jonatw’s gists

jonatw / linit7688_sdcard_rootfs.sh

Last active May 18, 2017 14:29

LinkIt7688 use sdcard as rootfs after factory reset ref: http://labs.mediatek.com/forums/posts/list/3619.page

	#!/bin/ash
	# ref http://labs.mediatek.com/forums/posts/list/3619.page
	opkg update
	opkg install block-mount kmod-fs-ext4 kmod-usb-storage-extras e2fsprogs
	umount /tmp/run/mountd/mmcblk0p1
	mkfs.ext4 -F /dev/mmcblk0p1
	mount /dev/mmcblk0p1 /mnt
	tar -C /overlay -cvf - . \| tar -C /mnt -xf -
	umount /dev/mmcblk0p1
	block detect > /etc/config/fstab

jonatw / cw_put_metric_install.sh

Last active August 29, 2015 14:03

	wget -O /opt/cw.zip http://ec2-downloads.s3.amazonaws.com/cloudwatch-samples/CloudWatchMonitoringScripts-v1.1.0.zip
	unzip /opt/cw.zip -d /opt/
	rm -f /opt/cw.zip

	yum install -y openssl openssl-devel perl-ExtUtils-MakeMaker
	curl -L http://cpanmin.us \| perl - --self-upgrade
	cpanm Digest::SHA Bundle::LWP5_837 LWP LWP::Protocol::https

	IAM_ROLE=`curl http://169.254.169.254/latest/meta-data/iam/security-credentials/`
	DISK_PARAM=`mount \|grep -E '[s\|xv]d\|mapper' \| awk '{print "--disk-path="$3}' \| tr '\n' ' '`

jonatw / shippable.yml

Created June 21, 2014 20:16

	# {Rails.root}/shippable.yml
	# shippleable example for rails 4 with mysql
	language: ruby

	rvm:
	- 2.0.0

	env:
	- CI_REPORTS=shippable/testresults COVERAGE_REPORTS=shippable/codecoverage

jonatw / aws_cloudwatch_gpu_metrics.sh

Last active June 18, 2018 14:31

	#!/bin/bash
	# please install aws-cli first
	# easy_install pip
	# pip install awscli

	# project parameters
	PROJECT_NAME='SomeCoolPropject'
	SAMPLE_COUNT=20;
	INTERVAL=0.5;

jonatw / nvidia_gpu_top.sh

Created March 3, 2014 10:27

home-made GPU top using nvidia-smi

	#!/bin/bash

	SAMPLE_COUNT=20;
	INTERVAL=0.5;
	for (( c=1; c<=$SAMPLE_COUNT; c++ )); do nvidia-smi --query-gpu=utilization.gpu,utilization.memory --format=csv,noheader,nounits >> /tmp/GPU_$TIMESTAMP; sleep $INTERVAL; done;

	GPU_USG_SUM=`cat /tmp/GPU_$TIMESTAMP \| sed 's/, / /g' \| awk '{sum+=$1}END{print sum}'`
	GPU_USG_MIN=`cat /tmp/GPU_$TIMESTAMP \| sed 's/, / /g' \|cut -d ' ' -f 1 \| sort \| head -n 1`
	GPU_USG_MAX=`cat /tmp/GPU_$TIMESTAMP \| sed 's/, / /g' \|cut -d ' ' -f 1 \| sort \| tail -n 1`

jonatw / get_ec2_iam_role_credentials.sh

Last active August 29, 2015 13:56

this script allows ec2 instances to obtain iam role security credentials by query instance meta-data api

