Setup Icinga 2 Client
Setup Icinga 2 repository on the client machines.
### CentOS 7 ### yum install epel-release rpm --import https://packages.icinga.com/icinga.key yum install https://packages.icinga.com/epel/icinga-rpm-release-7-latest.noarch.rpm ### RHEL 7 ### subscription-manager repos --enable rhel-7-server-optional-rpms subscription-manager repos --enable rhel-7-server-extras-rpms rpm -ivh https://dl.fedoraproject.org/pub/epel/epel-release-latest-7.noarch.rpm rpm --import https://packages.icinga.com/icinga.key yum install https://packages.icinga.com/epel/icinga-rpm-release-7-latest.noarch.rpm ### CentOS 6 ### yum install epel-release yum install https://packages.icinga.com/epel/icinga-rpm-release-6-latest.noarch.rpm ### RHEL 6 ### subscription-manager repos --enable rhel-6-server-optional-rpms subscription-manager repos --enable rhel-server-rhscl-6-rpms rpm -ivh https://dl.fedoraproject.org/pub/epel/epel-release-latest-6.noarch.rpm yum install https://packages.icinga.com/epel/icinga-rpm-release-6-latest.noarch.rpm ### Ubuntu 18.04 / Ubuntu 16.04 ### sudo su - wget -O - https://packages.icinga.com/icinga.key | apt-key add - echo "deb http://packages.icinga.com/ubuntu icinga-$(lsb_release -sc) main" | sudo tee /etc/apt/sources.list.d/icinga2.list echo "deb-src http://packages.icinga.com/ubuntu icinga-$(lsb_release -sc) main" | sudo tee -a /etc/apt/sources.list.d/icinga2.list ### Debian 9 / Debian 8 ### sudo su - wget -O - https://packages.icinga.com/icinga.key | apt-key add - echo "deb http://packages.icinga.com/debian icinga-$(lsb_release -sc) main" | sudo tee /etc/apt/sources.list.d/icinga2.list echo "deb-src http://packages.icinga.com/debian icinga-$(lsb_release -sc) main" | sudo tee -a /etc/apt/sources.list.d/icinga2.list ### Fedora 28 ### dnf install https://packages.icinga.com/fedora/icinga-rpm-release-28-latest.noarch.rpm ### Fedora 27 ### dnf install https://packages.icinga.com/fedora/icinga-rpm-release-27-latest.noarch.rpm ### openSUSE ### rpm --import https://packages.icinga.com/icinga.key zypper ar https://packages.icinga.com/SUSE/ICINGA-release.repo zypper ref
Install the Icinga 2 package and monitoring (Nagios) plugins on your client machines.
### CentOS 7 / RHEL 7 ### yum install icinga2 systemctl enable icinga2 systemctl start icinga2 yum install -y nagios-plugins-all ### CentOS 6 / RHEL 6 ### yum install icinga2 chkconfig icinga2 on service icinga2 start yum install -y nagios-plugins-all ### Ubuntu / Debian ### apt-get update apt-get install -y icinga2 apt-get install -y monitoring-plugins ### Fedora 28 / Fedora 27 ### dnf install -y icinga2 systemctl enable icinga2 systemctl start icinga2 dnf install -y nagios-plugins-all ### openSUSE ### zypper install icinga2 zypper install monitoring-plugins
Generate a Ticket (on Master node)
When you run an Icinga 2 node wizard on client machines, the wizard sends a certificate signing request to master node. To auto sign a request, the master node requires a valid ticket from clients.
You must generate the ticket beforehand. Run the following command to generate the ticket for the client “centos.itzgeek.local“.
icinga2 pki ticket --cn 'centos.itzgeek.local'
Output:
1a355c8e1afd6c2e7c6beb6ed803680a03aef7a7
Icinga Node Setup (On Client Node)
Run the Icinga Node Wizard on the client machine.
icinga2 node wizard
Output:
Welcome to the Icinga 2 Setup Wizard!
We will guide you through all required configuration details.
Please specify if this is a satellite/client setup ('n' installs a master setup) [Y/n]: Y << Setup Client
Starting the Client/Satellite setup routine...
Please specify the common name (CN) [centos.itzgeek.local]: << Press Enter
Please specify the parent endpoint(s) (master or satellite) where this node should connect to:
Master/Satellite Common Name (CN from your master/satellite node): server.itzgeek.local << Enter Master Node Name
Do you want to establish a connection to the parent node from this node? [Y/n]: Y << Press Y to accept connections
Please specify the master/satellite connection information:
Master/Satellite endpoint host (IP address or FQDN): 192.168.1.10 << Enter Master Node IP or Hostname
Master/Satellite endpoint port [5665]: << Press Enter
Add more master/satellite endpoints? [y/N]: N << Press N as we have only one master
Parent certificate information:
Subject: CN = server.itzgeek.local
Issuer: CN = Icinga CA
Valid From: Sep 23 15:21:27 2018 GMT
Valid Until: Aug 30 15:21:27 2033 GMT
Fingerprint: D7 DC 2D 3A 0C A0 B5 01 FD FC 43 C4 00 B5 ED D0 32 01 E1 AC
Is this information correct? [y/N]: Y << Press Y if the above certificacte details are correct
Please specify the request ticket generated on your Icinga 2 master (optional).
(Hint: # icinga2 pki ticket --cn 'centos.itzgeek.local'): 1a355c8e1afd6c2e7c6beb6ed803680a03aef7a7 << Copy/Paste the ticket from Master node
Please specify the API bind host/port (optional): << Press Enter
Bind Host []: << Press Enter
Bind Port []: << Press Enter
Accept config from parent node? [y/N]: Y << Press Y to accept configuration
Accept commands from parent node? [y/N]: Y << Press Y to accept commands
Reconfiguring Icinga...
Disabling feature notification. Make sure to restart Icinga 2 for these changes to take effect.
Enabling feature api. Make sure to restart Icinga 2 for these changes to take effect.
Local zone name [centos.itzgeek.local]: << Press Enter
Parent zone name [master]: << Press Enter
Default global zones: global-templates director-global
Do you want to specify additional global zones? [y/N]: N << Press N
Do you want to disable the inclusion of the conf.d directory [Y/n]: Y << Press Y to disable conf.d directory
Disabling the inclusion of the conf.d directory...
Done.
Now restart your Icinga 2 daemon to finish the installation!
Wizard does the following,
- Fetches the public certificate from the master
- Client requests for a certificate from the master with the valid ticket.
Verify the configurations files.
cat /etc/icinga2/zones.conf
Make sure your client node configurations should be like below. Update the zones.conf, if required.
/*
* Generated by Icinga 2 node setup commands
* on 2018-09-23 11:25:39 +0530
*/
object Endpoint "server.itzgeek.local" {
host = "192.168.1.10"
port = "5665"
}
object Zone "master" {
endpoints = [ "server.itzgeek.local" ]
}
object Endpoint "centos.itzgeek.local" {
}
object Zone "centos.itzgeek.local" {
endpoints = [ "centos.itzgeek.local" ]
parent = "master"
}
Restart the Icinga 2 on the client machine.
### For Systemd Systems ### systemctl restart icinga2 ### For SysVinit Systems ### service icinga2 restart
