| check process redis-server | |
| with pidfile "/var/run/redis.pid" | |
| start program = "/etc/init.d/redis-server start" | |
| stop program = "/etc/init.d/redis-server stop" | |
| if 2 restarts within 3 cycles then timeout | |
| if totalmem > 100 Mb then alert | |
| if children > 255 for 5 cycles then stop | |
| if cpu usage > 95% for 3 cycles then restart | |
| if failed host 127.0.0.1 port 6379 then restart | |
| if 5 restarts within 5 cycles then timeout |
A quick overview of the node.js streams interface with basic examples.
This is based on @brycebaril's presentation, Node.js Streams2 Demystified
Streams are a first-class construct in Node.js for handling data.
Think of them as as lazy evaluation applied to data.
| #!/usr/bin/env bash | |
| # | |
| # This is to print nice logs | |
| # | |
| # @version : 0.0.1 | |
| # | |
| # | |
| ############################################# | |
| # Environment variables and their defaults |
| #!/usr/bin/env bash | |
| # | |
| # help function | |
| # | |
| # @version : 0.0.1 | |
| # | |
| # | |
| ############################################# | |
| function help () { | |
| echo -e "\033[1m${1}\033[0m" 1>&2 |
| #!/usr/bin/env bash | |
| # This file is to setup nginx for php application | |
| # | |
| # @Version : 0.0.1 | |
| # @Usage : tpl.sh template | |
| # can not be used to render bash script, use sed instead | |
| # | |
| set -o pipefail | |
| set -o errexit | |
| # set -o xtrace |
| #!/usr/bin/env bash | |
| # This file is to setup nginx for php application | |
| # @Version : 0.0.1 | |
| # @Usage : ./setup.sh [appname] [server_name] [port] [fpm_port] | |
| # @Example : ./setup.sh oa_attr attr.meikecheng.com 80 9023 | |
| # | |
| set -o pipefail | |
| set -o errexit | |
| # set -o xtrace |
| # check whether git is installed | |
| command -v git >/dev/null 2>&1 || { echo >&2 "git is required but it's not installed. Aborting."; exit 1; } | |
| # check node | |
| check_node=$(which node); | |
| if [[ -z $check_node ]]; | |
| then | |
| # install_node | |
| else | |
| echo 'Node Already Installed'; |
| #!/usr/bin/env bash | |
| # | |
| # @version : 0.0.1 | |
| # | |
| ##################### | |
| # Global Configuration | |
| set -o pipefail | |
| set -o errexit |
| #!/bin/bash | |
| aflag=no | |
| bflag=no | |
| flist="" | |
| set -- $(getopt abf "$@") | |
| while [ $# -gt 0 ] | |
| do | |
| case "$1" in | |
| -a) echo 1;; | |
| -b) echo 2;; |
| #!/bin/bash | |
| # from http://unix.stackexchange.com/questions/18209/detect-init-system-using-the-shell | |
| if [[ `/sbin/init --version` =~ upstart ]]; then echo using upstart; | |
| elif [[ `systemctl` =~ -\.mount ]]; then echo using systemd; | |
| elif [[ -f /etc/init.d/cron && ! -h /etc/init.d/cron ]]; then echo using sysv-init; | |
| else echo cannot tell; fi |