in $pools; do
if is_true $resilver_skip; then
$zpool_cmd status $i | grep -q -e 'resilver in progress' && resilver_pools="$resilver_pools $i"
fi
if is_true $scrub_skip; then
$zpool_cmd status $i | grep -q -e 'scrub in progress' && scrub_pools="$scrub_pools $i"
fi
done
fi
readonly date_pattern='20[0-9][0-9]-[01][0-9]-[0-3][0-9]_[0-2][0-9]\.[0-5][0-9]\.[0-5][0-9]'
if is_false $zero_seconds; then
readonly tfrmt='%Y-%m-%d_%H.%M.%S'
else
readonly tfrmt='%Y-%m-%d_%H.%M.00'
fi
readonly htime_pattern='([0-9]+y)?([0-9]+m)?([0-9]+w)?([0-9]+d)?([0-9]+h)?([0-9]+M)?([0-9]+[s]?)?'
is_true $dry_run && zfs_list=`$zfs_cmd list -H -o name`
ntime=`date "+$tfrmt"`
while [ "$1" ]; do
while [ "$1" = '-r' -o "$1" = '-R' -o "$1" = '-a' -o "$1" = '-p' -o "$1" = '-P' -o "$1" = '-D' ]; do
case "$1" in
'-r')
zopt='-r'
shift
;;
'-R')
zopt=''
shift
;;
'-a')
ttl="$2"
echo "$ttl" | grep -q -E -e "^[0-9]+$" && ttl=`s2time $ttl`
shift 2
;;
'-p')
prefx="$2"
prefxes="$prefxes|$prefx"
shift 2
;;
'-P')
prefx=""
shift
;;
'-D')
if [ "$zopt" != '-r' ]; then
delete_specific_fs_snapshots="$delete_specific_fs_snapshots $2"
else
delete_specific_fs_snapshots_recursively="$delete_specific_fs_snapshots_recursively $2"
fi
shift 2
;;
esac
done
# create snapshots
if [ $1 ]; then
if skip_pool $1; then
if [ $1 = `echo $1 | $ESED -e 's/^-//'` ]; then
zfs_snapshot="$zfs_cmd snapshot $zopt $1@${prefx}${ntime}--${ttl}${postfx}"
if is_false $dry_run; then
if $zfs_snapshot > /dev/stderr; then
is_true $verbose && echo "$zfs_snapshot ... DONE"
else
is_true $verbose && echo "$zfs_snapshot ... FAIL"
is_true $count_failures && failures=$(($failures + 1))
fi
else
printf "%s\n" $zfs_list | grep -m 1 -q -E -e "^$1$" \
&& echo "$zfs_snapshot" \
|| err "Looks like zfs filesystem '$1' doesn't exist"
fi
else
warn "'$1' doesn't look like valid argument. Ignoring"
fi
fi
shift
fi
done
prefxes=`echo "$prefxes" | sed -e 's/^\|//'`
# delete snapshots
if is_true $delete_snapshots || [ $force_delete_snapshots_age -ne -1 ]; then
if is_false $zpool28fix; then
zfs_snapshots=`$zfs_cmd list -H -o name -t snapshot | grep -E -e "^.*@(${prefxes})?${date_pattern}--${htime_pattern}$" | sed -e 's#/.*@#@#'`
else
zfs_snapshots=`$zfs_cmd list -H -o name -t snapshot | grep -E -e "^.*@(${prefxes})?${date_pattern}--${htime_pattern}$"`
fi
current_time=`date +%s`
for i in `echo $zfs_snapshots | xargs printf "%s\n" | $ESED -e "s/^.*@//" | sort -u`; do
create_time=$(date2timestamp `echo "$i" | $ESED -e "s/--${htime_pattern}$//; s/^(${prefxes})?//"`)
if is_true $delete_snapshots; then
stay_time=$(time2s `echo $i | $ESED -e "s/^(${prefxes})?${date_pattern}--//"`)
[ $current_time -gt $(($create_time + $stay_time)) ] \
&& rm_snapshot_pattern="$rm_snapshot_pattern $i"
fi
if [ "$force_delete_snapshots_age" -ne -1 ]; then
[ $current_time -gt $(($create_time + $force_delete_snapshots_age)) ] \
&& rm_snapshot_pattern="$rm_snapshot_pattern $i"
fi
done
if [ "$rm_snapshot_pattern" != '' ]; then
rm_snapshots=$(echo $zfs_snapshots | xargs printf '%s\n' | grep -E -e "@`echo $rm_snapshot_pattern | sed -e 's/ /|/g'`" | sort -u)
for i in $rm_snapshots; do
rm_zfs_snapshot -r $i
done
fi
fi
# delete all snap
if [ "$delete_specific_fs_snapshots" != '' ]; then
rm_snapshots=`$zfs_cmd list -H -o name -t snapshot | grep -E -e "^($(echo "$delete_specific_fs_snapshots" | tr ' ' '|'))@(${prefxes})?${date_pattern}--${htime_pattern}$"`
for i in $rm_snapshots; do
rm_zfs_snapshot $i
done
fi
