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Sample Configuration of the BareOS BackupServer

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BareOS Backup System

see also: BareOS Manual

Using Openmediavault NAS-Server as Basesystem.
At the time of writing, it's OMV Arrakis 4.0 on Debian 9 Stretch.

Prerequisites

Create a Backup-Volume/Partiton on the RAID/Disk with label backup.
The Volume with the Subvolume bareos will be mounted on /var/lib/bareos/ to hold all BareOS relevant data-files.

BACKUP_VOL=/srv/dev-disk-by-label-backup
btrfs sub cr $BACKUP_VOL/bareos
btrfs quota enable $BACKUP_VOL/bareos/
btrfs sub cr $BACKUP_VOL/bareos/storage
btrfs quota enable $BACKUP_VOL/bareos/storage
btrfs sub cr $BACKUP_VOL/bareos/bootstrap
btrfs quota enable $BACKUP_VOL/bareos/bootstrap

grep -v "/var/lib/bareos" /etc/fstab > /tmp/fstab.tmp
printf "$BACKUP_VOL/bareos\t\t\t/var/lib/bareos\t\tnone\tbind\t0 0\n" >> /tmp/fstab.tmp

mv --backup=t /tmp/fstab.tmp /etc/fstab
mkdir -p /var/lib/bareos
mount /var/lib/bareos

Installing BareOS from debian repo

No armhf packages in the BareOS-Repos, so we use older versions from Debian.

agi -y postgresql
agi -y bareos bareos-database-postgresql
chown -R bareos.  /etc/bareos /var/lib/bareos

# to use the directory-structure, remove old-style conf-files  
cd /etc/bareos
mv bareos-dir.conf .bareos-dir.conf
mv bareos-fd.conf .bareos-fd.conf
mv bareos-sd.conf .bareos-sd.conf
mv bareos-dir.conf.dist .bareos-dir.conf.dist
mv bareos-fd.conf.dist .bareos-fd.conf.dist
mv bareos-sd.conf.dist .bareos-sd.conf.dist

Installing WebUI from Bareos-Repo

Using the WebUI from 16.2, which correspondes to Debian 8 @ the BareOS-Repo.

# DIST=Debian_9.0
DIST=Debian_8.0
# DIST=xUbuntu_16.04

RELEASE=release/16.2
# or
# RELEASE=release/latest/
# RELEASE=experimental/nightly/

URL=http://download.bareos.org/bareos/$RELEASE/$DIST

# add the Bareos repository
printf "deb $URL /\n" > /etc/apt/sources.list.d/bareos.list

# add package key
wget -q $URL/Release.key -O- | apt-key add -

# install Bareos packages
apt-get update
apt-get install bareos-webui apache2 libapache2-mod-php

# adjusting Apach2 to coexists with nginx
sed -i s/80/81/g ports.conf
sed -i s/443/8443/g ports.conf
a2dissite 000-default
service  apache2 restart

Configure BareOS for WebUI

service bareos-dir restart
service bareos-fd restart
service bareos-sd restart

WEBUI_ADM="admin"
WEBUI_PW=${WEBUI_PW:-$(pwgen -1 12)}

bconsole << EOF
configure add console \
  name=$WEBUI_ADM \
  password=$WEBUI_PW \
  profile=webui-admin
reload
EOF

Configuring BareOS

Correcting Debian default configs

Changing the default Client-/Director-/Monitor-Name from bareos to [Server-hostname]-dir|sd|fd

SERVER=`hostname`
cd /etc/baros
for i in `grep bareos-fd -lr * `; do sed -i s/bareos-fd/$SERVER-fd/g $i; done
for i in `grep bareos-dir -lr * `; do sed -i s/bareos-dir/$SERVER-dir/g $i; done
for i in `grep bareos-mon -lr * `; do sed -i s/bareos-mon/$SERVER-mon/g $i; done
for i in `grep bareos-sd -lr * `; do sed -i s/bareos-sd/$SERVER-sd/g $i; done

Pool Definitions

Volume Retention

in /etc/bareos/bareos-dir.d/pool/

  • Full 4(2) months
  • Differencial 2(1) months
  • Incremental 1 months (14 days)
  • LongTerm-Pool (Vacation) 12 months

Limit Volume size and count to something reasonable, adjust per Pool:

  • Maximum Volume Bytes = XXG
  • Maximum Volumes = XX
  • AutoPrune=yes
  • ActionOnPurge=truncate
  • Recycle=yes

Create LongTerm-Pool

  • Full 12 months
  • manual start
bconsole << EOF
configure add pool \
  name=LongTermFull \
  pooltype=backup \
  recycle=yes  \
  maximumvolumebytes=50G \
  maximumvolumes=25 \
  volumeretention="12 months" \
  labelformat=LongTermFull- \
  autoprune=yes \
  ActionOnPurge=truncate \
  description="LongTerm Pool for 12 months Retention"
EOF

