Bash threaded parallel with getopt example

release_non-swarm.sh

#!/bin/bash

OPTS=`getopt -o vhns: --long service:,sha:,server: -n 'parse-options' -- "$@"`
fail=false

if [ $? != 0 ] ; then echo "Failed parsing options." >&2 ; exit 1 ; fi

eval set -- "$OPTS"
servers=()
while true; do
  case "$1" in
    --service ) service=$2; shift 2 ;;
    --sha )    sha=$2; shift 2 ;;
    --server ) servers+="$2"; servers+=","; shift 2 ;;
    --        ) shift; break ;;
    * ) break ;;
  esac
done

servers=$(echo "$servers"|tr "," " ")

if [ -z "$servers" ]; then
  servers=("default" "default" "default")
  echo "servers using the default of ${servers[@]}"
fi

if [ -z "$service" ]; then
  echo "service must be specified"
  exit 1
fi

if [ -z "$sha" ]; then
  echo "sha must be specified"
  exit 1
fi
function printreport {
  echo
  echo puppet run for $1:
  cat /dev/shm/puppetmp-$1
  rm /dev/shm/puppetmp-$1
  echo
}

if ssh yourmom@home "cd <directory>;<command> --servers ${servers[@]} --service ${service} --sha ${sha}"
then
  for i in ${servers[@]}
  do
    ssh <user>@$i "puppet agent -t --tags <tags>" >/dev/shm/puppetmp-$i 2>&1 &
    PIDARRAY+=($!:$i)
  done

  for j in ${PIDARRAY[@]}
  do
    PID=$(echo $j|cut -d : -f 1)
    SERVER=$(echo $j|cut -d : -f 2)
    wait $PID
    STATUS=$?
    if [[ $STATUS -eq 0 ]] || [[ $STATUS -eq 2 ]]; then
      printf "\e[34m$SERVER PUPPET ran OK.\e[0m\n"
      printreport $SERVER
    else
      printf "\e[31m$SERVER PUPPET FAILED\e[0m\n"
      printreport $SERVER
      fail=true
    fi
  done

else
  printf "Running heira update script (\e[34m<scriptname>\e[0m) \e[31mFAILED\e[0m\n"
  fail=true
fi

if $fail; then
  exit 1
fi