if [ "$delete_specific_fs_snapshots_recursively" != '' ]; then
rm_snapshots=`$zfs_cmd list -H -o name -t snapshot | grep -E -e "^($(echo "$delete_specific_fs_snapshots_recursively" | tr ' ' '|'))@(${prefxes})?${date_pattern}--${htime_pattern}$"`
for i in $rm_snapshots; do
rm_zfs_snapshot -r $i
done
fi
is_true $count_failures && exit $failures
exit 0
# vim: set ts=4 sw=4 expandtab:

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@ -4,3 +4,5 @@ apt-get install python3 python3-dev python3-setuptools python3-cffi dkms python3
apt remove "zfs*" -y apt remove "zfs*" -y
apt autoremove -y apt autoremove -y
for file in *$1*.deb; do sudo gdebi -q --non-interactive $file; done for file in *$1*.deb; do sudo gdebi -q --non-interactive $file; done
cp zfSnap /usr/sbin/zfSnap
chmod 755 /usr/sbin/zfSnap

435
pkgs-0.8.1-1/zfSnap Executable file
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@ -0,0 +1,435 @@
#!/bin/sh
# "THE BEER-WARE LICENSE":
# <graudeejs@yandex.com> wrote this file. As long as you retain this notice you
# can do whatever you want with this stuff. If we meet some day, and you think
# this stuff is worth it, you can buy me a beer in return. Aldis Berjoza
# wiki: https://github.com/graudeejs/zfSnap/wiki
# repository: https://github.com/graudeejs/zfSnap
# Bug tracking: https://github.com/graudeejs/zfSnap/issues
readonly VERSION=1.11.1
ESED='sed -E'
zfs_cmd='/sbin/zfs'
zpool_cmd='/sbin/zpool'
note() {
echo "NOTE: $*" > /dev/stderr
}
err() {
echo "ERROR: $*" > /dev/stderr
}
fatal() {
echo "FATAL: $*" > /dev/stderr
exit 1
}
warn() {
echo "WARNING: $*" > /dev/stderr
}
OS=`uname`
case $OS in
'FreeBSD')
;;
'SunOS')
ESED='sed -r'
if [ -d "/usr/gnu/bin" ]; then
export PATH="/usr/gnu/bin:$PATH"
else
fatal "GNU bin direcotry not found"
fi
;;
'Linux'|'GNU/kFreeBSD')
ESED='sed -r'
;;
'Darwin')
zfs_cmd='/usr/sbin/zfs'
zpool_cmd='/usr/sbin/zpool'
;;
*)
fatal "Your OS isn't supported"
;;
esac
is_true() {
case "$1" in
[Tt][Rr][Uu][Ee])
return 0
;;
[Ff][Aa][Ll][Ss][Ee])
return 1
;;
*)
fatal "must be yes or no"
;;
esac
}
is_false() {
is_true $1 && return 1 || return 0
}
s2time() {
# convert seconds to human readable time
xtime=$1
years=$(($xtime / 31536000))
xtime=$(($xtime % 31536000))
[ ${years:-0} -gt 0 ] && years="${years}y" || years=""
months=$(($xtime / 2592000))
xtime=$(($xtime % 2592000))
[ ${months:-0} -gt 0 ] && months="${months}m" || months=""
days=$(($xtime / 86400))
xtime=$(($xtime % 86400))
[ ${days:-0} -gt 0 ] && days="${days}d" || days=""
hours=$(($xtime / 3600))
xtime=$(($xtime % 3600))
[ ${hours:-0} -gt 0 ] && hours="${hours}h" || hours=""
minutes=$(($xtime / 60))
[ ${minutes:-0} -gt 0 ] && minutes="${minutes}M" || minutes=""
seconds=$(($xtime % 60))
[ ${seconds:-0} -gt 0 ] && seconds="${seconds}s" || seconds=""
echo "${years}${months}${days}${hours}${minutes}${seconds}"
}
time2s() {
# convert human readable time to seconds
echo "$1" | sed -e 's/y/*31536000+/g; s/m/*2592000+/g; s/w/*604800+/g; s/d/*86400+/g; s/h/*3600+/g; s/M/*60+/g; s/s//g; s/\+$//' | bc -l
}
date2timestamp() {
date_normal="`echo $1 | $ESED -e 's/\./:/g; s/(20[0-9][0-9]-[01][0-9]-[0-3][0-9])_([0-2][0-9]:[0-5][0-9]:[0-5][0-9])/\1 \2/'`"
case $OS in
'FreeBSD' | 'Darwin' )
date -j -f '%Y-%m-%d %H:%M:%S' "$date_normal" '+%s'
;;
*)
date --date "$date_normal" '+%s'
;;
esac
}
help() {
cat << EOF
${0##*/} v${VERSION} by Aldis Berjoza
Syntax:
${0##*/} [ generic options ] [ options ] zpool/filesystem ...
