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 ${recipient//,/ }
 161 do
 162     # the recipient 'silent' means, don't send a notification for this event
 163     [ "${x}" = "silent" ] && continue
 164
 165     # email
 166     a="${role_recipients_email[${recipient}]}"
 167     [ -z "${a}" ] && a="${DEFAULT_RECIPIENT_EMAIL}"
 168     for r in ${a//,/ }
 169     do
 170         [ "${r}" != "disabled" ] && filter_recipient_by_criticality email "${r}" && arr_email[${r/|*/}]="1"
 171     done
 172
 173     # pushover
 174     a="${role_recipients_pushover[${recipient}]}"
 175     [ -z "${a}" ] && a="${DEFAULT_RECIPIENT_PUSHOVER}"
 176     for r in ${a//,/ }
 177     do
 178         [ "${r}" != "disabled" ] && filter_recipient_by_criticality pushover "${r}" && arr_pushover[${r/|*/}]="1"
 179     done
 180
 181     # telegram
 182     a="${role_recipients_telegram[${recipient}]}"
 183     [ -z "${a}" ] && a="${DEFAULT_RECIPIENT_TELEGRAM}"
 184     for r in ${a//,/ }
 185     do
 186         [ "${r}" != "disabled" ] && filter_recipient_by_criticality telegram "${r}" && arr_telegram[${r/|*/}]="1"
 187     done
 188
 189     # slack
 190     a="${role_recipients_slack[${recipient}]}"
 191     [ -z "${a}" ] && a="${DEFAULT_RECIPIENT_SLACK}"
 192     for r in ${a//,/ }
 193     do
 194         [ "${r}" != "disabled" ] && filter_recipient_by_criticality slack "${r}" && arr_slack[${r/|*/}]="1"
 195     done
 196 done
 197
 198 # build the list of slack recipients (channels)
 199 to_slack="${!arr_slack[*]}"
 200 [ -z "${to_slack}" ] && SEND_SLACK="NO"
 201
 202 # build the list of pushover recipients (user tokens)
 203 to_pushover="${!arr_pushover[*]}"
 204 [ -z "${to_pushover}" ] && SEND_PUSHOVER="NO"
 205
 206 # check array of telegram recipients (chat ids)
 207 to_telegram="${!arr_telegram[*]}"
 208 [ -z "${to_telegram}" ] && SEND_TELEGRAM="NO"
 209
 210 # build the list of email recipients (email addresses)
 211 to_email=
 212 for x in "${!arr_email[@]}"
 213 do
 214     [ ! -z "${to_email}" ] && to_email="${to_email}, "
 215     to_email="${to_email}${x}"
 216 done
 217 [ -z "${to_email}" ] && SEND_EMAIL="NO"
 218
 219
 220 # -----------------------------------------------------------------------------
 221 # verify the delivery methods supported
 222
 223 # check slack
 224 [ -z "${SLACK_WEBHOOK_URL}" ] && SEND_SLACK="NO"
 225
 226 # check pushover
 227 [ -z "${PUSHOVER_APP_TOKEN}" ] && SEND_PUSHOVER="NO"
 228
 229 # check telegram
 230 [ -z "${TELEGRAM_BOT_TOKEN}" ] && SEND_TELEGRAM="NO"
 231
 232 if [ \( "${SEND_PUSHOVER}" = "YES" -o "${SEND_SLACK}" = "YES" -o "${SEND_TELEGRAM}" = "YES" \) -a -z "${curl}" ]
 233     then
 234     curl="$(which curl 2>/dev/null || command -v curl 2>/dev/null)"
 235     if [ -z "${curl}" ]
 236         then
 237         SEND_PUSHOVER="NO"
 238         SEND_TELEGRAM="NO"
 239         SEND_SLACK="NO"
 240     fi
 241 fi
 242
 243 if [ "${SEND_EMAIL}" = "YES" -a -z "${sendmail}" ]
 244     then
 245     sendmail="$(which sendmail 2>/dev/null || command -v sendmail 2>/dev/null)"
 246     [ -z "${sendmail}" ] && SEND_EMAIL="NO"
 247 fi
 248
 249 # check that we have at least a method enabled
 250 if [ "${SEND_EMAIL}" != "YES" -a "${SEND_PUSHOVER}" != "YES" -a "${SEND_TELEGRAM}" != "YES" -a "${SEND_SLACK}" != "YES" ]
 251     then
 252     echo >&2 "All notification methods are disabled. Not sending a notification."
