--- /dev/null
+#!/usr/bin/env bash
+
+me="${0}"
+
+sendmail="$(which sendmail 2>/dev/null || command -v sendmail 2>/dev/null)"
+if [ -z "${sendmail}" ]
+then
+ echo >&2 "I cannot send emails - there is no sendmail command available."
+fi
+
+sendmail_from_pipe() {
+ "${sendmail}" -t
+
+ if [ $? -eq 0 ]
+ then
+ echo >&2 "${me}: Sent notification email for ${status} on '${chart}.${name}'"
+ return 0
+ else
+ echo >&2 "${me}: FAILED to send notification email for ${status} on '${chart}.${name}'"
+ return 1
+ fi
+}
+
+name="${1}" # the name of the alarm, as given in netdata health.d entries
+chart="${2}" # the name of the chart (type.id)
+status="${3}" # the current status : UNITIALIZED, UNDEFINED, CLEAR, WARNING, CRITICAL
+old_status="${4}" # the previous status: UNITIALIZED, UNDEFINED, CLEAR, WARNING, CRITICAL
+value="${5}" # the current value
+old_value="${6}" # the previous value
+src="${7}" # the line number and file the alarm has been configured
+duration="${8}" # the duration in seconds the previous state took
+non_clear_duration="${9}" # the total duration in seconds this is non-clear
+
+# get the system hostname
+hostname="$(hostname)"
+
+# get the current date
+date="$(date)"
+
+duration4human() {
+ local s="${1}" d=0 h=0 m=0 ds="day" hs="hour" ms="minute" ss="second"
+ d=$(( s / 86400 ))
+ s=$(( s - (d * 86400) ))
+ h=$(( s / 3600 ))
+ s=$(( s - (h * 3600) ))
+ m=$(( s / 60 ))
+ s=$(( s - (m * 60) ))
+
+ if [ ${d} -gt 0 ]
+ then
+ [ ${m} -ge 30 ] && h=$(( h + 1 ))
+ [ ${d} -gt 1 ] && ds="days"
+ [ ${h} -gt 1 ] && hs="hours"
+ if [ ${h} -gt 0 ]
+ then
+ echo "${d} ${ds} and ${h} ${hs}"
+ else
+ echo "${d} ${ds}"
+ fi
+ elif [ ${h} -gt 0 ]
+ then
+ [ ${s} -ge 30 ] && m=$(( m + 1 ))
+ [ ${h} -gt 1 ] && hs="hours"
+ [ ${m} -gt 1 ] && ms="minutes"
+ if [ ${m} -gt 0 ]
+ then
+ echo "${h} ${hs} and ${m} ${ms}"
+ else
+ echo "${h} ${hs}"
+ fi
+ elif [ ${m} -gt 0 ]
+ then
+ [ ${m} -gt 1 ] && ms="minutes"
+ [ ${s} -gt 1 ] && ss="seconds"
+ if [ ${s} -gt 0 ]
+ then
+ echo "${m} ${ms} and ${s} ${ss}"
+ else
+ echo "${m} ${ms}"
+ fi
+ else
+ [ ${s} -gt 1 ] && ss="seconds"
+ echo "${s} ${ss}"
+ fi
+}
+
+severity="${status}"
+raised_for="<br/>(was ${old_status,,} for $(duration4human ${duration}))"
+status_message="status unknown"
+color="grey"
+alarm="${name} = ${value}"
+
+# prepare the title based on status
+case "${status}" in
+ CRITICAL)
+ status_message="is critical"
+ color="#ca414b"
+ ;;
+
+ WARNING)
+ status_message="needs attention"
+ color="#caca4b"
+ ;;
+
+ CLEAR)
+ status_message="recovered"
+ color="#77ca6d"
+
+ # don't show the value when the status is CLEAR
+ # for certain alarms, this value might not have any meaning
+ alarm="${name}"
+ ;;
+esac
+
+if [ "${status}" != "WARNING" -a "${status}" != "CRITICAL" -a "${status}" != "CLEAR" ]
+then
+ # don't do anything if this is not WARNING, CRITICAL or CLEAR
+ echo >&2 "${me}: not sending notification email for ${status} on '${chart}.${name}'"
+ exit 0
+elif [ "${old_status}" != "WARNING" -a "${old_status}" != "CRITICAL" -a "${status}" = "CLEAR" ]
+then
+ # don't do anything if this is CLEAR, but it was not WARNING or CRITICAL
+ echo >&2 "${me}: not sending notification email for ${status} on '${chart}.${name}' (last status was ${old_status})"
+ exit 0
+elif [ "${status}" = "CLEAR" ]
+then
+ severity="Recovered from ${old_status}"
+ if [ $non_clear_duration > $duration ]
+ then
+ raised_for="<br/>(had issues for $(duration4human ${non_clear_duration}))"
+ fi
+
+elif [ "${old_status}" = "WARNING" -a "${status}" = "CRITICAL" ]
+then
+ severity="Escalated to ${status}"
+ if [ $non_clear_duration > $duration ]
+ then
+ raised_for="<br/>(has issues for $(duration4human ${non_clear_duration}))"
+ fi
+
+elif [ "${old_status}" = "CRITICAL" -a "${status}" = "WARNING" ]
+then
+ severity="Demoted to ${status}"