GENERIC OPTIONS:
-d = Delete old snapshots
-e = Return number of failed actions as exit code.
-F age = Force delete all snapshots exceeding age
-n = Only show actions that would be performed
-s = Don't do anything on pools running resilver
-S = Don't do anything on pools running scrub
-v = Verbose output
-z = Force new snapshots to have 00 seconds!
-zpool28fix = Workaround for zpool v28 zfs destroy -r bug
OPTIONS:
-a ttl = Set how long snapshot should be kept
-D pool/fs = Delete all zfSnap snapshots of specific pool/fs (ignore ttl)
-p prefix = Use prefix for snapshots after this switch
-P = Don't use prefix for snapshots after this switch
-r = Create recursive snapshots for all zfs file systems that
fallow this switch
-R = Create non-recursive snapshots for all zfs file systems that
fallow this switch
LINKS:
wiki: https://github.com/graudeejs/zfSnap/wiki
repository: https://github.com/graudeejs/zfSnap
Bug tracking: https://github.com/graudeejs/zfSnap/issues
EOF
exit 0
}
rm_zfs_snapshot() {
if is_true $zpool28fix && [ "$1" = '-r' ]; then
# get rid of '-r' parameter
rm_zfs_snapshot $2
return
fi
if [ "$1" = '-r' ]; then
skip_pool $2 || return 1
else
skip_pool $1 || return 1
fi
zfs_destroy="$zfs_cmd destroy $*"
# hardening: make really, really sure we are deleting snapshot
if echo $i | grep -q -e '@'; then
if is_false $dry_run; then
if $zfs_destroy > /dev/stderr; then
is_true $verbose && echo "$zfs_destroy ... DONE"
else
is_true $verbose && echo "$zfs_destroy ... FAIL"
is_true $count_failures && failures=$(($failures + 1))
fi
else
echo "$zfs_destroy"
fi
else
echo "FATAL: trying to delete zfs pool or filesystem? WTF?" > /dev/stderr
echo " This is bug, we definitely don't want that." > /dev/stderr
echo " Please report it to https://github.com/graudeejs/zfSnap/issues" > /dev/stderr
echo " Don't panic, nothing was deleted :)" > /dev/stderr
is_true $count_failures && [ $failures -gt 0 ] && exit $failures
exit 1
fi
}
skip_pool() {
# more like skip pool???
if is_true $scrub_skip; then
for i in $scrub_pools; do
if [ `echo $1 | sed -e 's#/.*$##; s/@.*//'` = $i ]; then
is_true $verbose && note "No action will be performed on '$1'. Scrub is running on pool."
return 1
fi
done
fi
if is_true $resilver_skip; then
for i in $resilver_pools; do
if [ `echo $1 | sed -e 's#/.*$##; s/@.*//'` = $i ]; then
is_true $verbose && note "No action will be performed on '$1'. Resilver is running on pool."
return 1
fi
done
fi
return 0
}
[ $# = 0 ] && help
[ "$1" = '-h' -o $1 = "--help" ] && help
ttl='1m' # default snapshot ttl
force_delete_snapshots_age=-1 # Delete snapshots older than x seconds. -1 means NO
delete_snapshots="false" # Delete old snapshots?
verbose="false" # Verbose output?
dry_run="false" # Dry run?
