plugins.d/alarm-notify.sh

   1 #!/usr/bin/env bash
   2
   3 # (C) Costa Tsaousis
   4 # pushover support by Jan Arnold
   5
   6 me="${0}"
   7
   8 if [ $(( ${BASH_VERSINFO[0]} )) -lt 4 ]
   9 then
  10     echo >&2
  11     echo >&2 "$me: ERROR"
  12     echo >&2 "BASH version 4 or later is required."
  13     echo >&2 "You are running version: ${BASH_VERSION}"
  14     echo >&2 "Please upgrade."
  15     echo >&2
  16     exit 1
  17 fi
  18
  19 # defaults to allow running this script by hand
  20 NETDATA_CONFIG_DIR="${NETDATA_CONFIG_DIR-/etc/netdata}"
  21 NETDATA_CACHE_DIR="${NETDATA_CACHE_DIR-/var/cache/netdata}"
  22 [ -z "${NETDATA_REGISTRY_URL}" ] && NETDATA_REGISTRY_URL="https://registry.my-netdata.io"
  23 [ -z "${NETDATA_HOSTNAME}" ] && NETDATA_HOSTNAME="$(hostname)"
  24 [ -z "${NETDATA_REGISTRY_HOSTNAME}" ] && NETDATA_REGISTRY_HOSTNAME="${NETDATA_HOSTNAME}"
  25
  26 # -----------------------------------------------------------------------------
  27 # parse command line parameters
  28
  29 recipient="${1}"   # the recepient of the email
  30 host="${2}"        # the host this event refers to
  31 unique_id="${3}"   # the unique id of this event
  32 alarm_id="${4}"    # the unique id of the alarm that generated this event
  33 event_id="${5}"    # the incremental id of the event, for this alarm
  34 when="${6}"        # the timestamp this event occured
  35 name="${7}"        # the name of the alarm, as given in netdata health.d entries
  36 chart="${8}"       # the name of the chart (type.id)
  37 family="${9}"      # the family of the chart
  38 status="${10}"     # the current status : REMOVED, UNITIALIZED, UNDEFINED, CLEAR, WARNING, CRITICAL
  39 old_status="${11}" # the previous status: REMOVED, UNITIALIZED, UNDEFINED, CLEAR, WARNING, CRITICAL
  40 value="${12}"      # the current value
  41 old_value="${13}"  # the previous value
  42 src="${14}"        # the line number and file the alarm has been configured
  43 duration="${15}"   # the duration in seconds the previous state took
  44 non_clear_duration="${16}" # the total duration in seconds this is non-clear
  45 units="${17}"      # the units of the value
  46 info="${18}"       # a short description of the alarm
  47
  48 # -----------------------------------------------------------------------------
  49 # screen statuses we don't need to send a notification
  50
  51 # don't do anything if this is not WARNING, CRITICAL or CLEAR
  52 if [ "${status}" != "WARNING" -a "${status}" != "CRITICAL" -a "${status}" != "CLEAR" ]
  53 then
  54     echo >&2 "${me}: not sending notification for ${status} on '${chart}.${name}'"
  55     exit 1
  56 fi
  57
  58 # don't do anything if this is CLEAR, but it was not WARNING or CRITICAL
  59 if [ "${old_status}" != "WARNING" -a "${old_status}" != "CRITICAL" -a "${status}" = "CLEAR" ]
  60 then
  61     echo >&2 "${me}: not sending notification for ${status} on '${chart}.${name}' (last status was ${old_status})"
  62     exit 1
  63 fi
  64
  65 # -----------------------------------------------------------------------------
  66 # load configuration
  67
  68 # this is defined here so that private registries
  69 # can setup their own
  70 # images_base_url="${NETDATA_REGISTRY_URL}"
  71 images_base_url="https://registry.my-netdata.io"
  72
  73 # needed commands
  74 # if empty they will be searched in the system path
  75 curl=
  76 sendmail=
  77
  78 # enable / disable features
  79 SEND_SLACK="YES"
  80 SEND_PUSHOVER="YES"
  81 SEND_TELEGRAM="YES"
  82 SEND_EMAIL="YES"
  83
  84 # slack configs
  85 SLACK_WEBHOOK_URL=
  86 DEFAULT_RECIPIENT_SLACK=
  87 declare -A role_recipients_slack=()
  88
  89 # pushover configs
  90 PUSHOVER_APP_TOKEN=
