Rocket.Chat notification help

329854343 · July 25, 2022, 3:33pm

Hello again,

I want to send info notification to a rocket.chat channel.

I’ve followed the official guide, but I don’t get it to work.
I use the icinga2 Director module to create the commands, one thing is diffrent in my configuration - I don’t know how to create the env = { ... variable as seen in github.

My command configuration:

zones.d/director-global/commands.conf

zones.d/director-global/commands.conf
object NotificationCommand "rocketchat" {
    import "plugin-notification-command"
    command = [ "/etc/icinga2/scripts/notify_rocketchat" ]
    arguments += {
        "-host.action_url" = "$rocketchat_host_action_url$"
        "-host.display_name" = "$host.display_name$"
        "-host.name" = "$host.name$"
        "-host.output" = "$host.output$"
        "-host.state" = "$host.state$"
        "-icinga.timet" = "$icinga.timet$"
        "-service.action_url" = "$rocketchat_service_action_url$"
        "-service.display_name" = "$service.display_name$"
        "-service.name" = "$service.name$"
        "-service.output" = "$service.output$"
        "-service.state" = "$service.state$"
    }
    vars.rocketchat_host_action_url = "$host.action_url$"
    vars.rocketchat_service_action_url = "$service.action_url$"
}

My notification template looks like this:

zones.d/s060w44/notification_templates.conf

template Notification "rocketchat-notifiy-template" {
    command = "rocketchat"
    states = [ Critical, OK ]
    types = [ Acknowledgement, Problem, Recovery ]
    users = [ "rocket.chat" ]
}

… and both notification commands look like this:

zones.d/s060w44/notification_apply.conf

apply Notification "host rocketchat" to Host {
    import "rocketchat-notifiy-template"

    assign where match("*", host.name)
    states = [ Down, Up ]
    types = [ Acknowledgement, Custom, Problem, Recovery ]
    users = [ "rocket.chat" ]
    vars.rocketchat_host_action_url = "https://URL/hooks/6xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx"
    vars.rocketchat_service_action_url = "https://URL/hooks/6xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx"
}

zones.d/s060w44/notification_apply.conf

zones.d/s060w44/notification_apply.conf
apply Notification "service rocketchat" to Service {
    import "rocketchat-notifiy-template"

    assign where match("*", host.name)
    states = [ Critical, OK ]
    types = [ Acknowledgement, Problem, Recovery ]
    users = [ "rocket.chat" ]
    vars.rocketchat_host_action_url = "https://URL/hooks/6xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx"
    vars.rocketchat_service_action_url = "https://URL/hooks/6xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx"

}

Thanks for any help!

moreamazingnick · July 26, 2022, 6:28am

change the command in commands.conf to:
/usr/bin/env ROCKETCHAT_WEBHOOK_URL="https://test/hook" /etc/icinga2/scripts/notify_rocketchat

I tested it out with:
/usr/bin/env ROCKETCHAT_WEBHOOK_URL="https://test/hook" printenv

329854343 · July 26, 2022, 9:19am

Hello, how/where do I do this in icinga2 director?

Thanks

moreamazingnick · July 26, 2022, 9:22am

first picture:

replace

/etc/icinga2/scripts/notify_rocketchat

with:

/usr/bin/env ROCKETCHAT_WEBHOOK_URL="https://test/hook" /etc/icinga2/scripts/notify_rocketchat

329854343 · July 26, 2022, 9:47am

Hello, I’ve past the string (/usr/bin/env ROCKETCHAT_WEBHOOK_URL=“https://url” /etc/icinga2/scripts/notify_rocketchat) in the command field.

zones.d/director-global/commands.conf
object NotificationCommand "rocketchat" {
    import "plugin-notification-command"
    command = [
        "/usr/bin/env",
        "ROCKETCHAT_WEBHOOK_URL=\"https://url\"",
        "/etc/icinga2/scripts/notify_rocketchat"
    ]
    arguments += {
        "-host.action_url" = "$rocketchat_host_action_url$"
        "-host.display_name" = "$host.display_name$"
        "-host.name" = "$host.name$"
        "-host.output" = "$host.output$"
        "-host.state" = "$host.state$"
        "-icinga.timet" = "$icinga.timet$"
        "-service.action_url" = "$rocketchat_service_action_url$"
        "-service.display_name" = "$service.display_name$"
        "-service.name" = "$service.name$"
        "-service.output" = "$service.output$"
        "-service.state" = "$service.state$"
    }
    vars.rocketchat_host_action_url = "$host.action_url$"
    vars.rocketchat_service_action_url = "$service.action_url$"
}

I don’t think the director acknowledge that /usr/bin/env ROCKETCHAT_WEBHOOK_URL= is 1 command because it sets a comma. Or did I do something wrong?

