I’m trying to setup some CentOS 7 Icinga agents. The setup command fails (return code 1). The output tells me there is an empty hostname used. But why? According to documentation I’ve set everything correctly.
$ icinga2 node setup \
--zone l01bld06 \
--endpoint l01icinga,10.X.X.X,5665 \
--parent_host l01icinga,10.X.X.X,5665 \
--parent_zone master \
--listen 0.0.0.0,5665 \
--ticket `cat /var/cache/icinga2/my.ticket` \
--trustedcert /var/cache/icinga2/trusted.crt \
--cn l01bld06 \
--accept-config \
--accept-commands \
--disable-confd
information/cli: Requesting certificate with ticket 'bb61658d1cf41d1e3c144eec0da17d6259094181'.
information/cli: Verifying parent host connection information: host '', port '5665'.
information/cli: Using the following CN (defaults to FQDN): 'l01bld06'.
information/cli: Backup file '/var/lib/icinga2/certs//l01bld06.key.orig' already exists. Skipping backup.
information/cli: Backup file '/var/lib/icinga2/certs//l01bld06.crt.orig' already exists. Skipping backup.
information/base: Writing private key to '/var/lib/icinga2/certs//l01bld06.key'.
information/base: Writing X509 certificate to '/var/lib/icinga2/certs//l01bld06.crt'.
information/cli: Verifying trusted certificate file '/var/cache/icinga2/trusted.crt'.
information/cli: Requesting a signed certificate from the parent Icinga node.
critical/cli: Cannot connect to host '' on port '5665'
critical/cli: Failed to fetch signed certificate from parent Icinga node ', 5665'. Please try again.
Port to Icinga server is open:
$ nmap -P0 -p5665 l01icinga
Starting Nmap 6.40 ( http://nmap.org ) at 2021-06-10 11:39 CEST
Nmap scan report for l01icinga (10.X.X.X)
Host is up (0.0027s latency).
PORT STATE SERVICE
5665/tcp open unknown
Nmap done: 1 IP address (1 host up) scanned in 0.03 seconds
Whats wrong with my setup command?
DEBUG INFO
- Version used (
icinga2 --version): 2.12.3 - Operating System and version: CentOS Linux release 7.9.2009 (Core)
- Enabled features (
icinga2 feature list)
Disabled features: api command compatlog debuglog elasticsearch gelf graphite icingadb influxdb livestatus opentsdb perfdata statusdata syslog
Enabled features: checker mainlog notification
- Icinga Web 2 version and modules (System - About): N/A
- Config validation (
icinga2 daemon -C)
[2021-06-10 11:31:19 +0200] information/cli: Icinga application loader (version: 2.12.3)
[2021-06-10 11:31:19 +0200] information/cli: Loading configuration file(s).
[2021-06-10 11:31:19 +0200] information/ConfigItem: Committing config item(s).
[2021-06-10 11:31:19 +0200] information/ConfigItem: Instantiated 1 NotificationComponent.
[2021-06-10 11:31:19 +0200] information/ConfigItem: Instantiated 1 Host.
[2021-06-10 11:31:19 +0200] information/ConfigItem: Instantiated 1 Downtime.
[2021-06-10 11:31:19 +0200] information/ConfigItem: Instantiated 2 NotificationCommands.
[2021-06-10 11:31:19 +0200] information/ConfigItem: Instantiated 1 FileLogger.
[2021-06-10 11:31:19 +0200] information/ConfigItem: Instantiated 12 Notifications.
[2021-06-10 11:31:19 +0200] information/ConfigItem: Instantiated 1 IcingaApplication.
[2021-06-10 11:31:19 +0200] information/ConfigItem: Instantiated 2 HostGroups.
[2021-06-10 11:31:19 +0200] information/ConfigItem: Instantiated 1 CheckerComponent.
[2021-06-10 11:31:19 +0200] information/ConfigItem: Instantiated 3 Zones.
[2021-06-10 11:31:19 +0200] information/ConfigItem: Instantiated 1 Endpoint.
[2021-06-10 11:31:19 +0200] information/ConfigItem: Instantiated 235 CheckCommands.
[2021-06-10 11:31:19 +0200] information/ConfigItem: Instantiated 3 TimePeriods.
[2021-06-10 11:31:19 +0200] information/ConfigItem: Instantiated 1 UserGroup.
[2021-06-10 11:31:19 +0200] information/ConfigItem: Instantiated 1 User.
[2021-06-10 11:31:19 +0200] information/ConfigItem: Instantiated 11 Services.
[2021-06-10 11:31:19 +0200] information/ConfigItem: Instantiated 3 ServiceGroups.
[2021-06-10 11:31:19 +0200] information/ConfigItem: Instantiated 1 ScheduledDowntime.
[2021-06-10 11:31:19 +0200] information/ScriptGlobal: Dumping variables to file '/var/cache/icinga2/icinga2.vars'
[2021-06-10 11:31:19 +0200] information/cli: Finished validating the configuration file(s).
- If you run multiple Icinga 2 instances, the
zones.conffile (oricinga2 object list --type Endpointandicinga2 object list --type Zone) from all affected nodes
# icinga2 object list --type Endpoint
Object 'l01bld06' of type 'Endpoint':
% declared in '/etc/icinga2/zones.conf', lines 7:1-7:24
* __name = "l01bld06"
* host = "l01bld06"
% = modified in '/etc/icinga2/zones.conf', lines 8:3-8:17
* log_duration = 86400
* name = "l01bld06"
* package = "_etc"
* port = "5665"
* source_location
* first_column = 1
* first_line = 7
* last_column = 24
* last_line = 7
* path = "/etc/icinga2/zones.conf"
* templates = [ "l01bld06" ]
% = modified in '/etc/icinga2/zones.conf', lines 7:1-7:24
* type = "Endpoint"
* zone = ""
# icinga2 object list --type 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 '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 'l01bld06' of type 'Zone':
% declared in '/etc/icinga2/zones.conf', lines 11:1-11:20
* __name = "l01bld06"
* endpoints = [ "l01bld06" ]
% = modified in '/etc/icinga2/zones.conf', lines 12:3-12:26
* global = false
* name = "l01bld06"
* package = "_etc"
* parent = ""
* source_location
* first_column = 1
* first_line = 11
* last_column = 20
* last_line = 11
* path = "/etc/icinga2/zones.conf"
* templates = [ "l01bld06" ]
% = modified in '/etc/icinga2/zones.conf', lines 11:1-11:20
* type = "Zone"
* zone = ""