introduce ezjail-admin snapshot. Experimental
This commit is contained in:
erdgeist
parent
f236990415
commit
76c442babe
109
ezjail-admin
109
ezjail-admin
@ -8,6 +8,7 @@ ezjail_etc="${ezjail_prefix}/etc"
|
||||
ezjail_share="${ezjail_prefix}/share/ezjail"
|
||||
ezjail_examples="${ezjail_prefix}/share/examples/ezjail"
|
||||
ezjail_jailcfgs="${ezjail_etc}/ezjail"
|
||||
ezjail_snap_date_format="%Y%m%d%H%M"
|
||||
|
||||
# read user config
|
||||
[ -f "${ezjail_etc}/ezjail.conf" ] && . "${ezjail_etc}/ezjail.conf"
|
||||
@ -40,7 +41,7 @@ ezjail_basesystem="base"
|
||||
case `uname -p` in amd64) ezjail_dirlist="${ezjail_dirlist} usr/lib32"; ezjail_basesystem="${ezjail_basesystem} lib32";; esac
|
||||
|
||||
# Synopsis messages
|
||||
ezjail_usage_ezjailadmin="${ezjail_admin} v3.3\nUsage: ${ezjail_admin} [archive|config|console|create|delete|install|list|restore|update] {params}"
|
||||
ezjail_usage_ezjailadmin="${ezjail_admin} v3.3\nUsage: ${ezjail_admin} [archive|config|console|create|delete|install|list|restore|snapshot|update] {params}"
|
||||
ezjail_usage_install="Usage: ${ezjail_admin} install [-mMpPsS] [-h host] [-r release]"
|
||||
ezjail_usage_create="Usage: ${ezjail_admin} create [-xbi] [-f flavour] [-r jailroot] [-s size] [-c bde|eli|zfs] [-C args] [-a archive] [-z parentzfs] jailname jailip"
|
||||
ezjail_usage_delete="Usage: ${ezjail_admin} delete [-wf] jailname"
|
||||
@ -441,6 +442,70 @@ ensure_jailzfs() {
|
||||
/sbin/zfs create -o mountpoint=${ezjail_jaildir} ${ezjail_zfs_properties} ${ezjail_jailzfs}
|
||||
}
|
||||
|
||||
# implement snapshot retentions
|
||||
filteroldsnapshots() {
|
||||
local win repeat bottom in_window snap_id snap_del first_round_done max_diff
|
||||
bottom=`date +%s`
|
||||
|
||||
unset snap_del first_round_done
|
||||
snap_id=0
|
||||
for win in ${ezjail_retention_policy}; do
|
||||
# split repeat count from window chunk
|
||||
case ${win} in *x*) repeat=${win%x*}; win=${win#*x};; *) repeat=1;; KEEP) return;; esac
|
||||
|
||||
# check for correct value
|
||||
case ${win} in [0-9]);; [0-9]*[0-9mhdwy]);; *) echo "Unknown window length declaration ${win}"; return ;; esac
|
||||
|
||||
# values default to minutes
|
||||
case ${win} in *h) m=60;; *d) m=1440;; *w) m=10080;; *y) m=*525600;; *) m=1;; esac
|
||||
win=$((${win%[mhdwy]}*m*60))
|
||||
max_diff=$(( 3 * win / 4 ))
|
||||
|
||||
# innerloop $repeats over windows
|
||||
while [ $(( repeat-=1 )) -ge 0 ]; do
|
||||
# Shift bottom of window
|
||||
bottom=$(( ${bottom} - ${win} ))
|
||||
|
||||
# now loop over parameters
|
||||
in_window=YES; while [ "${in_window}" ]; do
|
||||
|
||||
# When snap_id is required, pop one if possible
|
||||
if [ "${snap_id}" -eq 0 -a $# -gt 0 ]; then
|
||||
snap_id=`date -j -f ${ezjail_snap_date_format} $1 +%s`
|
||||
shift
|
||||
fi
|
||||
|
||||
# is next snapshot before this window? test next window
|
||||
if [ ${snap_id} -lt ${bottom} ]; then
|
||||
[ "${first_round_done}" ] || echo /sbin/zfs snapshot -r ${ezjail_zfs}@ez-autosnap-`date +${ezjail_snap_date_format}`
|
||||
[ "${first_round_done}" ] || /sbin/zfs snapshot -r ${ezjail_zfs}@ez-autosnap-`date +${ezjail_snap_date_format}`
|
||||
|
||||