	#!/bin/bash
	function get_iam_role_credentials(){
	BASE_URL='http://169.254.169.254/latest/meta-data/'
	export AWS_DEFAULT_REGION=`curl -s $BASE_URL/placement/availability-zone \| sed -e 's:$[0-9][0-9]$[a-z]\$:\\1:'`
	export AWS_ROLE_NAME=`curl -s $BASE_URL/iam/security-credentials/`
	export AWS_ACCESS_KEY_ID=`curl -s $BASE_URL/iam/security-credentials/$ROLE_NAME \| grep AccessKeyId \| awk '{print $3}' \| cut -d '"' -f 2`
	export AWS_SECRET_ACCESS_KEY=`curl -s $BASE_URL/iam/security-credentials/$ROLE_NAME \| grep SecretAccessKey \| awk '{print $3}' \| cut -d '"' -f 2`
	export AWS_SECURITY_TOKEN=`curl -s $BASE_URL/iam/security-credentials/$ROLE_NAME \| grep Token \| awk '{print $3}' \| cut -d '"' -f 2`
	}

jonatw / chef-client

Created December 5, 2013 08:07 — forked from jrudolph/chef-client

	#! /bin/sh
	### BEGIN INIT INFO
	# Provides: chef-client
	# Required-Start: $remote_fs $syslog
	# Required-Stop: $remote_fs $syslog
	# Default-Start: 2 3 4 5
	# Default-Stop: 0 1 6
	# Short-Description: Initscript to run chef-client daemon
	# Description: Starts the chef-client daemon automatically upon start
	### END INIT INFO

jonatw / chef_solo_bootstrap.sh

Created September 23, 2013 09:50 — forked from kaichen/chef_solo_bootstrap.sh

	#!/usr/bin/env bash

	apt-get -y update
	apt-get -y install build-essential zlib1g-dev libssl-dev libreadline5-dev libyaml-dev
	cd /tmp
	wget http://ruby.taobao.org/mirrors/ruby/1.9/ruby-1.9.3-p194.tar.gz
	tar -xvzf ruby-1.9.3-p194.tar.gz
	cd ruby-1.9.3-p194/
	./configure --prefix=/usr/local --disable-install-rdoc
	make

jonatw / bootstrap-chef-solo.sh

Created July 3, 2013 11:07 — forked from gogojimmy/bootstrap-chef-solo.sh

	#!/usr/bin/env bash

	# Pre-requisites
	sudo apt-get -y update
	sudo apt-get --no-install-recommends -y install build-essential openssl libreadline6 libreadline6-dev curl git-core zlib1g zlib1g-dev libssl-dev libyaml-dev libsqlite3-dev sqlite3 libxml2-dev libxslt-dev autoconf libc6-dev libgdbm-dev ncurses-dev automake libtool bison subversion pkg-config libffi-dev vim

	# Download and compile Ruby 2.0.0-p0
	cd /tmp
	wget ftp://ftp.ruby-lang.org/pub/ruby/2.0/ruby-2.0.0-p0.tar.gz
	tar -xvzf ruby-2.0.0-p0.tar.gz

jonatw / cloudwatch_nginx_connections.sh

Last active December 18, 2015 19:00

	AWS_ACCESS_KEY_ID="YOURAWSACCESSKEYID"
	AWS_SECRET_KEY="YOURAWSSECRETKEY"
	EC2_REGION=$(wget -q -O - http://169.254.169.254/latest/dynamic/instance-identity/document \| grep region \| awk -F\" '{print $4}')
	EC2_INSTANCE_ID=$(wget -q -O - http://169.254.169.254/latest/meta-data/instance-id)
	EC2_CLOUDWATCH_NAMESPACE='WebService'
	NGINX_CONNECTIONS=$(wget -q -O - http://127.0.0.1/nginx_status \| grep 'connections' \| awk '{print $3}')
	/usr/bin/mon-put-data --region \"$EC2_REGION\" --metric-name HttpConnections --namespace \"$EC2_CLOUDWATCH_NAMESPACE\" --dimensions \"InstanceId=$EC2_INSTANCE_ID\" --value \"$NGINX_CONNECTIONS\" -I \"$AWS_ACCESS_KEY_ID\" -S \"$AWS_SECRET_KEY\"

Jonathan Huang jonatw