This commit is contained in:
thorsten.spille 2024-02-08 23:46:19 +01:00
parent 6dfe4947f1
commit 42a86a7351
8 changed files with 97 additions and 11 deletions

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15
CHANGELOG.md Normal file
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# Change log
## [v1.0.0] - 2024-02-07
Moved project from github.com
### Added
- pre/post-inst/rm scripts
- this changelog
- integrate checkzfs
### Changed
- start versioning with name v1.0.0

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#!/bin/bash
if [ ! -d /var/log/bashclub-zsync ]; then
mkdir -p /var/log/bashclub-zsync
fi

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#!/bin/bash

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#!/bin/bash

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#!/bin/bash

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# replication target path on local machine
target=pool/dataset
# ssh address of remote machine
source=user@host
# ssh port of remote machine
sshport=22
# zfs user parameter to identify filesystems/volumes to replicate
tag=bashclub:zsync
# pipe separated list of snapshot name filters
snapshot_filter="hourly|daily|weekly|monthly"
# minimum count of snapshots per filter to keep
min_keep=3
# number of zfs snapshots to keep on source (0 or 1 = snapshot function disabled)
zfs_auto_snapshot_keep=0
# make snapshot via zfs-auto-snapshot before replication
zfs_auto_snapshot_label="backup"
# disable checkzfs with value > 0
checkzfs_disabled=0
# set checkzfs parameter "--prefix"
checkzfs_prefix=zsync
# set checkzfs maximum age of last snapshot in minutes (comma separated => warn,crit)
checkzfs_max_age=1500,6000
# set checkzfs maximum count of snapshots per dataset (comma separated => warn,crit)
checkzfs_max_snapshot_count=150,165

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# bashclub zfs replication script
# Author: (C) 2023 Thorsten Spille <thorsten@spille-edv.de>
__version__=v1.0.0
PATH="/bin:/sbin:/usr/bin:/usr/sbin:/usr/local/bin:/usr/local/sbin"
prog="$(basename $0)"
zfs=$(which zfs)
ssh=$(which ssh)
scp=$(which scp)
grep=$(which grep)
uniq=$(which uniq)
cut=$(which cut)
@ -16,6 +19,8 @@ wc=$(which wc)
tr=$(which tr)
sed=$(which sed)
zfs_auto_snapshot=$(which zfs-auto-snapshot)
checkzfs=$(which checkzfs)
mv=$(which mv)
rc=0
debug=
@ -24,7 +29,7 @@ debug=
conf=/etc/bashclub/zsync.conf
#### default values in config file
# replication target on local machine
# replication target path on local machine
target=pool/dataset
# ssh address of remote machine
@ -60,18 +65,25 @@ checkzfs_max_age=1500,6000
# set checkzfs maximum count of snapshots per dataset (comma separated => warn,crit)
checkzfs_max_snapshot_count=150,165
# set where to move the checkzfs output (0 = local machine, 1 = source machine)
checkzfs_spool=0
# set maxmimum age of checkzfs data in seconds (hourly = 3900, daily = 87000)
checkzfs_spool_maxage=87000
usage() {
cat >&2 <<-EOF
usage: $prog [-h] [-d] [-c CONFIG]
creates a mirrored replication of configured zfs filesystems / volumes
cat >&2 << EOF
$prog Version $__version__
-------------------------------------------------------------------------------
usage: $prog [-h] [-d] [-c CONFIG]
creates a mirrored replication of configured zfs filesystems / volumes
-c CONFIG Configuration file for this script
-d Debug mode
---------------------------------------------------------------------------
(C) 2023 by Spille IT Solutions for bashclub (github.com/bashclub)
-------------------------------------------------------------------------------
(C) 2024 by Spille IT Solutions for bashclub (github.com/bashclub)
Author: Thorsten Spille <thorsten@spille-edv.de>
---------------------------------------------------------------------------
EOF
-------------------------------------------------------------------------------
EOF
exit $1
}
@ -160,7 +172,7 @@ fi
include_list="[INFO] Included datasets:\n"
exclude_list="[INFO] Excluded datasets:\n"
checkzfs_headline="[INFO] checkzfs filter:\n"
checkzfs_headline="[INFO] checkzfs filter:"
checkzfs_filter=
IFS=$'\n'
for zvol in $($ssh $sshcipher $sshport $source "zfs get -H -o name,value,source -t filesystem,volume $tag"); do
@ -182,11 +194,15 @@ for zvol in $($ssh $sshcipher $sshport $source "zfs get -H -o name,value,source
fi
else
exclude_list="${exclude_list}\t${name}\n"
if [[ $(echo $zvol | $grep "local") ]]; then
checkzfs_filter="!#$name|$checkzfs_filter"
fi
fi
done
checkzfs_filter=${checkzfs_filter::-1}
log "$include_list"
log "$exclude_list"
log "$checkzfs_headline\ncheckzfs_filter="$checkzfs_filter"
log "$checkzfs_headline\ncheckzfs_filter=$checkzfs_filter"
if ! $zfs list $target > /dev/null 2>&1 ; then
log "[DEBUG] $target does not exist. Creating..."
@ -291,5 +307,18 @@ for name in "${syncvols[@]}"; do
else
if [[ $debug == "-v" ]]; then log "[DEBUG] $name - No snapshots found with filter $snapshot_filter"; fi
fi
log "[INFO] Replication of $name finished."
done
if [ $checkzfs_disabled -eq 0 ]; then
log "[INFO] Running checkzfs..."
echo "<<<local>>>" > /tmp/${checkzfs_spool_maxage}_${checkzfs_prefix}
$checkzfs --output checkmk --threshold $checkzfs_max_age --maxsnapshots $checkzfs_max_snapshot_count --prefix $checkzfs_prefix --filter $checkzfs_filter >> /tmp/${checkzfs_spool_maxage}_${checkzfs_prefix}
if [ $checkzfs_spool -eq 0 ]; then
$mv /tmp/${checkzfs_spool_maxage}_${checkzfs_prefix} /var/lib/check_mk_agent/spool/
else
$scp /tmp/${checkzfs_spool_maxage}_${checkzfs_prefix} ${target}:/var/lib/check_mk_agent/spool/
fi
fi
exit $rc