  91 DEFAULT_RECIPIENT_PUSHOVER=
  92 declare -A role_recipients_pushover=()
  93
  94 # telegram configs
  95 TELEGRAM_BOT_TOKEN=
  96 DEFAULT_RECIPIENT_TELEGRAM=
  97 declare -A role_recipients_telegram=()
  98
  99 # email configs
 100 DEFAULT_RECIPIENT_EMAIL="root"
 101 declare -A role_recipients_email=()
 102
 103 # load the user configuration
 104 # this will overwrite the variables above
 105 if [ -f "${NETDATA_CONFIG_DIR}/health_alarm_notify.conf" ]
 106     then
 107     source "${NETDATA_CONFIG_DIR}/health_alarm_notify.conf"
 108 fi
 109
 110 # -----------------------------------------------------------------------------
 111 # filter recipients based on the criticality of each
 112
 113 filter_recipient_by_criticality() {
 114     local method="${1}" x="${2}" r s
 115     shift
 116
 117     r="${x/|*/}"
 118     s="${x/*|/}"
 119
 120     # no severity filtering for this person
 121     [ "${r}" = "${s}" ] && return 0
 122
 123     # the severity is invalid
 124     s="${s^^}"
 125     [ "${s}" != "CRITICAL" ] && return 0
 126
 127     # the new or the old status matches the severity
 128     if [ "${s}" = "${status}" -o "${s}" = "${old_status}" ]
 129         then
 130         [ ! -d "${NETDATA_CACHE_DIR}/alarm-notify/${method}/${r}" ] && \
 131             mkdir -p "${NETDATA_CACHE_DIR}/alarm-notify/${method}/${r}"
 132
 133         # we need to keep track of the notifications we sent
 134         # so that the same user will receive the recovery
 135         # even if old_status does not match the required severity
 136         touch "${NETDATA_CACHE_DIR}/alarm-notify/${method}/${r}/${alarm_id}"
 137         return 0
 138     fi
 139
 140     # it is a cleared alarm we have sent notification for
 141     if [ "${status}" != "WARNING" -a "${status}" != "CRITICAL" -a -f "${NETDATA_CACHE_DIR}/alarm-notify/${method}/${r}/${alarm_id}" ]
 142         then
 143         rm "${NETDATA_CACHE_DIR}/alarm-notify/${method}/${r}/${alarm_id}"
 144         return 0
 145     fi
 146
 147     return 1
 148 }
 149
 150 # -----------------------------------------------------------------------------
 151 # find the recipient's addresses per method
 152
 153 declare -A arr_slack=()
 154 declare -A arr_pushover=()
 155 declare -A arr_telegram=()
 156 declare -A arr_email=()
 157
 158 # netdata may call us with multiple recipients
 159 # so, here we find the unique ones
 160 for x in ${recipient//,/ }
 161 do
 162     # email
 163     a="${role_recipients_email[${recipient}]}"
 164     [ -z "${a}" ] && a="${DEFAULT_RECIPIENT_EMAIL}"
 165     for r in ${a//,/ }
 166     do
 167         [ "${r}" != "disabled" ] && filter_recipient_by_criticality email "${r}" && arr_email[${r/|*/}]="1"
 168     done
 169
 170     # pushover
 171     a="${role_recipients_pushover[${recipient}]}"
 172     [ -z "${a}" ] && a="${DEFAULT_RECIPIENT_PUSHOVER}"
 173     for r in ${a//,/ }
 174     do
 175         [ "${r}" != "disabled" ] && filter_recipient_by_criticality pushover "${r}" && arr_pushover[${r/|*/}]="1"
 176     done
 177
 178     # telegram
 179     a="${role_recipients_telegram[${recipient}]}"
 180     [ -z "${a}" ] && a="${DEFAULT_RECIPIENT_TELEGRAM}"
 181     for r in ${a//,/ }
 182     do
 183         [ "${r}" != "disabled" ] && filter_recipient_by_criticality telegram "${r}" && arr_telegram[${r/|*/}]="1"
 184     done
 185
 186     # slack
 187     a="${role_recipients_slack[${recipient}]}"
 188     [ -z "${a}" ] && a="${DEFAULT_RECIPIENT_SLACK}"
 189     for r in ${a//,/ }
 190     do
 191         [ "${r}" != "disabled" ] && filter_recipient_by_criticality slack "${r}" && arr_slack[${r/|*/}]="1"
 192     done
 193 done
 194
 195 # build the list of slack recipients (channels)
 196 to_slack="${!arr_slack[*]}"