 253     exit 1
 254 fi
 255
 256 # -----------------------------------------------------------------------------
 257 # get the system hostname
 258
 259 [ -z "${host}" ] && host="${NETDATA_HOSTNAME}"
 260 [ -z "${host}" ] && host="${NETDATA_REGISTRY_HOSTNAME}"
 261 [ -z "${host}" ] && host="$(hostname 2>/dev/null)"
 262
 263 # -----------------------------------------------------------------------------
 264 # get the date the alarm happened
 265
 266 date="$(date --date=@${when} 2>/dev/null)"
 267 [ -z "${date}" ] && date="$(date 2>/dev/null)"
 268
 269 # -----------------------------------------------------------------------------
 270 # URL encode a string
 271
 272 urlencode() {
 273     local string="${1}" strlen encoded pos c o
 274
 275     strlen=${#string}
 276     for (( pos=0 ; pos<strlen ; pos++ ))
 277     do
 278         c=${string:$pos:1}
 279         case "$c" in
 280             [-_.~a-zA-Z0-9])
 281                 o="${c}"
 282                 ;;
 283
 284             *)
 285                 printf -v o '%%%02x' "'$c"
 286                 ;;
 287         esac
 288         encoded+="${o}"
 289     done
 290
 291     REPLY="${encoded}"
 292     echo "${REPLY}"
 293 }
 294
 295 # -----------------------------------------------------------------------------
 296 # convert a duration in seconds, to a human readable duration
 297 # using DAYS, MINUTES, SECONDS
 298
 299 duration4human() {
 300     local s="${1}" d=0 h=0 m=0 ds="day" hs="hour" ms="minute" ss="second" ret
 301     d=$(( s / 86400 ))
 302     s=$(( s - (d * 86400) ))
 303     h=$(( s / 3600 ))
 304     s=$(( s - (h * 3600) ))
 305     m=$(( s / 60 ))
 306     s=$(( s - (m * 60) ))
 307
 308     if [ ${d} -gt 0 ]
 309     then
 310         [ ${m} -ge 30 ] && h=$(( h + 1 ))
 311         [ ${d} -gt 1 ] && ds="days"
 312         [ ${h} -gt 1 ] && hs="hours"
 313         if [ ${h} -gt 0 ]
 314         then
 315             ret="${d} ${ds} and ${h} ${hs}"
 316         else
 317             ret="${d} ${ds}"
 318         fi
 319     elif [ ${h} -gt 0 ]
 320     then
 321         [ ${s} -ge 30 ] && m=$(( m + 1 ))
 322         [ ${h} -gt 1 ] && hs="hours"
 323         [ ${m} -gt 1 ] && ms="minutes"
 324         if [ ${m} -gt 0 ]
 325         then
 326             ret="${h} ${hs} and ${m} ${ms}"
 327         else
 328             ret="${h} ${hs}"
 329         fi
 330     elif [ ${m} -gt 0 ]
 331     then
 332         [ ${m} -gt 1 ] && ms="minutes"
 333         [ ${s} -gt 1 ] && ss="seconds"
 334         if [ ${s} -gt 0 ]
 335         then
 336             ret="${m} ${ms} and ${s} ${ss}"
 337         else
 338             ret="${m} ${ms}"
 339         fi
 340     else
 341         [ ${s} -gt 1 ] && ss="seconds"
 342         ret="${s} ${ss}"
 343     fi
 344
 345     REPLY="${ret}"
 346     echo "${REPLY}"
 347 }
 348
 349 # -----------------------------------------------------------------------------
 350 # email sender
 351
 352 send_email() {
 353     local ret=
 354     if [ "${SEND_EMAIL}" = "YES" ]
 355         then
 356
 357         "${sendmail}" -t
 358         ret=$?
 359
 360         if [ $ret -eq 0 ]
 361         then
 362             echo >&2 "${me}: Sent email notification for: ${host} ${chart}.${name} is ${status} to '${to_email}'"
 363             return 0
 364         else
 365             echo >&2 "${me}: Failed to send email notification for: ${host} ${chart}.${name} is ${status} to '${to_email}' with error code ${ret}."
