Question about: Icinga2 distributed monitoring -- Master with agents - Endpoints are not shown?

Icinga 2
1

Dear Community,

I tried to configure a Master with Agents following this documentation:
https://icinga.com/docs/icinga-2/latest/doc/06-distributed-monitoring/#master-with-agents

But I do not really know, why it is not working. Maybe it is really really stupid mistake. Could someone have a look over it? The problem is: In icinga-web the client wshb-000-002 is not shown, only the MasterNode “icinga”. Maybe the problem is, that /etc/icinga2/zones.d/master/ is not included via include_recursive in icinga2.conf? But I found nothing regarding to this in the documentation.
I enabled the debug logging and found in the debug log, that the configuration is transfered correctly to the Client:

[2022-03-23 13:44:49 +0100] information/ApiListener: Finished syncing runtime objects to endpoint ‘wshb-000-002.domain.tld’.
[2022-03-23 13:44:49 +0100] information/ApiListener: Finished syncing endpoint ‘wshb-000-002.domain.tld’ in zone ‘wshb-000-002.domain.tld’.

And additional entries regarding this host:

[2022-03-23 13:53:49 +0100] notice/JsonRpcConnection: Received ‘event::Heartbeat’ message from identity ‘wshb-000-002.domain.tld’.
[2022-03-23 13:53:58 +0100] debug/ApiListener: Not connecting to Endpoint ‘wshb-000-002.domain.tld’ because we’re already connected to it.
[2022-03-23 13:53:58 +0100] notice/ApiListener: Connected endpoints: wshb-000-002.domain.tld (1)

But whatever I do, the client wshb-000-002 is not visible in Icinga Web2. What I am doing wrong?

What I configured:

** /etc/icinga2/zones.conf **

object Endpoint NodeName {
  host = NodeName
}

object Zone ZoneName {
  endpoints = [ NodeName ]
}

object Zone "global-templates" {
  global = true
}

object Zone "director-global" {
  global = true
}

object Endpoint "wshb-000-002.domain.tld" {
  host = "wshb-000-002.domain.tld"
}

object Zone "wshb-000-002.domain.tld" {
  parent = "av-icinga.domain.tld"
  endpoints = [ "wshb-000-002.domain.tld" ]
}

** /etc/icinga2/zones.d/master/hosts.conf **

object Host "wshb-000-002.domain.tld" {
  check_command = "hostalive"
  address = "172.18.0.2"

  vars.agent_endpoint = name //follows the convention that host name == endpoint name
}

** /etc/icinga2/zones.d/master/services.conf **

apply Service "disk-windows" {
  import "generic-service"
  check_command = "disk-windows"
  display_name = "Disk Windows"

// Execute the check on the remote command endpoint
  command_endpoint = host.vars.agent_endpoint

  assign where host.vars.os == "Windows" && host.vars.agent_endpoint

}

** icinga2 object list --type Endpoint **

Object 'av-icinga.domain.tld' of type 'Endpoint':
  % declared in '/etc/icinga2/zones.conf', lines 7:1-7:24
  * __name = "av-icinga.domain.tld"
  * host = "av-icinga.domain.tld"
    % = modified in '/etc/icinga2/zones.conf', lines 8:3-8:17
  * log_duration = 86400
  * name = "av-icinga.domain.tld"
  * package = "_etc"
  * port = "5665"
  * source_location
    * first_column = 1
    * first_line = 7
    * last_column = 24
    * last_line = 7
    * path = "/etc/icinga2/zones.conf"
  * templates = [ "av-icinga.domain.tld" ]
    % = modified in '/etc/icinga2/zones.conf', lines 7:1-7:24
  * type = "Endpoint"
  * zone = ""

Object 'wshb-000-002.domain.tld' of type 'Endpoint':
  % declared in '/etc/icinga2/zones.conf', lines 64:1-64:44
  * __name = "wshb-000-002.domain.tld"
  * host = "wshb-000-002.domain.tld"
    % = modified in '/etc/icinga2/zones.conf', lines 65:3-65:37
  * log_duration = 86400
  * name = "wshb-000-002.domain.tld"
  * package = "_etc"
  * port = "5665"
  * source_location
    * first_column = 1
    * first_line = 64
    * last_column = 44
    * last_line = 64
    * path = "/etc/icinga2/zones.conf"
  * templates = [ "wshb-000-002.domain.tld" ]
    % = modified in '/etc/icinga2/zones.conf', lines 64:1-64:44
  * type = "Endpoint"
  * zone = ""

** icinga2 object list --type Zone **

Object 'wshb-000-002.domain.tld' of type 'Zone':
  % declared in '/etc/icinga2/zones.conf', lines 68:1-68:40
  * __name = "wshb-000-002.domain.tld"
  * endpoints = [ "wshb-000-002.domain.tld" ]
    % = modified in '/etc/icinga2/zones.conf', lines 70:3-70:46
  * global = false
  * name = "wshb-000-002.domain.tld"
  * package = "_etc"
  * parent = "av-icinga.domain.tld"
    % = modified in '/etc/icinga2/zones.conf', lines 69:3-69:36
  * source_location
    * first_column = 1
    * first_line = 68
    * last_column = 40
    * last_line = 68
    * path = "/etc/icinga2/zones.conf"
  * templates = [ "wshb-000-002.domain.tld" ]
    % = modified in '/etc/icinga2/zones.conf', lines 68:1-68:40
  * type = "Zone"
  * zone = ""