Thanks

moreamazingnick · July 26, 2022, 9:49am

looks fine to me,

my test command renderd to

object CheckCommand "envtest" {
    import "plugin-check-command"
    command = [
        "/usr/bin/env",
        "ROCKETCHAT_WEBHOOK_URL=\"https://test/hook\"",
        "printenv"
    ]
}

and produced the following output:

PIDFILE=/run/icinga2/icinga2.pid
PWD=/
LANG=en_US.UTF-8
INVOCATION_ID=148ff0e1959d42f281ddf932ead25000
SHLVL=0
ICINGA2_ERROR_LOG=/var/log/icinga2/error.log
JOURNAL_STREAM=9:34313
PATH=/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin
LC_NUMERIC=C
ROCKETCHAT_WEBHOOK_URL="https://test/hook"

329854343 · July 26, 2022, 10:10am

Okay, right now I get no messages, how can I test run it like you did?

moreamazingnick · July 26, 2022, 1:16pm

try to run the go command manually (from shell) first, so we can exclude any configuration issues on the rocketchat side

329854343 · July 26, 2022, 1:38pm

Did you mean this?

root@Server:/etc/icinga2/scripts# /etc/icinga2/scripts/notify_rocketchat
$ROCKETCHAT_WEBHOOK_URL missing
root@Server:/etc/icinga2/scripts#

moreamazingnick · July 27, 2022, 6:47am

yes but your command is incomplete:

read the documentation on notify_rocketchat
set the environmentvar of the url via export
prepare the shell command
run it and see if that works and connects to your rocketchat instance

329854343 · July 27, 2022, 10:03am

Hello, I think I do someting wrong with setting a variable as shown in the documentation.

root@s060w44:~# /etc/icinga2/scripts/notify_rocketchat env={"ROCKETCHAT_WEBHOOK_URL" = "https://URL"}
$ROCKETCHAT_WEBHOOK_URL missing
root@s060w44:~# /etc/icinga2/scripts/notify_rocketchat vars.rocketchat_webhook_url="https://URL"
$ROCKETCHAT_WEBHOOK_URL missing
root@s060w44:~#

But I can run a curl command to the rocket.chat webhook, so connection should not be a problem.

moreamazingnick · July 27, 2022, 10:26am

please look up who to set an environment variable in bash.

ROCKETCHAT_WEBHOOK_URL is an environment variable

https://www.google.com/search?q=set+environment+var+in+bash&oq=set+environment+var+in+bash

329854343 · July 27, 2022, 12:25pm

Hello, communication works:

/etc/icinga2/scripts/notify_rocketchat -host.name hostname -host.state down -host.name hostname -service.name ping -service.state up

Result:

moreamazingnick · July 27, 2022, 12:38pm

well thats great,
please try if that works and replace the webhook url:

/usr/bin/env ROCKETCHAT_WEBHOOK_URL="https://test/hook" /etc/icinga2/scripts/notify_rocketchat -host.name hostname -host.state down -host.name hostname -service.name ping -service.state up

329854343 · July 27, 2022, 1:02pm

Yes, this works aswell!

moreamazingnick · July 27, 2022, 1:06pm

if you look up a service or a host in icingaweb, what do you see under the section Notifications?

329854343 · July 27, 2022, 1:10pm

moreamazingnick · July 27, 2022, 1:18pm

looks great so the service sends notifications

look into the icigna2.log and search for notification

329854343 · July 28, 2022, 11:20am

Hello, this is the output.

[2022-07-28 10:59:37 +0000] debug/HttpUtility: Request body: '{"author":"Username","comment":"test","force":false,"host":"test"}'
....
[2022-07-28 10:59:37 +0000] information/Notification: Completed sending 'Custom' notification 'test!host rocketchat' for checkable 'test' and user 'rocket.chat' using command 'rocketchat_alt'.
[2022-07-28 10:59:37 +0000] notice/Process: PID 1242560 ('/usr/bin/env' 'ROCKETCHAT_WEBHOOK_URL="https://URL/hooks/"' '/etc/icinga2/scripts/notify_rocketchat' '-host.action_url' 'https://URL/hooks/' '-host.display_name' 'test' '-host.name' 'test' '-host.output' 'PING CRITICAL - Packet loss = 100%' '-host.state' 'DOWN' '-icinga.timet' '1659005977' '-service.action_url' 'https://URL/hooks/') terminated with exit code 2
[2022-07-28 10:59:37 +0000] warning/PluginNotificationTask: Notification command for object 'test' (PID: 1242560, arguments: '/usr/bin/env' 'ROCKETCHAT_WEBHOOK_URL="https://URL/hooks/"' '/etc/icinga2/scripts/notify_rocketchat' '-host.action_url' 'https://URL/hooks/' '-host.display_name' 'test' '-host.name' 'test' '-host.output' 'PING CRITICAL - Packet loss = 100%' '-host.state' 'DOWN' '-icinga.timet' '1659005977' '-service.action_url' 'https://URL/hooks/') terminated with exit code 2, output: -service.* is given, missing some of: -host.name, -service.name, -service.state

moreamazingnick · July 28, 2022, 11:40am

your host notification is not working because the service action url is set

remove from Notification "host rocketchat" to Host

vars.rocketchat_service_action_url = "https://URL/hooks/6xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx"