Eric Loyd
119 lines
3.8 KiB
Bash
Executable File
119 lines
3.8 KiB
Bash
Executable File
#!/bin/bash
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# This is a bare-metal to Nagios Core build
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# Designed strictly for Raspberry Pi Zero 2 W
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# EverWatch Global Nagios World Conference 2026
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# Contact: Eric Loyd <eloyd@everwatch.global>
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do_msg() {
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msg="$1"
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shift
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toilet -f future "$msg" -F metal $*
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}
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do_done() {
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do_msg "Done." -F border
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}
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do_finished() {
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do_msg "All Done!" -F border -F gay -F border
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}
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# Get me a banner first
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echo "Installing *toilet* so you can see this stuff more easily..."
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sudo apt update
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sudo apt install -y toilet
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# Pre-preqs
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do_msg "Installing pre-reqs"
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sudo apt update && sudo apt dist-upgrade -y
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sudo apt install -y autoconf gcc libperl-dev make apache2 php php-gd libgd-dev \
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libapache2-mod-php libssl-dev daemon unzip wget libtool libxml2-dev \
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libjansson-dev libdbi-dev libsqlite3-dev libcjson-dev
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do_done
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# Make Nagios
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do_msg "Installing Nagios Core"
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sudo useradd nagios
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sudo groupadd nagcmd
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sudo usermod -aG nagcmd nagios
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sudo usermod -aG nagcmd www-data
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cd /tmp
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wget https://assets.nagios.com/downloads/nagioscore/releases/nagios-4.5.12.tar.gz
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tar -xzf nagios-4.5.12.tar.gz && rm nagios-4.5.12.tar.gz
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cd nagios-4.5.12
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./configure --with-command-group=nagcmd
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make all
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sudo make install
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sudo make install-commandmode
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sudo make install-init
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sudo make install-config
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sudo make install-webconf
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# Nagios password (nagiosadmin/nagiosadmin)
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sudo /bin/sh -c 'echo "nagiosadmin:\$apr1\$peYer4Fi\$KL9/8Ya8Zy6TOBtlmBZuP/" > /usr/local/nagios/etc/htpasswd.users'
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do_done
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# Nagios plugins
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do_msg "Installing Nagios plugins"
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cd /tmp
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wget https://nagios-plugins.org/download/nagios-plugins-2.4.11.tar.gz
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tar -xzf nagios-plugins-2.4.11.tar.gz && rm nagios-plugins-2.4.11.tar.gz
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cd nagios-plugins-2.4.11
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./configure --with-nagios-user=nagios --with-nagios-group=nagios
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make
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sudo make install
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# Final configs
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sudo systemctl enable apache2
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sudo systemctl enable nagios
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sudo systemctl start apache2
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sudo systemctl start nagios
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sudo a2enmod cgi
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sudo systemctl restart apache2
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do_done
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### Installing NCPA and the like, getting the box to monitor itself via NCPA
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# Install check_ncpa (C code from beta test)
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do_msg "Installing NCPA"
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arch=$(uname -m)
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file="check_ncpa.${arch}"
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if [ -r "$file" ]; then
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echo "Will install $file, since it's here..."
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echo "==> Installing ${file} to /usr/local/nagios/libexec..."
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sudo install -d /usr/local/nagios/libexec
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sudo install -m 0755 ${file} /usr/local/nagios/libexec/check_ncpa
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echo "==> Installation complete!"
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echo "Installed to: /usr/local/nagios/libexec/check_ncpa"
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else
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echo ""
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echo "### IMPORTANT:"
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echo "### You must extract, compile, and install the check_ncpa_c.2.Mar-05-26.tgz beta code to /usr/local/nagios/libexec"
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echo "### Failure to do so will result in service check failures that may be hard to diagnose."
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echo ""
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fi
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### Verify
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/usr/local/nagios/libexec/check_ncpa --version
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### Output: check_ncpa.c, Version 1.2.4
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# Install NCPA Agent
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cd ~/NWC2026-Fusion
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sudo apt install ./ncpa_3.3.1-1_armhf.deb
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### Verify
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/usr/local/nagios/libexec/check_ncpa -H localhost -t mytoken -M system/version
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### Output: OK: Version was #1 SMP Raspbian 1:6.12.75-1+rpt1 (2026-03-11) | 'version'=#1 SMP Raspbian 1:6.12.75-1+rpt1 (2026-03-11);;;
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do_done
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# Get localhost monitored via NCPA
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do_msg "Monitor thyself via NCPA"
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cd /usr/local/nagios/etc/
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sudo mkdir EWG && sudo chown nagios:nagios EWG
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sudo /bin/sh -c 'grep -q "cfg_dir=/usr/local/nagios/etc/EWG" nagios.cfg && echo "cfg_dir line already added." || echo "cfg_dir=/usr/local/nagios/etc/EWG" >> nagios.cfg'
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cd EWG
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sudo tar xvfz ~/NWC2026-Fusion/EWG_configs.tar.gz && sudo rm EWG_configs.tar.gz
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sudo sed -i -e "s/localhost:NCPA/${HOSTNAME}/g" *.cfg
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### Verify
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sudo /usr/local/nagios/bin/nagios -v /usr/local/nagios/etc/nagios.cfg
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### Output: Things look okay - No serious problems were detected during the pre-flight check
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do_done
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sudo systemctl restart nagios
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do_finished
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