 366             return 1
 367         fi
 368     fi
 369
 370     return 1
 371 }
 372
 373 # -----------------------------------------------------------------------------
 374 # pushover sender
 375
 376 send_pushover() {
 377     local apptoken="${1}" usertokens="${2}" when="${3}" url="${4}" status="${5}" title="${6}" message="${7}" httpcode sent=0 user priority
 378
 379     if [ "${SEND_PUSHOVER}" = "YES" -a ! -z "${apptoken}" -a ! -z "${usertokens}" -a ! -z "${title}" -a ! -z "${message}" ]
 380         then
 381
 382         # https://pushover.net/api
 383         priority=-2
 384         case "${status}" in
 385             CLEAR) priority=-1;;   # low priority: no sound or vibration
 386             WARNING) priotity=0;;  # normal priority: respect quiet hours
 387             CRITICAL) priority=1;; # high priority: bypass quiet hours
 388             *) priority=-2;;       # lowest priority: no notification at all
 389         esac
 390
 391         for user in ${usertokens}
 392         do
 393             httpcode=$(${curl} --write-out %{http_code} --silent --output /dev/null \
 394                 --form-string "token=${apptoken}" \
 395                 --form-string "user=${user}" \
 396                 --form-string "html=1" \
 397                 --form-string "title=${title}" \
 398                 --form-string "message=${message}" \
 399                 --form-string "timestamp=${when}" \
 400                 --form-string "url=${url}" \
 401                 --form-string "url_title=Open netdata dashboard to view the alarm" \
 402                 --form-string "priority=${priority}" \
 403                 https://api.pushover.net/1/messages.json)
 404
 405             if [ "${httpcode}" == "200" ]
 406             then
 407                 echo >&2 "${me}: Sent pushover notification for: ${host} ${chart}.${name} is ${status} to '${user}'"
 408                 sent=$((sent + 1))
 409             else
 410                 echo >&2 "${me}: Failed to send pushover notification for: ${host} ${chart}.${name} is ${status} to '${user}' with HTTP error code ${httpcode}."
 411             fi
 412         done
 413
 414         [ ${sent} -gt 0 ] && return 0
 415     fi
 416
 417     return 1
 418 }
 419
 420
 421 # -----------------------------------------------------------------------------
 422 # telegram sender
 423
 424 send_telegram() {
 425     local bottoken="${1}" chatids="${2}" message="${3}" httpcode sent=0 chatid disableNotification=""
 426
 427     if [ "${status}" = "CLEAR" ]; then disableNotification="--data-urlencode disable_notification=true"; fi
 428
 429     if [ "${SEND_TELEGRAM}" = "YES" -a ! -z "${bottoken}" -a ! -z "${chatids}" -a ! -z "${message}" ];
 430     then
 431         for chatid in ${chatids}
 432         do
 433             # https://core.telegram.org/bots/api#sendmessage
 434             httpcode=$(${curl} --write-out %{http_code} --silent --output /dev/null ${disableNotification} \
 435                 --data-urlencode "parse_mode=HTML" \
 436                 --data-urlencode "disable_web_page_preview=true" \
 437                 --data-urlencode "text=$message" \
 438                 "https://api.telegram.org/bot${bottoken}/sendMessage?chat_id=$chatid")
 439
 440             if [ "${httpcode}" == "200" ]
 441             then
 442                 echo >&2 "${me}: Sent telegram notification for: ${host} ${chart}.${name} is ${status} to '${chatid}'"
 443                 sent=$((sent + 1))
 444             elif [ "${httpcode}" == "401" ]
 445             then
 446                 echo >&2 "${me}: Failed to send telegram notification for: ${host} ${chart}.${name} is ${status} to '${chatid}': Wrong bot token."
 447             else
 448                 echo >&2 "${me}: Failed to send telegram notification for: ${host} ${chart}.${name} is ${status} to '${chatid}' with HTTP error code ${httpcode}."
