Docker All The Things - ASP.NET 4.x and Windows Server Containers

@nthonyChu#SeattleCodeCamp #DockerAllTheThings

Dockerizing ASP.NET 4.x AppsAnthony Chu


Containers

Docker

Windows Server Containers

Dockerizing ASP.NET

Hyper-V Containers, Windows 10


Who's Anthony?

Developer from Vancouver, BC

Experimenting with Docker on Windows

Microsoft MVP - Azure


Typical Development Process

Develop application locally

Deploy to QA environment and test

Deploy to production environment


The App Deployment ProblemEnvironments must be kept the same

“Works on my machine”

Set up servers to run different types of apps

Conflicts between dependency versions

Long lived servers


Infrastructure as Code

Ephemeral infrastructure

Easier to have consistently configured servers

Code and configuration are separate


Immutable Virtual MachinesCreate VMs as part of build process

VM as a unit of deployment

Devs build the app and configures environment

Slow to start up

Take up lots of resources


Virtual Machines

Infrastructure

Host OS

Virtual Machine

Dependencies

App

Virtual Machine

GuestOS

Dependencies

App

GuestOS

Containers

Infrastructure

Host OS

Container

Dependencies

App

Container

Dependencies

App


ContainersKernel virtualization, host-level performance

Consistently deployed by ops

No longer a need for specially configured servers

Can be deployed on same server or separate

Devs responsible for building app and environment


Containers

By Patrick Denker from Athens, GA (DSC04878) [CC BY 2.0 (http://creativecommons.org/licenses/by/2.0)], via Wikimedia Commons


Docker and containers

Containers support existed in Linux for a while

Docker made them accessible

Common tooling


Docker ToolingDocker Client

Docker Engine

Docker Machine

Docker Compose

Docker Swarm

Docker Registry


Docker and Linux Containers

Linux

Linux Docker Engine

REST API

Docker Client Docker Compose Docker Swarm more…


Docker ImagesContainer “templates”

Images can be local

Share with others using a registry (Docker Hub)

Created manually or using a Dockerfile

Can be tagged


Operating System ImagesBasic building block

“Clean install” of an OS

Examples • ubuntu • debian • windowsservercore


Dockerfile

• Base image • Install dependencies • Build application • Specify entry point


Dockerfile

FROM ubuntu:14.04

RUN apt-get update && apt-get install -y ruby ruby-dev

RUN gem install sinatra


Docker Build

$ docker build -t anthonychu/ruby:0.1.0 .

$ docker push anthonychu/ruby:0.1.0


Dockerfile

FROM anthonychu/ruby:0.1.0

ADD . /src

WORKDIR /src

ENTRYPOINT [“ruby”, “foo.rb"]


Docker Build

$ docker build -t anthonychu/foo .

$ docker run anthonychu/foo


Containers

Can only see its own files and processes

Can set limits on resources used by a container


Continuous Delivery PipelineDocker Hub

Dev QA Productionanthonychu/my-app:1.0


That’s Linux, but what about…

ASP.NET WebForms?

MVC, Web API, SignalR?

Dependencies that require full .NET Framework?

Don’t want to port to .NET Core?


Windows Server Containers!


Windows Server 2016

Current version is Technical Preview 5

Comes in 2 flavors • Windows Server • Nano Server

Native support for containers


Not Docker for Windows!


Docker for Windows

Windows

Boot2Docker (Linux) on Hyper-V

Docker EngineDocker Client


Docker and Windows Server Containers

Windows

Windows Docker Engine

REST API

Docker Client Docker Compose Docker Swarm more…


Demo


Demo

Windows Server 2016 and containers setup

Docker basics

Running a container


ASP.NET in containersLinux Windows Nano Server

ASP.NET Core (.NET Core) ✔ ✔ ✔

ASP.NET Core (Full Framework) Mono ✔

Web API, SignalR (OWIN Self-host) ✔

WebForms, MVC 5 (IIS) ✔


Demo


Demo

ASP.NET Web API OWIN self host

microsoft/iis image

ASP.NET WebForms in IIS


So… What’s the point of all this?


Docker all the things

Manage and deploy everything with Docker

Run multiple .NET versions on same machine

No more installing dependencies on servers


Monolith to Microservices

Dockerize monolith

Spin off features into microservices in containers

Repeat until monolith is obsolete

Strangler Application Pattern • http://www.martinfowler.com/bliki/StranglerApplication.html

http://www.martinfowler.com/bliki/StranglerApplication.html


Mixed Linux/Windows Clusters

Windows Container

Linux Container


Hyper-V Containers Windows 10


Windows Server Containers

Infrastructure

Windows Server 2016

Container

Dependencies

App

Container

Dependencies

App

Utility VM

Hyper-V Containers

Infrastructure

Windows Server 2016 / Windows 10

Container

Dependencies

App

Utility VM

Container

Dependencies

App


Hyper-V Containers

“Utility VM” - Only purpose is to run containers

Fast startup

Currently only Nano Server containers


Hyper-V Containers

Same images as Windows Server Containers

Runtime option

$ docker run --isolation=hyperv my-image


Containers on Windows 10

Windows 10 Anniversary Update

Support for Hyper-V containers only

Instructions at aka.ms/containers


Summary

Docker and containers are a big deal

Dockerize all ASP.NET applications

Windows Server containers coming soon

Manage Linux/Windows containers with same tools


Next StepsTry Windows Server 2016

Azure Container Services Windows Private Preview

http://aka.ms/containers

http://anthonychu.ca

@nthonyChu

Docker All The Things - ASP.NET 4.x and Windows Server Containers

Technology

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