244 lines
7.7 KiB
Bash
244 lines
7.7 KiB
Bash
#!/bin/bash
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# Set env
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PATH=/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin
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# Agent version
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version="1.1.0"
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# API Token
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if [ -f /etc/netweak/token.conf ]
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then
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auth=($(cat /etc/netweak/token.conf))
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else
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echo "Error: File /etc/netweak/token.conf is missing."
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exit 1
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fi
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# Prepare values
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function prep ()
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{
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echo "$1" | sed -e 's/^ *//g' -e 's/ *$//g' | sed -n '1 p'
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}
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# Base64 values
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function base ()
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{
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echo "$1" | tr -d '\n' | base64 | tr -d '=' | tr -d '\n' | sed 's/\//%2F/g' | sed 's/\+/%2B/g'
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}
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# Integer values
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function int ()
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{
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echo ${1/\.*}
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}
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# Filter numeric
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function num ()
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{
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case $1 in
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''|*[!0-9\.]*) echo 0 ;;
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*) echo $1 ;;
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esac
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}
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# Agent version
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version=$(prep "$version")
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# System uptime
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uptime=$(prep $(int "$(cat /proc/uptime | awk '{ print $1 }')"))
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# Login session count
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sessions=$(prep "$(who | wc -l)")
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# Process count
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processes=$(prep "$(ps axc | wc -l)")
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# Process array
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processes_array="$(ps axc -o uname:12,pcpu,rss,cmd --sort=-pcpu,-rss --noheaders --width 120)"
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processes_array="$(echo "$processes_array" | grep -v " ps$" | sed 's/ \+ / /g' | sed '/^$/d' | tr "\n" ";")"
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# File descriptors
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file_handles=$(prep $(num "$(cat /proc/sys/fs/file-nr | awk '{ print $1 }')"))
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file_handles_limit=$(prep $(num "$(cat /proc/sys/fs/file-nr | awk '{ print $3 }')"))
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# OS details
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os_kernel=$(prep "$(uname -r)")
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if ls /etc/*release > /dev/null 2>&1
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then
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os_name=$(prep "$(cat /etc/*release | grep '^PRETTY_NAME=\|^NAME=\|^DISTRIB_ID=' | awk -F\= '{ print $2 }' | tr -d '"' | tac)")
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fi
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if [ -z "$os_name" ]
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then
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if [ -e /etc/redhat-release ]
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then
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os_name=$(prep "$(cat /etc/redhat-release)")
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elif [ -e /etc/debian_version ]
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then
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os_name=$(prep "Debian $(cat /etc/debian_version)")
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fi
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if [ -z "$os_name" ]
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then
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os_name=$(prep "$(uname -s)")
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fi
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fi
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case $(uname -m) in
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x86_64)
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os_arch=$(prep "x64")
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;;
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i*86)
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os_arch=$(prep "x86")
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;;
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*)
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os_arch=$(prep "$(uname -m)")
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;;