 449             fi
 450         done
 451
 452         [ ${sent} -gt 0 ] && return 0
 453     fi
 454
 455     return 1
 456 }
 457
 458 # -----------------------------------------------------------------------------
 459 # slack sender
 460
 461 send_slack() {
 462     local webhook="${1}" channels="${2}" httpcode sent=0 channel color payload
 463
 464     [ "${SEND_SLACK}" != "YES" ] && return 1
 465
 466     case "${status}" in
 467         WARNING) color="warning" ;;
 468         CRITICAL) color="danger" ;;
 469         CLEAR) color="good" ;;
 470         *) color="#777777" ;;
 471     esac
 472
 473     for channel in ${channels}
 474     do
 475         payload="$(cat <<EOF
 476         {
 477             "channel": "#${channel}",
 478             "username": "netdata on ${host}",
 479             "icon_url": "${images_base_url}/images/seo-performance-128.png",
 480             "text": "${host} ${status_message}, \`${chart}\` (_${family}_), *${alarm}*",
 481             "attachments": [
 482                 {
 483                     "fallback": "${alarm} - ${chart} (${family}) - ${info}",
 484                     "color": "${color}",
 485                     "title": "${alarm}",
 486                     "title_link": "${goto_url}",
 487                     "text": "${info}",
 488                     "fields": [
 489                         {
 490                             "title": "${chart}",
 491                             "short": true
 492                         },
 493                         {
 494                             "title": "${family}",
 495                             "short": true
 496                         }
 497                     ],
 498                     "thumb_url": "${image}",
 499                     "footer": "<${goto_url}|${host}>",
 500                     "ts": ${when}
 501                 }
 502             ]
 503         }
 504 EOF
 505         )"
 506
 507         httpcode=$(${curl} --write-out %{http_code} --silent --output /dev/null -X POST --data-urlencode "payload=${payload}" "${webhook}")
 508         if [ "${httpcode}" == "200" ]
 509         then
 510             echo >&2 "${me}: Sent slack notification for: ${host} ${chart}.${name} is ${status} to '${channel}'"
 511             sent=$((sent + 1))
 512         else
 513             echo >&2 "${me}: Failed to send slack notification for: ${host} ${chart}.${name} is ${status} to '${channel}', with HTTP error code ${httpcode}."
 514         fi
 515     done
 516
 517     [ ${sent} -gt 0 ] && return 0
 518
 519     return 1
 520 }
 521
 522
 523 # -----------------------------------------------------------------------------
 524 # prepare the content of the notification
 525
 526 # the url to send the user on click
 527 urlencode "${NETDATA_REGISTRY_HOSTNAME}" >/dev/null; url_host="${REPLY}"
 528 urlencode "${chart}" >/dev/null; url_chart="${REPLY}"
 529 urlencode "${family}" >/dev/null; url_family="${REPLY}"
 530 urlencode "${name}" >/dev/null; url_name="${REPLY}"
 531 goto_url="${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=${event_id}"
 532
 533 # the severity of the alarm
 534 severity="${status}"
 535
 536 # the time the alarm was raised
 537 duration4human ${duration} >/dev/null; duration_txt="${REPLY}"
 538 duration4human ${non_clear_duration} >/dev/null; non_clear_duration_txt="${REPLY}"
 539 raised_for="(was ${old_status,,} for ${duration_txt})"
 540
 541 # the key status message
 542 status_message="status unknown"
 543
 544 # the color of the alarm
 545 color="grey"
 546
 547 # the alarm value
 548 alarm="${name//_/ } = ${value} ${units}"
 549
 550 # the image of the alarm
 551 image="${images_base_url}/images/seo-performance-128.png"
 552
 553 # prepare the title based on status
 554 case "${status}" in
 555         CRITICAL)
 556         image="${images_base_url}/images/alert-128-red.png"
 557         status_message="is critical"
 558         color="#ca414b"
 559         ;;
 560
 561     WARNING)
 562         image="${images_base_url}/images/alert-128-orange.png"
 563         status_message="needs attention"
 564         color="#caca4b"
 565                 ;;
 566
 567         CLEAR)
 568         image="${images_base_url}/images/check-mark-2-128-green.png"
 569         status_message="recovered"
 570                 color="#77ca6d"
 571
 572                 # don't show the value when the status is CLEAR
 573                 # for certain alarms, this value might not have any meaning
 574                 alarm="${name//_/ } ${raised_for}"
 575                 ;;
 576 esac
 577
 578 if [ "${status}" = "CLEAR" ]
 579 then
 580     severity="Recovered from ${old_status}"
 581     if [ $non_clear_duration -gt $duration ]
 582     then
 583         raised_for="(alarm was raised for ${non_clear_duration_txt})"
 584     fi
 585
 586 elif [ "${old_status}" = "WARNING" -a "${status}" = "CRITICAL" ]
 587 then
 588     severity="Escalated to ${status}"
 589     if [ $non_clear_duration -gt $duration ]
 590     then
 591         raised_for="(alarm is raised for ${non_clear_duration_txt})"
 592     fi
 593
 594 elif [ "${old_status}" = "CRITICAL" -a "${status}" = "WARNING" ]
 595 then
 596     severity="Demoted to ${status}"
 597     if [ $non_clear_duration -gt $duration ]
 598     then
 599         raised_for="(alarm is raised for ${non_clear_duration_txt})"
 600     fi
 601
 602 else
 603     raised_for=
 604 fi
 605
 606 # prepare HTML versions of elements
 607 info_html=
 608 [ ! -z "${info}" ] && info_html=" <small><br/>${info}</small>"
 609
 610 raised_for_html=
 611 [ ! -z "${raised_for}" ] && raised_for_html="<br/><small>${raised_for}</small>"
 612
 613 # -----------------------------------------------------------------------------
 614 # send the slack notification
 615
 616 # slack aggregates posts from the same username
 617 # so we use "${host} ${status}" as the bot username, to make them diff
 618
 619 send_slack "${SLACK_WEBHOOK_URL}" "${to_slack}"
