Uninterruptable Power Supply:APC
Installation of Latest Version
Apcupsd can be used for power management and controlling most of APC's UPS models on Unix and Windows machines. Apcupsd works with most of APC's Smart-UPS models as well as most simple signalling models such a Back-UPS, and BackUPS-Office. During a power failure, apcupsd will inform the users about the power failure and that a shutdown may occur. If power is not restored, a system shutdown will follow when the battery is exhausted, a timeout (seconds) expires, or runtime expires based on internal APC calculations determined by power consumption rates. Apcupsd is licensed under the GPL version 2.
The latest version of apcupsd is 3.14.8-1 (January 2010) and is available from sourceforge in two rpms - one for the UPS daemon and one for the web based monitoring scripts. Neither of these install exactly in line with the SME way, and neither does the older version available on DAG.
These installation instructions make some additional modifications for SME
Download and install
Get the rpms from sourceforge
wget https://sourceforge.net/projects/apcupsd/files/rpms%20-%20Stable/3.14.8/apcupsd-3.14.8-1.el4.i386.rpm/download wget https://sourceforge.net/projects/apcupsd/files/rpms%20-%20Stable/3.14.8/apcupsd-multimon-3.14.8-1.el4.i386.rpm/download
Install with yum
yum localinstall apcupsd-3.14.8-1.el4.i386.rpm apcupsd-multimon-3.14.8-1.el4.i386.rpm
Configure apcupsd
Link the startup file and enable the service
ln -s /etc/init.d/e-smith-service /etc/rc.d/rc7.d/S38apcupsd config set apcupsd service status enabled
Copy the original conf file
cp /etc/apcupsd/apcupsd.conf /etc/apcupsd/apcupsd.conf.orig
Edit /etc/apcupsd/apcupsd.conf file and make relevant changes for your UPS and requirements. The file is reasonably well documented and as a minimum you will probably want to set
UPSNAME UPSCABLE UPSTYPE DEVICE BATTERYLEVEL MINUTES TIMEOUT
Now make sure Nut isn't running and start the service
config setprop nut status disabled /etc/init.d/nut stop /etc/rc.d/rc7.d/S38apcupsd start
Configure Multimon etc Scripts
The apcupsd-multimon rpm contains four cgi scripts that can be run via the webserver to monitor the UPS(s). The rpm does not install them correctly for SME however so the following modifications are needed.
mkdir -p /opt/apcupsd chown root:www /opt/apcupsd mv /var/www/cgi-bin/multimon.cgi /opt/apcupsd mv /var/www/cgi-bin/upsstats.cgi /opt/apcupsd mv /var/www/cgi-bin/upsfstats.cgi /opt/apcupsd mv /var/www/cgi-bin/upsimage.cgi /opt/apcupsd chown root:www /opt/apcupsd/* chmod 750 /opt/apcupsd/* mkdir -p /etc/e-smith/templates-custom/etc/httpd/conf/httpd.conf cd /etc/e-smith/templates-custom/etc/httpd/conf/httpd.conf
Now edit and create a new file 92apcupsdmon with the following content
{
$OUT = "";
my $allow = 'all';
my $pass = '0';
my $satisfy = 'all';
my $name = $apcupsd{'Name'} || 'apcupsd UPS Monitor';
for ('exit-if-none')
{
if ($apcupsd{'PublicAccess'})
{
if ($apcupsd{'PublicAccess'} eq 'none')
{
next;
}
elsif ($apcupsd{'PublicAccess'} eq 'local')
{
$allow = $localAccess;
$pass = 0;
$satisfy = 'all';
}
elsif ($apcupsd{'PublicAccess'} eq 'local-pw')
{
$allow = $localAccess;
$pass = 1;
$satisfy = 'all';
}
elsif ($apcupsd{'PublicAccess'} eq 'global')
{
$allow = 'all';
$pass = 0;
$satisfy = 'all';
}
elsif ($apcupsd{'PublicAccess'} eq 'global-pw')
{
$allow = 'all';
$pass = 1;