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esac
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# CPU details
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cpu_name=$(prep "$(cat /proc/cpuinfo | grep 'model name' | awk -F\: '{ print $2 }')")
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cpu_cores=$(prep "$(($(cat /proc/cpuinfo | grep 'model name' | awk -F\: '{ print $2 }' | sed -e :a -e '$!N;s/\n/\|/;ta' | tr -cd \| | wc -c)+1))")
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if [ -z "$cpu_name" ]
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then
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cpu_name=$(prep "$(cat /proc/cpuinfo | grep 'vendor_id' | awk -F\: '{ print $2 } END { if (!NR) print "N/A" }')")
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cpu_cores=$(prep "$(($(cat /proc/cpuinfo | grep 'vendor_id' | awk -F\: '{ print $2 }' | sed -e :a -e '$!N;s/\n/\|/;ta' | tr -cd \| | wc -c)+1))")
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fi
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cpu_freq=$(prep "$(cat /proc/cpuinfo | grep 'cpu MHz' | awk -F\: '{ print $2 }')")
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if [ -z "$cpu_freq" ]
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then
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cpu_freq=$(prep $(num "$(lscpu | grep 'CPU MHz' | awk -F\: '{ print $2 }' | sed -e 's/^ *//g' -e 's/ *$//g')"))
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fi
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# RAM usage
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ram_total=$(prep $(num "$(cat /proc/meminfo | grep ^MemTotal: | awk '{ print $2 }')"))
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ram_free=$(prep $(num "$(cat /proc/meminfo | grep ^MemFree: | awk '{ print $2 }')"))
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ram_cached=$(prep $(num "$(cat /proc/meminfo | grep ^Cached: | awk '{ print $2 }')"))
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ram_buffers=$(prep $(num "$(cat /proc/meminfo | grep ^Buffers: | awk '{ print $2 }')"))
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ram_usage=$((($ram_total-($ram_free+$ram_cached+$ram_buffers))*1024))
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ram_total=$(($ram_total*1024))
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# Swap usage
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swap_total=$(prep $(num "$(cat /proc/meminfo | grep ^SwapTotal: | awk '{ print $2 }')"))
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swap_free=$(prep $(num "$(cat /proc/meminfo | grep ^SwapFree: | awk '{ print $2 }')"))
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swap_usage=$((($swap_total-$swap_free)*1024))
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swap_total=$(($swap_total*1024))
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# Disk usage
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disk_total=$(prep $(num "$(($(df -P -B 1 | grep '^/' | awk '{ print $2 }' | sed -e :a -e '$!N;s/\n/+/;ta')))"))
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disk_usage=$(prep $(num "$(($(df -P -B 1 | grep '^/' | awk '{ print $3 }' | sed -e :a -e '$!N;s/\n/+/;ta')))"))
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# Disk array
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disk_array=$(prep "$(df -P -B 1 | grep '^/' | awk '{ print $1" "$2" "$3";" }' | sed -e :a -e '$!N;s/\n/ /;ta' | awk '{ print $0 } END { if (!NR) print "N/A" }')")
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# Active connections
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if [ -n "$(command -v ss)" ]
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then
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connections=$(prep $(num "$(ss -tun | tail -n +2 | wc -l)"))
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else
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connections=$(prep $(num "$(netstat -tun | tail -n +3 | wc -l)"))
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fi
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# Network interface
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nic=$(prep "$(ip route get 8.8.8.8 | grep dev | awk -F'dev' '{ print $2 }' | awk '{ print $1 }')")
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if [ -z $nic ]
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then
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nic=$(prep "$(ip link show | grep 'eth[0-9]' | awk '{ print $2 }' | tr -d ':')")
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fi
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# IP addresses and network usage
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ipv4=$(prep "$(ip addr show $nic | grep 'inet ' | awk '{ print $2 }' | awk -F\/ '{ print $1 }' | grep -v '^127' | awk '{ print $0 } END { if (!NR) print "N/A" }')")
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ipv6=$(prep "$(ip addr show $nic | grep 'inet6 ' | awk '{ print $2 }' | awk -F\/ '{ print $1 }' | grep -v '^::' | grep -v '^0000:' | grep -v '^fe80:' | awk '{ print $0 } END { if (!NR) print "N/A" }')")
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if [ -d /sys/class/net/$nic/statistics ]
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then
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rx=$(prep $(num "$(cat /sys/class/net/$nic/statistics/rx_bytes)"))
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tx=$(prep $(num "$(cat /sys/class/net/$nic/statistics/tx_bytes)"))
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else
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rx=$(prep $(num "$(ip -s link show $nic | grep '[0-9]*' | grep -v '[A-Za-z]' | awk '{ print $1 }' | sed -n '1 p')"))
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tx=$(prep $(num "$(ip -s link show $nic | grep '[0-9]*' | grep -v '[A-Za-z]' | awk '{ print $1 }' | sed -n '2 p')"))
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fi
