Distinguish critical alerts and warning with colors

[kalyanivalaboju]

Hi Team,

Do we have any mechanism to have email notification highlighted in different colors for critical alerts to distinguish.
Kindly help.

Regards,
Kalyani

[tacolover101]

yes, but it would require you to set it up. there's a bit of work needed for this. i can provide you a skeleton to use to build it out.

1. setup a new host notification command to tell nagios to use your custom command (look at notify-host-by-email for reference)
2. rewrite the command to evaluate $HOSTSTATE$ (or $SERVICESTATE$ if a service), here is an example of what it's likely set to:

Code: Select all

/usr/bin/printf "%b" "***** Nagios Monitor XI Alert *****\n\nNotification Type: $NOTIFICATIONTYPE$\nHost: $HOSTNAME$\nState: $HOSTSTATE$\nAddress: $HOSTADDRESS$\nInfo: $HOSTOUTPUT$\n\nDate/Time: $LONGDATETIME$\n" | /bin/mail -s "** $NOTIFICATIONTYPE$ Host Alert: $HOSTNAME$ is $HOSTSTATE$ **" $CONTACTEMAIL$

3. once you evaluate, and have your different logic set for the different states, add the html to each.
example:

Code: Select all

<font color="red">AUSTRALIA IS ON FIRE</font>

another option would be to evaluate a variable such as $fontcolor, and change that based on what the variable $HOSTSTATE$ equals to, then use this:

Code: Select all

if [ $HOSTSTATE$ = "critical" ] then
fontcolor=red
else
##placeholder for additional logic
fi

then modify your mailing command to use the variable:

Code: Select all

<font color="$fontcolor">AUSTRALIA IS ON FIRE</font>

[scottwilkerson]

Thanks @tacolover101!

[kalyanivalaboju]

Hi,

Thanks for the response.
Can i get step by step document as i am new to this.

Regards,
Kalyani.V

[scottwilkerson]

We don't have a step by step guide because yo are asking for something that isn't done out of the box.

The only guidance we could give as an example @tacolover101 already gave