Microsoft Developer Conference A Container Journey

David Tesar Senior Technical Evangelist@dtzar

March, 2017 | Cairo, Egypt

Extreme Sport Christians – Monolith Architecture (on PaaS)

SQL Azure

Microsoft Azure

Azure App Services WebsiteApp Insights

Internet

.NET 4.6 front-end code with tight-couplingto out of box InstantForum product

The Monolithic Application

Pros

Simple at firstIn-process latenciesSingle codebase, deploy unitResource-efficient at small scale

Cons

Complex to understandDifficult to TestCoordination overhead as team growsDevOps Practices harder to implementPoor scaling (vertical only)All-or-nothing deploy (downtime, failures)Long build timesLonger / Harder to update

Microservices Design Pattern

A

C D EBC

BA E

F

GD

Microservices

API-Auth

API-User

API-Comms

API-Tags

Action Sports Community - Architecture

DocDB

Mobile Apps React.JS / Cordova iOS/Android/Windows

User CollectionComms CollectionAuth CollectionTags Collection

Node.JSExpressSwagger

Microsoft Azure

React.JS Website

APIGatewa

y

Internet

Microservices on top ACS+K8s

MongoContain

er

MongoContain

er

Container

ContainersHow do they differ from virtual machines?Dependencies: Each virtualized app includes the app itself, required binaries and libraries and a guest OS, which may consist of multiple GB of dataIndependent OS: Each VM can have a different OS from other VMs, along with a different OS to the host itselfFlexible: VMs can be migrated to other hosts to balance resource usage and for host maintenance without downtime

Secure: High levels of resource and security isolation for key virtualized workloads

App A

Host OSw/Container

support

Server / Hypervisor

Bins/libraries

Container

Bins/libraries

App B

Virtual Machine

Host OSw/Container

support

SemanticsWhat’s the difference between a Docker File, Image and Container?

Docker File: Defines source image and commands to execute to build a Docker ImageCreates image to build… ‘docker build’

Docker Image: Images are stored in a registry and are a immutable copy of the applicationCreates instance of image… ‘docker run’

Docker Container: This is the running instance of a Docker Image

Lists running instances… ‘docker ps’

Demo

Docker Fundamentals withAction Sports Community Front-End React.JS & API-Comms Microservice

React.JS Website

API-Comms

DevOps Practices with VSTS + Azure

Local Dev

Source Repo

Build Docker Image

Azure Container Registry (ACR)

Microsoft Azure

Master Node1 Node2

VSTS

Docker-Compose up

CI

Demo

Sharing Docker Images via Azure Container Registry

Docker Compose

React.JS Website

“Continuous automatedscheduling, coordination, andmanagement of complex systemsof containerized components andthe resources they consume.”@karlkfi

Application

Infrastructure

Azure Container Service

ARM Templat

e

Orchestrator

DemoDeploying an ACS Cluster with Kubernetes OrchestratorUsing AZ cli script

Create Cluster

Master Node1 Node2

App Marketplaces

http://kubeapps.com http://mesosphere.github.io/universe/

DevOps Practices with VSTS + Azure

Local Dev

Source Repo

Build Docker Image

Azure Container Registry (ACR)

Microsoft Azure

Master Node1 Node2ACS / K8s Cluster

Deploy to Cluster(Stage)

Deploy to Cluster(Prod)

Automated Tests

VSTS

Docker-Compose up

CI

CD RM

DemoDeployment Using Helm to ACS+K8s Cluster

Continuous Delivery to ACS+K8s with VSTS

Resources• DevOps Fundamental Video Series

http://aka.ms/DevOpsFundamentals • Continuous Delivery to ACS+K8s with VSTS

http://wp.me/p355zy-6h• MVA Courses on Microservices

https://mva.microsoft.com/search/SearchResults.aspx#!q=microservice&lang=1033

• VSTS Kubernetes Taskhttps://github.com/TsuyoshiUshio/KubernetesTask

• ACS – Kubernetes Walkthroughhttps://docs.microsoft.com/en-us/azure/container-service/container-service-kubernetes-walkthrough

• ACS – DCOS CI/CD https://docs.microsoft.com/en-us/azure/container-service/container-service-setup-ci-cd

• Microsoft DevOps Case Studieshttps://microsoft.github.io/techcasestudies/

© 2012 Microsoft Corporation. All rights reserved. Microsoft, Windows, Windows Vista and other product names are or may be registered trademarks and/or trademarks in the U.S. and/or other countries.The information herein is for informational purposes only and represents the current view of Microsoft Corporation as of the date of this presentation. Because Microsoft must respond to changing market conditions, it should not be interpreted to be a commitment on the part of Microsoft, and Microsoft cannot guarantee the accuracy of any information provided after the date of this presentation. MICROSOFT MAKES NO WARRANTIES, EXPRESS, IMPLIED OR STATUTORY, AS TO THE INFORMATION IN THIS PRESENTATION.