prefx="" # Default prefix
prefxes="" # List of prefixes
delete_specific_fs_snapshots="" # List of specific snapshots to delete
delete_specific_fs_snapshots_recursively="" # List of specific snapshots to delete recursively
zero_seconds="false" # Should new snapshots always have 00 seconds?
scrub_pools="" # List of pools that are in precess of scrubing
resilver_pools="" # List of pools that are in process of resilvering
pools="" # List of pools
get_pools="false" # Should I get list of pools?
resilver_skip="false" # Should I skip processing pools in process of resilvering.
scrub_skip="false" # Should I skip processing pools in process of scrubing.
failures=0 # Number of failed actions.
count_failures="false" # Should I coundt failed actions?
zpool28fix="false" # Workaround for zpool v28 zfs destroy -r bug
while [ "$1" = '-d' -o "$1" = '-v' -o "$1" = '-n' -o "$1" = '-F' -o "$1" = '-z' -o "$1" = '-s' -o "$1" = '-S' -o "$1" = '-e' -o "$1" = '-zpool28fix' ]; do
case "$1" in
'-d')
delete_snapshots="true"
shift
;;
'-v')
verbose="true"
shift
;;
'-n')
dry_run="true"
shift
;;
'-F')
force_delete_snapshots_age=`time2s $2`
shift 2
;;
'-z')
zero_seconds="true"
shift
;;
'-s')
get_pools="true"
resilver_skip="true"
shift
;;
'-S')
get_pools="true"
scrub_skip="true"
shift
;;
'-e')
count_failures="true"
shift
;;
'-zpool28fix')
zpool28fix="true"
shift
;;
esac
done
if is_true $get_pools; then
pools=`$zpool_cmd list -H -o name`
for i in $pools; do
if is_true $resilver_skip; then
$zpool_cmd status $i | grep -q -e 'resilver in progress' && resilver_pools="$resilver_pools $i"
fi
if is_true $scrub_skip; then
$zpool_cmd status $i | grep -q -e 'scrub in progress' && scrub_pools="$scrub_pools $i"
fi
done
fi
readonly date_pattern='20[0-9][0-9]-[01][0-9]-[0-3][0-9]_[0-2][0-9]\.[0-5][0-9]\.[0-5][0-9]'
if is_false $zero_seconds; then
readonly tfrmt='%Y-%m-%d_%H.%M.%S'
else
readonly tfrmt='%Y-%m-%d_%H.%M.00'
fi
readonly htime_pattern='([0-9]+y)?([0-9]+m)?([0-9]+w)?([0-9]+d)?([0-9]+h)?([0-9]+M)?([0-9]+[s]?)?'
is_true $dry_run && zfs_list=`$zfs_cmd list -H -o name`
ntime=`date "+$tfrmt"`
while [ "$1" ]; do
while [ "$1" = '-r' -o "$1" = '-R' -o "$1" = '-a' -o "$1" = '-p' -o "$1" = '-P' -o "$1" = '-D' ]; do
case "$1" in
'-r')
zopt='-r'
shift
;;
'-R')
zopt=''
shift
;;
'-a')
ttl="$2"
echo "$ttl" | grep -q -E -e "^[0-9]+$" && ttl=`s2time $ttl`
shift 2
;;
'-p')
prefx="$2"
prefxes="$prefxes|$prefx"
shift 2
;;
'-P')
prefx=""
shift
;;
'-D')
if [ "$zopt" != '-r' ]; then
delete_specific_fs_snapshots="$delete_specific_fs_snapshots $2"
else
delete_specific_fs_snapshots_recursively="$delete_specific_fs_snapshots_recursively $2"
fi
shift 2
;;
esac
done
# create snapshots
if [ $1 ]; then
if skip_pool $1; then
if [ $1 = `echo $1 | $ESED -e 's/^-//'` ]; then
zfs_snapshot="$zfs_cmd snapshot $zopt $1@${prefx}${ntime}--${ttl}${postfx}"
if is_false $dry_run; then
if $zfs_snapshot > /dev/stderr; then
is_true $verbose && echo "$zfs_snapshot ... DONE"
else
is_true $verbose && echo "$zfs_snapshot ... FAIL"
is_true $count_failures && failures=$(($failures + 1))
fi
else
printf "%s\n" $zfs_list | grep -m 1 -q -E -e "^$1$" \
&& echo "$zfs_snapshot" \
|| err "Looks like zfs filesystem '$1' doesn't exist"
fi
else
warn "'$1' doesn't look like valid argument. Ignoring"
fi
fi
shift
fi
done
prefxes=`echo "$prefxes" | sed -e 's/^\|//'`
