negz

apiVersion: apiextensions.crossplane.io/v1alpha1
kind: FunctionIO
# Optional arbitrary KRM-like resource. Each function in a pipeline will be
# called with its own function config (i.e. config is not pipelined).
config:
  apiVersion: database.example.org/v1alpha1
  kind: Config
  metadata:
    name: cloudsql
  spec:

jpoley

mkdir cncf
cd cncf
git clone https://github.com/kubernetes/kubernetes.git
git clone https://github.com/envoyproxy/envoy.git
git clone https://github.com/prometheus/prometheus.git
git clone https://github.com/linkerd/linkerd2-proxy.git
git clone https://github.com/linkerd/linkerd2.git
git clone https://github.com/linkerd/linkerd2-proxy-api.git
git clone https://github.com/grpc/grpc-go.git
git clone https://github.com/grpc/grpc-java.git

ygrenzinger

Summary of book "Clean Architecture" by Robert C. Martin

Uncle Bob, the well known author of Clean Code, is coming back to us with a new book called Clean Architecture which wants to take a larger view on how to create software.

Even if Clean Code is one of the major book around OOP and code design (mainly by presenting the SOLID principles), I was not totally impressed by the book.

Clean Architecture leaves me with the same feeling, even if it's pushing the development world to do better, has some good stories and present robust principles to build software.

The book is build around 34 chapters organised in chapters.

garystafford

// Simple HTTP server that returns random HTTP status code, written in Go.
// Author: Gary A. Stafford <garystafford@rochester.rr.com>
// Created: 11/04/2016

package main

import (
	"io"
	"math/rand"
	"net/http"

renshuki

Install Terminator (shell)

sudo add-apt-repository ppa:gnome-terminator
sudo apt-get update
sudo apt-get install terminator

Terminator should be setup as default now. Restart your terminal (shortcut: "Ctrl+Alt+T").

Install ZSH

ryan0x44

A quick note on how I'm currently handling Blue/Green or A/B deployments with Terraform and AWS EC2 Auto Scaling.

In my particular use case, I want to be able to inspect an AMI deployment manually before disabling the previous deployment.

Hopefully someone finds this useful, and if you have and feedback please leave a comment or email me.

Overview

I build my AMI's using Packer and Ansible.

jkeefe

BLUETOOTH SNIFFER

Working to sniff Bluetooth Low Energy with the adafruit sniffer

For more information, see this blog post

Going the python route, as described here

before installing pySerial, did ...

adulau

How to acquire memory from a running Linux system

Dumping memory on Linux system can be cumbersome especially that the behavior might be different among different GNU/Linux distribution or Linux kernel version. In the early days, the easiest was to dump the memory from the memory device (/dev/mem) but over time the access was more and more restricted in order to avoid malicious process to directly access the kernel memory directly. The kernel option CONFIG_STRICT_DEVMEM was introduced in kernel version 2.6 and upper (2.6.36–2.6.39, 3.0–3.8, 3.8+HEAD). So you'll need to use a Linux kernel module in order to acquire memory.

fmem

jboner

Latency Comparison Numbers (~2012)
----------------------------------
L1 cache reference                           0.5 ns
Branch mispredict                            5   ns
L2 cache reference                           7   ns                      14x L1 cache
Mutex lock/unlock                           25   ns
Main memory reference                      100   ns                      20x L2 cache, 200x L1 cache
Compress 1K bytes with Zippy             3,000   ns        3 us
Send 1K bytes over 1 Gbps network       10,000   ns       10 us
Read 4K randomly from SSD*             150,000   ns      150 us          ~1GB/sec SSD

steder

#!/usr/bin/env python
"""
Recipe for creating and updating security groups programmatically.


"""

import collections

import boto