Anil Shrish anilshrish

Kubernetes cheatsheet

start new:

tmux

start new with session name:

tmux new -s myname

Glossary:

command	description
`cat /proc/mdstat`	show status of all raids
`mdadm --detail /dev/md0`	detailed status of raid md0

Typing vagrant from the command line will display a list of all available commands.

Be sure that you are in the same directory as the Vagrantfile when running these commands!

vagrant init -- Initialize Vagrant with a Vagrantfile and ./.vagrant directory, using no specified base image. Before you can do vagrant up, you'll need to specify a base image in the Vagrantfile.
vagrant init <boxpath> -- Initialize Vagrant with a specific box. To find a box, go to the public Vagrant box catalog. When you find one you like, just replace it's name with boxpath. For example, vagrant init ubuntu/trusty64.

vagrant up -- starts vagrant environment (also provisions only on the FIRST vagrant up)

vi /etc/hosts
192.168.10.157  rabbitmq-1
192.168.10.159  rabbitmq-2
192.168.10.161  rabbitmq-3

	/==== The VPC ======/
	resource "aws_vpc" "vpc" {
	cidr_block = "${var.vpc_cidr}"
	enable_dns_hostnames = true
	enable_dns_support = true
	tags = {
	Name = "${var.environment}-vpc"
	Environment = "${var.environment}"
	}
	}

	#!/bin/sh
	# =============================================================================
	# Author: Chu-Siang Lai / chusiang (at) drx.tw
	# Filename: teams-chat-post.sh
	# Modified: 2018-03-28 15:04
	# Description: Post a message to Microsoft Teams.
	# Reference:
	#
	# - https://gist.github.com/chusiang/895f6406fbf9285c58ad0a3ace13d025
	#

	from functools import wraps
	import time
	import logging
	import random

	logger = logging.getLogger(__name__)


	def retry(exceptions, total_tries=4, initial_wait=0.5, backoff_factor=2, logger=None):
	"""

	$ sudo service docker stop
	$ gksudo gedit /etc/default/docker

	# Use DOCKER_OPTS to modify the daemon startup options.
	DOCKER_OPTS="--dns 8.8.8.8 --dns 8.8.4.4 -g /home/jokla/docker/docker/"


	$ sudo service docker start

	UBUNTU 16.04

	#!/bin/bash

	version="${VERSION:-0.14.0}"
	arch="${ARCH:-linux-amd64}"
	bin_dir="${BIN_DIR:-/usr/local/bin}"

	wget "https://github.com/prometheus/node_exporter/releases/download/v$version/node_exporter-$version.$arch.tar.gz" \
	-O /tmp/node_exporter.tar.gz

	mkdir -p /tmp/node_exporter