Checks to see if Zabbix is installed and if not, installs it. Covers Centos and Ubuntu, but can be extended for other Linux flavors fairly easily.

Evaluation code:

#!/bin/bash

service=zabbix_agent



if (( $(ps -ef | grep -v grep | grep $service | wc -l) > 0 ))

then

exit 0

else

exit 1

fi

Remediation code:

#!/bin/bash



#Get OS

os_id="$(grep -w ID /etc/os-release | cut -d'=' -f2)"



#Functions

centos () {

	if [ $os_ver == '8.0' ]; then

    	#Remove all dirty packages

    	rpm -e zabbix-release-*

        

		#Get the Package

		rpm -Uvh http://repo.zabbix.com/zabbix/4.0/rhel/8/x86_64/zabbix-release-4.0-2.el8.noarch.rpm

		

		#Clean and Install with Yum

        yum clean all

		yum -y install zabbix-agent



		#Overwrite the conf file with attached

		cp zabbix_agentd.conf /etc/zabbix/zabbix_agentd.conf

		

		#Edit config to personalize for new system

		CONFIGPATH="/etc/zabbix/zabbix_agentd.conf"

		TARGET_KEY="Hostname"

		REPLACEMENT_VALUE="$(hostname)"

		sed -c -i "s/\($TARGET_KEY *= *\).*/\1$REPLACEMENT_VALUE/" $CONFIGPATH



		#Enable Zabbix as Service (Automatic Startup at Boot)

		systemctl enable zabbix-agent



		#Start the agent

		systemctl start zabbix-agent

        

    fi



	if [ $os_ver == '7' ]; then

    	#Remove all dirty packages

    	rpm -e zabbix-release-*

        

		#Get the Package

		rpm -Uvh http://repo.zabbix.com/zabbix/4.0/rhel/7/x86_64/zabbix-release-4.0-1.el7.noarch.rpm

		

		#Clean and install with Yum

        yum clean all

		yum -y install zabbix-agent



		#Overwrite the conf file with attached

		cp zabbix_agentd.conf /etc/zabbix/zabbix_agentd.conf

		

		#Edit config to personalize for new system

		CONFIGPATH="/etc/zabbix/zabbix_agentd.conf"

		TARGET_KEY="Hostname"

		REPLACEMENT_VALUE="$(hostname)"

		sed -c -i "s/\($TARGET_KEY *= *\).*/\1$REPLACEMENT_VALUE/" $CONFIGPATH



		#Enable Zabbix as Service (Automatic Startup at Boot)

		systemctl enable zabbix-agent



		#Start the agent

		systemctl start zabbix-agent

        

    fi

	

	if [ $os_ver == '6' ]; then

    	#Remove all dirty packages

	    rpm -e zabbix-release-*

    

		#Get the Package

        wget https://repo.zabbix.com/zabbix/4.0/rhel/6/x86_64/zabbix-release-4.0-2.el6.noarch.rpm

		rpm -Uvh zabbix-release-4.0-2.el6.noarch.rpm

		

		#Clean and install with Yum

        yum clean all

		yum -y install zabbix-agent

		

		#Overwrite the conf file with attached

		cp zabbix_agentd.conf /etc/zabbix/zabbix_agentd.conf

		

		#Edit config to personalize for new system

		CONFIGPATH="/etc/zabbix/zabbix_agentd.conf"

		TARGET_KEY="Hostname"

		REPLACEMENT_VALUE="$(hostname)"

		sed -c -i "s/\($TARGET_KEY *= *\).*/\1$REPLACEMENT_VALUE/" $CONFIGPATH

		

		#Enable Zabbix as Service (Automatic Startup at Boot)

		service zabbix-agent enable

		

		#Start the agent

		service zabbix-agent start

		

	fi

}



ubuntu () {

	#Get the Package

	#wget https://repo.zabbix.com/zabbix/4.0/ubuntu/pool/main/z/zabbix-release/zabbix-release_4.0-3+bionic_all.deb

	#dpkg -i zabbix-release_4.0-3+bionic_all.deb



	#Install with apt

	apt-get update

	apt-get -y install zabbix-agent



	#Overwrite the conf file with attached

	cp zabbix_agentd.conf /etc/zabbix/zabbix_agentd.conf

	

	#Edit config to personalize for new systemctl

	CONFIGPATH="/etc/zabbix/zabbix_agentd.conf"

	TARGET_KEY="Hostname"

	REPLACEMENT_VALUE="$(hostname)"

	sed -i "s/\($TARGET_KEY *= *\).*/\1$REPLACEMENT_VALUE/" $CONFIGPATH

	

	#Restart Zabbix Agent

	service zabbix-agent restart

}



#Find OS and Forward to Appropriate Function

if (os_id == "ubuntu")

	then

		ubuntu

	else

    	os_ver="$(rpm -q centos-release | cut -d'-' -f3)"

		centos

fi



exit 0

Note for the Ubuntu section, the wget is commented out. If the Zabbix package isn’t already in your Ubuntu install, then uncomment that line.