$satisfy = 'all';
}
elsif ($apcupsd{'PublicAccess'} eq 'global-pw-remote')
{
$allow = $localAccess;
$pass = 1;
$satisfy = 'any';
}
}
$OUT .= "#------------------------------------------------------------\n";
$OUT .= "# apcupsd - $name\n";
$OUT .= "#------------------------------------------------------------\n";
{
if ((exists $apcupsd{'URL'}) && ($apcupsd{'URL'} ne ))
{ $OUT .= "Alias /$apcupsd{'URL'} /opt/apcupsd\n";
$OUT .= "ScriptAlias /$apcupsd{'URL'} /opt/apcupsd\n"; }
}
$OUT .= "Alias /apcupsd /opt/apcupsd\n";
$OUT .= "\n";
$OUT .= "<Directory /opt/apcupsd>\n";
$OUT .= " DirectoryIndex upsstats.cgi\n";
$OUT .= " Options +ExecCGI\n";
$OUT .= " order deny,allow\n";
$OUT .= " deny from all\n";
$OUT .= " allow from $allow\n";
if ($pass)
{
$OUT .= " AuthName $name\n";
$OUT .= " AuthType Basic\n";
$OUT .= " AuthExternal pwauth\n";
$OUT .= " require valid-user\n";
$OUT .= " Satisfy $satisfy\n";
}
$OUT .= "</Directory>\n";
}
}
Configure and expand the template
config setprop apcupsd PublicAccess local /sbin/e-smith/expand-template /etc/httpd/conf/httpd.conf
Restart the web server
sv t httpd-e-smith
Usage of Multimon etc Scripts
Now go to http://yourdomain.tld/apcupsd to see the statistics for the UPS at localhost, or https://yourdomain.tld/apcupsd/multimon.cgi for an overview of the UPS(s).
By editing /etc/apcupsd/hosts.conf and adding additional network UPS details, multimon.cgi can be used to monitor more than one UPS. By default only the localhost is monitored.
References
See the apcupsd main site.
See the apcupsd manual for further configuration and testing options.
See Uninterruptable_Power_Supply for standard SME use of Nut for UPS monitoring
See original forum post
Original Instructions (DAG)
The following instructions are based on the original forum post http://forums.contribs.org/index.php?topic=45923.0 and the use of an rpm from the DAG repository.
Setup the DAG repository
The following command will configure the Dag repository on SME Server. EDIT NOT COMPLETE!
To create an entry in the database for the epel repository we open put the following commands in a terminal
window or in a shell window:
/sbin/e-smith/db yum_repositories set epel repository \
Name 'SME Server - epel' \ BaseURL 'http://<http://download.fedoraproject.org/pub/epel/7/$basearch' \ EnableGroups yes \ GPGCheck yes \ Visible no \ status disabled
To enable the changes:
signal-event yum-modify
Just to be sure, give yum a fresh start:
yum clean all
After adding it to the database we have to update the changes to the configuration file:
signal-event yum-modify
Installation
Install apcupsd
yum install --enablerepo=dag --enablerepo=base apcupsd
Copy original conf file
cp apcupsd.conf apcupsd.conf.orig
Copy CGI files
cp /var/www/apcupsd/* /home/e-smith/files/ibays/Primary/cgi-bin/
Link the startup script
ln -s /etc/rc.d/init.d/e-smith-service /etc/rc.d/rc7.d/S99apcupsd
Set the Service in SME
config set apcupsd service status enabled
Configuration
Edit /etc/apcupsd/apcupsd.conf. The conf file has good detail on setup options.
Suggest setting the TIMEOUT to 600 seconds; You shouldn't let UPS batteries run down to 5% (default) as this massively shortens their life. Set TIMEOUT to 10 for testing.
Reboot or
/etc/init.d/apcupsd start
to start the service.
Usage
http://yourdomain.tld/cgi-bin/multimon.cgi gives a nice look at the UPS status, including a log of past events
