mackerel ssh

mssh.sh

#!/bin/sh

HOSTS_FILE="${HOME}/.hosts"
CACHE_TIME="5"
ROLES_SELECT="false"

print_help() {
  cat <<-EOF >> /dev/stdout
        mackerel ssh command

        Depends:
                 mkr
                 peco (https://github.com/peco/peco)

        Usage: $0 [-r]

        Options:
                 -r                             Enable Select Mackerle Role
                 -h                             print this message and exit

        EOF
}

old_cache(){
  [ "$(find "${HOSTS_FILE}" -mmin -${CACHE_TIME} | wc -l)" -eq 0 ]
}

select_role(){
        ROLE_NAME=$(cat ${HOSTS_FILE} | jq -r '.roles[]' 2>/dev/null | sort | uniq | peco)
}

while getopts "rh" opt; do
  case ${opt} in
      r ) ROLES_SELECT="true" ;;
      h ) print_help; exit ;;
      * ) print_help; exit 1 ;;
  esac
done
shift  $((OPTIND - 1))

if old_cache; then
        echo 'update cache'
        mkr hosts | jq -r '.[] | {"name": .name, "roles": .roleFullnames, "ip": .ipAddresses.eth0}' > ${HOSTS_FILE}
fi

if [ ${ROLES_SELECT} = "true" ]; then
        select_role
        HOST_NAME=$(cat ${HOSTS_FILE} | jq -r '. | select(.roles[] =="'${ROLE_NAME}'") | .name' 2>/dev/null | peco)
else
        HOST_NAME=$(cat ${HOSTS_FILE} | jq -r '.name' | peco)
fi

IP=$(cat ${HOSTS_FILE} | jq -r '. | select(.name == "'${HOST_NAME}'") | .ip')

echo ${ROLE_NAME}
ssh ${IP}