265 lines
8.4 KiB
Bash
265 lines
8.4 KiB
Bash
#!/usr/bin/env bash
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#
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echo "Starting sensor setup."
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monidir="/opt/monitoring"
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snmpdconf="/etc/snmp/snmpd.conf"
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mkdir -p "$monidir"
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# Install snmp & snmpd
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if apt install -y smartmontools snmp snmpd tmux vim && systemctl enable --now snmpd; then
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echo "SmartMonTools, SNMP, SNMPD, tmux & vim installed."
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else
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echo "Something went wrong during installation of smartmontools, snmp, snmpd, tmux & vim."
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exit 1
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fi
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# Configure snmpd
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if grep -E '\brocommunity\b' "$snmpdconf" | grep -v 'rocommunity:' | grep -v public; then
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echo "rocommunity password already set, check line above for details."
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else
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read -p "Enter the rocommunity password: " rocompw
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echo "rocommunity $rocompw" >> "$snmpdconf"
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fi
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sed -i 's/agentaddress.*/agentaddress udp:161/' "$snmpdconf"
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sed -i 's/-u Debian-snmp/-u root/' /lib/systemd/system/snmpd.service
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systemctl daemon-reload
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read -p "Install Ceph sensors? [y/n] " answer
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case "$answer" in
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[Yy]|[Yy][Ee][Ss])
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echo "Installing Ceph sensors."
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touch "$monidir"/snmp-ceph-free.bash
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touch "$monidir"/snmp-ceph-used.bash
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echo "Files touched."
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echo -e "#!/bin/bash
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if [ \"\$1\" = \"-g\" ]; then
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echo .1.3.6.1.2.1.25.1.8
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echo integer
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ceph osd df | grep \"TOTAL\" | awk '{print \$12}'
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fi
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exit 0
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# EOF" > "$monidir"/snmp-ceph-free.bash
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echo "snmp-ceph-free.bash written."
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echo -e "#!/bin/bash
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if [ \"\$1\" = \"-g\" ]; then
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echo .1.3.6.1.2.1.25.1.9
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echo gauge
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ceph osd df | grep \"TOTAL\" | awk '{print \$14}'
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fi
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exit 0
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# EOF" > "$monidir"/snmp-ceph-used.bash
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echo "snmp-ceph-used.bash written."
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chmod u+x $monidir/*
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echo "Executable flags set."
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if grep -q ceph-free "$snmpdconf"; then
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echo "snmp-ceph-free already added to $snmpdconf"
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else
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echo "pass .1.3.6.1.2.1.25.1.8 /bin/sh /opt/monitoring/snmp-ceph-free.bash" >> "$snmpdconf"
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echo "Added snmp-ceph-free.bash to snmpd config."
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fi
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if grep -q ceph-used "$snmpdconf"; then
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echo "snmp-ceph-used already added to $snmpdconf"
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else
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echo "pass .1.3.6.1.2.1.25.1.9 /bin/sh /opt/monitoring/snmp-ceph-used.bash" >> "$snmpdconf"
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echo "Added snmp-ceph-used.bash to snmpd config."
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fi
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systemctl restart snmpd
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echo "ceph sensor configuration done."
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;;
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[Nn]|[Nn][Oo]|*)
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echo "Skipping Ceph sensors."
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;;
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esac
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read -p "Install RAM sensor? [y/n] " answer
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case "$answer" in
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[Yy]|[Yy][Ee][Ss])
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echo "Installing RAM sensor."
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touch "$monidir"/snmp-memusedpercent.bash
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echo "File touched."
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echo -e "#!/bin/bash
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#
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# Real Memory Percent Calculation
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total=\"\$(cat /proc/meminfo | grep 'MemTotal' | awk '{print \$2}')\"
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avail=\"\$(cat /proc/meminfo | grep 'MemAvailable' | awk '{print \$2}')\"
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used=\$((total - avail))
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prcnt=\$(( (used * 100) / total ))
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if [ \"\$1\" = \"-g\" ]; then
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echo \".1.3.6.1.2.1.25.1.69\"
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echo \"integer\"
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echo \"\$prcnt\"
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fi
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exit 0
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# EOF" > "$monidir"/snmp-memusedpercent.bash
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echo "snmp-memusedpercent.bash written."
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chmod u+x $monidir/*
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echo "Executable flags set."
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if grep -q memusedpercent "$snmpdconf"; then
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echo "snmp-memusedpercent already added to $snmpdconf"
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else
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echo "pass .1.3.6.1.2.1.25.1.69 /bin/sh /opt/monitoring/snmp-memusedpercent.bash" >> "$snmpdconf"
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echo "Added snmp-memusedpercent.bash to snmpd config."
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fi
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systemctl restart snmpd
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echo "RAM sensor configuration done."
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;;
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[Nn]|[Nn][Oo]|*)
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echo "Skipping RAM sensor."
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;;
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esac
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read -p "Install SMART sensor? [y/n] " answer
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case "$answer" in
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[Yy]|[Yy][Ee][Ss])
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echo "Installing SMARTEST sensor."
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username="monitoring"
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userhome="/home/$username"
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monidir="/opt/monitoring"
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prtgdir="/var/prtg/scriptsxml"
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croncmd="/opt/monitoring/smartest.bash >> "$userhome"/prtg_smartest.log 2>&1"
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crontime="0 * * * * $croncmd"
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# Create user
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if useradd -m $username; then
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echo "$username created"
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# Set password
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read -p "Enter password for the "$username" user: " password
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echo "$username:$password" | chpasswd
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echo "Password set"
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else
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echo "$username already exists"
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fi
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# Create directories and files
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mkdir -p $prtgdir
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# Create files in user home
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touch $userhome/active_disks.txt
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touch $userhome/excluded_disks.txt
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touch $userhome/prtg_smartest.log
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touch $userhome/prtgout.xml
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touch $monidir/smartest.bash
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touch $prtgdir/prtg_smartest.bash
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echo "Files touched."
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# Change ownership of files
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chown $username:$username $userhome/*
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chown $username:$username $prtgdir/*
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echo "Ownership changed."
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# Set executable flags
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chmod u+x $prtgdir/*
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chmod u+x $monidir/*
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echo "Executable flags set."
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# Create crontab to check disks every hour
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if crontab -l | grep smartest; then
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echo "Cronjob already exists."
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else
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(crontab -l 2>/dev/null; echo "$crontime") | crontab -
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echo "Cronjob created"
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fi
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# Write prtg_smartest.bash
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echo -e "#!/usr/bin/env bash
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#
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cat \"/home/monitoring/prtgout.xml\"
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# EOF" > $prtgdir/prtg_smartest.bash
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echo "$prtgdir/prtg_smartest.bash written"
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# Write smartest.bash
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echo -e "#!/usr/bin/env bash
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#
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#Proxmox SMART Monitoring for PRTG | v2.0 Mar 2025 | exaSys AG
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#
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channel_id=2
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output=\"/home/monitoring/prtgout.xml\"
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log=\"/home/monitoring/prtg_smartest.log\"
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active_disks=\"/home/monitoring/active_disks.txt\"
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excluded_disks=\"/home/monitoring/excluded_disks.txt\"
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disk_count_real=\"\$(lsblk -d | tail -n +2 | wc -l)\"
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disk_count_current=\"\$(cat \"\$active_disks\" | wc -l)\"
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if [ ! -f \"\$active_disks\" ] || [ ! -s \"\$active_disks\" ]; then
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lsblk -d | awk '{print \$1}' | tail -n +2 > \"\$active_disks\"
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elif [ \"\$disk_count_real\" -gt \"\$disk_count_current\" ]; then
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lsblk -d | awk '{print \$1}' | tail -n +2 > \"\$active_disks\"
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echo \"Disk(s) added\" >> \"\$log\" 2>&1
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else
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echo \"<prtg>\" > \"\$output\"
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for disk in \$(cat \"\$active_disks\")
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do
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if grep \"\$disk\" \"\$excluded_disks\" >> \"\$log\" 2>&1; then
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echo \"\$disk is excluded\" >> \"\$log\" 2>&1
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elif [[ \"\$disk\" == zd* ]]; then
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echo \"\$disk is a ZFS device node, excluding\" >> \"\$log\" 2>&1
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elif [[ \"\$disk\" == rbd* ]]; then
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echo \"\$disk is a Ceph device node, excluding\" >> \"\$log\" 2>&1
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else
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smartresult=\$(/usr/sbin/smartctl -a /dev/\"\$disk\")
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if grep -E \"OK|PASSED\" <<< \"\$smartresult\" >> \"\$log\" 2>&1; then
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echo \"\$disk is okay\" >> \"\$log\"
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echo -e \"<result>\\\n<id>channel_\$channel_id</id>\\\n<channel>\$disk SMART Status</channel>\\\n<LimitMode>1</LimitMode>\\\n<LimitMinError>0.5</LimitMinError>\\\n<unit>Custom</unit>\\\n<customunit></customunit>\\\n<value>1</value>\\\n</result>\" >> \"\$output\"
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channel_id=\$((channel_id + 1))
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if grep -i \"Wear_Leveling_Count\" <<< \"\$smartresult\" >> \"\$log\" 2>&1; then
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wlcresult=\$(/usr/sbin/smartctl -a /dev/\"\$disk\" | grep -i Wear_Leveling_Count | awk '{print \$4}' | sed 's/^0*//')
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echo \"\$disk: \$wlcresult% Lifetime remaining\" >> \"\$log\" 2>&1
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echo -e \"<result>\\\n<id>channel_\$channel_id</id>\\\n<channel>\$disk WLC Lifetime</channel>\\\n<LimitMode>1</LimitMode>\\\n<LimitMinWarning>25</LimitMinWarning>\\\n<LimitMinError>10</LimitMinError>\\\n<unit>Custom</unit>\\\n<customunit>%</customunit>\\\n<value>\$wlcresult</value>\\\n</result>\" >> \"\$output\"
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channel_id=\$((channel_id + 1))
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else
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echo \"\$disk: No WLC available\" >> \"\$log\" 2>&1
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fi
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else
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echo \"\$disk: SMART failed\" >> \"\$log\" 2>&1
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echo -e \"<result>\\\n<id>channel_\$channel_id</id>\\\n<channel>\$disk SMART Status</channel>\\\n<LimitMode>1</LimitMode>\\\n<LimitMinError>0.5</LimitMinError>\\\n<unit>Custom</unit>\\\n<customunit></customunit>\\\n<value>0</value>\\\n</result>\" >> \"\$output\"
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fi
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fi
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done
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fi
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echo \"</prtg>\" >> \"\$output\"
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# EOF" > $monidir/smartest.bash
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echo "$monidir/smartest.bash written."
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chmod u+x $monidir/*
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echo "Executable flags set."
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echo "SMART monitoring configuration done."
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# Exclude disks
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read -p "Enter raw disk name to exclude (e.g. sr0) or leave empty: " exclude
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if [[ -n $exclude ]]; then
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echo "$exclude" >> "$userhome"/excluded_disks.txt
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fi
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echo "Exclusion disk list updated."
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# Execute smartest.bash to populate disk list
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source /opt/monitoring/smartest.bash
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source /opt/monitoring/smartest.bash
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echo "Active disk list populated."
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;;
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[Nn]|[Nn][Oo]|*)
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echo "Skipping SMART sensor."
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;;
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esac
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echo "All done."
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# EOF
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