Bin Li libin0120

BOSH command line interface cheatsheet

Introduction

Bosh is a powerful tool to install and manage your Cloud Virtual Machine workloads (VMs), referred to as “deployments”. You can find docs on //bosh.io/docs. Consider using bosh create-env tool to install to a Cloud of your choice a new Bosh Director.

Bosh uses a CPI (Cloud Provider Interface) to talk to the underlying IaaS/Cloud and manage Cloud workloads, just like a computer uses a driver to talk to a printer. CPIs are very similar to the Infrastructure Cloud Providers later implemented in the ClusterAPI technology, but Bosh abstractions apply to any scope of workloads where ClusterAPI is very restrictive, and Bosh concepts map the problem space better than ClusterAPI, reaching better efficiency in the convergence loop towards the expected (healthy) state of workloads.

Director, Stemcell, Release, Deployment, Instance, are words that have a very specific meaning in Bosh context, so we capitalize them here.

Postgres Cheatsheet

This is a collection of the most common commands I run while administering Postgres databases. The variables shown between the open and closed tags, "<" and ">", should be replaced with a name you choose. Postgres has multiple shortcut functions, starting with a forward slash, "". Any SQL command that is not a shortcut, must end with a semicolon, ";". You can use the keyboard UP and DOWN keys to scroll the history of previous commands you've run.

Setup

installation, Ubuntu

http://www.postgresql.org/download/linux/ubuntu/ https://help.ubuntu.com/community/PostgreSQL

Use these rapid keyboard shortcuts to control the GitHub Atom text editor on macOS.

Key to the Keys

⌘ : Command key
⌃ : Control key
⌫ : Delete key
← : Left arrow key
→ : Right arrow key
↑ : Up arrow key

via (https://www.linux.com/learn/tutorials/442438-vim-tips-folding-fun)

zf#j creates a fold from the cursor down # lines.
zf/string creates a fold from the cursor to string .
zj moves the cursor to the next fold.
zk moves the cursor to the previous fold.
zo opens a fold at the cursor.
zO opens all folds at the cursor.
zm increases the foldlevel by one.
zM closes all open folds.

This list is based on aliases_spec.rb.

You can see also Module: RSpec::Matchers API.

matcher	aliased to	description
a_truthy_value	be_truthy	a truthy value
a_falsey_value	be_falsey	a falsey value
be_falsy	be_falsey	be falsy
a_falsy_value	be_falsey	a falsy value

	"""""""""""""""""""""""""""""""""""""
	" Allan MacGregor Vimrc configuration
	"""""""""""""""""""""""""""""""""""""
	set nocompatible
	syntax on
	set nowrap
	set encoding=utf8

	"""" START Vundle Configuration

	000 Approved
	010 Partially Approved
	100 Processing Network Unavailable
	101 Issuer Unavailable
	102 Re-submit Transaction
	110 Insufficient Funds
	111 Authorization amount has already been depleted
	120 Call Issuer
	121 Call AMEX
	122 Call Diners Club

	<?xml version="1.0" encoding="UTF-8"?>
	<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
	<plist version="1.0">
	<dict>
	<key>Label</key>
	<string>homebrew.mxcl.nginx</string>
	<key>RunAtLoad</key>
	<true/>
	<key>KeepAlive</key>
	<true/>