jonathan-kosgei

I've been an aggressive Kubernetes evangelist over the last few years. It has been the hammer with which I have approached almost all my deployments, and the one tool I have mentioned (shoved down clients throats) in almost all my foremost communications with clients, and it was my go to choice when I was mocking my first startup (saharacluster.com).

A few weeks ago Docker 1.13 was released and I was tasked with replicating a client's Kubernetes deployment on Swarm, more specifically testing running compose on Swarm.

And it was a dream!

All our apps were already dockerised and all I had to do was make a few modificatons to an existing compose file that I had used for testing before prior said deployment on Kubernetes.

And, with the ease with which I was able to expose our endpoints, manage volumes, handle networking, deploy and tear down the setup. I in all honesty see no reason to not use Swarm. Or any mission-critical feature, or incredibly convenient really nice to have feature in Kubernetes that I'm

jonathan-kosgei

# From this askubuntu question http://askubuntu.com/a/604691/280044

ip route get 8.8.8.8 | awk '{print $NF; exit}'

jonathan-kosgei

#!/bin/sh
# Setup Calico for Docker on Ubuntu 16.04

# Change to the internal ip of your node
NODE_IP=ip route get 8.8.8.8 | awk '{print $NF; exit}'

# Install docker
sudo apt-get install -y --no-install-recommends \
    apt-transport-https \
    ca-certificates \

jonathan-kosgei

def max_in_nested_number_list(numbers):
    largest = 0
    for item in numbers:
        if isinstance(item, list):
            numbers.append(max_in_nested_number_list(item))
        else:
            largest = item if item>largest else largest
    return largest

jonathan-kosgei

""" Make sure to create the "backup" tag on the volumes you want to backup.
    For authentication, setup the aws policy and user as specified in the snapshot-trust.json and snapshot-policy.json
    Inspired by: https://serverlesscode.com/post/lambda-schedule-ebs-snapshot-backups/
"""

from time import gmtime, strftime
import boto3

region = "us-west-2"
backup_tag = "backup"

jonathan-kosgei

FROM debian:jessie
MAINTAINER a.mulholland

RUN apt-get update && apt-get upgrade -y &&\
    curl -sS https://dl.yarnpkg.com/debian/pubkey.gpg | apt-key add - &&\
    echo "deb https://dl.yarnpkg.com/debian/ stable main" | tee /etc/apt/sources.list.d/yarn.list &&\
    curl -sL https://deb.nodesource.com/setup_6.x | bash -
    apt-get install -y nodejs yarn nginx php5-fpm php5-mysqlnd php5-curl php5-mcrypt php5-gd git curl mysql-client openssh-client

RUN curl -sS https://getcomposer.org/installer | php -- --install-dir=/usr/local/bin --filename=composer

jonathan-kosgei

{
  "/apis/{fqdn}/v1/{resource}": {
    "get": {
      "security": [
        {
          "Bearer": [

          ]
        }
      ],

jonathan-kosgei

#!/bin/bash

# set variable with base image names
# get base image ids and set in other list
all_images=`mktemp`
base_images=`mktemp`
#base_image_names="alpine linux"
#ids=`docker images --no-trunc -q $(base_image_names)`
bases="sha256:7328f6f8b41890597575cbaadc884e7386ae0acc53b747401ebce5cf0d624560 sha256:33aa78cbda15ae84375c46dfc3fc07560c9af8e7b8f37745d2c6542e2affec9f"
docker images -q --no-trunc > $all_images

jonathan-kosgei

#!/bin/bash

function list_include_item { local list="$1"; local item="$2"; if [[ $list =~ (^|[[:space:]])"$item"($|[[:space:]]) ]] ; then result=0; else result=1; fi; return $result;};
bases="alpine:latest nginx:1.11.3-alpine"
delete=
# append latest tag to each image
for item in $(docker images --format "{{.Repository}}:{{.Tag}}@{{.ID}}")
do
    export IFS=' '
    IFS='@'; arr=($item); unset IFS;

jonathan-kosgei

$script = <<SCRIPT
# Install docker
curl -fsSL get.docker.com | sh
# Install kubectl
curl -LO https://storage.googleapis.com/kubernetes-release/release/$(curl -s https://storage.googleapis.com/kubernetes-release/release/stable.txt)/bin/linux/amd64/kubectl
chmod +x ./kubectl
sudo mv ./kubectl /usr/local/bin/kubectl
# Install kubeadm
cat <<EOF > /etc/yum.repos.d/kubernetes.repo
[kubernetes]