# delete snapshots
if is_true $delete_snapshots || [ $force_delete_snapshots_age -ne -1 ]; then
if is_false $zpool28fix; then
zfs_snapshots=`$zfs_cmd list -H -o name -t snapshot | grep -E -e "^.*@(${prefxes})?${date_pattern}--${htime_pattern}$" | sed -e 's#/.*@#@#'`
else
zfs_snapshots=`$zfs_cmd list -H -o name -t snapshot | grep -E -e "^.*@(${prefxes})?${date_pattern}--${htime_pattern}$"`
fi
current_time=`date +%s`
for i in `echo $zfs_snapshots | xargs printf "%s\n" | $ESED -e "s/^.*@//" | sort -u`; do
create_time=$(date2timestamp `echo "$i" | $ESED -e "s/--${htime_pattern}$//; s/^(${prefxes})?//"`)
if is_true $delete_snapshots; then
stay_time=$(time2s `echo $i | $ESED -e "s/^(${prefxes})?${date_pattern}--//"`)
[ $current_time -gt $(($create_time + $stay_time)) ] \
&& rm_snapshot_pattern="$rm_snapshot_pattern $i"
fi
if [ "$force_delete_snapshots_age" -ne -1 ]; then
[ $current_time -gt $(($create_time + $force_delete_snapshots_age)) ] \
&& rm_snapshot_pattern="$rm_snapshot_pattern $i"
fi
done
if [ "$rm_snapshot_pattern" != '' ]; then
rm_snapshots=$(echo $zfs_snapshots | xargs printf '%s\n' | grep -E -e "@`echo $rm_snapshot_pattern | sed -e 's/ /|/g'`" | sort -u)
for i in $rm_snapshots; do
rm_zfs_snapshot -r $i
done
fi
fi
# delete all snap
if [ "$delete_specific_fs_snapshots" != '' ]; then
rm_snapshots=`$zfs_cmd list -H -o name -t snapshot | grep -E -e "^($(echo "$delete_specific_fs_snapshots" | tr ' ' '|'))@(${prefxes})?${date_pattern}--${htime_pattern}$"`
for i in $rm_snapshots; do
rm_zfs_snapshot $i
done
fi
if [ "$delete_specific_fs_snapshots_recursively" != '' ]; then
rm_snapshots=`$zfs_cmd list -H -o name -t snapshot | grep -E -e "^($(echo "$delete_specific_fs_snapshots_recursively" | tr ' ' '|'))@(${prefxes})?${date_pattern}--${htime_pattern}$"`
for i in $rm_snapshots; do
rm_zfs_snapshot -r $i
done
fi
is_true $count_failures && exit $failures
exit 0
# vim: set ts=4 sw=4 expandtab:

View File

@ -4,3 +4,5 @@ apt-get install python3 python3-dev python3-setuptools python3-cffi dkms python3
apt remove "zfs*" -y apt remove "zfs*" -y
apt autoremove -y apt autoremove -y
for file in *$1*.deb; do sudo gdebi -q --non-interactive $file; done for file in *$1*.deb; do sudo gdebi -q --non-interactive $file; done
cp zfSnap /usr/sbin/zfSnap
chmod 755 /usr/sbin/zfSnap

435
zfSnap Executable file
View File

@ -0,0 +1,435 @@
#!/bin/sh
# "THE BEER-WARE LICENSE":
# <graudeejs@yandex.com> wrote this file. As long as you retain this notice you
# can do whatever you want with this stuff. If we meet some day, and you think
# this stuff is worth it, you can buy me a beer in return. Aldis Berjoza
# wiki: https://github.com/graudeejs/zfSnap/wiki
# repository: https://github.com/graudeejs/zfSnap
# Bug tracking: https://github.com/graudeejs/zfSnap/issues
readonly VERSION=1.11.1
ESED='sed -E'
zfs_cmd='/sbin/zfs'
zpool_cmd='/sbin/zpool'
note() {
echo "NOTE: $*" > /dev/stderr
}
err() {
echo "ERROR: $*" > /dev/stderr
}
fatal() {
echo "FATAL: $*" > /dev/stderr
exit 1
}
warn() {
echo "WARNING: $*" > /dev/stderr
}
OS=`uname`
case $OS in
'FreeBSD')
;;
'SunOS')
ESED='sed -r'
if [ -d "/usr/gnu/bin" ]; then
export PATH="/usr/gnu/bin:$PATH"
else
fatal "GNU bin direcotry not found"
fi
;;
'Linux'|'GNU/kFreeBSD')
ESED='sed -r'
;;
'Darwin')
zfs_cmd='/usr/sbin/zfs'
zpool_cmd='/usr/sbin/zpool'
;;
*)
fatal "Your OS isn't supported"