 197 [ -z "${to_slack}" ] && SEND_SLACK="NO"
 198
 199 # build the list of pushover recipients (user tokens)
 200 to_pushover="${!arr_pushover[*]}"
 201 [ -z "${to_pushover}" ] && SEND_PUSHOVER="NO"
 202
 203 # check array of telegram recipients (chat ids)
 204 to_telegram="${!arr_telegram[*]}"
 205 [ -z "${to_telegram}" ] && SEND_TELEGRAM="NO"
 206
 207 # build the list of email recipients (email addresses)
 208 to_email=
 209 for x in "${!arr_email[@]}"
 210 do
 211     [ ! -z "${to_email}" ] && to_email="${to_email}, "
 212     to_email="${to_email}${x}"
 213 done
 214 [ -z "${to_email}" ] && SEND_EMAIL="NO"
 215
 216
 217 # -----------------------------------------------------------------------------
 218 # verify the delivery methods supported
 219
 220 # check slack
 221 [ -z "${SLACK_WEBHOOK_URL}" ] && SEND_SLACK="NO"
 222
 223 # check pushover
 224 [ -z "${PUSHOVER_APP_TOKEN}" ] && SEND_PUSHOVER="NO"
 225
 226 # check telegram
 227 [ -z "${TELEGRAM_BOT_TOKEN}" ] && SEND_TELEGRAM="NO"
 228
 229 if [ \( "${SEND_PUSHOVER}" = "YES" -o "${SEND_SLACK}" = "YES" -o "${SEND_TELEGRAM}" = "YES" \) -a -z "${curl}" ]
 230     then
 231     curl="$(which curl 2>/dev/null || command -v curl 2>/dev/null)"
 232     if [ -z "${curl}" ]
 233         then
 234         SEND_PUSHOVER="NO"
 235         SEND_TELEGRAM="NO"
 236         SEND_SLACK="NO"
 237     fi
 238 fi
 239
 240 if [ "${SEND_EMAIL}" = "YES" -a -z "${sendmail}" ]
 241     then
 242     sendmail="$(which sendmail 2>/dev/null || command -v sendmail 2>/dev/null)"
 243     [ -z "${sendmail}" ] && SEND_EMAIL="NO"
 244 fi
 245
 246 # check that we have at least a method enabled
 247 if [ "${SEND_EMAIL}" != "YES" -a "${SEND_PUSHOVER}" != "YES" -a "${SEND_TELEGRAM}" != "YES" -a "${SEND_SLACK}" != "YES" ]
 248     then
 249     echo >&2 "All notification methods are disabled. Not sending a notification."
 250     exit 1
 251 fi
 252
 253 # -----------------------------------------------------------------------------
 254 # get the system hostname
 255
 256 [ -z "${host}" ] && host="${NETDATA_HOSTNAME}"
 257 [ -z "${host}" ] && host="${NETDATA_REGISTRY_HOSTNAME}"
 258 [ -z "${host}" ] && host="$(hostname 2>/dev/null)"
 259
 260 # -----------------------------------------------------------------------------
 261 # get the date the alarm happened
 262
 263 date="$(date --date=@${when} 2>/dev/null)"
 264 [ -z "${date}" ] && date="$(date 2>/dev/null)"
 265
 266 # -----------------------------------------------------------------------------
 267 # URL encode a string
 268
 269 urlencode() {
 270     local string="${1}" strlen encoded pos c o
 271
 272     strlen=${#string}
 273     for (( pos=0 ; pos<strlen ; pos++ ))
 274     do
 275         c=${string:$pos:1}
 276         case "$c" in
 277             [-_.~a-zA-Z0-9])
 278                 o="${c}"
 279                 ;;
 280
 281             *)
 282                 printf -v o '%%%02x' "'$c"
 283                 ;;
 284         esac
 285         encoded+="${o}"
 286     done
 287
 288     REPLY="${encoded}"
 289     echo "${REPLY}"
 290 }
 291
 292 # -----------------------------------------------------------------------------
 293 # convert a duration in seconds, to a human readable duration
 294 # using DAYS, MINUTES, SECONDS
 295
 296 duration4human() {
 297     local s="${1}" d=0 h=0 m=0 ds="day" hs="hour" ms="minute" ss="second" ret
 298     d=$(( s / 86400 ))
 299     s=$(( s - (d * 86400) ))
 300     h=$(( s / 3600 ))
 301     s=$(( s - (h * 3600) ))
 302     m=$(( s / 60 ))
 303     s=$(( s - (m * 60) ))
 304
 305     if [ ${d} -gt 0 ]
 306     then
 307         [ ${m} -ge 30 ] && h=$(( h + 1 ))
 308         [ ${d} -gt 1 ] && ds="days"
 309         [ ${h} -gt 1 ] && hs="hours"
