George Masgras gmas

Core ideas

An Object is a set of instance variables and a pointer to a 'singleton class'.
Properties are looked up in the instance variables, methods are dispatched via the singleton class.
Module is a subtype of Object. A Module is a set of methods and an ordered list of zero-or-more 'parent' modules.
Module A becomes a parent of module B via B.include(A).
Method lookup works by doing a depth-first right-to-left search of a module tree.
Class is a subtype of Module. A Class is a Module that can be instantiated.
A Class has only one 'superclass'. A class includes its superclass as its first parent module for the purposes of method dispatch. A class's singleton class includes the superclass's singleton class as its first parent.
The default superclass of all classes is Object.

kops cluster config

kubeAPIServer:
  authorizationMode: RBAC
  authorizationRbacSuperUser: admin
  oidcCAFile: /srv/kubernetes/ca.crt
  oidcClientID: example
  oidcGroupsClaim: groups
  oidcIssuerURL: https://dex.example.com
  oidcUsernameClaim: email

The prep-script.sh will setup the latest Node and install the latest perf version on your Linux box.

When you want to generate the flame graph, run the following (folder locations taken from install script):

sudo sysctl kernel.kptr_restrict=0
# May also have to do the following:
# (additional reading http://unix.stackexchange.com/questions/14227/do-i-need-root-admin-permissions-to-run-userspace-perf-tool-perf-events-ar )
sudo sysctl kernel.perf_event_paranoid=0

	ssh-copy-id [email protected]

	# on the pi
	sudo su -
	cat <<EOF >> /etc/wpa_supplicant/wpa_supplicant.conf
	network={
	ssid="Your SSID Here"
	proto=RSN
	key_mgmt=WPA-PSK
	pairwise=CCMP

	#Maintainer: Iwan Timmer <[email protected]>
	Contributor: Anish Bhatt <[email protected]>

	pkgname=kubernetes
	pkgver=1.0.7
	pkgrel=1
	pkgdesc="Container Cluster Manager for Docker"
	depends=('glibc')
	makedepends=('go' 'rsync')
	optdepends=('etcd: etcd cluster required to run Kubernetes')

	---
	# ^^^ YAML documents must begin with the document separator "---"
	#
	#### Example docblock, I like to put a descriptive comment at the top of my
	#### playbooks.
	#
	# Overview: Playbook to bootstrap a new host for configuration management.
	# Applies to: production
	# Description:
	# Ensures that a host is configured for management with Ansible.

	# Install ARCH Linux with encrypted file-system and UEFI
	# The official installation guide (https://wiki.archlinux.org/index.php/Installation_Guide) contains a more verbose description.

	# Download the archiso image from https://www.archlinux.org/
	# Copy to a usb-drive
	dd if=archlinux.img of=/dev/sdX bs=16M && sync # on linux

	# Boot from the usb. If the usb fails to boot, make sure that secure boot is disabled in the BIOS configuration.

	# Set swedish keymap

	Type: AWS::IAM::ManagedPolicy
	Properties:
	Description: AWS Policy for EC2 Instance, EBS Creation with Tagging required
	PolicyDocument:
	Version: "2012-10-17"
	Statement:
	# This allows the untaggable calls to work when RunInstances is the actor
	-
	Effect: Allow
	Action: