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Diffstat (limited to 'scripts/rc-sstat.in')
| -rw-r--r-- | scripts/rc-sstat.in | 149 |
1 files changed, 149 insertions, 0 deletions
diff --git a/scripts/rc-sstat.in b/scripts/rc-sstat.in new file mode 100644 index 00000000..a204dbda --- /dev/null +++ b/scripts/rc-sstat.in @@ -0,0 +1,149 @@ +#!@SHELL@ +# Copyright (c) 2015 The OpenRC Authors. +# See the Authors file at the top-level directory of this distribution and +# https://github.com/OpenRC/openrc/blob/master/AUTHORS +# +# This file is part of OpenRC. It is subject to the license terms in +# the LICENSE file found in the top-level directory of this +# distribution and at https://github.com/OpenRC/openrc/blob/master/LICENSE +# This file may not be copied, modified, propagated, or distributed +# except according to the terms contained in the LICENSE file. + +# Define variables +scandir="/run/openrc/s6-scan" +statfile=/dev/shm/s6-svstat.${USER} + +color_red='\E[01;31m' +color_green='\E[32m' +color_yellow='\E[01;33m' + +# Time Modules +uptimeModules() { + # Given a single integer argument representing seconds of uptime... + # convert uptime to a friendly human readable string: '2d 16h 58m 46s' + # define a variable to keep track of the longest length uptime string + uSec=${1:-0} + + uDay=$(( $uSec / 86400 )) + uSec=$(( $uSec % 86400 )) + uHour=$(( $uSec / 3600 )) + uSec=$(( $uSec % 3600 )) + uMin=$(( $uSec / 60 )) + uSec=$(( $uSec % 60 )) + + [ $uDay -ne 0 ] && pDay="${uDay}d " || pDay="" + [ $uHour -ne 0 ] && pHour="${uHour}h " || pHour="" + [ $uMin -ne 0 ] && pMin="${uMin}m " || pMin="" + [ $uSec -ne 0 ] && pSec="${uSec}s " || pSec="" + + parsedUptime="$( echo ${pDay}${pHour}${pMin}${pSec} | sed 's#[ \t]*$##' )" + uCharCount=${#parsedUptime} +} + +# Make sure we are running as root +if [ $(id -u) != 0 ]; then + printf "This command must be run as root\n" + exit 1 +fi + +# Make sure scandir exists +if [ ! -d $scandir ]; then + printf "%s\n" "$scandir does not exist" + exit 1 +fi + +# Make sure s6-svscan is running +if ! pgrep s6-svscan >/dev/null ; then + printf "s6-svscan is not running\n" + exit 1 +fi + +# If TERM is undefined (launching sstat through an ssh command) then make it vt100 +if [ -z $TERM -o $TERM = "dumb" ]; then + export TERM=vt100 +fi + +# Gather list of candidate services s6-supervise may be supervising +# filter for folders and symlinks at /run/openrc/s6-scan/* ommiting output starting with '.' +services="$(find $scandir -maxdepth 1 -mindepth 1 \( -type d -or -type l \) | awk -F'/' '{ if ( $NF !~ "^\\." ) print $NF}')" +if [ -z "$services" ]; then + printf "s6 found no services configured for supervision\n" + exit 1 +fi + +# Gather status for each service from s6-svstat +# write to tmp file in memory for non I/O bound repeatative access +rm -f $statfile 2>/dev/null +for service in $services ; do + echo "$service $(s6-svstat ${scandir}/${service})" >> $statfile +done + +# Define longest string from parsed uptime (default to 7 to match string length of 'Up Time') +timeStringLength=7 +for uptime in $(awk '$2 == "up" {print $5}' $statfile | sort -run) +do + uptimeModules $uptime + [ ${uCharCount} -gt $timeStringLength ] && timeStringLength=$uCharCount +done + + +# Print the status header like so... +# Service Name State PID Up Time Start Time +#---------------------------- ----- ----- -------------- ------------------- +printf "\n" +printf "%28s %5s %5s %${timeStringLength}s %19s\n" "Service Name" "State" "PID" "Up Time" "Start Time" +for dashes in 28 5 5 $timeStringLength 19 ; do + printf "%0.s-" $(seq 1 $dashes) ; echo -n ' ' +done && printf "\n" + + +# sshd up (pid 26300) 80373 seconds +cat $statfile | \ +while read line +do + set $line + + service=$1 + state=$2 + pid=${4/)/} + time=$5 + + # call function to convert time in seconds and define additional variables + uptimeModules $time + + if [ "$state" = up ]; then + if [ $time -lt 30 ]; then + # uptime < 30 seconds, color the whole line yellow + echo -en "$color_yellow" + # 1st 4 columns are printed with printf for space padding + printf "%28s %5s %5s %${timeStringLength}s" $service $state $pid "$parsedUptime" + # 4th column is output from date -d + echo -e " $(date -d "${time} seconds ago" "+%F %T")" + # reset terminal colors + tput sgr0 + else + printf "%28s" $service + # uptime > 30 seconds, color just the "state" value green + echo -en "$color_green" + printf " %5s" $state + # reset terminal colors + tput sgr0 + printf " %5s" $pid + printf " %${timeStringLength}s" "$parsedUptime" + echo -e " $(date -d "${time} seconds ago" "+%F %T")" + fi + else + printf "%28s" $service + echo -en "$color_red" + printf " %5s" $state + tput sgr0 + echo "" + fi +done + +# Cleanup +rm -f $statfile 2>/dev/null + +printf "\n\n" + +rc-status |