 310         if [ ${h} -gt 0 ]
 311         then
 312             ret="${d} ${ds} and ${h} ${hs}"
 313         else
 314             ret="${d} ${ds}"
 315         fi
 316     elif [ ${h} -gt 0 ]
 317     then
 318         [ ${s} -ge 30 ] && m=$(( m + 1 ))
 319         [ ${h} -gt 1 ] && hs="hours"
 320         [ ${m} -gt 1 ] && ms="minutes"
 321         if [ ${m} -gt 0 ]
 322         then
 323             ret="${h} ${hs} and ${m} ${ms}"
 324         else
 325             ret="${h} ${hs}"
 326         fi
 327     elif [ ${m} -gt 0 ]
 328     then
 329         [ ${m} -gt 1 ] && ms="minutes"
 330         [ ${s} -gt 1 ] && ss="seconds"
 331         if [ ${s} -gt 0 ]
 332         then
 333             ret="${m} ${ms} and ${s} ${ss}"
 334         else
 335             ret="${m} ${ms}"
 336         fi
 337     else
 338         [ ${s} -gt 1 ] && ss="seconds"
 339         ret="${s} ${ss}"
 340     fi
 341
 342     REPLY="${ret}"
 343     echo "${REPLY}"
 344 }
 345
 346 # -----------------------------------------------------------------------------
 347 # email sender
 348
 349 send_email() {
 350     local ret=
 351     if [ "${SEND_EMAIL}" = "YES" ]
 352         then
 353
 354         "${sendmail}" -t
 355         ret=$?
 356
 357         if [ $ret -eq 0 ]
 358         then
 359             echo >&2 "${me}: Sent email notification for: ${host} ${chart}.${name} is ${status} to '${to_email}'"
 360             return 0
 361         else
 362             echo >&2 "${me}: Failed to send email notification for: ${host} ${chart}.${name} is ${status} to '${to_email}' with error code ${ret}."
 363             return 1
 364         fi
 365     fi
 366
 367     return 1
 368 }
 369
 370 # -----------------------------------------------------------------------------
 371 # pushover sender
 372
 373 send_pushover() {
 374     local apptoken="${1}" usertokens="${2}" when="${3}" url="${4}" status="${5}" title="${6}" message="${7}" httpcode sent=0 user priority
 375
 376     if [ "${SEND_PUSHOVER}" = "YES" -a ! -z "${apptoken}" -a ! -z "${usertokens}" -a ! -z "${title}" -a ! -z "${message}" ]
 377         then
 378
 379         # https://pushover.net/api
 380         priority=-2
 381         case "${status}" in
 382             CLEAR) priority=-1;;   # low priority: no sound or vibration
 383             WARNING) priotity=0;;  # normal priority: respect quiet hours
 384             CRITICAL) priority=1;; # high priority: bypass quiet hours
 385             *) priority=-2;;       # lowest priority: no notification at all
 386         esac
 387
 388         for user in ${usertokens}
 389         do
 390             httpcode=$(${curl} --write-out %{http_code} --silent --output /dev/null \
 391                 --form-string "token=${apptoken}" \
 392                 --form-string "user=${user}" \
 393                 --form-string "html=1" \
 394                 --form-string "title=${title}" \
 395                 --form-string "message=${message}" \
 396                 --form-string "timestamp=${when}" \
 397                 --form-string "url=${url}" \
 398                 --form-string "url_title=Open netdata dashboard to view the alarm" \
 399                 --form-string "priority=${priority}" \
 400                 https://api.pushover.net/1/messages.json)
 401
 402             if [ "${httpcode}" == "200" ]
 403             then
 404                 echo >&2 "${me}: Sent pushover notification for: ${host} ${chart}.${name} is ${status} to '${user}'"
 405                 sent=$((sent + 1))
 406             else
 407                 echo >&2 "${me}: Failed to send pushover notification for: ${host} ${chart}.${name} is ${status} to '${user}' with HTTP error code ${httpcode}."
