1. Docker Moby is killing your
devops efforts
Kris Buytaert
@krisbuytaert

2. NOT this guy !NOT this guy !

3. Kris BuytaertKris Buytaert
● I used to be a Dev,I used to be a Dev,
● Then Became an OpThen Became an Op
● CTO and Open Source ConsultantCTO and Open Source Consultant
@@inuits.euinuits.eu
● Everything is a freaking DNSEverything is a freaking DNS
ProblemProblem
● Evangelizing devopsEvangelizing devops
● Organiser of #devopsdays,Organiser of #devopsdays,
#cfgmgmtcamp, #loadays, ….#cfgmgmtcamp, #loadays, ….

4. Today's Plan:Today's Plan:
● Opening some eyesOpening some eyes
● Fixing all my docker problemsFixing all my docker problems
● Reusing 8 year old slidesReusing 8 year old slides

5. C(L)AMSC(L)AMS
● CultureCulture
● (Lean)(Lean)
● AutomationAutomation
● MeasurementMeasurement
● SharingSharing
Damon Edwards and JohnDamon Edwards and John
WillisWillis

6. A global movement to improve theA global movement to improve the
quality of software delivery leveragingquality of software delivery leveraging
Open Source experience, started in GentOpen Source experience, started in Gent
in 2009in 2009

7. Because the old days:Because the old days:
● ““Put this Code Live, here's a tarball” NOW!Put this Code Live, here's a tarball” NOW!
● What dependencies ?What dependencies ?
● No machines available ?No machines available ?
● What database ?What database ?
● Security ?Security ?
● High Availability ?High Availability ?
● Scalability ?Scalability ?
● My computer can't install this ?My computer can't install this ?

8. 10 days into operations10 days into operations

9. This new 'D' hypeThis new 'D' hype
● New kid on the blockNew kid on the block
● Vagrant-lxc with a nice cliVagrant-lxc with a nice cli
● The Ultimate “devops tool”The Ultimate “devops tool”
● ““Unseen” growthUnseen” growth
● Docker is the new cool thing to doDocker is the new cool thing to do

10. DockerDocker
DockerDocker
DockerDockerDockerDocker
DockerDocker
DockerDocker

11. MobyMoby
MobyMoby
MobyMobyMobyMoby
MobyMoby
MobyMoby

12. A Enterprise ContainerA Enterprise Container
● No different from aNo different from a
full vmfull vm
● Multiple servicesMultiple services
running in onerunning in one
containercontainer
● Ssh is the defaultSsh is the default
connectionconnection

13. Elephant , MonolithElephant , Monolith
vsvs
MicroservicesMicroservices

14. Why ?Why ?
● I want a VMI want a VM
•
Please fill in these 4 formsPlease fill in these 4 forms
•
Wait 2 weeksWait 2 weeks
● RepeatRepeat
IT Departments have not adapted,IT Departments have not adapted,
'Shadow'-IT is winning'Shadow'-IT is winning

16. Docker is a Package managerDocker is a Package manager

17. Docker is a Package managerDocker is a Package manager

18. Docker is a Package managerDocker is a Package manager

19. Groovy there's a docker in myGroovy there's a docker in my
CI pipelineCI pipeline

20. These DaysThese Days
● ““Put this Code Live, here's a DockerPut this Code Live, here's a Docker
Container ”Container ”
● No machines available ?No machines available ?
● What database ? Where to store theWhat database ? Where to store the
data ?data ?
● Security ? What distro is this even ?Security ? What distro is this even ?
Bad Cows ?Bad Cows ?
● How do we monitor his ?How do we monitor his ?
● Backups ?Backups ?
● How did you build this ?How did you build this ?

21. 11 days into operations11 days into operations
● ““Put this Code Live, here's Dockerfile”Put this Code Live, here's Dockerfile”
● What corporate proxy ?What corporate proxy ?
● Oh I missed 2 other containersOh I missed 2 other containers
● Security ? What distro is this even ?Security ? What distro is this even ?
Bad Cows ?Bad Cows ?
● What do you mean “We are a RHELWhat do you mean “We are a RHEL
shop ?”shop ?”

22. Closing the gaps between devClosing the gaps between dev
and ops,and ops, AGAIN !!AGAIN !!
● Where do your containers come from ?Where do your containers come from ?
● Who build it ?Who build it ?
● Can you rebuild it ?Can you rebuild it ?
● Do you even need a containerDo you even need a container
● How do you build the hosts that run theHow do you build the hosts that run the
containers ?containers ?
● Infrastructure as code ++Infrastructure as code ++

23. Image Build by devs,Image Build by devs,
maintained by nobodymaintained by nobody

24. Can you ?Can you ?
● When GitHub is downWhen GitHub is down
??
● When rubygems.orgWhen rubygems.org
is down ?is down ?
● When someoneWhen someone
removes a Node.jsremoves a Node.js
library ?library ?
● Fix critical SecurityFix critical Security
Issues ?Issues ?
● Can your businessCan your business
surive if you answersurive if you answer

25. ● I love docker as aI love docker as a
technologytechnology
● I hate that it too oftenI hate that it too often
put us back 5 yearsput us back 5 years
with regards towith regards to
Culture adoptionCulture adoption
● Docker is an easyDocker is an easy
victim, there's othervictim, there's other
tools that createtools that create
similar situationssimilar situations
● It's still mostly aboutIt's still mostly about
It's still aboutIt's still about
collaborationcollaboration

26. ContactContact
Kris Buytaert Kris.Buytaert@inuits.euKris Buytaert Kris.Buytaert@inuits.eu
Further ReadingFurther Reading
@krisbuytaert@krisbuytaert
http://www.krisbuytaert.be/blog/http://www.krisbuytaert.be/blog/
http://www.inuits.eu/http://www.inuits.eu/
Inuits.euInuits.eu
Essensteenweg 31Essensteenweg 31
BrasschaatBrasschaat
BelgiumBelgium
891.514.231891.514.231
+32 475 961221+32 475 961221