Konpat phizaz

Module autoreload

To auto-reload modules in jupyter notebook (so that changes in files *.py doesn't require manual reloading):

# for auto-reloading external modules
# see http://stackoverflow.com/questions/1907993/autoreload-of-modules-in-ipython
%load_ext autoreload
%autoreload 2

Set up a ssh tunnel only user

In order to give someone access to hosts that are available only by ssh "bouncing" (ProxyJump), add a user for this specific purpose.

We have an internal openstack where instances get IPs on per-tenant networks. Each tenant has a 'bastion' host that has a "public" ip (floating ip). You can access other instances by bouncing through the bastion. From time to time I want to let someone else into an instance. This could be done either with:

a.) just give them shell access to the bastion and let them hop through. Sharing an unrestricted shell account on my bastion is less than ideal. b.) assign a floating/"public" IP to the instance so they could go directly in. Floating IPs are limited, so this is less than ideal.

So instead, I have set up a single user as described here that can only be used for ProxyJump. It allows others proxied access to my instances but without granting them full shell access.

Getting Setup: Follow the instruction on https://gym.openai.com/docs

git clone https://github.com/openai/gym
cd gym
pip install -e . # minimal install

Basic Example using CartPole-v0:

	#!/bin/bash

	### steps ####
	# Verify the system has a cuda-capable gpu
	# Download and install the nvidia cuda toolkit and cudnn
	# Setup environmental variables
	# Verify the installation
	###

	### to verify your gpu is cuda enable check

	\documentclass[a4paper,10pt]{article}

	% make writing commands easier
	\usepackage{xparse}

	% colored text
	\usepackage{color}

	% include eps, pdf graphics
	\usepackage{graphicx}

	# Install x-related to compile x11vnc from source code.
	sudo apt-get update
	sudo apt-get install -y libxtst-dev libssl-dev libjpeg-dev

	# Grep source code.
	wget http://x11vnc.sourceforge.net/dev/x11vnc-0.9.14-dev.tar.gz
	gzip -dc x11vnc-0.9.14-dev.tar.gz \| tar -xvf -
	cd x11vnc-0.9.14/
	./configure --prefix=/usr/local CFLAGS='-g -O2 -fno-stack-protector -Wall'

	#!/bin/bash

	# cool_gpu2.sh This script will enable or disable fixed gpu fan speed
	#
	# Description: A script to control GPU fan speed on headless (non-X) linux nodes

	# Original Script by Axel Kohlmeyer <[email protected]>
	# https://sites.google.com/site/akohlmey/random-hacks/nvidia-gpu-coolness
	#
	# Modified for newer drivers and removed old work-arounds

	#!/usr/bin/env python

	# File: log_exec.py
	# Author: McKay Davis
	# Date: Jun 23, 2014
	# Non-blocking stdout and stderr read from a
	# Popen process

	import os
	import subprocess

	# Even better

	def lazy_property(fn):
	'''Decorator that makes a property lazy-evaluated.
	'''
	attr_name = '_lazy_' + fn.__name__

	@property
	def _lazy_property(self):
	if not hasattr(self, attr_name):

	; Autohotkey Capslock Remapping Script
	; Danik
	; More info at http://danikgames.com/blog/?p=714
	; danikgames.com
	;
	; Functionality:
	; - Deactivates capslock for normal (accidental) use.
	; - Hold Capslock and drag anywhere in a window to move it (not just the title bar).
	; - Access the following functions when pressing Capslock:
	; Cursor keys - J, K, L, I