 408             fi
 409         done
 410
 411         [ ${sent} -gt 0 ] && return 0
 412     fi
 413
 414     return 1
 415 }
 416
 417
 418 # -----------------------------------------------------------------------------
 419 # telegram sender
 420
 421 send_telegram() {
 422     local bottoken="${1}" chatids="${2}" message="${3}" httpcode sent=0 chatid disableNotification=""
 423
 424     if [ "${status}" = "CLEAR" ]; then disableNotification="--data-urlencode disable_notification=true"; fi
 425
 426     if [ "${SEND_TELEGRAM}" = "YES" -a ! -z "${bottoken}" -a ! -z "${chatids}" -a ! -z "${message}" ];
 427     then
 428         for chatid in ${chatids}
 429         do
 430             # https://core.telegram.org/bots/api#sendmessage
 431             httpcode=$(${curl} --write-out %{http_code} --silent --output /dev/null ${disableNotification} \
 432                 --data-urlencode "parse_mode=HTML" \
 433                 --data-urlencode "disable_web_page_preview=true" \
 434                 --data-urlencode "text=$message" \
 435                 "https://api.telegram.org/bot${bottoken}/sendMessage?chat_id=$chatid")
 436
 437             if [ "${httpcode}" == "200" ]
 438             then
 439                 echo >&2 "${me}: Sent telegram notification for: ${host} ${chart}.${name} is ${status} to '${chatid}'"
 440                 sent=$((sent + 1))
 441             elif [ "${httpcode}" == "401" ]
 442             then
 443                 echo >&2 "${me}: Failed to send telegram notification for: ${host} ${chart}.${name} is ${status} to '${chatid}': Wrong bot token."
 444             else
 445                 echo >&2 "${me}: Failed to send telegram notification for: ${host} ${chart}.${name} is ${status} to '${chatid}' with HTTP error code ${httpcode}."
 446             fi
 447         done
 448
 449         [ ${sent} -gt 0 ] && return 0
 450     fi
 451
 452     return 1
 453 }
 454
 455 # -----------------------------------------------------------------------------
 456 # slack sender
 457
 458 send_slack() {
 459     local webhook="${1}" channels="${2}" httpcode sent=0 channel color payload
 460
 461     [ "${SEND_SLACK}" != "YES" ] && return 1
 462
 463     case "${status}" in
 464         WARNING) color="warning" ;;
 465         CRITICAL) color="danger" ;;
 466         CLEAR) color="good" ;;
 467         *) color="#777777" ;;
 468     esac
 469
 470     for channel in ${channels}
 471     do
 472         payload="$(cat <<EOF
 473         {
 474             "channel": "#${channel}",
 475             "username": "netdata on ${host}",
 476             "icon_url": "${images_base_url}/images/seo-performance-128.png",
 477             "text": "${host} ${status_message}, \`${chart}\` (_${family}_), *${alarm}*",
 478             "attachments": [
 479                 {
 480                     "fallback": "${alarm} - ${chart} (${family}) - ${info}",
 481                     "color": "${color}",
 482                     "title": "${alarm}",
 483                     "title_link": "${goto_url}",
 484                     "text": "${info}",
 485                     "fields": [
 486                         {
 487                             "title": "${chart}",
 488                             "short": true
 489                         },
 490                         {
 491                             "title": "${family}",
 492                             "short": true
 493                         }
 494                     ],
 495                     "thumb_url": "${image}",
 496                     "footer": "<${goto_url}|${host}>",
 497                     "ts": ${when}
 498                 }
 499             ]
 500         }
 501 EOF
 502         )"
 503
 504         httpcode=$(${curl} --write-out %{http_code} --silent --output /dev/null -X POST --data-urlencode "payload=${payload}" "${webhook}")
 505         if [ "${httpcode}" == "200" ]
 506         then
 507             echo >&2 "${me}: Sent slack notification for: ${host} ${chart}.${name} is ${status} to '${channel}'"
 508             sent=$((sent + 1))
 509         else
 510             echo >&2 "${me}: Failed to send slack notification for: ${host} ${chart}.${name} is ${status} to '${channel}', with HTTP error code ${httpcode}."