+ if [ $non_clear_duration > $duration ]
+ then
+ raised_for="<br/>(has issues for $(duration4human ${non_clear_duration}))"
+ fi
+
+else
+ raised_for=
+fi
+
+# send the email
+cat <<EOF | sendmail_from_pipe
+To: root
+Subject: ${hostname} ${status_message} - ${chart}.${name}
+Content-Type: text/html
+
+<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
+<html xmlns="http://www.w3.org/1999/xhtml" style="font-family: 'Helvetica Neue', 'Helvetica', Helvetica, Arial, sans-serif; box-sizing: border-box; font-size: 14px; margin: 0; padding: 0;">
+<body style="font-family:'Helvetica Neue','Helvetica',Helvetica,Arial,sans-serif;font-size:14px;width:100%!important;min-height:100%;line-height:1.6;background:#f6f6f6;margin:0;padding:0">
+<table>
+ <tbody>
+ <tr>
+ <td style="vertical-align:top;" valign="top"></td>
+ <td width="700" style="vertical-align:top;display:block!important;max-width:700px!important;clear:both!important;margin:0 auto;padding:0" valign="top">
+ <div style="max-width:700px;display:block;margin:0 auto;padding:20px">
+ <table width="100%" cellpadding="0" cellspacing="0"
+ style="background:#fff;border:1px solid #e9e9e9">
+ <tbody>
+ <tr>
+ <td bgcolor="#eee"
+ style="padding: 5px 20px 5px 20px;background-color:#eee;">
+ <div style="font-size:20px;color:#777;font-weight: bold;">netdata notification</div>
+ </td>
+ </tr>
+ <tr>
+ <td bgcolor="${color}"
+ style="font-size:16px;vertical-align:top;font-weight:400;text-align:center;margin:0;padding:10px;color:#ffffff;background:${color}!important;border:1px solid ${color};border-top-color:${color}" align="center" valign="top">
+ <h1 style="font-weight:400;margin:0">${hostname} ${status_message}</h1>
+ </td>
+ </tr>
+ <tr>
+ <td style="vertical-align:top" valign="top">
+ <div style="margin:0;padding:20px;max-width:700px">
+ <table width="100%" cellpadding="0" cellspacing="0" style="max-width:700px">
+ <tbody>
+ <tr>
+ <td style="font-size:18px;vertical-align:top;margin:0;padding:0 0 20px"
+ align="left" valign="top">
+ <span>${chart}</span>
+ <span style="display:block;color:#666666;font-size:12px;font-weight:300;line-height:1;text-transform:uppercase">Chart</span>
+ </td>
+ </tr>
+ <tr style="margin:0;padding:0">
+ <td style="font-size:18px;vertical-align:top;margin:0;padding:0 0 20px"
+ align="left" valign="top">
+ <span>${alarm}</span>
+ <span style="display:block;color:#666666;font-size:12px;font-weight:300;line-height:1;text-transform:uppercase">Alarm</span>
+ </td>
+ </tr>
+ <tr style="margin:0;padding:0">
+ <td style="font-size:18px;vertical-align:top;margin:0;padding:0 0 20px"
+ align="left" valign="top">
+ <span>${severity}</span>
+ <span style="display:block;color:#666666;font-size:12px;font-weight:300;line-height:1;text-transform:uppercase">Severity</span>
+ </td>
+ </tr>
+ <tr style="margin:0;padding:0">
+ <td style="font-size:18px;vertical-align:top;margin:0;padding:0 0 20px"
+ align="left" valign="top"><span>${date}</span>
+ <span>${raised_for}</span> <span
+ style="display:block;color:#666666;font-size:12px;font-weight:300;line-height:1;text-transform:uppercase">Time</span>
+ </td>
+ </tr>
+ <tr style="text-align:center;margin:0;padding:0">
+ <td style="font-size:11px;vertical-align:top;margin:0;padding:10px 0 0 0;color:#666666"
+ align="center" valign="bottom">The source of this alarm is line <code>${src}</code>
+ </td>
+ </tr>
+ <tr style="text-align:center;margin:0;padding:0">
+ <td style="font-size:12px;vertical-align:top;margin:0;padding:20px 0 0 0;color:#666666;border-top:1px solid #f0f0f0"
+ align="center" valign="bottom">Sent by
+ <a href="https://mynetdata.io/" target="_blank">netdata</a>, the real-time performance monitoring.
+ </td>
+ </tr>
+ </tbody>
+ </table>
+ </div>
+ </td>
+ </tr>
+ </tbody>
+ </table>
+ </div>
+ </td>
+ </tr>
+ </tbody>
+</table>
+</body>
+</html>
+EOF
projects / netdata.git / blobdiff