initial commit
This commit is contained in:
Lucas Decrock
parent
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06a4edc2c4
3 changed files with 402 additions and 0 deletions
6
README.md
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6
README.md
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# NetWeak Agent
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[](https://www.netweak.com)
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NetWeak provides free linux server monitoring. [Create a free account](https://www.netweak.com)
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The NetWeak agent sends monitoring data from your linux server to our API on a regular basis.
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244
agent.sh
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244
agent.sh
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#!/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="BETA.1"
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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://beta.netweak.com/api/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 "$data_post" --no-check-certificate "https://beta.netweak.com/api/agent/report"
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wget_pid=$!
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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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152
install.sh
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152
install.sh
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#!/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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# Prepare output
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echo -e "|\n| NetWeak Installer\n| ===================\n|"
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# Check if user is root
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if [ $(id -u) != "0" ];
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then
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echo -e "| Error: You need to be root to install the NetWeak agent\n|"
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echo -e "| The agent itself will NOT be running as root but instead under its own non-privileged user\n|"
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exit 1
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fi
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# Parameters required
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if [ $# -lt 1 ]
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then
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echo -e "| Usage: bash $0 'token'\n|"
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exit 1
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fi
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# Check if crontab is installed
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if [ ! -n "$(command -v crontab)" ]
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then
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||||||
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# Confirm crontab installation
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echo "|" && read -p "| Crontab is required and could not be found. Do you want to install it? [Y/n] " input_variable_install
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# Attempt to install crontab
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||||||
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if [ -z $input_variable_install ] || [ $input_variable_install == "Y" ] || [ $input_variable_install == "y" ]
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then
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if [ -n "$(command -v apt-get)" ]
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then
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echo -e "|\n| Notice: Installing required package 'cron' via 'apt-get'"
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apt-get -y update
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apt-get -y install cron
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elif [ -n "$(command -v yum)" ]
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then
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echo -e "|\n| Notice: Installing required package 'cronie' via 'yum'"
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yum -y install cronie
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||||||
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if [ ! -n "$(command -v crontab)" ]
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then
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||||||
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echo -e "|\n| Notice: Installing required package 'vixie-cron' via 'yum'"
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yum -y install vixie-cron
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fi
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elif [ -n "$(command -v pacman)" ]
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then
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echo -e "|\n| Notice: Installing required package 'cronie' via 'pacman'"
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||||||
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pacman -S --noconfirm cronie
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fi
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fi
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||||||
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if [ ! -n "$(command -v crontab)" ]
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||||||
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then
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||||||
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# Show error
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||||||
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echo -e "|\n| Error: Crontab is required and could not be installed\n|"
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exit 1
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||||||
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fi
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||||||
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fi
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||||||
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# Check if cron is running
|
||||||
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if [ -z "$(ps -Al | grep cron | grep -v grep)" ]
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||||||
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then
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||||||
|
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||||||
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# Confirm cron service
|
||||||
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echo "|" && read -p "| Cron is available but not running. Do you want to start it? [Y/n] " input_variable_service
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||||||
|
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||||||
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# Attempt to start cron
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||||||
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if [ -z $input_variable_service ] || [ $input_variable_service == "Y" ] || [ $input_variable_service == "y" ]
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||||||
|
then
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||||||
|
if [ -n "$(command -v apt-get)" ]
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||||||
|
then
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||||||
|
echo -e "|\n| Notice: Starting 'cron' via 'service'"
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||||||
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service cron start
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||||||
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elif [ -n "$(command -v yum)" ]
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||||||
|
then
|
||||||
|
echo -e "|\n| Notice: Starting 'crond' via 'service'"
|
||||||
|
chkconfig crond on
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||||||
|
service crond start
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||||||
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elif [ -n "$(command -v pacman)" ]
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||||||
|
then
|
||||||
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echo -e "|\n| Notice: Starting 'cronie' via 'systemctl'"
|
||||||
|
systemctl start cronie
|
||||||
|
systemctl enable cronie
|
||||||
|
fi
|
||||||
|
fi
|
||||||
|
|
||||||
|
# Check if cron was started
|
||||||
|
if [ -z "$(ps -Al | grep cron | grep -v grep)" ]
|
||||||
|
then
|
||||||
|
# Show error
|
||||||
|
echo -e "|\n| Error: Cron is available but could not be started\n|"
|
||||||
|
exit 1
|
||||||
|
fi
|
||||||
|
fi
|
||||||
|
|
||||||
|
# Attempt to delete previous agent
|
||||||
|
if [ -f /etc/netweak/agent.sh ]
|
||||||
|
then
|
||||||
|
# Remove agent dir
|
||||||
|
rm -Rf /etc/netweak
|
||||||
|
|
||||||
|
# Remove cron entry and user
|
||||||
|
if id -u netweak >/dev/null 2>&1
|
||||||
|
then
|
||||||
|
(crontab -u netweak -l | grep -v "/etc/netweak/agent.sh") | crontab -u netweak - && userdel netweak
|
||||||
|
else
|
||||||
|
(crontab -u root -l | grep -v "/etc/netweak/agent.sh") | crontab -u root -
|
||||||
|
fi
|
||||||
|
fi
|
||||||
|
|
||||||
|
# Create agent dir
|
||||||
|
mkdir -p /etc/netweak
|
||||||
|
|
||||||
|
# Create logs dir
|
||||||
|
mkdir -p /etc/netweak/logs
|
||||||
|
|
||||||
|
# Download agent
|
||||||
|
echo -e "| Downloading agent.sh to /etc/netweak\n|\n| + $(wget -nv -o /dev/stdout -O /etc/netweak/agent.sh --no-check-certificate https://raw.github.com/netweak/agent/master/agent.sh)"
|
||||||
|
|
||||||
|
if [ -f /etc/netweak/agent.sh ]
|
||||||
|
then
|
||||||
|
# Create auth file
|
||||||
|
echo "$1" > /etc/netweak/token.conf
|
||||||
|
|
||||||
|
# Create user
|
||||||
|
useradd netweak -r -d /etc/netweak -s /bin/false
|
||||||
|
|
||||||
|
# Modify user permissions
|
||||||
|
chown -R netweak:netweak /etc/netweak && chmod -R 700 /etc/netweak
|
||||||
|
|
||||||
|
# Modify ping permissions
|
||||||
|
chmod +s `type -p ping`
|
||||||
|
|
||||||
|
# Configure cron
|
||||||
|
crontab -u netweak -l 2>/dev/null | { cat; echo "* * * * * bash /etc/netweak/agent.sh > /etc/netweak/log/cron.log 2>&1"; } | crontab -u netweak -
|
||||||
|
|
||||||
|
# Show success
|
||||||
|
echo -e "|\n| Success: The NetWeak agent has been installed\n|"
|
||||||
|
|
||||||
|
# Attempt to delete installation script
|
||||||
|
if [ -f $0 ]
|
||||||
|
then
|
||||||
|
rm -f $0
|
||||||
|
fi
|
||||||
|
else
|
||||||
|
# Show error
|
||||||
|
echo -e "|\n| Error: The NetWeak agent could not be installed\n|"
|
||||||
|
fi
|
||||||
Loading…
Reference in a new issue