;;
esac
is_true() {
case "$1" in
[Tt][Rr][Uu][Ee])
return 0
;;
[Ff][Aa][Ll][Ss][Ee])
return 1
;;
*)
fatal "must be yes or no"
;;
esac
}
is_false() {
is_true $1 && return 1 || return 0
}
s2time() {
# convert seconds to human readable time
xtime=$1
years=$(($xtime / 31536000))
xtime=$(($xtime % 31536000))
[ ${years:-0} -gt 0 ] && years="${years}y" || years=""
months=$(($xtime / 2592000))
xtime=$(($xtime % 2592000))
[ ${months:-0} -gt 0 ] && months="${months}m" || months=""
days=$(($xtime / 86400))
xtime=$(($xtime % 86400))
[ ${days:-0} -gt 0 ] && days="${days}d" || days=""
hours=$(($xtime / 3600))
xtime=$(($xtime % 3600))
[ ${hours:-0} -gt 0 ] && hours="${hours}h" || hours=""
minutes=$(($xtime / 60))
[ ${minutes:-0} -gt 0 ] && minutes="${minutes}M" || minutes=""
seconds=$(($xtime % 60))
[ ${seconds:-0} -gt 0 ] && seconds="${seconds}s" || seconds=""
echo "${years}${months}${days}${hours}${minutes}${seconds}"
}
time2s() {
# convert human readable time to seconds
echo "$1" | sed -e 's/y/*31536000+/g; s/m/*2592000+/g; s/w/*604800+/g; s/d/*86400+/g; s/h/*3600+/g; s/M/*60+/g; s/s//g; s/\+$//' | bc -l
}
date2timestamp() {
date_normal="`echo $1 | $ESED -e 's/\./:/g; s/(20[0-9][0-9]-[01][0-9]-[0-3][0-9])_([0-2][0-9]:[0-5][0-9]:[0-5][0-9])/\1 \2/'`"
case $OS in
'FreeBSD' | 'Darwin' )
date -j -f '%Y-%m-%d %H:%M:%S' "$date_normal" '+%s'
;;
*)
date --date "$date_normal" '+%s'
;;
esac
}
help() {
cat << EOF
${0##*/} v${VERSION} by Aldis Berjoza
Syntax:
${0##*/} [ generic options ] [ options ] zpool/filesystem ...
GENERIC OPTIONS:
-d = Delete old snapshots
-e = Return number of failed actions as exit code.
-F age = Force delete all snapshots exceeding age
-n = Only show actions that would be performed
-s = Don't do anything on pools running resilver
-S = Don't do anything on pools running scrub
-v = Verbose output
-z = Force new snapshots to have 00 seconds!
-zpool28fix = Workaround for zpool v28 zfs destroy -r bug
OPTIONS:
-a ttl = Set how long snapshot should be kept
-D pool/fs = Delete all zfSnap snapshots of specific pool/fs (ignore ttl)
-p prefix = Use prefix for snapshots after this switch
-P = Don't use prefix for snapshots after this switch
-r = Create recursive snapshots for all zfs file systems that
fallow this switch
-R = Create non-recursive snapshots for all zfs file systems that
fallow this switch
LINKS:
wiki: https://github.com/graudeejs/zfSnap/wiki
repository: https://github.com/graudeejs/zfSnap
Bug tracking: https://github.com/graudeejs/zfSnap/issues
EOF
exit 0
}
rm_zfs_snapshot() {
if is_true $zpool28fix && [ "$1" = '-r' ]; then
# get rid of '-r' parameter
rm_zfs_snapshot $2
return
fi
if [ "$1" = '-r' ]; then
skip_pool $2 || return 1
else
skip_pool $1 || return 1
fi
zfs_destroy="$zfs_cmd destroy $*"
# hardening: make really, really sure we are deleting snapshot
if echo $i | grep -q -e '@'; then
if is_false $dry_run; then
if $zfs_destroy > /dev/stderr; then
is_true $verbose && echo "$zfs_destroy ... DONE"
else
is_true $verbose && echo "$zfs_destroy ... FAIL"
is_true $count_failures && failures=$(($failures + 1))
fi
else
echo "$zfs_destroy"
fi
else
echo "FATAL: trying to delete zfs pool or filesystem? WTF?" > /dev/stderr
echo " This is bug, we definitely don't want that." > /dev/stderr
echo " Please report it to https://github.com/graudeejs/zfSnap/issues" > /dev/stderr
