Docker – Warum die Zukunft
im Container stattfindet
Marc Müller
Principal Consultant, 4tecture GmbH
www.4tecture.ch
@muellermarc

Marc Müller
Principal Consultant
@muellermarc

https://twitter.com/dberkholz/status/689211852157407233

Write Code
Customer use the
code
Write Code
Customer use the
code

100 deployments
per day!

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▪ Versioned artifact
▪ Isolated deployable unit
▪ Container image is bit by bit identical when
deployed
▪ Abstraction of data center resources
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▪ Orchestration is “Cattle Business”
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Server
Host OS
Hypervisor
Server
Host OS
Docker Engine
Guest
OS
Guest
OS
Guest
OS
Bins/Libs Bins/Libs
App A App A’ App B
Bins/Libs Bins/Libs
AppA
AppA’
AppB
AppB’
AppB
AppB’
AppB
AppB’
Containers are isolated, but
share OS and, where
appropriate, bins/librariesBins/Libs
Image Source: https://sec.ch9.ms/sessions/build/2016/B822.pptx

My ASP.NET Core Application
microsoft/aspnet
microsoft/dotnet
buildpack-deps:jessie-scm
buildpack-deps:jessie-curl
debian:jessie

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LinuxWindows
Process
Linux
Container
Virtual
Machines
Process
Windows
Server
Container
Hyper-V
VMs
Hyper-V
Container
Quotas, Limits Added Isolation
Kernel
Kernel
Faster, more efficient More isolated, more secure
Source: Mark Fussel (Microsoft), Azure Service Fabric - Build always-on, hyper-scalable, microservice-based cloud applications

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FROM microsoft/aspnetcore:2.0
WORKDIR /app
COPY --from=publish /app .
ENTRYPOINT ["dotnet", "a.dll"]
FROM microsoft/aspnetcore:2.0 AS base
WORKDIR /app
EXPOSE 80
FROM microsoft/aspnetcore-build:2.0 AS build
WORKDIR /src
COPY *.sln ./
COPY SampleWebApplication/SampleWebApplication.csproj
SampleWebApplication/
RUN dotnet restore
COPY . .
WORKDIR /src/SampleWebApplication
RUN dotnet build -c Release -o /app
FROM build AS publish
RUN dotnet publish -c Release -o /app
FROM base AS final
WORKDIR /app
COPY --from=publish /app .
ENTRYPOINT ["dotnet", "SampleWebApplication.dll"]

docker build –t <reponame>:<tag> .
docker image ls
REPOSITORY TAG IMAGE ID
HelloWorld latest 326387cea398

Image Source: https://docs.microsoft.com/en-us/azure/cloud-shell/overview

Developer PC / Laptop
Docker Engine
Container Container Container

App1
App2

VSTS Build
VSTS Release
Management
Docker Registry
Build App
Test
Build Container
Repo
Container Info
Deplyoment Config
Publish to Target
Host / Cluster
Container Info
Deplyoment Config
Push Host /
Cluster
Pull
Config
Artifact

VSTS
Azure Resource Group
DCOS Master
DCOS Master
Master
Agent
VSTS Agent
App1
App1
App1
App1
App1
App2
Git
Build
Release
Internet
AzureLoadBalancer
Ingress LeGo

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We are looking for
great talents to
join our team!
Apply to job@4tecture.ch
www.4tecture.ch/jobs

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