Armando aalvesjr

English

Technical (Programming, IT, etc)

Setting up and installing rbenv, ruby-build, rubies, rbenv-gemset, and bundler

This guide enables you to install (ruby-build) and use (rbenv) multiple versions of ruby, isolate project gems (gemsets and/or bundler), and automatically use appropriate combinations of rubies and gems.

TL;DR Demo

# Ensure system is in ship-shape.

aptitude install git zsh libssl-dev zlib1g-dev libreadline-dev libyaml-dev

	1 hostname elliot-01
	2 echo elliot-01 > /etc/hostname
	3 bash
	4 vim /etc/modules-load.d/k8s.conf
	5 curl -fsSL https://get.docker.com \| bash
	6 docker version
	7 docker ps
	8 apt-get update && apt-get install -y apt-transport-https
	9 curl -s https://packages.cloud.google.com/apt/doc/apt-key.gpg \| apt-key add -
	10 echo "deb http://apt.kubernetes.io/ kubernetes-xenial main" > /etc/apt/sources.list.d/kubernetes.list

	-- show running queries (pre 9.2)
	SELECT procpid, age(clock_timestamp(), query_start), usename, current_query
	FROM pg_stat_activity
	WHERE current_query != '<IDLE>' AND current_query NOT ILIKE '%pg_stat_activity%'
	ORDER BY query_start desc;

	-- show running queries (9.2)
	SELECT pid, age(clock_timestamp(), query_start), usename, query
	FROM pg_stat_activity
	WHERE query != '<IDLE>' AND query NOT ILIKE '%pg_stat_activity%'