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Each of these commands will run an ad hoc http static server in your current (or specified) directory, available at http://localhost:8000. Use this power wisely.

Discussion on reddit.

Python 2.x

$ python -m SimpleHTTPServer 8000

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Introduction to Kafka

Kafka acts as a kind of write-ahead log (WAL) that records messages to a persistent store (disk) and allows subscribers to read and apply these changes to their own stores in a system appropriate time-frame.

Terminology:

• Producers send messages to brokers
• Consumers read messages from brokers
• Messages are sent to a topic

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K3D Workshop

App Case-Study

A "simple" distributed app today.

• HTTP Rest API
• Task Workers (Queue consumers) and Crons (Periodic jobs)
• Web client
• Android / iOS client

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# -*- mode: ruby -*-
# vi: set ft=ruby ts=2 sw=2 expandtab:

Vagrant.configure(2) do |config|
  config.vm.box = "ubuntu/trusty64"
  config.vm.network "private_network", ip: "192.168.33.10"
  config.vm.provision "shell", inline: <<-SHELL
    echo 'deb http://www.rabbitmq.com/debian/ testing main' >/etc/apt/sources.list.d/rabbitmq.list
    wget http://www.rabbitmq.com/rabbitmq-signing-key-public.asc
    apt-key add rabbitmq-signing-key-public.asc

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apiVersion: v1
kind: ConfigMap
metadata:
  name: rabbitmq-config
  namespace: default
data:
  enabled_plugins: |
      [
        rabbitmq_management,  
        rabbitmq_peer_discovery_k8s,

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#!/bin/sh
#
# This script deploys the given manifest,
# tracks the deployment, and rolls back on failure.
#
# First execute this with "myapp.yaml" and then try it with "myapp.failing.yaml"
#

MANIFEST_PATH=$1
DEPLOYMENT_NAME=myapp

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# -*- mode: ruby -*-
# vi: set ft=ruby :

# Vagrantfile API/syntax version. Don't touch unless you know what you're doing!
VAGRANTFILE_API_VERSION = "2"

Vagrant.configure(VAGRANTFILE_API_VERSION) do |config|
  # All Vagrant configuration is done here. The most common configuration
  # options are documented and commented below. For a complete reference,
  # please see the online documentation at vagrantup.com.

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Vagrant Gitlab Server

Quickly set up a local Gitlab CE server using Vagrant.

Run vagrant up to setup the virtual server.

Server Details

• Ubuntu 16.04
• Installs latest Docker

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Git/Github step-by-step Workflow

Step-by-step guide for creating a feature or bugfix branch, submit it for code review as a pull request and once approved, merge upstream. This guide is intended for internal developers with push access to all relevant repos.

You should understand rebasing and squashing. For a very good explanation on rebasing and squashing with pull requests see How to Rebase a Pull Request. Also worth reading is the Hacker's Guide to Git.

Setup

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variables:
    GIT_SSL_NO_VERIFY: "true"
    GIT_DEPTH: "3"
    GET_SOURCES_ATTEMPTS: "3"
    ARTIFACT_DOWNLOAD_ATTEMPTS: "2"
    GIT_SUBMODULE_STRATEGY: "recursive"
    GIT_STRATEGY: "fetch"
    GIT_CHECKOUT: "false"
    CMAKE_BUILD_TYPE: "Release"
    BUILD_DIRECTORY: "build-$CI_PROJECT_NAME"