icinga2-checks/install.sh

#!/bin/bash

# apt update && apt install -y git && cd /opt && git -C /opt/icinga2-checks pull || git clone https://git.dp15.us/dpanzer/icinga2-checks.git /opt/icinga2-checks && bash /opt/icinga2-checks/install.sh

ln_existing() {
  src=$1
  dest=$2
  if [[ -e "$dest" ]] || [[ -L "$dest" ]]; then
    rm "$dest"
  fi
  ln -s "$src" "$dest"
}

apt update
apt install -y python3-venv git sysstat bc
pip install -U pip wheel setuptools

mkdir -p /usr/lib64/nagios/plugins/

# Install global pip packages
#pip install psutil

git -C /opt/icinga2-checks pull || git clone https://git.dp15.us/dpanzer/icinga2-checks.git /opt/icinga2-checks

mkdir -p /opt/venvs

if [[ ! -d /opt/venvs/icinga2_checks ]]; then
  echo "Creating venv in /opt/venvs/icinga2_checks"
  python3 -m venv /opt/venvs/icinga2_checks
fi
if [[ ! -d /opt/venvs/check_pve ]]; then
  echo "Creating venv in /opt/venvs/check_pve"
  python3 -m venv /opt/venvs/check_pve
fi

/opt/venvs/icinga2_checks/bin/pip install -U pip wheel setuptools
/opt/venvs/icinga2_checks/bin/pip install -r /opt/icinga2-checks/requirements.txt

/opt/venvs/check_pve/bin/pip install -U pip wheel setuptools
/opt/venvs/check_pve/bin/pip install -r /opt/icinga2-checks/check_pve/requirements.txt

ln_existing /opt/icinga2-checks/check_iowait.sh /usr/lib64/nagios/plugins/check_iowait
ln_existing /opt/icinga2-checks/check_bandwidth.py /usr/lib64/nagios/plugins/check_bandwidth
ln_existing /opt/icinga2-checks/check_curl.sh /usr/lib64/nagios/plugins/check_curl

# ==============================================================================
# Install the Linuxfabrik checks

if [[ ! -d /opt/linuxfabrik-monitoring-plugins ]]; then
  git clone https://github.com/Linuxfabrik/monitoring-plugins.git /opt/linuxfabrik-monitoring-plugins

  if [[ ! -d /opt/venvs/linuxfabrik ]]; then
    echo "Creating venv in /opt/venvs/linuxfabrik"
    python3 -m venv /opt/venvs/linuxfabrik
  fi

  cd /opt/linuxfabrik-monitoring-plugins
  rm -rf lib
  git clone https://github.com/Linuxfabrik/lib.git
  /opt/venvs/linuxfabrik/bin/pip install -U pip wheel setuptools
  /opt/venvs/linuxfabrik/bin/pip install bs4 psutil smbprotocol vici pymysql
fi

ln_existing /opt/linuxfabrik-monitoring-plugins/check-plugins/disk-io/disk-io3 /usr/lib64/nagios/plugins/disk-io
ln_existing /opt/linuxfabrik-monitoring-plugins/check-plugins/cpu-usage/cpu-usage3 /usr/lib64/nagios/plugins/cpu-usage
ln_existing /opt/linuxfabrik-monitoring-plugins/check-plugins/disk-usage/disk-usage3 /usr/lib64/nagios/plugins/disk-usage
ln_existing /opt/linuxfabrik-monitoring-plugins/check-plugins/memory-usage/memory-usage3 /usr/lib64/nagios/plugins/memory-usage
ln_existing /opt/linuxfabrik-monitoring-plugins/check-plugins/ping/ping3 /usr/lib64/nagios/plugins/ping
ln_existing /opt/linuxfabrik-monitoring-plugins/check-plugins/disk-smart/disk-smart3 /usr/lib64/nagios/plugins/disk-smart

setcap cap_net_raw+ep /usr/lib/nagios/plugins/check_icmp
setcap cap_net_raw+ep /usr/lib/nagios/plugins/check_ping
setcap 'cap_net_raw+ep' "$(which ping)"

ln_existing /etc/ssl/certs/ca-certificates.crt /opt/venvs/icinga2_checks/lib/python3.10/site-packages/certifi/cacert.pem