====== Auto update Observium with crontab ======

Therefore that Observium doesn't use ''APT'' for updating, it can't be upgraded with ''unattended-upgrades'' for example. Nevertheless Observium can automatically be upgraded with a crontab:

<callout type="warning" icon="true">This way of updating was only tested for the enterprise version of Observium!</callout>

Create a crontab file with the following content:
<panel type="info" icon="glyphicon glyphicon-file" title="/etc/cron.d/observium-update">
<code bash>
# run observium update once a week
MAILTO=<mail-address>
0 6    * * 7   root /bin/bash /opt/observium-update
</code>
</panel>

And create the following file:
<panel type="info" icon="glyphicon glyphicon-file" title="/opt/observium-update">
<code bash>
#!/usr/bin/bash
echo ""
echo "» Updating  Observium to latest version «"
echo ""
echo ""
/usr/bin/svn update /opt/observium --non-interactive --no-auth-cache --username <username> --password <password>

echo ""
echo "» Update finished «"
echo ""

# touch this file to leave a fingerprint, if mailing fails
touch /root/updated.txt
</code>
</panel>

In case that your system has a proper configured ''mailutils''-package, the output of the crontab will be sent to the configured mail address at ''MAILTO=''.
Usually one script in ''/etc/cron.weekly'' would be enough, but we discovered, that the setting of ''MAILTO'' is ignored then and mailing will go always to root.