echo " Don't panic, nothing was deleted :)" > /dev/stderr
is_true $count_failures && [ $failures -gt 0 ] && exit $failures
exit 1
fi
}
skip_pool() {
# more like skip pool???
if is_true $scrub_skip; then
for i in $scrub_pools; do
if [ `echo $1 | sed -e 's#/.*$##; s/@.*//'` = $i ]; then
is_true $verbose && note "No action will be performed on '$1'. Scrub is running on pool."
return 1
fi
done
fi
if is_true $resilver_skip; then
for i in $resilver_pools; do
if [ `echo $1 | sed -e 's#/.*$##; s/@.*//'` = $i ]; then
is_true $verbose && note "No action will be performed on '$1'. Resilver is running on pool."
return 1
fi
done
fi
return 0
}
[ $# = 0 ] && help
[ "$1" = '-h' -o $1 = "--help" ] && help
ttl='1m' # default snapshot ttl
force_delete_snapshots_age=-1 # Delete snapshots older than x seconds. -1 means NO
delete_snapshots="false" # Delete old snapshots?
verbose="false" # Verbose output?
dry_run="false" # Dry run?
prefx="" # Default prefix
prefxes="" # List of prefixes
delete_specific_fs_snapshots="" # List of specific snapshots to delete
delete_specific_fs_snapshots_recursively="" # List of specific snapshots to delete recursively
zero_seconds="false" # Should new snapshots always have 00 seconds?
scrub_pools="" # List of pools that are in precess of scrubing
resilver_pools="" # List of pools that are in process of resilvering
pools="" # List of pools
get_pools="false" # Should I get list of pools?
resilver_skip="false" # Should I skip processing pools in process of resilvering.
scrub_skip="false" # Should I skip processing pools in process of scrubing.
failures=0 # Number of failed actions.
count_failures="false" # Should I coundt failed actions?
zpool28fix="false" # Workaround for zpool v28 zfs destroy -r bug
while [ "$1" = '-d' -o "$1" = '-v' -o "$1" = '-n' -o "$1" = '-F' -o "$1" = '-z' -o "$1" = '-s' -o "$1" = '-S' -o "$1" = '-e' -o "$1" = '-zpool28fix' ]; do
case "$1" in
'-d')
delete_snapshots="true"
shift
;;
'-v')
verbose="true"
shift
;;
'-n')
dry_run="true"
shift
;;
'-F')
force_delete_snapshots_age=`time2s $2`
shift 2
;;
'-z')
zero_seconds="true"
shift
;;
'-s')
get_pools="true"
resilver_skip="true"
shift
;;
'-S')
get_pools="true"
scrub_skip="true"
shift
;;
'-e')
count_failures="true"
shift
;;
'-zpool28fix')
zpool28fix="true"
shift
;;
esac
done
if is_true $get_pools; then
pools=`$zpool_cmd list -H -o name`
for i in $pools; do
if is_true $resilver_skip; then
$zpool_cmd status $i | grep -q -e 'resilver in progress' && resilver_pools="$resilver_pools $i"
fi
if is_true $scrub_skip; then
$zpool_cmd status $i | grep -q -e 'scrub in progress' && scrub_pools="$scrub_pools $i"
fi
done
fi
readonly date_pattern='20[0-9][0-9]-[01][0-9]-[0-3][0-9]_[0-2][0-9]\.[0-5][0-9]\.[0-5][0-9]'
if is_false $zero_seconds; then
readonly tfrmt='%Y-%m-%d_%H.%M.%S'
else
readonly tfrmt='%Y-%m-%d_%H.%M.00'
fi
readonly htime_pattern='([0-9]+y)?([0-9]+m)?([0-9]+w)?([0-9]+d)?([0-9]+h)?([0-9]+M)?([0-9]+[s]?)?'