 511         fi
 512     done
 513
 514     [ ${sent} -gt 0 ] && return 0
 515
 516     return 1
 517 }
 518
 519
 520 # -----------------------------------------------------------------------------
 521 # prepare the content of the notification
 522
 523 # the url to send the user on click
 524 urlencode "${NETDATA_REGISTRY_HOSTNAME}" >/dev/null; url_host="${REPLY}"
 525 urlencode "${chart}" >/dev/null; url_chart="${REPLY}"
 526 urlencode "${family}" >/dev/null; url_family="${REPLY}"
 527 urlencode "${name}" >/dev/null; url_name="${REPLY}"
 528 goto_url="${NETDATA_REGISTRY_URL}/goto-host-from-alarm.html?host=${url_host}&chart=${url_chart}&family=${url_family}&alarm=${url_name}&alarm_unique_id=${unique_id}&alarm_id=${alarm_id}&alarm_event_id=${event_id}"
 529
 530 # the severity of the alarm
 531 severity="${status}"
 532
 533 # the time the alarm was raised
 534 duration4human ${duration} >/dev/null; duration_txt="${REPLY}"
 535 duration4human ${non_clear_duration} >/dev/null; non_clear_duration_txt="${REPLY}"
 536 raised_for="(was ${old_status,,} for ${duration_txt})"
 537
 538 # the key status message
 539 status_message="status unknown"
 540
 541 # the color of the alarm
 542 color="grey"
 543
 544 # the alarm value
 545 alarm="${name//_/ } = ${value} ${units}"
 546
 547 # the image of the alarm
 548 image="${images_base_url}/images/seo-performance-128.png"
 549
 550 # prepare the title based on status
 551 case "${status}" in
 552         CRITICAL)
 553         image="${images_base_url}/images/alert-128-red.png"
 554         status_message="is critical"
 555         color="#ca414b"
 556         ;;
 557
 558     WARNING)
 559         image="${images_base_url}/images/alert-128-orange.png"
 560         status_message="needs attention"
 561         color="#caca4b"
 562                 ;;
 563
 564         CLEAR)
 565         image="${images_base_url}/images/check-mark-2-128-green.png"
 566         status_message="recovered"
 567                 color="#77ca6d"
 568
 569                 # don't show the value when the status is CLEAR
 570                 # for certain alarms, this value might not have any meaning
 571                 alarm="${name//_/ } ${raised_for}"
 572                 ;;
 573 esac
 574
 575 if [ "${status}" = "CLEAR" ]
 576 then
 577     severity="Recovered from ${old_status}"
 578     if [ $non_clear_duration -gt $duration ]
 579     then
 580         raised_for="(alarm was raised for ${non_clear_duration_txt})"
 581     fi
 582
 583 elif [ "${old_status}" = "WARNING" -a "${status}" = "CRITICAL" ]
 584 then
 585     severity="Escalated to ${status}"
 586     if [ $non_clear_duration -gt $duration ]
 587     then
 588         raised_for="(alarm is raised for ${non_clear_duration_txt})"
 589     fi
 590
 591 elif [ "${old_status}" = "CRITICAL" -a "${status}" = "WARNING" ]
 592 then
 593     severity="Demoted to ${status}"
 594     if [ $non_clear_duration -gt $duration ]
 595     then
 596         raised_for="(alarm is raised for ${non_clear_duration_txt})"
 597     fi
 598
 599 else
 600     raised_for=
 601 fi
 602
 603 # prepare HTML versions of elements
 604 info_html=
 605 [ ! -z "${info}" ] && info_html=" <small><br/>${info}</small>"
 606
 607 raised_for_html=
 608 [ ! -z "${raised_for}" ] && raised_for_html="<br/><small>${raised_for}</small>"
 609
 610 # -----------------------------------------------------------------------------
 611 # send the slack notification
 612
 613 # slack aggregates posts from the same username
 614 # so we use "${host} ${status}" as the bot username, to make them diff
 615
 616 send_slack "${SLACK_WEBHOOK_URL}" "${to_slack}"
