Changes between Version 8 and Version 9 of NSM2021/Agenda/icinga_handson_cont

Timestamp:

May 30, 2021, 5:27:53 PM (4 years ago)

Author:

deepthi

Comment:

--

NSM2021/Agenda/icinga_handson_cont

@@ -8 +8 @@
 * How to add a service
 
+* How to check DNS
+
+* How to add an agent 
+
 * How to monitor disk space
 
 * How to check files
-
-* How to add an agent 
 
 == How to add a host ==
@@ -50 +52 @@
 Rest is same as before we applied the services to the hosts.
 
+== How to add an Agent==
+
+==== Host template for agents ====
+
+Agent settings are not available for modification directly on a host object. This requires you to create an “Icinga Agent” template. You could name it exactly like that; it’s important to use meaningful names for your templates.
+
+For setting up an agent, Host template should be created using iCinga director as follows,
+
+`Icinga director > Hosts > Host Templates`
+
+Main Properties will be shown as following
+
+[[Image(https://ws.learn.ac.lk/raw-attachment/wiki/NSM2021/Agenda/icinga_handson_cont/agent1_host_template.png, 600)]]
+
+In the `Icinga agent and zone settings` , Following options should be selected,
+
+[[Image(https://ws.learn.ac.lk/raw-attachment/wiki/NSM2021/Agenda/icinga_handson_cont/agent_host_template2.png, 600)]]
+
+'''NOTE : You should click deploy pending changes in Activity log section under Icinga Director'''
+
+==== Adding hosts as agents ====
+
+''Note : Always try to use meaningful names in configurations''
+
+After creating host template for, host can be added as an agent for the system. 
+
+`Icinga director > Hosts > Host`
+
+As following example, the details should be assigned as per the requirement,
+
+[[Image(https://ws.learn.ac.lk/raw-attachment/wiki/NSM2021/Agenda/icinga_handson_cont/adding_agent_host.png, 600)]]
+
+After apply the deployment, setup preparation for agent has to be done
+
+==== Before Executing the agent scripts... ====
+
+Before executing the agent scripts in the relevant machines,
+
+Icinga2 have to be installed in the Agent as following instructions below,
+
+{{{
+
+apt-get -y install apt-transport-https wget gnupg
+
+wget -O - https://packages.icinga.com/icinga.key | apt-key add -
+
+. /etc/os-release; if [ ! -z ${UBUNTU_CODENAME+x} ]; then DIST="${UBUNTU_CODENAME}"; else DIST="$(lsb_release -c| awk '{print $2}')"; fi;
+
+echo "deb https://packages.icinga.com/ubuntu icinga-${DIST} main" > /etc/apt/sources.list.d/${DIST}-icinga.list
+
+echo "deb-src https://packages.icinga.com/ubuntu icinga-${DIST} main" >> /etc/apt/sources.list.d/${DIST}-icinga.list
+
+apt-get update
+
+apt-get install icinga2 monitoring-plugins
+
+}}}
+
+'''Note : Please check the `/etc/hosts` file and verify that the agent is resolving for the FQDNvof master node before executing the agent scripts.'''
+(Otherwise you will not be able to connect agent hosts with a certificate error)
+
+`icinga director > hosts > host >`, click on the agent and agent tab contains the scripts for agent manual configurations.
+
+Click on the agent host you added and a tab called Agent will be shown as in the following image,
+
+[[Image(https://ws.learn.ac.lk/raw-attachment/wiki/NSM2021/Agenda/icinga_handson_cont/agent_scripts.png, 600)]]
+
+You will see two scripts to execute on agent hosts.
+
+They are for Agent deployment instructions, you will get Windows Kickstart Script and a command line script for the agents as above in the example.
+
+Download them in the the agent hosts and execute the scripts for configurations.
+
+`./icinga-agent.sh`
 
 == How to check disk space ==
@@ -66 +142 @@
 == How to check files ==
 
-== How to add an Agent==
-
-Agent settings are not available for modification directly on a host object. This requires you to create an “Icinga Agent” template. You could name it exactly like that; it’s important to use meaningful names for your templates.