Object 'global-templates' of type 'Zone':
  % declared in '/etc/icinga2/zones.conf', lines 24:1-24:30
  * __name = "global-templates"
  * endpoints = null
  * global = true
    % = modified in '/etc/icinga2/zones.conf', lines 25:3-25:15
  * name = "global-templates"
  * package = "_etc"
  * parent = ""
  * source_location
    * first_column = 1
    * first_line = 24
    * last_column = 30
    * last_line = 24
    * path = "/etc/icinga2/zones.conf"
  * templates = [ "global-templates" ]
    % = modified in '/etc/icinga2/zones.conf', lines 24:1-24:30
  * type = "Zone"
  * zone = ""

Object 'director-global' of type 'Zone':
  % declared in '/etc/icinga2/zones.conf', lines 36:1-36:29
  * __name = "director-global"
  * endpoints = null
  * global = true
    % = modified in '/etc/icinga2/zones.conf', lines 37:3-37:15
  * name = "director-global"
  * package = "_etc"
  * parent = ""
  * source_location
    * first_column = 1
    * first_line = 36
    * last_column = 29
    * last_line = 36
    * path = "/etc/icinga2/zones.conf"
  * templates = [ "director-global" ]
    % = modified in '/etc/icinga2/zones.conf', lines 36:1-36:29
  * type = "Zone"
  * zone = ""

Object 'av-icinga.domain.tld' of type 'Zone':
  % declared in '/etc/icinga2/zones.conf', lines 11:1-11:20
  * __name = "av-icinga.domain.tld"
  * endpoints = [ "av-icinga.domain.tld" ]
    % = modified in '/etc/icinga2/zones.conf', lines 12:3-12:26
  * global = false
  * name = "av-icinga.domain.tld"
  * package = "_etc"
  * parent = ""
  * source_location
    * first_column = 1
    * first_line = 11
    * last_column = 20
    * last_line = 11
    * path = "/etc/icinga2/zones.conf"
  * templates = [ "av-icinga.domain.tld" ]
    % = modified in '/etc/icinga2/zones.conf', lines 11:1-11:20
  * type = "Zone"
  * zone = ""

** icinga2 daemon -C **

[2022-03-23 13:51:37 +0100] information/cli: Icinga application loader (version: r2.13.2-1)
[2022-03-23 13:51:37 +0100] information/cli: Loading configuration file(s).
[2022-03-23 13:51:37 +0100] warning/config: Ignoring directory '/etc/icinga2/zones.d/master' for unknown zone 'master'.
[2022-03-23 13:51:37 +0100] information/ConfigItem: Committing config item(s).
[2022-03-23 13:51:37 +0100] information/ApiListener: My API identity: av-icinga.domain.tld
[2022-03-23 13:51:37 +0100] warning/ApplyRule: Apply rule 'ping4' (in /etc/icinga2/conf.d/services.conf: 26:1-26:21) for type 'Service' does not match anywhere!
[2022-03-23 13:51:37 +0100] information/ConfigItem: Instantiated 12 Notifications.
[2022-03-23 13:51:37 +0100] information/ConfigItem: Instantiated 1 IcingaApplication.
[2022-03-23 13:51:37 +0100] information/ConfigItem: Instantiated 2 HostGroups.
[2022-03-23 13:51:37 +0100] information/ConfigItem: Instantiated 2 NotificationCommands.
[2022-03-23 13:51:37 +0100] information/ConfigItem: Instantiated 1 Host.
[2022-03-23 13:51:37 +0100] information/ConfigItem: Instantiated 1 Downtime.
[2022-03-23 13:51:37 +0100] information/ConfigItem: Instantiated 2 FileLoggers.
[2022-03-23 13:51:37 +0100] information/ConfigItem: Instantiated 1 CheckerComponent.
[2022-03-23 13:51:37 +0100] information/ConfigItem: Instantiated 1 ApiListener.
[2022-03-23 13:51:37 +0100] information/ConfigItem: Instantiated 1 IdoMysqlConnection.
[2022-03-23 13:51:37 +0100] information/ConfigItem: Instantiated 4 Zones.
[2022-03-23 13:51:37 +0100] information/ConfigItem: Instantiated 2 Endpoints.
[2022-03-23 13:51:37 +0100] information/ConfigItem: Instantiated 2 ApiUsers.
[2022-03-23 13:51:37 +0100] information/ConfigItem: Instantiated 244 CheckCommands.
[2022-03-23 13:51:37 +0100] information/ConfigItem: Instantiated 1 NotificationComponent.
[2022-03-23 13:51:37 +0100] information/ConfigItem: Instantiated 1 UserGroup.
[2022-03-23 13:51:37 +0100] information/ConfigItem: Instantiated 1 User.
[2022-03-23 13:51:37 +0100] information/ConfigItem: Instantiated 3 TimePeriods.
[2022-03-23 13:51:37 +0100] information/ConfigItem: Instantiated 3 ServiceGroups.
[2022-03-23 13:51:37 +0100] information/ConfigItem: Instantiated 1 ScheduledDowntime.
[2022-03-23 13:51:37 +0100] information/ConfigItem: Instantiated 11 Services.
[2022-03-23 13:51:37 +0100] information/ScriptGlobal: Dumping variables to file '/var/cache/icinga2/icinga2.vars'
[2022-03-23 13:51:37 +0100] information/cli: Finished validating the configuration file(s).
2

Quite simple or at least I hope so:
You are configuring a zone based on ZoneName which resolves to av-icinga.domain.tld and placing configuration in zone master. So it should tell you that it is ignoring the zone master as unknown.
I always think using constants in the zones.conf is a bad idea and would directly use names here.

3

Hey @dgoetz,

thanks for the hint! Now it works. Thanks for your help :slight_smile: