Michael Hausenblas mhausenblas

Demo

Create a DCOS CE cluster
dcos package install kubernetes takes 1-2 min until UI is available
Install kubectl as per the docs
Set up K8S: export KUBERNETES_MASTER=$FQHN_OF_DASHBOARD/service/kubernetes/api

    $ dcos package list
 $ dcos marathon app add marathon-gen.json

That's our RC:

$ cat ws-rc.yaml
apiVersion: v1
kind: ReplicationController
metadata:
  name: webserver-rc
spec:
  replicas: 5

selector:

Ramp up CCM/Pool cluster 1.6.1 (EA at time of writing) using Kafka 0.9.0

Install Kafka and launch broker:

$ dcos package install kafka
$ dcos kafka broker add 0
$ dcos kafka broker start 0
broker started:
  id: 0

active: true

Go to the public agent and add a Inbound security rule in the network security group tab with * (or port range)
Go to the load balancer and add a Health probe rule per app/service
Also add a load balancing rule (using above probe) per app/service

	import sys
	import urlparse
	import BaseHTTPServer
	import redis

	r = redis.StrictRedis(host='10.141.141.10', port=31000, db=0)

	class WebApp(BaseHTTPServer.BaseHTTPRequestHandler):

	def do_GET(self):

	#!/bin/sh

	bg_port=$(dig _buzzgen-dployex._tcp.marathon.mesos SRV \| grep ^_buzzgen-dployex._tcp.marathon.mesos. \| cut -d " " -f 6)
	bg_addsec=$(dig _buzzgen-dployex._tcp.marathon.mesos SRV \| grep ^_buzzgen-dployex._tcp.marathon.mesos. \| cut -d " " -f 7)
	bg_ip=$(dig _buzzgen-dployex._tcp.marathon.mesos SRV \| grep ^"${bg_addsec}" \| cut -d " " -f 5)

	for i in $(seq 1 50) ; do
	curl -s "$bg_ip":"$bg_port" \| cut -d " " -f $(( 1 + RANDOM % 7 )) >>index.html
	done

	{
	"id": "wordpress",
	"container": {
	"type": "DOCKER",
	"docker": {
	"image": "tutum/wordpress:latest",
	"network": "BRIDGE",
	"portMappings": [
	{
	"containerPort": 80,

	{
	"id": "cockroachdb",
	"instances": 1,
	"cpus": 1,
	"mem": 300,
	"cmd": "./cockroach start --insecure --host=0.0.0.0 --logtostderr",
	"container": {
	"type": "DOCKER",
	"docker": {
	"image": "cockroachdb/cockroach:beta-20160512",

	#!/bin/bash
	while [ true ] ; do echo 'Hello Marathon' ; sleep 5 ; done