Table of Contents

Loading ...

Backup/Restore

Backup

Periodic backup

A backup of the database and the data are launched every day with a logrotate task. It is run at 06:25 a.m. and backups are kept for 7 days.

Logrotate task:

  • /etc/logrotate.d/wazo-backup

Logrotate cron:

  • /etc/cron.daily/logrotate

Retrieve the backup

With shell access, you can retrieve them in /var/backups/wazo. In this directory you will find db.tgz and data.tgz files for the database and data backups.

Backup scripts:

  • /usr/sbin/wazo-backup

Backup location:

  • /var/backups/wazo

What is actually backed-up?

Data

Here is the list of folders and files that are backed-up:

  • /etc/asterisk/
  • /etc/crontab
  • /etc/dhcp/
  • /etc/hostname
  • /etc/hosts
  • /etc/ldap/
  • /etc/network/if-up.d/xivo-routes
  • /etc/network/interfaces
  • /etc/ntp.conf
  • /etc/profile.d/xivo_uuid.sh
  • /etc/resolv.conf
  • /etc/ssl/
  • /etc/systemd/
  • /etc/wanpipe/
  • /etc/wazo-agentd/
  • /etc/wazo-agid/
  • /etc/wazo-amid/
  • /etc/wazo-auth/
  • /etc/wazo-call-logd/
  • /etc/wazo-calld/
  • /etc/wazo-chatd/
  • /etc/wazo-confd/
  • /etc/wazo-confgend-client/
  • /etc/wazo-dird/
  • /etc/wazo-dxtora/
  • /etc/wazo-phoned/
  • /etc/wazo-plugind/
  • /etc/wazo-purge-db/
  • /etc/wazo-webhookd/
  • /etc/wazo-websocketd/
  • /etc/xivo/
  • /root/.config/wazo-auth-cli/
  • /usr/local/bin/
  • /usr/local/sbin/
  • /usr/local/share/
  • /usr/share/wazo/WAZO-VERSION
  • /var/lib/asterisk/
  • /var/lib/wazo-auth-keys/
  • /var/lib/wazo-provd/
  • /var/lib/wazo/
  • /var/log/asterisk/
  • /var/spool/asterisk/
  • /var/spool/cron/crontabs/

The following files/folders are excluded from this backup:

  • folders:
    • /var/lib/wazo-provd/plugins/*/var/cache/*
    • /var/spool/asterisk/monitor/
  • files
    • /var/lib/wazo-provd/plugins/wazo-polycom*/var/tftpboot/*.ld
  • log files, coredump files
  • audio recordings
  • and, files greater than 10 MiB or folders containing more than 100 files if they belong to one of these folders:
    • /var/lib/asterisk/moh/
    • /var/lib/asterisk/sounds/custom/
    • /var/lib/wazo/sounds/
    • /var/spool/asterisk/monitor/
    • /var/spool/asterisk/voicemail/

Database

The following databases from PostgreSQL are backed up:

  • asterisk: all the configuration done via the web interface (exceptions: High Availability, Provisioning, Certificates)

Creating backup files manually

Warning: A backup file may take a lot of space on the disk. You should check the free space on the partition before creating one.

Database

You can manually create a database backup file named db-manual.tgz in /var/tmp by issuing the following commands:

wazo-backup db /var/tmp/db-manual

Files

You can manually create a data backup file named data-manual.tgz in /var/tmp by issuing the following commands:

wazo-backup data /var/tmp/data-manual

Restore

Introduction

A backup of both the configuration files and the database used by a Wazo installation is done automatically every day. These backups are created in the /var/backups/wazo directory and are kept for 7 days.

Limitations

  • You must restore a backup on the same version of Wazo that was backed up (though the architecture -- i386 or amd64 -- may differ)
  • You must restore a backup on a machine with the same hostname and IP address

Before Restoring the System

Warning: Before restoring a Wazo on a fresh install you have to setup Wazo using the wizard.

Stop monit and all the Wazo services:

wazo-service stop

Restoring System Files

System files are stored in the data.tgz file located in the /var/backups/wazo directory.

This file contains for example, voicemail files, musics, voice guides, phone set firmware, provisioning server configuration database.

To restore the file :

tar xvfp /var/backups/wazo/data.tgz -C /

Once the database and files have been restored, you can finalize the restore

Restoring the Database

Warning:

  • This will destroy all the current data in your database.
  • You have to check the free space on your system partition before extracting the backups.
  • If restoring Wazo >= 18.01 on a different machine, you should not restore the system configuration, because of network interface names that would change. See Alternative: Restoring and Keeping System Configuration.

Database backups are created as db.tgz files in the /var/backups/wazo directory. These tarballs contain a dump of the database used in Wazo.

In this example, we'll restore the database from a backup file named db.tgz placed in the home directory of root.

First, extract the content of the db.tgz file into the /var/tmp directory and go inside the newly created directory:

tar xvf db.tgz -C /var/tmp
cd /var/tmp/pg-backup

Drop the asterisk database and restore it with the one from the backup:

sudo -u postgres dropdb asterisk
sudo -u postgres pg_restore -C -d postgres asterisk-*.dump

Remove the cache files generated from the previous database:

rm -rf /var/cache/wazo-confgend/*

Once the database and files have been restored, you can finalize the restore

Troubleshooting

When restoring the database, if you encounter problems related to the system locale, see PostgreSQL localization errors.

Alternative: Restoring and Keeping System Configuration

System configuration like network interfaces is stored in the database. It is possible to keep this configuration and only restore Wazo data.

Rename the asterisk database to asterisk_previous:

sudo -u postgres psql -c 'ALTER DATABASE asterisk RENAME TO asterisk_previous'

Restore the asterisk database from the backup:

sudo -u postgres pg_restore -C -d postgres asterisk-*.dump

Restore the system configuration tables from the asterisk_previous database:

sudo -u postgres pg_dump -c -t dhcp -t netiface -t resolvconf asterisk_previous | sudo -u postgres psql asterisk

Drop the asterisk_previous database:

sudo -u postgres dropdb asterisk_previous

Warning: Restoring the data.tgz file also restores system files such as host hostname, network interfaces, etc. You will need to reapply the network configuration if you restore the data.tgz file.

Once the database and files have been restored, you can finalize the restore

After Restoring The System

  1. Restore the server UUID:

    XIVO_UUID=$(sudo -u postgres psql -d asterisk -tA -c 'select uuid from infos')
echo "export XIVO_UUID=$XIVO_UUID" > /etc/profile.d/xivo_uuid.sh

    Then edit /etc/systemd/system.conf to update XIVO_UUID in DefaultEnvironment

  2. Synchronize the restored database with configuration files:

    xivo-update-config

  3. You may reboot the system, or execute the following steps.

  4. Update systemd runtime configuration:

    source /etc/profile.d/xivo_uuid.sh
systemctl set-environment XIVO_UUID=$XIVO_UUID
systemctl daemon-reload

  5. Restart the services you stopped in the first step:

    wazo-service start