 617 SENT_SLACK=$?
 618
 619 # -----------------------------------------------------------------------------
 620 # send the pushover notification
 621
 622 send_pushover "${PUSHOVER_APP_TOKEN}" "${to_pushover}" "${when}" "${goto_url}" "${status}" "${host} ${status_message} - ${name//_/ } - ${chart}" "
 623 <font color=\"${color}\"><b>${alarm}</b></font>${info_html}<br/>&nbsp;
 624 <small><b>${chart}</b><br/>Chart<br/>&nbsp;</small>
 625 <small><b>${family}</b><br/>Family<br/>&nbsp;</small>
 626 <small><b>${severity}</b><br/>Severity<br/>&nbsp;</small>
 627 <small><b>${date}${raised_for_html}</b><br/>Time<br/>&nbsp;</small>
 628 <a href=\"${goto_url}\">View Netdata</a><br/>&nbsp;
 629 <small><small>The source of this alarm is line ${src}</small></small>
 630 "
 631
 632 SENT_PUSHOVER=$?
 633
 634 # -----------------------------------------------------------------------------
 635 # send the telegram.org message
 636
 637 # https://core.telegram.org/bots/api#formatting-options
 638 telegram_message="<b>${severity}"
 639 [ "${status_message}" != "recovered" ] && telegram_message="${telegram_message}, ${status_message}"
 640 telegram_message="${telegram_message}
 641 ${chart} (${family})</b>
 642 <a href=\"${goto_url}\">${alarm}</a>
 643 <i>${info}</i>"
 644
 645 send_telegram "${TELEGRAM_BOT_TOKEN}" "${to_telegram}" "${telegram_message}"
 646
 647 SENT_TELEGRAM=$?
 648
 649 # -----------------------------------------------------------------------------
 650 # send the email
 651
 652 send_email <<EOF
 653 To: ${to_email}
 654 Subject: ${host} ${status_message} - ${name//_/ } - ${chart}
 655 Content-Type: text/html
 656
 657 <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
 658 <html xmlns="http://www.w3.org/1999/xhtml" style="font-family: 'Helvetica Neue', 'Helvetica', Helvetica, Arial, sans-serif; box-sizing: border-box; font-size: 14px; margin: 0; padding: 0;">
 659 <body style="font-family: 'Helvetica Neue', 'Helvetica', Helvetica, Arial, sans-serif; font-size: 14px; width: 100% !important; min-height: 100%; line-height: 1.6; background: #f6f6f6; margin:0; padding: 0;">
 660 <table>
 661     <tbody>
 662     <tr>
 663         <td style="vertical-align: top;" valign="top"></td>
 664         <td width="700" style="vertical-align: top; display: block !important; max-width: 700px !important; clear: both !important; margin: 0 auto; padding: 0;" valign="top">
 665             <div style="max-width: 700px; display: block; margin: 0 auto; padding: 20px;">
 666                 <table width="100%" cellpadding="0" cellspacing="0" style="background: #fff; border: 1px solid #e9e9e9;">
 667                     <tbody>
 668                     <tr>
 669                         <td bgcolor="#eee" style="padding: 5px 20px 5px 20px; background-color: #eee;">
 670                             <div style="font-family: 'Helvetica Neue', 'Helvetica', Helvetica, Arial, sans-serif; font-size: 20px; color: #777; font-weight: bold;">netdata notification</div>
 671                         </td>
 672                     </tr>
 673                     <tr>
 674                         <td bgcolor="${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: ${color};" align="center" valign="top">
 675                             <h1 style="font-family: 'Helvetica Neue', 'Helvetica', Helvetica, Arial, sans-serif; font-weight: 400; margin: 0;">${host} ${status_message}</h1>
 676                         </td>
 677                     </tr>
 678                     <tr>
 679                         <td style="vertical-align: top;" valign="top">
 680                             <div style="margin: 0; padding: 20px; max-width: 700px;">
 681                                 <table width="100%" cellpadding="0" cellspacing="0" style="max-width:700px">
 682                                     <tbody>
 683                                     <tr>
 684                                         <td style="font-family: 'Helvetica Neue', 'Helvetica', Helvetica, Arial, sans-serif; font-size: 18px; vertical-align: top; margin: 0; padding:0 0 20px;" align="left" valign="top">
 685                                             <span>${chart}</span>
 686                                             <span style="display: block; color: #666666; font-size: 12px; font-weight: 300; line-height: 1; text-transform: uppercase;">Chart</span>
 687                                         </td>
 688                                     </tr>
 689                                     <tr style="margin: 0; padding: 0;">
 690                                         <td style="font-family: 'Helvetica Neue', 'Helvetica', Helvetica, Arial, sans-serif; font-size: 18px; vertical-align: top; margin: 0; padding: 0 0 20px;" align="left" valign="top">