 620 SENT_SLACK=$?
 621
 622 # -----------------------------------------------------------------------------
 623 # send the pushover notification
 624
 625 send_pushover "${PUSHOVER_APP_TOKEN}" "${to_pushover}" "${when}" "${goto_url}" "${status}" "${host} ${status_message} - ${name//_/ } - ${chart}" "
 626 <font color=\"${color}\"><b>${alarm}</b></font>${info_html}<br/>&nbsp;
 627 <small><b>${chart}</b><br/>Chart<br/>&nbsp;</small>
 628 <small><b>${family}</b><br/>Family<br/>&nbsp;</small>
 629 <small><b>${severity}</b><br/>Severity<br/>&nbsp;</small>
 630 <small><b>${date}${raised_for_html}</b><br/>Time<br/>&nbsp;</small>
 631 <a href=\"${goto_url}\">View Netdata</a><br/>&nbsp;
 632 <small><small>The source of this alarm is line ${src}</small></small>
 633 "
 634
 635 SENT_PUSHOVER=$?
 636
 637 # -----------------------------------------------------------------------------
 638 # send the telegram.org message
 639
 640 # https://core.telegram.org/bots/api#formatting-options
 641 telegram_message="<b>${severity}"
 642 [ "${status_message}" != "recovered" ] && telegram_message="${telegram_message}, ${status_message}"
 643 telegram_message="${telegram_message}
 644 ${chart} (${family})</b>
 645 <a href=\"${goto_url}\">${alarm}</a>
 646 <i>${info}</i>"
 647
 648 send_telegram "${TELEGRAM_BOT_TOKEN}" "${to_telegram}" "${telegram_message}"
 649
 650 SENT_TELEGRAM=$?
 651
 652 # -----------------------------------------------------------------------------
 653 # send the email
 654
 655 send_email <<EOF
 656 To: ${to_email}
 657 Subject: ${host} ${status_message} - ${name//_/ } - ${chart}
 658 Content-Type: text/html
 659
 660 <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
 661 <html xmlns="http://www.w3.org/1999/xhtml" style="font-family: 'Helvetica Neue', 'Helvetica', Helvetica, Arial, sans-serif; box-sizing: border-box; font-size: 14px; margin: 0; padding: 0;">
 662 <body style="font-family: 'Helvetica Neue', 'Helvetica', Helvetica, Arial, sans-serif; font-size: 14px; width: 100% !important; min-height: 100%; line-height: 1.6; background: #f6f6f6; margin:0; padding: 0;">
 663 <table>
 664     <tbody>
 665     <tr>
 666         <td style="vertical-align: top;" valign="top"></td>
 667         <td width="700" style="vertical-align: top; display: block !important; max-width: 700px !important; clear: both !important; margin: 0 auto; padding: 0;" valign="top">
 668             <div style="max-width: 700px; display: block; margin: 0 auto; padding: 20px;">
 669                 <table width="100%" cellpadding="0" cellspacing="0" style="background: #fff; border: 1px solid #e9e9e9;">
 670                     <tbody>
 671                     <tr>
 672                         <td bgcolor="#eee" style="padding: 5px 20px 5px 20px; background-color: #eee;">
 673                             <div style="font-family: 'Helvetica Neue', 'Helvetica', Helvetica, Arial, sans-serif; font-size: 20px; color: #777; font-weight: bold;">netdata notification</div>
 674                         </td>
 675                     </tr>
 676                     <tr>
 677                         <td bgcolor="${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: ${color};" align="center" valign="top">
 678                             <h1 style="font-family: 'Helvetica Neue', 'Helvetica', Helvetica, Arial, sans-serif; font-weight: 400; margin: 0;">${host} ${status_message}</h1>
 679                         </td>
 680                     </tr>
 681                     <tr>
 682                         <td style="vertical-align: top;" valign="top">
 683                             <div style="margin: 0; padding: 20px; max-width: 700px;">
 684                                 <table width="100%" cellpadding="0" cellspacing="0" style="max-width:700px">
 685                                     <tbody>
 686                                     <tr>
 687                                         <td style="font-family: 'Helvetica Neue', 'Helvetica', Helvetica, Arial, sans-serif; font-size: 18px; vertical-align: top; margin: 0; padding:0 0 20px;" align="left" valign="top">
 688                                             <span>${chart}</span>
 689                                             <span style="display: block; color: #666666; font-size: 12px; font-weight: 300; line-height: 1; text-transform: uppercase;">Chart</span>
 690                                         </td>
 691                                     </tr>
 692                                     <tr style="margin: 0; padding: 0;">