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# Average system load
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load=$(prep "$(cat /proc/loadavg | awk '{ print $1" "$2" "$3 }')")
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# Detailed system load calculation
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time=$(date +%s)
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stat=($(cat /proc/stat | head -n1 | sed 's/[^0-9 ]*//g' | sed 's/^ *//'))
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cpu=$((${stat[0]}+${stat[1]}+${stat[2]}+${stat[3]}))
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io=$((${stat[3]}+${stat[4]}))
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idle=${stat[3]}
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if [ -e /etc/netweak/cache ]
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then
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data=($(cat /etc/netweak/cache))
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interval=$(($time-${data[0]}))
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cpu_gap=$(($cpu-${data[1]}))
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io_gap=$(($io-${data[2]}))
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idle_gap=$(($idle-${data[3]}))
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if [[ $cpu_gap > "0" ]]
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then
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load_cpu=$(((1000*($cpu_gap-$idle_gap)/$cpu_gap+5)/10))
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fi
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if [[ $io_gap > "0" ]]
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then
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load_io=$(((1000*($io_gap-$idle_gap)/$io_gap+5)/10))
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fi
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if [[ $rx > ${data[4]} ]]
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then
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rx_gap=$(($rx-${data[4]}))
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fi
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if [[ $tx > ${data[5]} ]]
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then
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tx_gap=$(($tx-${data[5]}))
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fi
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fi
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# System load cache
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echo "$time $cpu $io $idle $rx $tx" > /etc/netweak/cache
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# Prepare load variables
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rx_gap=$(prep $(num "$rx_gap"))
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tx_gap=$(prep $(num "$tx_gap"))
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load_cpu=$(prep $(num "$load_cpu"))
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load_io=$(prep $(num "$load_io"))
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# Get network latency
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ping_eu=$(prep $(num "$(ping -c 2 -w 2 ping-eu.netweak.com | grep rtt | cut -d'/' -f4 | awk '{ print $3 }')"))
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ping_us=$(prep $(num "$(ping -c 2 -w 2 ping-us.netweak.com | grep rtt | cut -d'/' -f4 | awk '{ print $3 }')"))
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ping_as=$(prep $(num "$(ping -c 2 -w 2 ping-as.netweak.com | grep rtt | cut -d'/' -f4 | awk '{ print $3 }')"))
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# Build data for post
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data_post="token=${auth[0]}&data=$(base "$version") $(base "$uptime") $(base "$sessions") $(base "$processes") $(base "$processes_array") $(base "$file_handles") $(base "$file_handles_limit") $(base "$os_kernel") $(base "$os_name") $(base "$os_arch") $(base "$cpu_name") $(base "$cpu_cores") $(base "$cpu_freq") $(base "$ram_total") $(base "$ram_usage") $(base "$swap_total") $(base "$swap_usage") $(base "$disk_array") $(base "$disk_total") $(base "$disk_usage") $(base "$connections") $(base "$nic") $(base "$ipv4") $(base "$ipv6") $(base "$rx") $(base "$tx") $(base "$rx_gap") $(base "$tx_gap") $(base "$load") $(base "$load_cpu") $(base "$load_io") $(base "$ping_eu") $(base "$ping_us") $(base "$ping_as")"
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# API request with automatic termination
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if [ -n "$(command -v timeout)" ]
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then
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timeout -s SIGKILL 30 wget -q -o /dev/null -O /etc/netweak/log/agent.log -T 25 --post-data "$data_post" --no-check-certificate "https://api.netweak.com/agent/report"
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else
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wget -q -o /dev/null -O /etc/netweak/log/agent.log -T 25 --post-data "$data_post" --no-check-certificate "https://api.netweak.com/agent/report"
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wget_pid=$!
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wget_counter=0
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wget_timeout=30
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while kill -0 "$wget_pid" && (( wget_counter < wget_timeout ))
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do
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sleep 1
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(( wget_counter++ ))
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done
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kill -0 "$wget_pid" && kill -s SIGKILL "$wget_pid"
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fi
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# Finished
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exit 1
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