 691                                             <span><b>${alarm}</b>${info_html}</span>
 692                                             <span style="display: block; color: #666666; font-size: 12px; font-weight: 300; line-height: 1; text-transform: uppercase;">Alarm</span>
 693                                         </td>
 694                                     </tr>
 695                                     <tr>
 696                                         <td style="font-family: 'Helvetica Neue', 'Helvetica', Helvetica, Arial, sans-serif; font-size: 18px; vertical-align: top; margin: 0; padding: 0 0 20px;" align="left" valign="top">
 697                                             <span>${family}</span>
 698                                             <span style="display: block; color: #666666; font-size: 12px; font-weight: 300; line-height: 1; text-transform: uppercase;">Family</span>
 699                                         </td>
 700                                     </tr>
 701                                     <tr style="margin: 0; padding: 0;">
 702                                         <td style="font-family: 'Helvetica Neue', 'Helvetica', Helvetica, Arial, sans-serif; font-size: 18px; vertical-align: top; margin: 0; padding: 0 0 20px;" align="left" valign="top">
 703                                             <span>${severity}</span>
 704                                             <span style="display: block; color: #666666; font-size: 12px; font-weight: 300; line-height: 1; text-transform: uppercase;">Severity</span>
 705                                         </td>
 706                                     </tr>
 707                                     <tr style="margin: 0; padding: 0;">
 708                                         <td style="font-family: 'Helvetica Neue', 'Helvetica', Helvetica, Arial, sans-serif; font-size: 18px; vertical-align: top; margin: 0; padding: 0 0 20px;" align="left" valign="top"><span>${date}</span>
 709                                             <span>${raised_for_html}</span> <span style="display: block; color: #666666; font-size: 12px; font-weight: 300; line-height: 1; text-transform: uppercase;">Time</span>
 710                                         </td>
 711                                     </tr>
 712                                     <tr style="margin: 0; padding: 0;">
 713                                         <td style="font-family: 'Helvetica Neue', 'Helvetica', Helvetica, Arial, sans-serif; font-size: 18px; vertical-align: top; margin: 0; padding: 0 0 20px;">
 714                                             <a href="${goto_url}" style="font-size: 14px; color: #ffffff; text-decoration: none; line-height: 1.5; font-weight: bold; text-align: center; display: inline-block; text-transform: capitalize; background: #35568d; border-width: 1px; border-style: solid; border-color: #2b4c86; margin: 0; padding: 10px 15px;" target="_blank">View Netdata</a>
 715                                         </td>
 716                                     </tr>
 717                                     <tr style="text-align: center; margin: 0; padding: 0;">
 718                                         <td style="font-family: 'Helvetica Neue', 'Helvetica', Helvetica, Arial, sans-serif; font-size: 11px; vertical-align: top; margin: 0; padding: 10px 0 0 0; color: #666666;" align="center" valign="bottom">The source of this alarm is line <code>${src}</code>
 719                                         </td>
 720                                     </tr>
 721                                     <tr style="text-align: center; margin: 0; padding: 0;">
 722                                         <td style="font-family: 'Helvetica Neue', 'Helvetica', Helvetica, Arial, sans-serif; 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
 723                                             <a href="https://mynetdata.io/" target="_blank">netdata</a>, the real-time performance monitoring.
 724                                         </td>
 725                                     </tr>
 726                                     </tbody>
 727                                 </table>
 728                             </div>
 729                         </td>
 730                     </tr>
 731                     </tbody>
 732                 </table>
 733             </div>
 734         </td>
 735     </tr>
 736     </tbody>
 737 </table>
 738 </body>
 739 </html>
 740 EOF
 741
 742 SENT_EMAIL=$?
 743
 744 # -----------------------------------------------------------------------------
 745 # let netdata know
 746
 747 # we did send somehting
 748 [ ${SENT_EMAIL} -eq 0 -o ${SENT_PUSHOVER} -eq 0 -o ${SENT_TELEGRAM} -eq 0 -o ${SENT_SLACK} -eq 0 ] && exit 0
 749
 750 # we did not send anything
 751 exit 1