Schedule

in /etc/bareos/bareos-dir.d/schedule/

WeeklyCycle Schedule

  • defaults to 21:00

Change mon to sun in WeeklyCycle, to backup also on Sundays

sed -i s/mon/sun/g /etc/bareos/bareos-dir.d/schedule/WeeklyCycle.conf

Change mon-fri at 21:10 to daily at 22:00 in WeeklyCycleAfterBackup, to backup the Catalog every day.

sed -i "s/mon-fri at 21:10/daily at 22:00/g" /etc/bareos/bareos-dir.d/schedule/WeeklyCycleAfterBackup.conf

Change Schedule-Time

TIME="19:00"
sed -i s/at ..:../$TIME/g /etc/bareos/bareos-dir.d/schedule/*

HourlyCycle Schedule

To be used as drop in replacement to WeeklyCycle, (same same, but hourly ;))

bconsole << EOF
configure add schedule \
  Enabled=yes \
  Name="HourlyCycle" \
  Run="Full 1st sat at 21:00" \
  Run="Differential 2nd-5th sat at 21:00" \
  Run="Incremental hourly at 0:22" \
  Description="Standard Schedule with Monthly=Full, Weekly=Diff, Hourly=Inc"
EOF

Fileset

in /etc/bareos/bareos-dir.d/fileset/
HINT: LZ4(HC)-Compression is supported from 16.2 @stretch – onwards. Use GZIP with 14.2 – jessie (Debian 8) and Ubuntu 16.04

Include {
  Options {
    Signature=SHA1
    compression=gzip     # on 16.2 and later, use LZ4 or LZ4HC
    sparse = yes
    aclsupport = yes
    xattrsupport = yes
    …
  }  
}
File = /
File = /home
#File = /srv/
#File = /var/lib/lxc
# and every LXC
#File = /var/lib/lxc/[Name of LXC]/rootfs

Exclude {
  …
  File = *.o
  File = /var/cache/apt/archives
}

The clever FileSet

  • Run a FileList-CMD on the on the client: File = "\\|/bin/bash -c …"
# standard filessystems
cat /etc/fstab|egrep -v "^#|^$|swap|bind|iso|svfs|proc|tmp|devfs|sysfs|ram"|awk '{print $2}'|egrep -v "^/media|^/mnt|docker"
# @hansa,
# add /srv/media/music
# filter /srv/virt/images

# LXCs are backupd with host
# create a list of LXCs Direcotory & rootfs
# /var/lib/lxc/apps
# /var/lib/lxc/apps/rootfs

lxc-ls -1|awk '{ printf "/var/lib/lxc/"$1"\n""/var/lib/lxc/"$1"/rootfs\n" }'


# create a list out of the LXCs mount-entrys of bind-mounted volumes from /mnt
grep -s  bind /var/lib/lxc/*/*|egrep -v "\.log|proc|sysfs|tmp" | cut -d":" -f2 | sed s/.*mount.*\ =\ //g|awk '{ print $1 }'|sort -u|grep "^/mnt/"


# VPS are backuped from within -> REAR

For "One FS = yes" add

File = /home
File = /srv
File = /var/lib/lxc
# and every LXC
File = /var/lib/lxc/coiner/rootfs

JobDefs

  • Create Hourly-JobDef
  • Create LongTerm-JobDef
  • Accurate = yes
  • Write Bootstrap = /var/lib/bareos/**bootstrap**/%c.bsr
sed -i s#/var/lib/bareos/\%c#/var/lib/bareos/bootstrap/\%c#g \
  /etc/bareos/bareos-dir.d/jobdefs/*

Add JobDef: DefaultJob-Hourly

bconsole << EOF
configure add jobdefs \
  Enabled="yes" \
  Name="DefaultJob-Hourly" \
  Type="Backup" \
  Level="Incremental" \
  Accurate="yes" \
  Schedule="HourlyCycle" \
  Storage="File" \
  Messages="Standard" \
  Pool="Incremental" \
  Priority="10" \
  WriteBootstrap="/var/lib/bareos/bootstrap/%c.bsr" \
  FullBackupPool="Full" \
  DifferentialBackupPool="Differential" \
  IncrementalBackupPool="Incremental"
reload
EOF

Add JobDef: LongTermFull

bconsole << EOF
configure add jobdefs \
  Enabled="yes" \
  Name="LongTermFull" \
  Type="Backup" \
  Level="Full" \
  Accurate="yes" \
  Storage="File" \
  Messages="Standard" \
  Pool="LongTermFull" \
  Priority="10" \
  WriteBootstrap="/var/lib/bareos/bootstrap/%c.bsr" \
  FullBackupPool="LongTermFull"
reload
EOF

Jobs

  • Create a Job for every Client
  • Create a LongTermFull Job for Longterm (Vacation) Retention.
    • schedule
      This directive is optional, and if left out, the Job can only be started manually using the Console program.
  • filesets in Jobs

