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Agenda
• Introduction
• Why Docker
• Containers vs VM’s
• Use Cases
• Demo
Brian Christner
Brian.Christner@swisscom.com / @idomyowntricks
● Swisscom Cloud Architect
● Background in Containers, Cloud, & Engineering
● Docker Captain
5
The application landscape is changing
Loosely
Coupled
Services
Many Small
Servers or devices
~2000 Today
Monolithic
Big Servers
Slow
changing
Rapidly
updated
Development
VM
QA
Server
Public
Cloud
Disaster
Recovery
Contributor’s
Laptop
Production
Servers
Production
Cluster
Data Center
Containers are the catalyst
Static
Website
Web
Front End
Background
Workers
User DB
Analytics
DB
Queue
API
Endpoint
7
Docker delivers innovation, speed and savings
+ +Agility Portability Control
State of App development Survey: Q1 2016, Cornell University case study
13XMore software releases
62%Report reduction in MTTR
10XCost reduction in maintaining
existing applications
Eliminate
“works on my machine”
issues
41%Move workloads across
private/public clouds
65%Reduction in developer
onboarding time
Long vs Short Lived Apps/Containers
Long Lived Short Lived
VM’s
Reduce Costs & Streamline Operations
Containers and VMs together:
• Optimize: Added flexibility in
using infrastructure resources
• Consolidation: Greater workload
density across existing servers.
• Reduce Costs: Lower OS and
VM licensing CapEx and reduce
OpEx costs to support and
maintain smaller infrastructure
Before: One application and OS per VM
After: One container per service. Multiple
containers running per VM
Virtualization
Bins/Libs
App
OS
Bins/Libs
App
OS
Bins/Libs
App
OS
Virtualization
Bins/Libs
App
OS
Virtualization
OS
Bins/Libs
App
Docker Engine
Bins/Libs
App
Bins/Libs
App
Bins/Libs
App
Container Separation
Oscar the Ops Guy
Worries about what’s
“Outside the Container”
- Logging
- Monitoring
- Networking
All containers work the same way
(Start, Stop, etc)
Dan the Developer
Worries about what’s “Inside the
Container”
- Code
- Libraries
- Package Manager
- Data
It Worked on my Dev Box
22
Frictionless across environments
VM VM VM
VM VM VM
Swisscom Developer Portal
Home for innovators and passionate developers
developer.swisscom.com
Let’s have a
look:
DEMO
Future == Serverless
Database
Entry
Point
Entry
Point
Vote Handling
HTTP Request
Process
Vote
Handle Result
HTTP Request
Serverless Voting App
My Website & Newsletter –
BrianChristner.io
My Docker Projects –
https://github.com/vegasbrianc
Great Docker Resource –
http://veggiemonk.github.io/awesome-docker/
Docker Resources
More Docker!
• Workshops
• Architecture
• Training
Questions about Docker?
THANK YOU
Brian Christner
@idomyowntricks

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Lugano Tech Talks - Why Docker