 693                                         <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">
 694                                             <span><b>${alarm}</b>${info_html}</span>
 695                                             <span style="display: block; color: #666666; font-size: 12px; font-weight: 300; line-height: 1; text-transform: uppercase;">Alarm</span>
 696                                         </td>
 697                                     </tr>
 698                                     <tr>
 699                                         <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">
 700                                             <span>${family}</span>
 701                                             <span style="display: block; color: #666666; font-size: 12px; font-weight: 300; line-height: 1; text-transform: uppercase;">Family</span>
 702                                         </td>
 703                                     </tr>
 704                                     <tr style="margin: 0; padding: 0;">
 705                                         <td style="font-family: 'Helvetica Neue', 'Helvetica', Helvetica, Arial, sans-serif; font-size: 18px; vertical-align: top; margin: 0; padding: 0 0 20px;" align="left" valign="top">
 706                                             <span>${severity}</span>
 707                                             <span style="display: block; color: #666666; font-size: 12px; font-weight: 300; line-height: 1; text-transform: uppercase;">Severity</span>
 708                                         </td>
 709                                     </tr>
 710                                     <tr style="margin: 0; padding: 0;">
 711                                         <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>${date}</span>
 712                                             <span>${raised_for_html}</span> <span style="display: block; color: #666666; font-size: 12px; font-weight: 300; line-height: 1; text-transform: uppercase;">Time</span>
 713                                         </td>
 714                                     </tr>
 715                                     <tr style="margin: 0; padding: 0;">
 716                                         <td style="font-family: 'Helvetica Neue', 'Helvetica', Helvetica, Arial, sans-serif; font-size: 18px; vertical-align: top; margin: 0; padding: 0 0 20px;">
 717                                             <a href="${goto_url}" style="font-size: 14px; color: #ffffff; text-decoration: none; line-height: 1.5; font-weight: bold; text-align: center; display: inline-block; text-transform: capitalize; background: #35568d; border-width: 1px; border-style: solid; border-color: #2b4c86; margin: 0; padding: 10px 15px;" target="_blank">View Netdata</a>
 718                                         </td>
 719                                     </tr>
 720                                     <tr style="text-align: center; margin: 0; padding: 0;">
 721                                         <td style="font-family: 'Helvetica Neue', 'Helvetica', Helvetica, Arial, sans-serif; font-size: 11px; vertical-align: top; margin: 0; padding: 10px 0 0 0; color: #666666;" align="center" valign="bottom">The source of this alarm is line <code>${src}</code>
 722                                         </td>
 723                                     </tr>
 724                                     <tr style="text-align: center; margin: 0; padding: 0;">
 725                                         <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
 726                                             <a href="https://mynetdata.io/" target="_blank">netdata</a>, the real-time performance monitoring.
 727                                         </td>
 728                                     </tr>
 729                                     </tbody>
 730                                 </table>
 731                             </div>
 732                         </td>
 733                     </tr>
 734                     </tbody>
 735                 </table>
 736             </div>
 737         </td>
 738     </tr>
 739     </tbody>
 740 </table>
 741 </body>
 742 </html>
 743 EOF
 744
 745 SENT_EMAIL=$?
 746
 747 # -----------------------------------------------------------------------------
 748 # let netdata know
 749
 750 # we did send somehting
 751 [ ${SENT_EMAIL} -eq 0 -o ${SENT_PUSHOVER} -eq 0 -o ${SENT_TELEGRAM} -eq 0 -o ${SENT_SLACK} -eq 0 ] && exit 0
 752
 753 # we did not send anything
 754 exit 1