File & Catalog-Retention

Check File & Catalog Retention Values.
per job-type for

  • WS
  • VPS
  • LXCs

Add a Job: LongTermFull

CLIENT=[your CLIENT hostname here]
bconsole << EOF
configure add job \
  Enabled="yes" \
  Name="LongTermFull" \
  JobDefs="LongTermFull" \
  Client="$CLIENT-fd" \
  FileSet="LinuxAll" \
  Description="Full Backup for longterm Retention"
reload
EOF

Installing a Client

Software Installation

@Client

agi -y bareos-client pwgen
# with gui
agi -y bareos-traymonitor

cd /etc/bareos
SERVER=[your servername here]

# BareOS 16.2 or later
rm /etc/bareos/bareos-fd.d/director/bareos-dir.conf
for i in `grep bareos-dir -lr * `; do sed -i s/bareos-dir/$SERVER-dir/g $i; done
for i in `grep bareos-mon -lr * `; do sed -i s/bareos-mon/$SERVER-mon/g $i; done

# Bareos 14.2
sed -i s/bareos-dir/$SERVER-dir/g bareos-fd.conf bconsole.conf
sed -i s/bareos-mon/$SERVER-mon/g bareos-fd.conf bconsole.conf

Define the Client at BareOS Director

@Server

CLIENT=[your clientname here]
SERVER=`hostname`
PASSWORD=`pwgen -1 45`

bconsole << EOF
  configure add client \
  name=$CLIENT-fd \
  address=$CLIENT \
  password=$PASSWORD \
  AutoPrune=yes \
  Connection From Client To Director = no
reload
EOF

Add Director-Definition to the Client

BareOS 16.2 and later @server

scp /etc/bareos/bareos-dir-export/client/${CLIENT}-fd/bareos-fd.d/director/$SERVER-dir.conf \
 root@$CLIENT:/etc/bareos/bareos-fd.d/director/

BareOS 14.2 @client

SERVER=[your servername here]
CLIENT=`hostname`
cd /etc/bareos
sed -i s/$CLIENT-dir/$SERVER-dir/g bareos-fd.conf
sed -i s/$CLIENT-mon/$SERVER-mon/g bareos-fd.conf
# Take PASSWORD from Above and change it in the $SERVER-dir stanza in bareos-fd.conf
service bareos-fd restart
# Add if you want Client initiated Connections
Connection From Client To Director = yes

Add a Client Job

@Server

CLIENT="[IP or hostname]"

bconsole << EOF
configure add job \
  Enabled="yes" \
  Client="$CLIENT-fd" \
  Name="backup-$CLIENT-fd" \
  JobDefs="DefaultJob-Hourly" \
  FileSet="LinuxAll" \
  Description="Standard hourly Backup"
reload
EOF

Run first Client Backup

bconsole
* run

ToDo

  • switched from given size for Volumes to "Volume Use Duration" -> adapt this doc. see Automated Disk backups HINT: It has a flaw with writung the catalog to a new FullBackupPool-Volume every day.
    -> Use a Catalog-Pool.

  • LongTerm retentionTime must be longer then longest Vacation (deprecated?)

  • Base Backups (only usefull with windows installations)

  • use snapper to create ans mount snapshots of subvols. restrict snapper to 24 x hourly snapshots, since quota ist not working correctly (doublecheck)

  • for universal fileset -> use /etc/snapper/configs to determine which volumes to backup (FileSets with client-executed cmd)

  • encryption

  • Client initiated Connections if datavolume is not so big,

  • incremental filesize = 200M (wg. retentionTime)

  • Differential filesize = 500M

  • Full filesize= 10G

Writing Bootstrap files (to REAR-USB?)

Create better bootstrap-files and copy them to REAR-USB or /etc/rear/.
see about bootstrap files

Backing up VPS & LXCs

  • Create a Fileset and JobDef for LXCs & VPS

see FileSet Definitions
either use (raw) image-backup @HOST or use

Client initiated Connections for NotAlwaysOn VPS/LXCs/Laptops

@Server in /etc/bareos/bareos-dir.d/clients/ or per bconsole add to the usual client cmd:

Name = <client>-fd
Address = <client> or IP
Password = <password>
Connection From Client To Director = yes     # to start backups from client

@Client in /etc/bareos/bareos-fd.d/director

Connection From Client To Director Fd Director = yes

Snapshotting System for Backups

see job(defs)

  • Cient Run Before Job
  • Client Run After Job
  • Run Script

Fileset Definitions

Usefull Cmds

ATTENTION: use with Care

Delete All Jobs of all clients

for i in `echo list clients |bconsole|tail  -n8|awk '{print $4}'`; do
  echo purge jobs client=$i|bconsole
done

Truncate all Volumes in All Pools

To ask Bareos to truncate your Purged volumes, you need to use the following:

for i in `echo list pools |bconsole|tail  -n8|awk '{print $4}'`; do
  echo "purge volume action=truncate storage=File pool=$i"|bconsole
done

Delete Volumes from Catalog and FS hereafter

VOLUME=Full-0001
echo "delete volume=$VOLUME"|bconsole
#FIXME
# purge Volume?
#rm /var/lib/bareos/storage/$Volume

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Sample Configuration of the BareOS BackupServer

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