# Zero marks end of snaps list
|
||||
[ "${snap_id}" -eq 0 ] && return
|
||||
|
||||
unset snap_del in_window
|
||||
else
|
||||
if [ "${snap_del}" -a $(( snap_del - snap_id )) -lt ${max_diff} ]; then
|
||||
echo /sbin/zfs destroy -r ${ezjail_zfs}@ez-autosnap-`date -j -f %s ${snap_del} +${ezjail_snap_date_format}`
|
||||
/sbin/zfs destroy -r ${ezjail_zfs}@ez-autosnap-`date -j -f %s ${snap_del} +${ezjail_snap_date_format}`
|
||||
fi
|
||||
snap_del="${snap_id}"
|
||||
snap_id=0
|
||||
fi
|
||||
first_round_done="YES"
|
||||
|
||||
done
|
||||
done
|
||||
done
|
||||
|
||||
# if out of windows, default to delete the remainder of snaps
|
||||
for snap_del in ${snap_id} $*; do
|
||||
echo /sbin/zfs destroy -r ${ezjail_zfs}@ez-autosnap-`date -j -f %s ${snap_del} +${ezjail_snap_date_format}`
|
||||
/sbin/zfs destroy -r ${ezjail_zfs}@ez-autosnap-`date -j -f %s ${snap_del} +${ezjail_snap_date_format}`
|
||||
done
|
||||
|
||||
}
|
||||
|
||||
#############################
|
||||
# End of function definitions
|
||||
# "
|
||||
@ -1156,7 +1221,47 @@ console)
|
||||
|
||||
exec ${_setfib} jexec ${ezjail_id} ${ezjail_default_execute}
|
||||
;;
|
||||
######################## ezjail-admin ARCHIVE ########################
|
||||
######################## ezjail-admin SNAPSHOT ########################
|
||||
snapshot)
|
||||
shift
|
||||
if [ $# -eq 0 ]; then
|
||||
cd ${ezjail_jailcfgs} && ezjail_list=`ls -A`
|
||||
else
|
||||
ezjail_list=$*
|
||||
fi
|
||||
|
||||
for ezjail in ${ezjail_list}; do
|
||||
fetchjailinfo ${ezjail%.norun}
|
||||
|
||||
# Check for existence of jail in our records
|
||||
[ "${ezjail_config}" ] || exerr "Error: Nothing known about jail ${ezjail_name}."
|
||||
|
||||
# Snapshots only work with zfs jails
|
||||
[ "${ezjail_imagetype}" = "zfs" -o -n "${ezjail_zfs_datasets}" ] || continue
|
||||
|
||||
[ "${ezjail_imagetype}" = "zfs" ] && ezjail_zfs_datasets="${ezjail_parentzfs}/${ezjail_hostname} ${ezjail_zfs_datasets}"
|
||||
|
||||
# Use global retention policy, if none set
|
||||
: ${ezjail_retention_policy=${ezjail_default_retention_policy}}
|
||||
|
||||
for ezjail_zfs in ${ezjail_zfs_datasets}; do
|
||||
check_for_zfs_exist ${ezjail_zfs} || continue
|
||||
zfs_retention_policy=`/sbin/zfs get -H -o value ezjail:autosnap_retention ${ezjail_zfs}`
|
||||
[ "${zfs_retention_policy}" = "-" ] || ezjail_retention_policy="${zfs_retention_policy}"
|
||||
echo RP: ${ezjail_retention_policy}
|
||||
if [ -z "${ezjail_retention_policy}" ]; then
|
||||
/sbin/zfs snapshot ${ezjail_zfs}@ez-autosnap-`date +${ezjail_snap_date_format}`
|
||||
else
|
||||
snap_list=`/sbin/zfs list -H -t snapshot -o name -S creation -r ${ezjail_zfs} | \
|
||||
grep ^${ezjail_zfs}@ez-autosnap- | cut -d '@' -f 2 | cut -d '-' -f 3`
|
||||
echo SN: ${snap_list}
|
||||
filteroldsnapshots ${snap_list}
|
||||
fi
|
||||
done
|
||||
|
||||
done
|
||||
;;
|
||||
######################## ezjail-admin ARCHIVE ########################
|
||||
archive)
|
||||
# Clean variables, prevent pollution
|
||||
unset ezjail_archive ezjail_archive_tag ezjail_force ezjail_archivealljails ezjail_addfiles
|
||||
|
||||
Loading…
x
Reference in New Issue
Block a user