knife command parallel exec in hosts

knife_base.bash

#!/bin/bash

SH_KNIFE="/usr/local/chef/chef-repo/knife_parallel.bash"
LOG_FILE="/usr/local/chef/chef-repo/knife_base.log"

func_usage() {
  echo "Usage: `basename $0` {bootstrap|prepare|cook}"
  return 0
}

if [ $# -lt 1 ]; then
  func_usage
  exit 1
fi

case $1 in
  bootstrap)
    COMMAND="bootstrap"
    ;;
  cook)
    COMMAND="cook"
    ;;
  prepare)
    COMMAND="prepare"
    ;;
  *)
    func_usage
    exit 2
    ;;
esac

ROLES=("web" "db" "adm" "bat" "mng")
for role in ${ROLES[@]}; do
    echo "### `date +'%Y/%m/%d %H:%M:%S'`[START]: ROLE is ${role}" | tee -a ${LOG_FILE}
    ${SH_KNIFE} ${COMMAND} ${role}
    ret=$?
    if [ ${ret} -ne 0 ]; then
      echo "### `date +'%Y/%m/%d %H:%M:%S'`[ERROR]: ROLE is ${role}, loopup ${LOGFILE}" | tee -a ${LOG_FILE}
    fi
done

echo "### `date +'%Y/%m/%d %H:%M:%S'`[END]" >> ${LOG_FILE}

exit 0

knife_parallel.bash

#!/bin/bash

func_usage() {
  echo "Usage: `basename $0` {bootstrap|prepare|cook} {role}"
  return 0
}

if [ $# -lt 2 ]; then
  func_usage
  exit 1
fi

case $1 in
  bootstrap)
    COMMAND="bootstrap"
    ;;
  cook)
    COMMAND="cook"
    ;;
  prepare)
    COMMAND="prepare"
    ;;
  *)
    func_usage
    exit 2
    ;;
esac

ROLE="$2"

cat /etc/hosts | grep ${ROLE} | grep -v "127.0.0.1" | grep -v ^$ | awk '{print $NF}' |
  parallel -k -j+0 "knife solo ${COMMAND} {} -c ~/.chef/knife.rb -r \""role[${ROLE}]\"""