is_true $dry_run && zfs_list=`$zfs_cmd list -H -o name`
ntime=`date "+$tfrmt"`
while [ "$1" ]; do
while [ "$1" = '-r' -o "$1" = '-R' -o "$1" = '-a' -o "$1" = '-p' -o "$1" = '-P' -o "$1" = '-D' ]; do
case "$1" in
'-r')
zopt='-r'
shift
;;
'-R')
zopt=''
shift
;;
'-a')
ttl="$2"
echo "$ttl" | grep -q -E -e "^[0-9]+$" && ttl=`s2time $ttl`
shift 2
;;
'-p')
prefx="$2"
prefxes="$prefxes|$prefx"
shift 2
;;
'-P')
prefx=""
shift
;;
'-D')
if [ "$zopt" != '-r' ]; then
delete_specific_fs_snapshots="$delete_specific_fs_snapshots $2"
else
delete_specific_fs_snapshots_recursively="$delete_specific_fs_snapshots_recursively $2"
fi
shift 2
;;
esac
done
# create snapshots
if [ $1 ]; then
if skip_pool $1; then
if [ $1 = `echo $1 | $ESED -e 's/^-//'` ]; then
zfs_snapshot="$zfs_cmd snapshot $zopt $1@${prefx}${ntime}--${ttl}${postfx}"
if is_false $dry_run; then
if $zfs_snapshot > /dev/stderr; then
is_true $verbose && echo "$zfs_snapshot ... DONE"
else
is_true $verbose && echo "$zfs_snapshot ... FAIL"
is_true $count_failures && failures=$(($failures + 1))
fi
else
printf "%s\n" $zfs_list | grep -m 1 -q -E -e "^$1$" \
&& echo "$zfs_snapshot" \
|| err "Looks like zfs filesystem '$1' doesn't exist"
fi
else
warn "'$1' doesn't look like valid argument. Ignoring"
fi
fi
shift
fi
done
prefxes=`echo "$prefxes" | sed -e 's/^\|//'`
# delete snapshots
if is_true $delete_snapshots || [ $force_delete_snapshots_age -ne -1 ]; then
if is_false $zpool28fix; then
zfs_snapshots=`$zfs_cmd list -H -o name -t snapshot | grep -E -e "^.*@(${prefxes})?${date_pattern}--${htime_pattern}$" | sed -e 's#/.*@#@#'`
else
zfs_snapshots=`$zfs_cmd list -H -o name -t snapshot | grep -E -e "^.*@(${prefxes})?${date_pattern}--${htime_pattern}$"`
fi
current_time=`date +%s`
for i in `echo $zfs_snapshots | xargs printf "%s\n" | $ESED -e "s/^.*@//" | sort -u`; do
create_time=$(date2timestamp `echo "$i" | $ESED -e "s/--${htime_pattern}$//; s/^(${prefxes})?//"`)
if is_true $delete_snapshots; then
stay_time=$(time2s `echo $i | $ESED -e "s/^(${prefxes})?${date_pattern}--//"`)
[ $current_time -gt $(($create_time + $stay_time)) ] \
&& rm_snapshot_pattern="$rm_snapshot_pattern $i"
fi
if [ "$force_delete_snapshots_age" -ne -1 ]; then
[ $current_time -gt $(($create_time + $force_delete_snapshots_age)) ] \
&& rm_snapshot_pattern="$rm_snapshot_pattern $i"
fi
done
if [ "$rm_snapshot_pattern" != '' ]; then
rm_snapshots=$(echo $zfs_snapshots | xargs printf '%s\n' | grep -E -e "@`echo $rm_snapshot_pattern | sed -e 's/ /|/g'`" | sort -u)
for i in $rm_snapshots; do
rm_zfs_snapshot -r $i
done
fi
fi
# delete all snap
if [ "$delete_specific_fs_snapshots" != '' ]; then
rm_snapshots=`$zfs_cmd list -H -o name -t snapshot | grep -E -e "^($(echo "$delete_specific_fs_snapshots" | tr ' ' '|'))@(${prefxes})?${date_pattern}--${htime_pattern}$"`
for i in $rm_snapshots; do
rm_zfs_snapshot $i
done
fi
if [ "$delete_specific_fs_snapshots_recursively" != '' ]; then
rm_snapshots=`$zfs_cmd list -H -o name -t snapshot | grep -E -e "^($(echo "$delete_specific_fs_snapshots_recursively" | tr ' ' '|'))@(${prefxes})?${date_pattern}--${htime_pattern}$"`
for i in $rm_snapshots; do
rm_zfs_snapshot -r $i
done
fi
is_true $count_failures && exit $failures
exit 0
# vim: set ts=4 sw=4 expandtab: